mmotm 2022-03-30-13-01 uploaded

The mm-of-the-moment snapshot 2022-03-30-13-01 has been uploaded to

https://www.ozlabs.org/~akpm/mmotm/

mmotm-readme.txt says

README for mm-of-the-moment:

https://www.ozlabs.org/~akpm/mmotm/

This is a snapshot of my -mm patch queue. Uploaded at random hopefully more than once a week.

You will need quilt to apply these patches to the latest Linus release (5.x or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
https://ozlabs.org/~akpm/mmotm/series

The file broken-out.tar.gz contains two datestamp files: .DATE and .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, followed by the base kernel version against which this patch series is to be applied.

This tree is partially included in linux-next. To see which patches are included in linux-next, consult the `series' file. Only the patches within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in linux-next.

A full copy of the full kernel tree with the linux-next and mmotm patches already applied is available through git within an hour of the mmotm release. Individual mmotm releases are tagged. The master branch always points to the latest release, so it's constantly rebasing.

https://github.com/hnaz/linux-mm

The directory https://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second) contains daily snapshots of the -mm tree. It is updated more frequently than mmotm, and is untested.

A git copy of this tree is also available at

https://github.com/hnaz/linux-mm

This mmotm tree contains the following patches against 5.17:
(patches marked "*" will be included in linux-next)

origin.patch
* mm-secretmem-fix-panic-when-growing-a-memfd_secret.patch
* mailmap-update-vasily-averins-email-address.patch
* memcg-sync-flush-only-if-periodic-flush-is-delayed.patch
* revert-mm-madvise-skip-unmapped-vma-holes-passed-to-process_madvise.patch
* ocfs2-fix-crash-when-mount-with-quota-enabled.patch
* nilfs2-fix-lockdep-warnings-in-page-operations-for-btree-nodes.patch
* nilfs2-fix-lockdep-warnings-during-disk-space-reclamation.patch
* nilfs2-get-rid-of-nilfs_mapping_init.patch
* mm-munlock-remove-fields-to-fix-htmldocs-warnings.patch
* mm-munlock-add-lru_add_drain-to-fix-memcg_stat_test.patch
* mm-kfence-fix-objcgs-vector-allocation.patch
* mailmap-update-kirills-email.patch
* mmhwpoison-unmap-poisoned-page-before-invalidation.patch
* mm-kasan-fix-__gfp_bits_shift-definition-breaking-lockdep.patch
* tools-vm-page_owner_sortc-remove-c-option.patch
* doc-vm-page_ownerrst-remove-content-related-to-c-option.patch
* mm-kmemleak-reset-tag-when-compare-object-pointer.patch
* userfaultfd-mark-uffd_wp-regardless-of-vm_write-flag.patch
* mm-fix-unexpected-zeroed-page-mapping-with-zram-swap.patch
* mm-compaction-fix-compiler-warning-when-config_compaction=n.patch
* hugetlb-do-not-demote-poisoned-hugetlb-pages.patch
* proc-kpageflags-prevent-an-integer-overflow-in-stable_page_flags.patch
* proc-kpageflags-do-not-use-uninitialized-struct-pages.patch
* procfs-prevent-unpriveleged-processes-accessing-fdinfo-dir.patch
mm.patch
* stacktrace-add-interface-based-on-shadow-call-stack.patch
* arm64-scs-save-scs_sp-values-per-cpu-when-switching-stacks.patch
* arm64-implement-stack_trace_save_shadow.patch
* kasan-use-stack_trace_save_shadow.patch
* mm-shmem-make-shmem_init-return-void.patch
* mm-shmem-make-shmem_init-return-void-fix.patch
* mm-memcg-remove-unneeded-nr_scanned.patch
* mm-memcg-mz-already-removed-from-rb_tree-if-not-null.patch
* mm-use-mmap_assert_write_locked-instead-of-open-coding-it.patch
* mm-mmu_gather-limit-free-batch-count-and-add-schedule-point-in-tlb_batch_pages_flush.patch
* mm-mremap-use-helper-mlock_future_check.patch
* documentation-sysctl-document-page_lock_unfairness.patch
* mm-page_alloc-simplify-update-of-pgdat-in-wake_all_kswapds.patch
* mm-page_alloc-add-same-penalty-is-enough-to-get-round-robin-order.patch
* mm-discard-__gfp_atomic.patch
* mm-remove-unnecessary-void-conversions.patch
* mm-munlock-protect-the-per-cpu-pagevec-by-a-local_lock_t.patch
* mm-khugepaged-sched-to-numa-node-when-collapse-huge-page.patch
* mm-vmscan-reclaim-only-affects-managed_zones.patch
* mm-vmscan-make-sure-wakeup_kswapd-with-managed-zone.patch
* mm-vmscan-sc-reclaim_idx-must-be-a-valid-zone-index.patch
* mm-z3fold-declare-z3fold_mount-with-__init.patch
* mm-z3fold-remove-obsolete-comment-in-z3fold_alloc.patch
* mm-z3fold-minor-clean-up-for-z3fold_free.patch
* mm-z3fold-remove-unneeded-page_mapcount_reset-and-clearpageprivate.patch
* mm-z3fold-remove-confusing-local-variable-l-reassignment.patch
* mm-z3fold-move-decrement-of-pool-pages_nr-into-__release_z3fold_page.patch
* mm-z3fold-remove-redundant-list_del_init-of-zhdr-buddy-in-z3fold_free.patch
* mm-z3fold-remove-unneeded-page_headless-check-in-free_handle.patch
* mm-compaction-use-helper-isolation_suitable.patch
* mm-add-selftests-for-migration-entries.patch
* mm-migration-remove-unneeded-local-variable-mapping_locked.patch
* mm-migration-remove-unneeded-out-label.patch
* mm-migration-remove-unneeded-local-variable-page_lru.patch
* mm-migration-fix-the-confusing-pagetranshuge-check.patch
* mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch
* mm-migration-use-helper-macro-min-in-do_pages_stat.patch
* mm-migration-avoid-unneeded-nodemask_t-initialization.patch
* mm-migration-remove-some-duplicated-codes-in-migrate_pages.patch
* mm-migration-fix-potential-page-refcounts-leak-in-migrate_pages.patch
* mm-migration-fix-potential-invalid-node-access-for-reclaim-based-migration.patch
* mm-migration-fix-possible-do_pages_stat_array-racing-with-memory-offline.patch
* ksm-count-ksm-merging-pages-for-each-process.patch
* ksm-count-ksm-merging-pages-for-each-process-fix.patch
* mm-untangle-config-dependencies-for-demote-on-reclaim.patch
* mm-page_alloc-do-not-calculate-nodes-total-pages-and-memmap-pages-when-empty.patch
* mm-memory_hotplug-reset-nodes-state-when-empty-during-offline.patch
* mm-memory_hotplug-refactor-hotadd_init_pgdat-and-try_online_node.patch
* mm-memory_hotplug-refactor-hotadd_init_pgdat-and-try_online_node-checkpatch-fixes.patch
* mm-rmap-convert-from-atomic_t-to-refcount_t-on-anon_vma-refcount.patch
* mm-rmap-fix-cache-flush-on-thp-pages.patch
* dax-fix-cache-flush-on-pmd-mapped-pages.patch
* mm-rmap-introduce-pfn_mkclean_range-to-cleans-ptes.patch
* mm-pvmw-add-support-for-walking-devmap-pages.patch
* dax-fix-missing-writeprotect-the-pte-entry.patch
* mm-simplify-follow_invalidate_pte.patch
* zram-add-a-huge_idle-writeback-mode.patch
* damon-vaddr-test-tweak-code-to-make-the-logic-clearer.patch
* info-task-hung-in-generic_file_write_iter.patch
* info-task-hung-in-generic_file_write-fix.patch
* kernel-hung_taskc-monitor-killed-tasks.patch
* ia64-fix-typos-in-comments.patch
* ia64-ptrace-fix-typos-in-comments.patch
* ia64-replace-comments-with-c99-initializers.patch
* ocfs2-replace-usage-of-found-with-dedicated-list-iterator-variable.patch
* ocfs2-remove-usage-of-list-iterator-variable-after-the-loop-body.patch
* ocfs2-reflink-deadlock-when-clone-file-to-the-same-directory-simultaneously.patch
* ocfs2-clear-links-count-in-ocfs2_mknod-if-an-error-occurs.patch
* ocfs2-fix-ocfs2-corrupt-when-iputting-an-inode.patch
* proc-fix-dentry-inode-overinstantiating-under-proc-pid-net.patch
* proc-fix-dentry-inode-overinstantiating-under-proc-pid-net-checkpatch-fixes.patch
* proc-sysctl-make-protected_-world-readable.patch
* kernel-pid_namespace-use-null-instead-of-using-plain-integer-as-pointer.patch
* get_maintainer-honor-mailmap-for-in-file-emails.patch
* lib-test_meminit-optimize-do_kmem_cache_rcu_persistent-test.patch
* lib-kconfigdebug-remove-more-config__value-indirections.patch
* lib-test_stringc-add-strspn-and-strcspn-tests.patch
* lib-stringc-simplify-strspn.patch
* lz4-fix-lz4_decompress_safe_partial-read-out-of-bound.patch
* pipe-make-poll_usage-boolean-and-annotate-its-access.patch
* list-fix-a-data-race-around-ep-rdllist.patch
* init-mainc-silence-some-wunused-parameter-warnings.patch
* fatfs-remove-redundant-judgment.patch
* rapidio-remove-unnecessary-use-of-list-iterator.patch
* ipc-mqueue-use-get_tree_nodev-in-mqueue_get_tree.patch
linux-next.patch
linux-next-rejects.patch
* mm-oom_killc-fix-vm_oom_kill_table-ifdeffery.patch
* selftests-vm-add-test-for-soft-dirty-pte-bit.patch
* kselftest-vm-override-targets-from-arguments.patch make-sure-nobodys-leaking-resources.patch releasing-resources-with-children.patch mutex-subsystem-synchro-test-module.patch mutex-subsystem-synchro-test-module-fix.patch kernel-forkc-export-kernel_thread-to-modules.patch workaround-for-a-pci-restoring-bug.patch

Luis-

# CONFIG_SYSCTL is not set
# CONFIG_PROC_SYSCTL is not set

In file included from ../kernel/sched/build_policy.c:43:0:
../kernel/sched/rt.c:3017:12: warning: ‘sched_rr_handler’ defined but not used [-Wunused-function]
static int sched_rr_handler(struct ctl_table *table, int write, void *buffer,

            ^~~~~~~~~~~~~~~~
../kernel/sched/rt.c:2978:12: warning: ‘sched_rt_handler’ defined but not used [-Wunused-function]
 static int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
            ^~~~~~~~~~~~~~~~

This was also reported on Feb.22/2022:
https://lore.kernel.org/all/[email protected]/

and by Baisong Zhong <[email protected]>
on Mar.17/2022.

~Randy

Yes, I'm on it, thanks!

Luis

on x86_64:

ld: ld: DWARF error: could not find abbrev number 74 or
ld: ld: DWARF error: could not find abbrev number 77

gcc is:
gcc (SUSE Linux) 7.5.0

Full randconfig file is attached.

~Randy

on x86_64:
when CONFIG_SUSPEND is not set:

drivers/platform/x86/amd-pmc.o: in function `amd_pmc_remove':
amd-pmc.c:(.text+0x11d): undefined reference to `acpi_unregister_lps0_dev'
ld: drivers/platform/x86/amd-pmc.o: in function `amd_pmc_probe':
amd-pmc.c:(.text+0x20be): undefined reference to `acpi_register_lps0_dev'

~Randy

[AMD Official Use Only]

AFAICT you're missing 20e1d6402a71dba7ad2b81f332a3c14c7d3b939b.

I cloned https://github.com/hnaz/linux-mm
As of commit 074b4ea9811e2c47ae1ecada177629c19fa56d59 And don't see the commit. This is in mainline though.

$ git show 20e1d6402a71dba7ad2b81f332a3c14c7d3b939b
fatal: bad object 20e1d6402a71dba7ad2b81f332a3c14c7d3b939b

Hi Mario,

That is unlikely since the whole series got merged through the pdx86/for-next branch, so either some other tree has the whole series or none of it.

Also note that Randy wrote:

"when CONFIG_SUSPEND is not set"

The problem is that all of drivers/acpi/x86/s2idle.c is wrapped by #ifdef CONFIG_SUSPEND ... #endif

Since AFAIK the whole amd-pmc driver's whole purpose is to allow s2idle to work properly. I think this can be fixed by simply doing:

@@ -198,7 +198,7 @@ config ACER_WMI
 
 config AMD_PMC
 	tristate "AMD SoC PMC driver"
-	depends on ACPI && PCI && RTC_CLASS
+	depends on ACPI && SUSPEND && PCI && RTC_CLASS
 	help
 	  The driver provides support for AMD Power Management Controller
 	  primarily responsible for S2Idle transactions that are driven from

If you agree, please submit a patch with this change and I'll queue it up in my fixes branch.

Regards,

Hans

[Public]

Ah thanks.

That's the primary reason, but you can technically also fetch an STB and read idle mask from debugfs even without debugfs set. I will weigh out both options and send something to fix this then.