2.6.17-mm5

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm5/

Nothing very exciting here - a few buggy patches were fixed or dropped.

Boilerplate:

- See the `hot-fixes' directory for any important updates to this patchset.

- To fetch an -mm tree using git, use (for example)

git fetch git://git.kernel.org/pub/scm/linux/kernel/git/smurf/linux-trees.git v2.6.16-rc2-mm1

- -mm kernel commit activity can be reviewed by subscribing to the mm-commits mailing list.

echo "subscribe mm-commits" | mail [email protected]

- If you hit a bug in -mm and it is not obvious which patch caused it, it is most valuable if you can perform a bisection search to identify which patch introduced the bug. Instructions for this process are at

http://www.zip.com.au/~akpm/linux/patches/stuff/bisecting-mm-trees.txt

But beware that this process takes some time (around ten rebuilds and reboots), so consider reporting the bug first and if we cannot immediately identify the faulty patch, then perform the bisection search.

- When reporting bugs, please try to Cc: the relevant maintainer and mailing list on any email.

Changes since 2.6.17-mm4:

origin.patch
git-acpi.patch
git-cpufreq.patch
git-geode.patch
git-gfs2.patch
git-ia64.patch
git-infiniband.patch
git-jfs.patch
git-klibc.patch
git-hdrinstall2.patch
git-libata-all.patch
git-mtd.patch
git-netdev-all.patch
git-nfs.patch
git-ocfs2.patch
git-pcmcia-fixup.patch
git-sas.patch
git-scsi-misc.patch
git-scsi-target.patch
git-supertrak.patch
git-watchdog.patch
git-wireless.patch
git-cryptodev.patch

git trees.

-fix-sgivwfb-compile.patch -generic_file_buffered_write-handle-zero-length-iovec-segments-stable.patch -solve-config-broken-undefined-reference-to-online_page.patch -sparc-register_cpu-build-fix.patch -acpi-add-ibm-r60e-laptop-to-proc-idle-blacklist.patch -drivers-acpi-scanc-make-acpi_bus_type-static.patch
-acpi_srat-needs-acpi.patch -acpi-identify-which-device-is-not-power-manageable.patch -the-scheduled-unexport-of-insert_resource.patch -videocodec-make-1-bit-fields-unsigned.patch
-i2c-801-64bit-resource-fix.patch
-fs-jffs2-make-2-functions-static.patch
-mtd-fix-all-kernel-doc-warnings.patch
-mtd-kernel-doc-fixes-additions.patch
-af_unix-datagram-getpeersec.patch -drivers-net-irda-mcs7780c-make-struct-mcs_driver-static.patch -irda-fix-rcu-lock-pairing-on-error-path.patch -kill-open-coded-offsetof-in-cm4000_csc-zero_dev.patch -com20020_cs-more-device-support.patch -git-pcmcia-xirc2ps_cs-fix-ooops-not-a-creditcard.patch
-git-powerpc.patch
-powerpc-fix-idr-locking-in-init_new_context.patch -gregkh-pci-64bit-resource-c99-changes-for-struct-resource-declarations.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-sound-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-networks-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-pci-core-and-hotplug-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-mtd-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-ide-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-video-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-pcmcia-drivers.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-arch-and-core-code.patch -gregkh-pci-64bit-resource-fix-up-printks-for-resources-in-misc-drivers.patch -gregkh-pci-64bit-resource-introduce-resource_size_t-for-the-start-and-end-of-struct-resource.patch -gregkh-pci-64bit-resource-change-resource-core-to-use-resource_size_t.patch -gregkh-pci-64bit-resource-change-pci-core-and-arch-code-to-use-resource_size_t.patch -gregkh-pci-64bit-resource-change-pnp-core-to-use-resource_size_t.patch -gregkh-pci-64bit-resource-convert-a-few-remaining-drivers-to-use-resource_size_t-where-needed.patch -gregkh-pci-64bit-resource-finally-enable-64bit-resource-sizes.patch -gregkh-pci-i386-export-memory-more-than-4g-through-proc-iomem.patch -gregkh-pci-pci-legacy-i-o-port-free-driver-changes-to-generic-pci-code.patch -gregkh-pci-pci-legacy-i-o-port-free-driver-update-documentation-pci_txt.patch -gregkh-pci-pci-legacy-i-o-port-free-driver-make-intel-e1000-driver-legacy-i-o-port-free.patch -gregkh-pci-pci-legacy-i-o-port-free-driver-make-emulex-lpfc-driver-legacy-i-o-port-free.patch -64bit-resource-convert-a-few-remaining-drivers-to-use-resource_size_t-where-needed-8139cp.patch -bugfix-pci-legacy-i-o-port-free-driver.patch -insert-identical-resources-above-existing-resources.patch -clear-abnormal-poweroff-flag-on-via-southbridges-fix-resume.patch -clear-abnormal-poweroff-flag-on-via-southbridges-fix-resume-fix.patch -small-whitespace-cleanup-for-qlogic-driver.patch -mpt_interrupt-should-return-irq_none-when.patch -qla1280-fix-section-mismatch-warnings.patch -ehci-fix-bogus-alteration-of-a-local-variable.patch
-ipaqc-bugfixes.patch
-ipaqc-timing-parameters.patch -if-0-drivers-usb-input-hid-corechid_find_field_by_usage.patch -usb-remove-empty-destructor-from-drivers-usb-mon-mon_textc.patch -zoned-vm-counters-create-vmstatc-h-from-page_allocc-h.patch -zoned-vm-counters-create-vmstatc-h-from-page_allocc-h-s390-fix.patch -zoned-vm-counters-create-vmstatc-h-from-page_allocc-h-fix.patch -zoned-vm-counters-create-vmstatc-h-from-page_allocc-h-fix-2.patch -zoned-vm-counters-basic-zvc-zoned-vm-counter-implementation.patch -zoned-vm-counters-basic-zvc-zoned-vm-counter-implementation-tidy.patch -zoned-vm-counters-basic-zvc-zoned-vm-counter-implementation-speedup.patch -zoned-vm-counters-basic-zvc-zoned-vm-counter-implementation-speedup-fix.patch -zoned-vm-counters-basic-zvc-zoned-vm-counter-implementation-export-vm_stat.patch -zoned-vm-counters-convert-nr_mapped-to-per-zone-counter.patch -zoned-vm-counters-convert-nr_mapped-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_pagecache-to-per-zone-counter.patch -zoned-vm-counters-remove-nr_file_mapped-from-scan-control-structure.patch -zoned-vm-counters-remove-nr_file_mapped-from-scan-control-structure-fix.patch -zoned-vm-counters-split-nr_anon_pages-off-from-nr_file_mapped.patch -zoned-vm-counters-zone_reclaim-remove-proc-sys-vm-zone_reclaim_interval.patch -zoned-vm-counters-conversion-of-nr_slab-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_slab-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_slab-to-per-zone-counter-fix-2.patch -zoned-vm-counters-conversion-of-nr_pagetables-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_pagetables-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_dirty-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_dirty-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_writeback-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_writeback-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_unstable-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_unstable-to-per-zone-counter-nfs-fix.patch -zoned-vm-counters-conversion-of-nr_unstable-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_bounce-to-per-zone-counter.patch -zoned-vm-counters-conversion-of-nr_bounce-to-per-zone-counter-fix.patch -zoned-vm-counters-conversion-of-nr_bounce-to-per-zone-counter-fix-2.patch -zoned-vm-counters-remove-useless-struct-wbs.patch -zoned-vm-counters-remove-read_page_state.patch -use-zoned-vm-counters-for-numa-statistics-v3.patch -light-weight-event-counters-v5.patch -slab-consolidate-code-to-free-slabs-from-freelist.patch -slab-consolidate-code-to-free-slabs-from-freelist-fix.patch -selinux-extend-task_kill-hook-to-handle-signals-sent.patch -selinux-add-security-hook-call-to-kill_proc_info_as_uid.patch -selinux-update-usb-code-with-new-kill_proc_info_as_uid.patch -add-smp_setup_processor_id.patch
-x86-dont-print-out-smp-info-on-up-kernels.patch -keys-allow-in-kernel-key-requestor-to-pass-auxiliary-data-to-upcaller.patch -keys-allow-in-kernel-key-requestor-to-pass-auxiliary-data-to-upcaller-try-2.patch -cond_resched-fix.patch
-ufs-printk-fix.patch
-arch-i386-mach-visws-setupc-remove-dummy-function-calls.patch -re-add-config_sound_sscape.patch
-remove-devinit-from-ioc4-pci_driver.patch
-deref-in-drivers-block-paride-pfc.patch -chardev-gpio-for-scx200-pc-8736x-add-proper-kconfig-makefile-entries.patch -edac-pci-device-to-device-cleanup.patch
-edac-mc-numbers-refactor-1-of-2.patch
-edac-mc-numbers-refactor-2-of-2.patch
-edac-probe1-cleanup-1-of-2.patch
-edac-probe1-cleanup-2-of-2.patch
-edac-maintainers-update.patch
-i4l-remove-unneeded-include-linux-isdn-tpamh.patch -skb-leak-in-drivers-isdn-i4l-isdn_x25ifacec.patch -knfsd-improve-the-test-for-cross-device-rename-in-nfsd.patch -knfsd-fixing-missing-expkey-support-for-fsid-type-3.patch -knfsd-remove-noise-about-filehandle-being-uptodate.patch -knfsd-ignore-ref_fh-when-crossing-a-mountpoint.patch -knfsd-nfsd4-fix-open_confirm-locking.patch -knfsd-nfsd-call-nfsd_setuser-on-fh_compose-fix-nfsd4-permissions-problem.patch -knfsd-nfsd4-remove-superfluous-grace-period-checks.patch -knfsd-nfsd-fix-misplaced-fh_unlock-in-nfsd_link.patch -knfsd-svcrpc-gss-simplify-rsc_parse.patch -knfsd-nfsd4-fix-some-open-argument-tests.patch -knfsd-nfsd4-fix-open-flag-passing.patch -knfsd-svcrpc-simplify-nfsd-rpcsec_gss-integrity-code.patch -knfsd-nfsd-mark-rqstp-to-prevent-use-of-sendfile-in-privacy-case.patch -knfsd-svcrpc-gss-server-side-implementation-of-rpcsec_gss-privacy.patch -drivers-md-raid5c-remove-an-unused-variable.patch -genirq-rename-desc-handler-to-desc-chip.patch -genirq-rename-desc-handler-to-desc-chip-power-fix.patch -genirq-rename-desc-handler-to-desc-chip-ia64-fix.patch -genirq-rename-desc-handler-to-desc-chip-ia64-fix-2.patch -genirq-rename-desc-handler-to-desc-chip-terminate_irqs-fix.patch -genirq-rename-desc-handler-to-desc-chip-sparc64-fix.patch -genirq-sem2mutex-probe_sem-probing_active.patch -genirq-cleanup-merge-irq_affinity-into-irq_desc.patch -genirq-cleanup-merge-irq_affinity-into-irq_desc-sparc64-fix.patch -genirq-cleanup-remove-irq_descp.patch
-genirq-cleanup-remove-irq_descp-fix.patch
-genirq-cleanup-remove-fastcall.patch
-genirq-cleanup-misc-code-cleanups.patch -genirq-cleanup-reduce-irq_desc_t-use-mark-it-obsolete.patch -genirq-cleanup-include-linux-irqh.patch -genirq-cleanup-merge-irq_dir-smp_affinity_entry-into-irq_desc.patch -genirq-cleanup-merge-pending_irq_cpumask-into-irq_desc.patch -genirq-cleanup-turn-arch_has_irq_per_cpu-into-config_irq_per_cpu.patch -genirq-debug-better-debug-printout-in-enable_irq.patch -genirq-add-retrigger-irq-op-to-consolidate-hw_irq_resend.patch -genirq-doc-comment-include-linux-irqh-structures.patch -genirq-doc-handle_irq_event-and-__do_irq-comments.patch -genirq-cleanup-no_irq_type-cleanups.patch -genirq-doc-add-design-documentation.patch
-genirq-add-genirq-sw-irq-retrigger.patch
-genirq-add-irq_noprobe-support.patch
-genirq-add-irq_norequest-support.patch
-genirq-add-irq_noautoen-support.patch
-genirq-update-copyrights.patch
-genirq-core.patch
-genirq-core-revert-noisiness-on-spurious-interrupts.patch
-genirq-msi-fixes-2.patch
-genirq-add-irq-chip-support.patch
-genirq-add-irq-chip-support-fix.patch -genirq-add-irq-chip-support-misroute-irq-dont-call-desc-chip-end.patch -genirq-add-handle_bad_irq.patch
-genirq-add-irq-wake-power-management-support.patch -genirq-add-sa_trigger-support.patch -genirq-cleanup-no_irq_type-no_irq_chip-rename.patch -genirq-more-verbose-debugging-on-unexpected-irq-vectors.patch -genirq-ia64-build-fix.patch
-genirq-add-irq_type_sense_mask.patch -genirq-add-irq-chip-support-fasteoi-handler-handle-interrupt-disabling.patch -genirq-irq-document-what-an-irq-is.patch -genirq-add-chip-eoi-fastack-fasteoi-core.patch -genirq-add-chip-eoi-fastack-fasteoi-fix.patch

Merged into mainline or a subsystem tree.

+pi-futex-fix-mm_struct-memory-leak.patch +irq-use-sa_percpu_irq-not-irq_per_cpu-for-irqactionflags.patch +irq-warning-message-cleanup.patch +edac-bug-fix-module-names-quoted-in-sysfs.patch +pi-futex-futex_wake-lockup-fix.patch +acpi-identify-which-device-is-not-power-manageable.patch

2.6.17-rc1 queue

-git-acpi-fixup.patch

Unneeded.

-cpu_relax-use-in-acpi-lock.patch
-cpu_relax-use-in-acpi-lock-fix.patch

Dropped.

+pnpacpi-support-shareable-interrupts.patch
+serial-allow-shared-8250_pnp-interrupts.patch

pnpacpi fixes

-git-agpgart-fixup.patch

Unneeded.

+gregkh-driver-driver-core-bus.c-cleanups.patch +gregkh-driver-remove-kernel-power-pm.c-pm_unregister_all.patch +gregkh-driver-the-scheduled-unexport-of-insert_resource.patch +gregkh-driver-suspend-infrastructure-cleanup-and-extension.patch +gregkh-driver-suspend-pci.patch

Driver tree updates.

+gregkh-i2c-w1-fix-idle-check-loop-in-ds2482.patch +gregkh-i2c-w1-remove-drivers-w1-w1.h.patch

I2C tree updates

+ib-ipath-name-zero-counter-offsets-so-its-clear.patch +ib-ipath-update-copyrights-and-other-strings-to.patch +ib-ipath-share-more-common-code-between-rc-and-uc.patch +ib-ipath-fix-an-indenting-problem.patch +ib-ipath-fix-shared-receive-queues-for-rc.patch +ib-ipath-allow-diags-on-any-unit.patch +ib-ipath-update-some-comments-and-fix-typos.patch +ib-ipath-remove-some-duplicate-code.patch +ib-ipath-dont-allow-resources-to-be-created-with.patch +ib-ipath-fix-some-memory-leaks-on-failure-paths.patch +ib-ipath-return-an-error-for-unknown-multicast-gid.patch +ib-ipath-report-correct-device-identification.patch +ib-ipath-enforce-device-resource-limits.patch +ib-ipath-removed-unused-field-ipath_kregvirt-from.patch +ib-ipath-print-better-debug-info-when-handling.patch +ib-ipath-enable-freeze-mode-when-shutting-down.patch +ib-ipath-use-more-appropriate-gfp-flags.patch +ib-ipath-use-vmalloc-to-allocate-struct.patch +ib-ipath-memory-management-cleanups.patch +ib-ipath-reduce-overhead-on-receive-interrupts.patch +ib-ipath-fixed-bug-9776.patch +ib-ipath-fix-lost-interrupts-on-ht-400.patch +ib-ipath-disallow-send-of-invalid-packet-sizes.patch +ib-ipath-dont-confuse-the-max-message-size-with.patch +ib-ipath-removed-redundant-statements.patch +ib-ipath-check-for-valid-lid-and-multicast-lids.patch +ib-ipath-fixes-to-performance-get-counters-for-ib.patch +ib-ipath-rc-receive-interrupt-performance-changes.patch +ib-ipath-purge-sps_lid-and-sps_mlid-arrays.patch +ib-ipath-drop-the-stats-sysfs-attribute-group.patch +ib-ipath-support-more-models-of-infinipath-hardware.patch +ib-ipath-read-write-correct-sizes-through-diag.patch +ib-ipath-fix-a-bug-that-results-in-addresses-near.patch +ib-ipath-remove-some-if-0-code-related-to.patch +ib-ipath-ignore-receive-queue-size-if-srq-is.patch +ib-ipath-namespace-cleanup-replace-ips-with-ipath.patch

Infiniband updates

+ib-ipath-fixes-a-bug-where-our-delay-for-eeprom-no.patch

Unpopular infiniband update

-revert-input-atkbd-fix-hangeul-hanja-keys.patch

Dropped.

+if-0-drivers-usb-input-hid-corechid_find_field_by_usage.patch

USB cleanup.

+ia64-kbuild-fix.patch

Fix kbuild for ia64

-revert-ignore-makes-built-in-rules-variables.patch

Unneeded.

+git-netdev-all-fixup.patch

Fix reject due to git-netdev-all.patch

+8139cp-printk-fix.patch

Fix printk warning

-ni5010-netcard-cleanup-fix.patch

Folded into ni5010-netcard-cleanup.patch

+ixgb-add-pci-error-recovery-callbacks.patch
+e100-disable-device-on-pci-error.patch
+e1000-disable-device-on-pci-error.patch

netdev updates

+fix-a-warning-in-ioatdma.patch
+ioat-fix-header-file-kernel-doc.patch
+ioat-fix-kernel-doc-in-source-files.patch

IOAT driver fixlets

+fs-nfs-make-2-functions-static.patch

NFS cleanup

+fix-implicit-declaration-on-cell.patch

powerpc fix

-git-sas-sas_discover-build-fix.patch

Dropped.

-serial-add-tsi108-8250-serial-support-fix.patch

Folded into serial-add-tsi108-8250-serial-support.patch

+gregkh-pci-pci-poper-prototype-for-arch-i386-pci-pcbios.c-pcibios_sort.patch +gregkh-pci-pci-clear-abnormal-poweroff-flag-on-via-southbridges-fix-resume.patch +gregkh-pci-msi-merge-existing-msi-disabling-quirks.patch +gregkh-pci-msi-rename-pci_cap_id_ht_irqconf-into-pci_cap_id_ht.patch +gregkh-pci-msi-blacklist-pci-e-chipsets-depending-on-hypertransport-msi-capabality.patch +gregkh-pci-msi-factorize-common-msi-detection-code-from-pci_enable_msi-and-msix.patch +gregkh-pci-msi-stop-inheriting-bus-flags-and-check-root-chipset-bus-flags-instead.patch +gregkh-pci-msi-drop-pci_msi_quirk.patch +gregkh-pci-resources-insert-identical-resources-above-existing-resources.patch

PCI tree updates

-drivers-scsi-qla2xxx-make-more-some-functions-static.patch

Folded into drivers-scsi-qla2xxx-make-some-functions-static.patch

+stc-improve-sense-output.patch +my-name-is-ingo-molnar-you-killed-my-make-allyesconfig-prepare-to-die.patch

scsi fixes.

+gregkh-usb-usb-unusual_devs-entry-for-samsung-mp3-player.patch +gregkh-usb-usbcore-fixes-for-hub_port_resume.patch +gregkh-usb-usb-storage-us_fl_max_sectors_64-flag.patch +gregkh-usb-usb-storage-uname-in-pr-sc-unneeded-message.patch +gregkh-usb-usb-serial-visor-fix-race-in-open-close.patch +gregkh-usb-usb-serial-ftdi_sio-prevent-userspace-dos.patch +gregkh-usb-usb-kill-compiler-warning-in-quirk_usb_handoff_ohci.patch +gregkh-usb-usb-fix-pointer-dereference-in-drivers-usb-misc-usblcd.patch +gregkh-usb-usb-add-driver-for-non-composite-sierra-wireless-devices.patch +gregkh-usb-usb-ehci-fix-bogus-alteration-of-a-local-variable.patch +gregkh-usb-usb-ipaq.c-bugfixes.patch +gregkh-usb-usb-ipaq.c-timing-parameters.patch +gregkh-usb-usb-remove-empty-destructor-from-drivers-usb-mon-mon_text.c.patch +gregkh-usb-usb-ohci-s3c2410.c-clock-now-usb-bus-host.patch +gregkh-usb-usb-at91-udc-updates-mostly-power-management.patch +gregkh-usb-usb-at91-ohci-updates-mostly-power-management.patch +gregkh-usb-usb-ohci-controller-support-for-pnx4008.patch +gregkh-usb-usb-move-linux-usb_otg.h-to-linux-usb-otg.h.patch +gregkh-usb-usb-pxa2xx_udc-understands-gpio-based-vbus-sensing.patch +gregkh-usb-usb-allow-compile-in-g_ether-fix-typo.patch

USB updates

+kill-usb-kconfig-warning.patch

Fix it.

-bcm43xx-opencoded-locking-fix.patch

Folded into bcm43xx-opencoded-locking.patch

+x86_64-mm-defconfig-update.patch +x86_64-mm-i386-up-generic-arch.patch +x86_64-mm-i386-numa-summit-check.patch +x86_64-mm-temp-revert-arch-perfmon.patch +x86_64-mm-add-performance-counter-reservation-framework-for-up-kernels.patch +x86_64-mm-utilize-performance-counter-reservation-framework-in-oprofile.patch +x86_64-mm-add-smp-support-on-x86_64-to-reservation-framework.patch +x86_64-mm-add-smp-support-on-i386-to-reservation-framework.patch +x86_64-mm-cleanup-nmi-interrupt-path.patch +x86_64-mm-rdtscp-macros.patch
+x86_64-mm-init-rdtscp.patch
+x86_64-mm-mce-amd-fix.patch

x86-64 tree updates (partial - I dropped all the NMI changes because they don't apply and look like they wouldn't build if I fixed them all).

+zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o.patch +zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o-tunable.patch +zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o-tunable-rename.patch

NUMA memory reclaim tweak.

+mm-fixup-do_wp_page.patch

MM fix

+mm-msync-cleanup-fix.patch

Fix mm-msync-cleanup.patch

+mm-make-functions-static.patch

MM cleanup

-lockdep-add-disable-enable_irq_lockdep-api-fix.patch

Folded into lockdep-add-disable-enable_irq_lockdep-api.patch

-lockdep-stacktrace-subsystem-s390-support-fix.patch

Folded into lockdep-stacktrace-subsystem-s390-support.patch

-lockdep-irqtrace-subsystem-x86_64-support-fix.patch -lockdep-irqtrace-subsystem-x86_64-support-fix-2.patch

Folded into lockdep-irqtrace-subsystem-x86_64-support.patch

-lockdep-core-improve-non-static-key-warning-message.patch -lockdep-core-cleanups.patch -lockdep-core-cleanups-2.patch

Folded into lockdep-core.patch

-lockdep-annotate-vlan-net-device-as-being-a-special-class-fix.patch

Folded into lockdep-annotate-vlan-net-device-as-being-a-special-class.patch

+lockdep-core-improve-bug-messages.patch
+lockdep-core-add-set_class_and_name.patch
+lockdep-core-add-set_class_and_name-fix.patch
+lockdep-annotate-blkdev-nesting-fix.patch
+lockdep-annotate-sk_locks.patch
+lockdep-annotate-sk_locks-fix.patch

lockdep updates

+smp-alternatives-skip-with-up-kernels.patch

x86 alternatives cleanup

-hpet-rtc-emulation-add-watchdog-timer.patch
+hpet-rtc-emulation-add-watchdog-timer-2.patch

Updated version of this ancient patch.

-destroy-the-dentries-contributed-by-a-superblock-on-unmounting.patch -destroy-the-dentries-contributed-by-a-superblock-on-unmounting-fix.patch

Dropped.

+fix-is_err-threshold-value.patch +rtc-class-driver-for-samsung-s3c-series-soc.patch +rtc-class-driver-for-samsung-s3c-series-soc-tidy.patch +hotcpu_notifier-fixes.patch +add-___rodata-sections-to-asm-generic-sectionsh.patch +add-___rodata-sections-to-asm-generic-sectionsh-fix.patch +s390-put-sys_call_table-into-rodata-section-and-write-protect-it.patch +reiserfs-update-ctime-and-mtime-on-expanding-truncate.patch +kernel-doc-consistent-text-man-mode-output.patch +fix-problem-with-atapi-dma-on-it8212-in-linux.patch +kernel-doc-make-man-text-mode-function-output-same.patch +fix-and-enable-edac-sysfs-operation.patch +edac-new-opteron-athlon64-memory-controller-driver.patch +edac-new-opteron-athlon64-memory-controller-driver-tidy.patch +drivers-block-nbdc-compile-fix.patch +pnp-suppress-request_irq-warning.patch

Misc patches.

+per-task-delay-accounting-taskstats-interface-tidy.patch

Tweak per-task-delay-accounting-taskstats-interface.patch

+jmicron-pci-identifiers.patch

PCI IDs for IDE drivers

+fbdev-add-framebuffer-and-display-update-module-support.patch +vt-remove-vt-specific-declarations-and-definitions-from.patch +tty-remove-include-of-screen_infoh-from-ttyh.patch

fbdev updates

+statistics-infrastructure-update-6.patch
+statistics-infrastructure-update-7.patch
+statistics-infrastructure-update-8.patch

statistics updates

+genirq-convert-the-x86_64-architecture-to-irq-chips.patch +genirq-add-chip-eoi-fastack-fasteoi-x86_64.patch +genirq-convert-the-i386-architecture-to-irq-chips.patch +genirq-convert-the-i386-architecture-to-irq-chips-fix-2.patch +genirq-add-chip-eoi-fastack-fasteoi-x86.patch +genirq-irq-convert-the-move_irq-flag-from-a-32bit-word-to-a-single-bit.patch +genirq-irq-add-moved_masked_irq.patch +genirq-x86_64-irq-reenable-migrating-irqs-to-other-cpus.patch +genirq-x86_64-irq-reenable-migrating-irqs-to-other-cpus-fix.patch +genirq-msi-simplify-msi-enable-and-disable.patch +genirq-msi-simplify-msi-enable-and-disable-fix.patch +genirq-msi-make-the-msi-boolean-tests-return-either-0-or-1.patch +genirq-msi-implement-helper-functions-read_msi_msg-and-write_msi_msg.patch +genirq-msi-refactor-the-msi_ops.patch +genirq-msi-simplify-the-msi-irq-limit-policy.patch +genirq-irq-add-a-dynamic-irq-creation-api.patch +genirq-ia64-irq-dynamic-irq-support.patch +genirq-ia64-irq-dynamic-irq-support-fix.patch +genirq-i386-irq-dynamic-irq-support.patch +genirq-i386-irq-dynamic-irq-support-fix.patch +genirq-x86_64-irq-dynamic-irq-support.patch +genirq-msi-make-the-msi-code-irq-based-and-not-vector-based.patch +genirq-x86_64-irq-move-msi-message-composition-into-io_apicc.patch +genirq-i386-irq-move-msi-message-composition-into-io_apicc.patch +genirq-msi-only-build-msi-apicc-on-ia64.patch +genirq-x86_64-irq-remove-the-msi-assumption-that-irq-==-vector.patch +genirq-i386-irq-remove-the-msi-assumption-that-irq-==-vector.patch +genirq-i386-irq-remove-the-msi-assumption-that-irq-==-vector-fix.patch +genirq-i386-irq-remove-the-msi-assumption-that-irq-==-vector-fix-tidies.patch +genirq-irq-remove-msi-hacks.patch +genirq-irq-generalize-the-check-for-hardirq_bits.patch +genirq-x86_64-irq-make-the-external-irq-handlers-report-their-vector-not-the-irq-number.patch +genirq-x86_64-irq-make-vector_irq-per-cpu.patch +genirq-x86_64-irq-kill-gsi_irq_sharing.patch +genirq-x86_64-irq-kill-irq-compression.patch

Restore the genirq implementation for various architectures.

-ro-bind-mounts-prepare-for-write-access-checks-collapse-if.patch -ro-bind-mounts-r-o-bind-mount-prepwork-move-open_nameis-vfs_create.patch -ro-bind-mounts-add-vfsmount-writer-count.patch -ro-bind-mounts-elevate-mnt-writers-for-callers-of-vfs_mkdir.patch -ro-bind-mounts-elevate-write-count-during-entire-ncp_ioctl.patch -ro-bind-mounts-elevate-write-count-during-entire-ncp_ioctl-tidy.patch -ro-bind-mounts-sys_symlinkat-elevate-write-count-around-vfs_symlink.patch -ro-bind-mounts-elevate-mount-count-for-extended-attributes.patch -ro-bind-mounts-sys_linkat-elevate-write-count-around-vfs_link.patch -ro-bind-mounts-mount_is_safe-add-comment.patch -ro-bind-mounts-unix_find_other-elevate-write-count-for-touch_atime.patch -ro-bind-mounts-elevate-write-count-over-calls-to-vfs_rename.patch -ro-bind-mounts-tricky-elevate-write-count-files-are-opened.patch -ro-bind-mounts-elevate-writer-count-for-do_sys_truncate.patch -ro-bind-mounts-elevate-write-count-for-do_utimes.patch -ro-bind-mounts-elevate-write-count-for-do_sys_utime-and-touch_atime.patch -ro-bind-mounts-sys_mknodat-elevate-write-count-for-vfs_mknod-create.patch -ro-bind-mounts-elevate-mnt-writers-for-vfs_unlink-callers.patch -ro-bind-mounts-do_rmdir-elevate-write-count.patch -ro-bind-mounts-elevate-writer-count-for-custom-struct-file.patch -ro-bind-mounts-honor-r-w-changes-at-do_remount-time.patch

Dropped.

+the-scheduled-removal-of-some-oss-drivers.patch

Remove lots of OSS drivers

+make-more-file_operation-structs-static.patch +make-more-file_operation-structs-static-fix.patch

constify some file_operations structs.

-slab-leak-detector.patch

Dropped.

+kernel-printkc-export_symbol_unused.patch +mm-bootmemc-export_unused_symbol.patch +mm-memoryc-export_unused_symbol.patch +mm-mmzonec-export_unused_symbol.patch +fs-read_writec-export_unused_symbol.patch +export_unused_symbolgpl-unregister_die_notifier.patch +kernel-softirqc-export_unused_symbol.patch

Fiddle with exports.

All 791 patches:

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm5/patch-list

Ouch:

Bootdata ok (command line is ro root=/dev/md0 panic=60 console=ttyS0,57600 single)
Linux version 2.6.17-mm5 ([email protected]) (gcc version 4.1.1 20060629 (Red Hat 4.1.1-6)) #1 SMP Sat Jul 1 22:59:00 NZST 2006 BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000003f670000 (usable)
BIOS-e820: 000000003f670000 - 000000003f6e9000 (ACPI NVS)
BIOS-e820: 000000003f6e9000 - 000000003f6ec000 (usable)
BIOS-e820: 000000003f6ec000 - 000000003f6ff000 (ACPI data)
BIOS-e820: 000000003f6ff000 - 000000003f700000 (usable)
DMI 2.3 present.
ACPI: PM-Timer IO Port: 0x408
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 15:4 APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
Processor #1 15:4 APIC version 20
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Setting APIC routing to flat
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 40000000 (gap: 3f700000:c0900000)
Built 1 zonelists. Total pages: 254547
Kernel command line: ro root=/dev/md0 panic=60 console=ttyS0,57600 single
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Checking aperture...
Memory: 1015044k/1039360k available (2569k kernel code, 22788k reserved, 1660k data, 216k init)
Calibrating delay using timer specific routine.. 6006.40 BogoMIPS (lpj=12012800)
Security Framework v1.0.0 initialized

SELinux:  Initializing.
SELinux:  Starting in permissive mode
selinux_register_security:  Registering secondary module capability

Capability LSM initialized as secondary
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 2048K
using mwait in idle threads.
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
CPU0: Thermal monitoring enabled (TM1)
Freeing SMP alternatives: 28k freed
ACPI: Core revision 20060623
Using local APIC timer interrupts.
result 12500450
Detected 12.500 MHz APIC timer.
Booting processor 1/2 APIC 0x1
Initializing CPU#1
Calibrating delay using timer specific routine.. 5999.87 BogoMIPS (lpj=11999755)
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 2048K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
CPU1: Thermal monitoring enabled (TM1)
Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 03
Brought up 2 CPUs
testing NMI watchdog ... OK.
time.c: Using 14.318180 MHz WALL HPET GTOD HPET/TSC timer.
time.c: Detected 3000.123 MHz processor.
migration_cost=4
checking if image is initramfs... it is
Freeing initrd memory: 877k freed
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: BIOS Bug: MCFG area at f0000000 is not E820-reserved
PCI: Not using MMCONFIG.
PCI: Using configuration type 1
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
ACPI: Assume root bridge [\_SB_.PCI0] bus is 0
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 *10 11 12)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 *9 10 11 12)
Intel 82802 RNG detected
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 0
hpet0: 3 64-bit timers, 14318180 Hz
PCI-GART: No AMD northbridge found.
PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
PCI: Bridge: 0000:00:1c.0
IO window: 2000-2fff
MEM window: 48000000-480fffff
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.2
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.3
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.4
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.5
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1e.0
IO window: 1000-1fff
MEM window: disabled.
PREFETCH window: disabled.
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
TCP established hash table entries: 131072 (order: 9, 2097152 bytes) TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
audit: initializing netlink socket (disabled) audit(1151751831.012:1): initialized
SELinux: Registering netfilter hooks
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered (default)
assign_interrupt_mode Found MSI capability
assign_interrupt_mode Found MSI capability
assign_interrupt_mode Found MSI capability
assign_interrupt_mode Found MSI capability
assign_interrupt_mode Found MSI capability
ACPI: Power Button (FF) [PWRF]
ACPI: Sleep Button (CM) [SLPB]
ACPI: Getting cpuindex for acpiid 0x3
ACPI: Getting cpuindex for acpiid 0x4
Real Time Clock Driver v1.12ac
Linux agpgart interface v0.101 (c) Dave Jones
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled ÿserial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ACPI: PCI Interrupt 0000:06:03.0[A] -> GSI 19 (level, low) -> IRQ 19 0000:06:03.0: ttyS1 at I/O 0x1000 (irq = 19) is a 16550A 0000:06:03.0: ttyS2 at I/O 0x1008 (irq = 19) is a 16550A
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
RAMDISK driver initialized: 4 RAM disks of 16384K size 1024 blocksize Intel(R) PRO/1000 Network Driver - version 7.0.38-k4-NAPI
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16
e1000: 0000:01:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1) 00:13:20:60:b4:23
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH7: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
ICH7: chipset revision 1
ICH7: not 100% native mode: will probe irqs later

    ide0: BM-DMA at 0x30b0-0x30b7, BIOS settings: hda:DMA, hdb:pio
hda: PIONEER DVD-RW DVR-111D, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Unable to handle kernel NULL pointer dereference at 00000000000000ce RIP:
 [<ffffffff80363a96>] pci_msi_supported+0x37/0x4b
PGD 0
Oops: 0000 [1] SMP
last sysfs file:
CPU 0
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.17-mm5 #1
RIP: 0010:[<ffffffff80363a96>]  [<ffffffff80363a96>] pci_msi_supported+0x37/0x4b
RSP: 0000:ffff81003f601b88  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff81003ec659c8 RCX: 00000000481a0000
RDX: 00000000481a03ff RSI: ffff810037f9aa80 RDI: ffff81003ec65800
RBP: ffff81003f601b88 R08: 0000000000000000 R09: 0000000000000000
R10: ffff810037f9aa80 R11: 0000000000000040 R12: ffff81003ec65800
R13: 0000000000000000 R14: ffffffff805a0620 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffffffff80685000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000000000000ce CR3: 0000000000201000 CR4: 00000000000006e0
Process swapper (pid: 1, threadinfo ffff81003f600000, task ffff810001fb8740)
Stack:  ffff81003f601bf8 ffffffff80364909 ffff81003f601bc8 ffffffff8035dbee
 0000000000000000 0000000000000005 ffffffff804c8166 ffff81003ec65800
 ffff81003f601bf8 ffff81003ec659c8 ffff81003ec65800 0000000000000000
Call Trace:
 [<ffffffff80364909>] pci_enable_msi+0x19/0x2f2
 [<ffffffff8035dbee>] pci_request_region+0xce/0x180
 [<ffffffff803e8867>] ahci_init_one+0x88/0x93a
 [<ffffffff8026311d>] wait_for_completion+0xb2/0x112
 [<ffffffff80280b4f>] default_wake_function+0x0/0xf
 [<ffffffff80290dcc>] call_usermodehelper_keys+0xd4/0xe8
 [<ffffffff80290de0>] __call_usermodehelper+0x0/0x64
 [<ffffffff8025affa>] kobject_get+0x1a/0x24
 [<ffffffff8035ff1c>] pci_device_probe+0x4d/0x78
 [<ffffffff803aaa8f>] driver_probe_device+0x5c/0xb4
 [<ffffffff803aabc9>] __driver_attach+0x67/0xb9
 [<ffffffff803aab62>] __driver_attach+0x0/0xb9
 [<ffffffff803aa44f>] bus_for_each_dev+0x4f/0x79
 [<ffffffff803aa9bc>] driver_attach+0x1c/0x1e
 [<ffffffff803aa01a>] bus_add_driver+0x7a/0x143
 [<ffffffff803aae63>] driver_register+0x9f/0xa6
 [<ffffffff80280b6e>] wake_up_process+0x10/0x12
 [<ffffffff80360107>] __pci_register_driver+0x59/0x7e
 [<ffffffff806b7799>] ahci_init+0x12/0x14
 [<ffffffff80267ece>] init+0x14e/0x2c2
 [<ffffffff80227b67>] schedule_tail+0x37/0x9e
 [<ffffffff80260972>] child_rip+0x8/0x12
 [<ffffffff80267d80>] init+0x0/0x2c2
 [<ffffffff8026096a>] child_rip+0x0/0x12


Code: f6 80 ce 00 00 00 01 75 04 31 c0 eb 05 b8 ff ff ff ff 5d c3
RIP  [<ffffffff80363a96>] pci_msi_supported+0x37/0x4b
 RSP <ffff81003f601b88>

CR2: 00000000000000ce
<0>Kernel panic - not syncing: Attempted to kill init! <0>Rebooting in 60 seconds..

Hardware is listed at http://www.reub.net/files/kernel/system-hardware

Reuben

Well I didn't say that new buggy patches weren't added.

It oopsed here:

static
int pci_msi_supported(struct pci_dev * dev)

{
	struct pci_dev *pdev;

	if (!pci_msi_enable || !dev || dev->no_msi)
		return -1;

	/* find root complex for our device */
	pdev = dev;
	while (pdev->bus && pdev->bus->self)
		pdev = pdev->bus->self;

	/* check its bus flags */
	if (pdev->subordinate->bus_flags & PCI_BUS_FLAGS_NO_MSI)
		return -1;

	return 0;
}

pdev->subordinate is NULL.

Two patch series touch that file. The generic-irq wire-up and a couple of new ones in Greg's tree. I'd be suspecting gregkh-pci-msi-stop-inheriting-bus-flags-and-check-root-chipset-bus-flags-instead.patch.

To confirm that, could you please test 2.6.17 plus
http://www.zip.com.au/~akpm/linux/patches/stuff/rf.bz2 with the same .config? That's everything up to but not including the genirq changes.

You may find that this gets things going again:

@@ -913,6 +913,9 @@ int pci_msi_supported(struct pci_dev * d
 	while (pdev->bus && pdev->bus->self)
 		pdev = pdev->bus->self;
 
+	if (!pdev->subordinate)
+		return -1;
+
 	/* check its bus flags */
 	if (pdev->subordinate->bus_flags & PCI_BUS_FLAGS_NO_MSI)
 		return -1;

_

Or disable CONFIG_PCI_MSI.

  CC      arch/x86_64/kernel/smp.o
  CC      arch/x86_64/kernel/smpboot.o
  AS      arch/x86_64/kernel/trampoline.o
  CC      arch/x86_64/kernel/apic.o
  CC      arch/x86_64/kernel/nmi.o
  CC      arch/x86_64/kernel/io_apic.o

arch/x86_64/kernel/io_apic.c: In function 'ioapic_register_intr':
arch/x86_64/kernel/io_apic.c:887: error: 'handle_fastack_irq' undeclared (first use in this function)
arch/x86_64/kernel/io_apic.c:887: error: (Each undeclared identifier is reported only once
arch/x86_64/kernel/io_apic.c:887: error: for each function it appears in.) arch/x86_64/kernel/io_apic.c: In function 'setup_ExtINT_IRQ0_pin':
arch/x86_64/kernel/io_apic.c:992: error: 'handle_fastack_irq' undeclared (first use in this function)
arch/x86_64/kernel/io_apic.c: In function 'check_timer':
arch/x86_64/kernel/io_apic.c:1830: error: 'handle_fastack_irq' undeclared (first use in this function)
make[1]: *** [arch/x86_64/kernel/io_apic.o] Error 1
make: *** [arch/x86_64/kernel] Error 2
[root@tornado linux-2.6-mm-temp-mm5tester]#

No go :(

Yes it does. (Until I then notice that my raid-1 is still broken, but that's another story, and to be expected...)

reuben

I was not expecting a root chipset without subordinate bus... Maybe we should store the NO_MSI flags in the device itself instead of in its subordinate bus (I would have to rework all my patches then). After all, we don't inherit bus flags anymore, and I don't see why bus flags would have been chosen initially except to help flags inheritance.
I am still convinced that checking to root chipset (bus) flags only is a good idea since the root chipset is where MSI are translated from PCI messages into DMA (we don't care about MSI support in the bridges between the chipset and the devices since they only forward PCI messages).

Brice

If that solves this issue, I guess so.

Yes, I agree with that, just be able to handle the above issue too :)

thanks,

greg k-h

Starting with -mm4 and now with -mm5 I see:

I'm not sure if The "ACPI: Invalid package argument" and "ACPI Exception" are indicative of a real problem.

Ralf Hildebrandt (i.A. des IT-Zentrums)         [email protected]
Charite - Universitätsmedizin Berlin            Tel.  +49 (0)30-450 570-155
Gemeinsame Einrichtung von FU- und HU-Berlin    Fax.  +49 (0)30-450 570-962
IT-Zentrum Standort CBF                 send no mail to [email protected]

I just got mm5 up, and it has the same problem as mm4. Raid-1 does not work. I used 2.6.16 to resync my raids, and booted into 2.6.17-mm5.

[...]
md: adding sda2 ...
md: created md0
md: bind<sda2>
md: bind<sdb1>
md: running: <sdb1><sda2>
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Vendor: USB2.0 Model: HS-CF Rev: 1.64
Type: Direct-Access ANSI SCSI revision: 00
sd 3:0:0:0: Attached scsi removable disk sdf
sd 3:0:0:0: Attached scsi generic sg5 type 0
Vendor: USB2.0 Model: HS-MS Rev: 1.64
Type: Direct-Access ANSI SCSI revision: 00
sd 3:0:0:1: Attached scsi removable disk sdg
sd 3:0:0:1: Attached scsi generic sg6 type 0
Vendor: USB2.0 Model: HS-SM Rev: 1.64
Type: Direct-Access ANSI SCSI revision: 00
sd 3:0:0:2: Attached scsi removable disk sdh
sd 3:0:0:2: Attached scsi generic sg7 type 0
Vendor: USB2.0 Model: HS-SD/MMC Rev: 1.64
Type: Direct-Access ANSI SCSI revision: 00
sd 3:0:0:3: Attached scsi removable disk sdi
sd 3:0:0:3: Attached scsi generic sg8 type 0
usb-storage: device scan complete
loadkeys[2214]: segfault at 00000000000005a0 rip 00002b22e169feea rsp 00007fffc973c478 error 4 Adding 1000424k swap on /dev/sda6. Priority:1 extents:1 across:1000424k
EXT3 FS on sdd1, internal journal
raid1: Disk failure on sda2, disabling device.
Operation continuing on 1 devices
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:0, dev:sda2
disk 1, wo:0, o:1, dev:sdb1
RAID1 conf printout:
--- wd:1 rd:2
disk 1, wo:0, o:1, dev:sdb1
raid1: Disk failure on sda5, disabling device.
Operation continuing on 1 devices
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:0, dev:sda5
disk 1, wo:0, o:1, dev:sdb5
RAID1 conf printout:
--- wd:1 rd:2
disk 1, wo:0, o:1, dev:sdb5
raid1: Disk failure on sde2, disabling device.
Operation continuing on 1 devices
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:0, dev:sde2
disk 1, wo:0, o:1, dev:sdd2
RAID1 conf printout:
--- wd:1 rd:2
disk 1, wo:0, o:1, dev:sdd2
kjournald starting. Commit interval 5 seconds
EXT3 FS on md3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda8, internal journal
EXT3-fs: mounted filesystem with writeback data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on md2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on md0, internal journal
EXT3-fs: mounted filesystem with journal data mode.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with writeback data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
PM: Writing back config space on device 0000:00:0b.0 at offset b (was 165314e4, writing 13001462)
PM: Writing back config space on device 0000:00:0b.0 at offset 3 (was 0, writing 2008)
PM: Writing back config space on device 0000:00:0b.0 at offset 2 (was 2000000, writing 2000003)
PM: Writing back config space on device 0000:00:0b.0 at offset 1 (was 2b00000, writing 2b00006) ADDRCONF(NETDEV_UP): eth0: link is not ready
[...]

As we see, the md devices are assembled, then the filesystems are mounted and swap turned on. Then all three md devices fail a partition at the same time. Somehow, I don't believe that is correct. ;-)

Nothing else was logged.

Helge Hafting

I assume this is still the broken-barriers bug. Thanks for all the help on this, guys. More is to be asked for, I'm afraid.

I've prepared a tree which is basically 2.6.17-mm5, only the git-scsi-misc and git-libata-all trees have been omitted. It's at

http://www.zip.com.au/~akpm/linux/patches/stuff/2.6.17-mm5-no-sata-scsi.bz2

(That's a diff against 2.6.17)

If that kernel works, then the next step is to test

http://www.zip.com.au/~akpm/linux/patches/stuff/2.6.17-mm5-no-scsi.bz2

which is 2.6.17-mm5 without git-scsi-misc, but with git-libata-all.

Thanks.

What does USB storage have to do with SATA?

Jeff

Please read the mailing list - several of these reports have been with sata.

Yes, thank you. As this report is against usb-storage then the bug most probably lies in git-scsi-misc.

<snip>

Works.

Works. I'm running it now and it looks to be all fine (including the workaround/fix for MSI)

In both cases I rebooted twice with each kernel to be sure it wasn't a one-off.

This then must point to git-scsi-misc being implicated, if not the source.......

Reuben

Yep, everything points to that, thanks.

Just for kicks, after testing those two trees (see previous email) I took my 2.6.17-mm5 without git-scsi-misc and then patched git-scsi-misc.patch back in, rebuilt and rebooted and noted that RAID broke again. Reverted the patch and it all worked.

So I can conclude that definitely and reproduceably that's the one.........

reuben

OK, I have a theory. I think

[SCSI] sd/scsi_lib simplify sd_rw_intr and scsi_io_completion

Failed to take into account completion of zero length commands (which is what a flush is). Could you try the whole of -mm with this patch?

Thanks,

James

index 4c4add5..3d04a9f 100644
@@ -855,7 +855,8 @@ static void scsi_release_buffers(struct 
  *		b) We can just use scsi_requeue_command() here.  This would
  *		   be used if we just wanted to retry, for example.
  */
-void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
+void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
+			unsigned int block_bytes)
 {
 	int result = cmd->result;
 	int this_count = cmd->bufflen;

@@ -920,72 +921,87 @@ void scsi_io_completion(struct scsi_cmnd
 	 * Next deal with any sectors which we were able to correctly
 	 * handle.
 	 */
-	if (good_bytes > 0) {
-		SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, "
-					      "%d bytes done.\n",
+	if (good_bytes >= 0) {
+		SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, %d bytes done.\n",
 					      req->nr_sectors, good_bytes));
 		SCSI_LOG_HLCOMPLETE(1, printk("use_sg is %d\n", cmd->use_sg));
 
 		if (clear_errors)
 			req->errors = 0;
+		/*
+		 * If multiple sectors are requested in one buffer, then
+		 * they will have been finished off by the first command.
+		 * If not, then we have a multi-buffer command.
+		 *
+		 * If block_bytes != 0, it means we had a medium error
+		 * of some sort, and that we want to mark some number of
+		 * sectors as not uptodate.  Thus we want to inhibit
+		 * requeueing right here - we will requeue down below
+		 * when we handle the bad sectors.
+		 */
 
-		/* A number of bytes were successfully read.  If there
-		 * is leftovers and there is some kind of error
-		 * (result != 0), retry the rest.
+		/*
+		 * If the command completed without error, then either
+		 * finish off the rest of the command, or start a new one.
 		 */
-		if (scsi_end_request(cmd, 1, good_bytes, !!result) == NULL)
+		if (scsi_end_request(cmd, 1, good_bytes, result == 0) == NULL)
 			return;
 	}
-
-	/* good_bytes = 0, or (inclusive) there were leftovers and
-	 * result = 0, so scsi_end_request couldn't retry.
+	/*
+	 * Now, if we were good little boys and girls, Santa left us a request
+	 * sense buffer.  We can extract information from this, so we
+	 * can choose a block to remap, etc.
 	 */
 	if (sense_valid && !sense_deferred) {
 		switch (sshdr.sense_key) {
 		case UNIT_ATTENTION:
 			if (cmd->device->removable) {
-				/* Detected disc change.  Set a bit
+				/* detected disc change.  set a bit 
 				 * and quietly refuse further access.
 				 */
 				cmd->device->changed = 1;
-				scsi_end_request(cmd, 0, this_count, 1);
+				scsi_end_request(cmd, 0,
+						this_count, 1);
 				return;
 			} else {
-				/* Must have been a power glitch, or a
-				 * bus reset.  Could not have been a
-				 * media change, so we just retry the
-				 * request and see what happens.
-				 */
+				/*
+				* Must have been a power glitch, or a
+				* bus reset.  Could not have been a
+				* media change, so we just retry the
+				* request and see what happens.  
+				*/
 				scsi_requeue_command(q, cmd);
 				return;
 			}
 			break;
 		case ILLEGAL_REQUEST:
-			/* If we had an ILLEGAL REQUEST returned, then
-			 * we may have performed an unsupported
-			 * command.  The only thing this should be
-			 * would be a ten byte read where only a six
-			 * byte read was supported.  Also, on a system
-			 * where READ CAPACITY failed, we may have
-			 * read past the end of the disk.
-			 */
+			/*
+		 	* If we had an ILLEGAL REQUEST returned, then we may
+		 	* have performed an unsupported command.  The only
+		 	* thing this should be would be a ten byte read where
+			* only a six byte read was supported.  Also, on a
+			* system where READ CAPACITY failed, we may have read
+			* past the end of the disk.
+		 	*/
 			if ((cmd->device->use_10_for_rw &&
 			    sshdr.asc == 0x20 && sshdr.ascq == 0x00) &&
 			    (cmd->cmnd[0] == READ_10 ||
 			     cmd->cmnd[0] == WRITE_10)) {
 				cmd->device->use_10_for_rw = 0;
-				/* This will cause a retry with a
-				 * 6-byte command.
+				/*
+				 * This will cause a retry with a 6-byte
+				 * command.
 				 */
 				scsi_requeue_command(q, cmd);
-				return;
+				result = 0;
 			} else {
 				scsi_end_request(cmd, 0, this_count, 1);
 				return;
 			}
 			break;
 		case NOT_READY:
-			/* If the device is in the process of becoming
+			/*
+			 * If the device is in the process of becoming
 			 * ready, or has a temporary blockage, retry.
 			 */
 			if (sshdr.asc == 0x04) {

@@ -1005,7 +1021,7 @@ void scsi_io_completion(struct scsi_cmnd
 			}
 			if (!(req->flags & REQ_QUIET)) {
 				scmd_printk(KERN_INFO, cmd,
-					    "Device not ready: ");
+					   "Device not ready: ");
 				scsi_print_sense_hdr("", &sshdr);
 			}
 			scsi_end_request(cmd, 0, this_count, 1);

@@ -1013,21 +1029,21 @@ void scsi_io_completion(struct scsi_cmnd
 		case VOLUME_OVERFLOW:
 			if (!(req->flags & REQ_QUIET)) {
 				scmd_printk(KERN_INFO, cmd,
-					    "Volume overflow, CDB: ");
+					   "Volume overflow, CDB: ");
 				__scsi_print_command(cmd->data_cmnd);
 				scsi_print_sense("", cmd);
 			}
-			/* See SSC3rXX or current. */
-			scsi_end_request(cmd, 0, this_count, 1);
+			scsi_end_request(cmd, 0, block_bytes, 1);
 			return;
 		default:
 			break;
 		}
-	}
+	}			/* driver byte != 0 */
 	if (host_byte(result) == DID_RESET) {
-		/* Third party bus reset or reset for error recovery
-		 * reasons.  Just retry the request and see what
-		 * happens.
+		/*
+		 * Third party bus reset or reset for error
+		 * recovery reasons.  Just retry the request
+		 * and see what happens.  
 		 */
 		scsi_requeue_command(q, cmd);
 		return;

@@ -1035,13 +1051,21 @@ void scsi_io_completion(struct scsi_cmnd
 	if (result) {
 		if (!(req->flags & REQ_QUIET)) {
 			scmd_printk(KERN_INFO, cmd,
-				    "SCSI error: return code = 0x%08x\n",
-				    result);
+				   "SCSI error: return code = 0x%x\n", result);
+
 			if (driver_byte(result) & DRIVER_SENSE)
 				scsi_print_sense("", cmd);
 		}
+		/*
+		 * Mark a single buffer as not uptodate.  Queue the remainder.
+		 * We sometimes get this cruft in the event that a medium error
+		 * isn't properly reported.
+		 */
+		block_bytes = req->hard_cur_sectors << 9;
+		if (!block_bytes)
+			block_bytes = req->data_len;
+		scsi_end_request(cmd, 0, block_bytes, 1);
 	}
-	scsi_end_request(cmd, 0, this_count, !result);
 }
 EXPORT_SYMBOL(scsi_io_completion);
 

@@ -1145,7 +1169,7 @@ static void scsi_blk_pc_done(struct scsi
 	 * successfully. Since this is a REQ_BLOCK_PC command the
 	 * caller should check the request's errors value
 	 */
-	scsi_io_completion(cmd, cmd->bufflen);
+	scsi_io_completion(cmd, cmd->bufflen, 0);
 }
 
 static void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)

index fd94408..ebf6579 100644
@@ -292,7 +292,7 @@ #endif
 	 * how many actual sectors finished, and how many sectors we need
 	 * to say have failed.
 	 */
-	scsi_io_completion(SCpnt, good_bytes);
+	scsi_io_completion(SCpnt, good_bytes, block_sectors << 9);
 }
 
 static int sr_init_command(struct scsi_cmnd * SCpnt)

index 371f70d..e46cd40 100644
@@ -143,7 +143,7 @@ #define SCSI_STATE_MLQUEUE         0x100
 
 extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t);
 extern void scsi_put_command(struct scsi_cmnd *);
-extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
+extern void scsi_io_completion(struct scsi_cmnd *, unsigned int, unsigned int);
 extern void scsi_finish_command(struct scsi_cmnd *cmd);
 extern void scsi_req_abort_cmd(struct scsi_cmnd *cmd);
 

[patch snipped]

With the patch applied to 2.6.17-mm5 my RAID-1 is up and running on both SATA drives with no problems.

Thanks,
Grant

That's great, thanks. Now we know what the problem patch is, I'd like to try an 11th our correction of the logic fault in the original. Could you try this patch against original -mm (by reversing the previous patch). I think it should correct the problem?

Thanks,

James

index bf5191f..08af9aa 100644
@@ -920,22 +920,20 @@ void scsi_io_completion(struct scsi_cmnd
 	 * Next deal with any sectors which we were able to correctly
 	 * handle.
 	 */
-	if (good_bytes > 0) {
-		SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, "
-					      "%d bytes done.\n",
-					      req->nr_sectors, good_bytes));
-		SCSI_LOG_HLCOMPLETE(1, printk("use_sg is %d\n", cmd->use_sg));
-
-		if (clear_errors)
-			req->errors = 0;
-
-		/* A number of bytes were successfully read.  If there
-		 * is leftovers and there is some kind of error
-		 * (result != 0), retry the rest.
-		 */
-		if (scsi_end_request(cmd, 1, good_bytes, !!result) == NULL)
-			return;
-	}
+	SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, "
+				      "%d bytes done.\n",
+				      req->nr_sectors, good_bytes));
+	SCSI_LOG_HLCOMPLETE(1, printk("use_sg is %d\n", cmd->use_sg));
+
+	if (clear_errors)
+		req->errors = 0;
+
+	/* A number of bytes were successfully read.  If there
+	 * are leftovers and there is some kind of error
+	 * (result != 0), retry the rest.
+	 */
+	if (scsi_end_request(cmd, 1, good_bytes, result == 0) == NULL)
+		return;
 
 	/* good_bytes = 0, or (inclusive) there were leftovers and
 	 * result = 0, so scsi_end_request couldn't retry.

[snip]

With the first patch reversed and the second applied to -mm5 my RAID-1 array is still working correctly on both disks.

Thanks again,
Grant

The patch makes 2.6.17-mm5 md work on SATA and SCSI for me too.

Helge Hafting

+1. Fixes everything here up too.

So with two patches applied (this one and an unrelated MSI fix) I'm all up and running perfectly on -mm5.

Thanks,
Reuben

Hello, all,

I've just tested both libata-dev#upstream and 2.6.17-mm5 and both work fine on my machine w/ sata_sil24. It doesn't seem to be a libata problem ATM. libata should have complained loud & clear if it had indicated error to upper layer thus causing above degraded raid array event. Can you please post full boot dmesg preferably w/ timestamps?

Thanks.

tejun

Thanks. Please copy the mailing lists on these reports - I'm not an MD, SCSI or SATA developer, and this is in their area.

Which device drivers are being used for these disks?

The barrier code is in there again.

mddev->pers is NULL in md_error(), so the test of !mddev->pers->error_handler oopsed. Perhaps this is a real MD bug which is now being exposed by the new barrier-handling problem.

This should get you further, but...

From: Andrew Morton <[email protected]>

---

 drivers/md/md.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN drivers/md/md.c~md-oops-workaround drivers/md/md.c
@@ -4586,6 +4586,8 @@ void md_error(mddev_t *mddev, mdk_rdev_t
 		__builtin_return_address(0),__builtin_return_address(1),
 		__builtin_return_address(2),__builtin_return_address(3));
 */
+	if (!mddev->pers)
+		return;
 	if (!mddev->pers->error_handler)
 		return;
 	mddev->pers->error_handler(mddev,rdev);

_

Actually, is there any more of the trace, like what was going on just before the oops?

It looks very like a lifetime issue (i.e. md thinks the array is dead and has torn it down, but there's still an outstanding command). It would be nice to know what the outstanding command might have been.

James

md writes the superblock after tearing down the array, which is admittedly a bit careless.

The problem seems to be simply that on some hardware at least, BIO_RW_BARRIER writes result in an EIO. Don't know why yet.

NeilBrown

Could be that <whatever device> is choking on FLUSH CACHE (ATA) or SYNCHRONIZE CACHE (SCSI).

That's one possible reason why EIO may result from a barrier...

Jeff

There is no barrier implementation on SCSI (basically you can't maintain barriers in the face of TCQ, so only depth one devices can do it and hence all the scsi drivers turn it off), so it must be a FLUSH CACHE.

This one looks like it went down via prepare_flush rather than issue_flush, so the normal error printing case that issue flush has is skipped. This patch should tell us what the error was on the command.

James

index 3d04a9f..3e3e3b7 100644
@@ -1162,7 +1162,20 @@ static int scsi_issue_flush_fn(request_q
 
 static void scsi_blk_pc_done(struct scsi_cmnd *cmd)
 {
+	int res = cmd->result;
+	struct scsi_sense_hdr sshdr;
+
 	BUG_ON(!blk_pc_request(cmd->request));
+	if (!res) {
+		printk(KERN_ERR "REQ_BLOCK_PC FAILED for ");
+		__scsi_print_command(cmd->cmnd);
+		printk(KERN_ERR "FAILED\n  status = %x, message = %02x, "
+		       "host = %d, driver = %02x\n  ",
+		       status_byte(res), msg_byte(res),
+		       host_byte(res), driver_byte(res));
+		if (scsi_command_normalize_sense(cmd, &sshdr))
+			scsi_print_sense_hdr("sd", &sshdr);
+	}
 	/*
 	 * This will complete the whole command with uptodate=1 so
 	 * as far as the block layer is concerned the command completed

James

Yes, this is a real MD bug which would hit whenever writing a superblock fails during array-shutdown. I guess that has never happened before! The work around you propose is probably as good as any, but I'll think through it some more and see.

It seems that super block writes are always failing in some configurations at the moment!

I wonder what we *should* do when writing to the superblock on the last device of a raid1 faills... maybe switch the array to read-only? I'll have a think about that too.

But we need to find out why barrier-writes are returning EIO. Hopefully Reuben's testing will shed some light.

NeilBrown

Also, would be nice to re-test without preempt.

Disabling preempt _continues_ to fix (bandaid?) problems...

Jeff

<...>

feel curious, how did you find out it is because "mddev->pers is NULL"?

thanks!

Seems that we have some kind of schedular balance panic, I want to say back as this seems very familiar. Seems to be affecting the multi-node NUMA-Q systems here. The single node ones appear unaffected.

Nothing jumps out of the patch list. Any suggestions as to what to rip out :)

-apw

divide error: 0000 [#1]
8K_STACKS SMP
last sysfs file:

Modules linked in:
CPU:    3
EIP:    0060:[<c0112b6e>]    Not tainted VLI
EFLAGS: 00010046   (2.6.17-mm5-autokern1 #1)

EIP is at find_busiest_group+0x1a3/0x47c
eax: 00000000 ebx: 00000007 ecx: 00000000 edx: 00000000
esi: 00000000 edi: e7677264 ebp: e74a3ec8 esp: e74a3e58
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, ti=e74a2000 task=e7485030 task.ti=e74a2000)

Stack: e7677264 00000010 c0119020 00000000 00000000 00000000 00000000
00000000
       ffffffff 00000000 00000000 00000001 00000001 00000001 00000080
00000000
       00000000 00000200 00000020 00000080 00000000 00000000 e7677260
c13dc960
Call Trace:
 [<c0119020>] vprintk+0x5f/0x213
 [<c0112efb>] load_balance+0x54/0x1d6
 [<c011332d>] rebalance_tick+0xc5/0xe3
 [<c01137a3>] scheduler_tick+0x2cb/0x2d3
 [<c01215b4>] update_process_times+0x51/0x5d
 [<c010c224>] smp_apic_timer_interrupt+0x5a/0x61
 [<c0102d5b>] apic_timer_interrupt+0x1f/0x24
 [<c01006c0>] default_idle+0x0/0x59
 [<c01006f1>] default_idle+0x31/0x59
 [<c0100791>] cpu_idle+0x64/0x79
Code: 00 5b 83 f8 1f 89 c6 5f 0f 8e 63 ff ff ff 8b 45 e0 8b 55 e8 01 45

dc 8b 4a 08 89 c2 01 4d d4 c1 e2 07 89 d0 31 d2 89 ce c1 ee 07 <f7> f1 83 7d 9c 00 89 45 e0 74 17 89 45 d8 8b 55 e8 8b 4d a4 8b
EIP: [<c0112b6e>] find_busiest_group+0x1a3/0x47c SS:ESP 0068:e74a3e58
<0>Kernel panic - not syncing: Fatal exception in interrupt

Well there are only a handful of divides in find_busiest_group(). Wanna have a poke around in gdb and work out which one you're hitting?

Sure I'll see what information I can get on this one.

-apw

Easy way:

Set CONFIG_DEBUG_INFO, do:

make kernel/sched.o
gdb kernel/sched.o
(gdb) p find_busiest_group
$1 = {struct sched_group *(struct sched_domain *, int, long unsigned int *,

    enum idle_type, int *)} 0xff0 <find_busiest_group>

(gdb) l *(0xff0 + 0x1a3)

The following patch is needed to fix UML compilation in -mm5 given that alternatives_smp_module_add and alternatives_smp_module_del are null inline functions if !CONFIG_SMP.

Index: linux-2.6.17-mm5/arch/um/kernel/um_arch.c
===================================================================
@@ -495,6 +495,7 @@
 {
 }
 
+#ifdef CONFIG_SMP
 void alternatives_smp_module_add(struct module *mod, char *name,
 				 void *locks, void *locks_end,
 				 void *text,  void *text_end)

@@ -504,3 +505,4 @@
 void alternatives_smp_module_del(struct module *mod)
 {
 }
+#endif

LD .tmp_vmlinux1
drivers/s390/built-in.o(.text+0x587f2): In function `zfcp_ccw_set_online':
: undefined reference to statistic_create' drivers/s390/built-in.o(.text+0x58838): In function zfcp_ccw_set_online':
: undefined reference to statistic_remove' drivers/s390/built-in.o(.text+0x58954): In function zfcp_ccw_set_offline':
: undefined reference to statistic_remove' drivers/s390/built-in.o(.text+0x603e0): In function zfcp_erp_thread':
: undefined reference to statistic_add' drivers/s390/built-in.o(.text+0x60676): In function zfcp_erp_thread':
: undefined reference to statistic_add' drivers/s390/built-in.o(.text+0x62000): In function zfcp_qdio_response_handler':
: undefined reference to statistic_add' drivers/s390/built-in.o(.text+0x622b2): In function zfcp_qdio_sbals_from_sg':
: undefined reference to statistic_add' drivers/s390/built-in.o(.text+0x6258a): In function zfcp_qdio_sbals_from_scsicmnd':
: undefined reference to statistic_add' drivers/s390/built-in.o(.text+0x6280c): more undefined references to statistic_add' follow
make: *** [.tmp_vmlinux1] Error 1

Guess there is a couple of do {} while(0) defines missing in include/linux/statistic.h for the !CONFIG_STATISTICS case. Martin?