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PROBLEM: isofs crash on 2.4.0-test11-pre7 [1.] MAINTAINERS: ISO FILESYSTEM

DISCUSSION Tony Spinillo 3 participants 3 messages Nov 19, 2000 – Nov 22, 2000

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Tony Spinillo

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#0 lore raw

Same problem as Vincent - OOPs when "ls" a mounted cdrom. It did work once with a CD-R. My report symptoms are nearly identical to previous post with same subject heading with a few differences:

[4.] Kernel version (from /proc/version):
Linux version 2.4.0-test11 (root@svcr-adsl) (gcc driver version 2.95.3 19991030 (prerelease) executing gcc version egcs-2.91.66) #4 Sun Nov 19 02:00:43 EST 2000

7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
./ver_linux
-- Versions installed: (if some fields are empty or look
-- unusual then possibly you have very old versions)
Linux svcr-adsl-205-238-237-43 2.4.0-test11 #4 Sun Nov 19 02:00:43 EST 2000 i686 unknown

Kernel modules         2.3.17
Gnu C                  2.95.3
Gnu Make               3.79.1
Binutils               2.10.0.24
Linux C Library        2.1.3
Dynamic linker         ldd (GNU libc) 2.1.3
Procps                 2.0.7
Mount                  2.10o
Net-tools              1.57
Console-tools          0.2.3
Sh-utils               2.0
Modules Loaded         NVdriver vmnet vmmon 3c59x tulip

[7.2.] Processor information (from /proc/cpuinfo):
cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 3
cpu MHz : 871.000033
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
features : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 1736.70

7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem

cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
0376-0376 : ide1
03c0-03df : vga+
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
a000-a01f : Intel Corporation 82820 820 (Camino 2) Chipset USB (Hub B) a400-a41f : Intel Corporation 82820 820 (Camino 2) Chipset USB (Hub A) a800-a80f : Intel Corporation 82820 820 (Camino 2) Chipset IDE U100 b000-dfff : PCI Bus #02
b400-b43f : 3Com Corporation 3c905 100BaseTX [Boomerang]

    b400-b43f : eth1
  b800-b83f : Ensoniq ES1371 [AudioPCI-97]
    b800-b83f : es1371
  d000-d03f : Advanced System Products, Inc ABP940-UW
    d000-d03f : advansys
  d400-d4ff : Lite-On Communications Inc LNE100TX
    d400-d4ff : eth0

d800-d8ff : PCI device 10cd:2500 (Advanced System Products, Inc)
e400-e403 : acpi
e404-e405 : acpi
e408-e40b : acpi
e428-e42b : acpi
e800-e80f : Intel Corporation 82820 820 (Camino 2) Chipset SMBus

cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM
000cc000-000cffff : Extension ROM
000d0000-000d3fff : Extension ROM
000f0000-000fffff : System ROM
00100000-1ffeafff : System RAM
00100000-002a7147 : Kernel code
002a7148-002c35e3 : Kernel data
1ffeb000-1ffeefff : ACPI Tables
1ffef000-1fffefff : reserved
1ffff000-1fffffff : ACPI Non-volatile Storage ec800000-edffffff : PCI Bus #02
ec800000-ec8000ff : Advanced System Products, Inc ABP940-UW ed000000-ed0000ff : Lite-On Communications Inc LNE100TX

    ed000000-ed0000ff : eth0

ed800000-ed8000ff : PCI device 10cd:2500 (Advanced System Products,
Inc)
ee000000-efdfffff : PCI Bus #01
ee000000-eeffffff : nVidia Corporation NV15 Bladerunner (Geforce2 GTS)
efe00000-efefffff : PCI Bus #02
eff00000-f7ffffff : PCI Bus #01
f0000000-f7ffffff : nVidia Corporation NV15 Bladerunner (Geforce2 GTS)
f8000000-fbffffff : PCI device 8086:1130 (Intel Corporation) ffff0000-ffffffff : reserved

[7.6.] SCSI information (from /proc/scsi/scsi)
cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: IBM Model: DNES-309170W Rev: S80K
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 03 Lun: 00
Vendor: PLEXTOR Model: CD-ROM PX-40TW Rev: 1.03
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 06 Lun: 00
Vendor: IOMEGA Model: ZIP 250 Rev: H.41
Type: Direct-Access ANSI SCSI revision: 02

[X.] Other notes, patches, fixes, workarounds:
When trying to ls on cdrom mounted on scsi1 (Plextor CD-ROM), mount goes okay. "ls" /mnt/cdrom results in
"oops" - same as a previous post. The ls did work
once with a cdr disc
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#1 lore raw
Quoted 4 lines · Tony Spinillo

Same problem as Vincent - OOPs when "ls" a mounted cdrom. It did work once with a CD-R. My report symptoms are nearly identical to previous post with same subject heading with a few differences:

there is a buglet in fs/isofs/namei.c, corrected in test11-final.

--alessandro <[email protected]> <[email protected]>

Linux:  kernel 2.2.18p21/2.4.0-t11p7 glibc-2.1.94 gcc-2.95.2 binutils-2.10.0.33
Oracle: Oracle8i 8.1.6.1.0 Enterprise Edition for Linux
motto:  Tell the truth, there's less to remember.

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#2 lore raw
In reply to Tony Spinillo
Quoted 1 line · Alessandro Suardi

there is a buglet in fs/isofs/namei.c, corrected in test11-final.

Hmmm.

/var/log/warn says

Nov 21 23:07:06 elfie kernel: _isofs_bmap: block >= EOF (1633681408, 4096)
Nov 21 23:07:08 elfie kernel: _isofs_bmap: block >= EOF (559939584, 4096)
Nov 21 23:07:09 elfie kernel: _isofs_bmap: block < 0
Nov 21 23:07:33 elfie last message repeated 2 times
Nov 21 23:09:39 elfie kernel: _isofs_bmap: block < 0
Nov 21 23:11:25 elfie kernel: Freeing unused kernel memory: 176k freed
Nov 21 23:11:55 elfie kernel: _isofs_bmap: block < 0
Nov 21 23:11:59 elfie kernel: _isofs_bmap: block < 0
Nov 21 23:12:33 elfie kernel: _isofs_bmap: block >= EOF (1633681408, 4096)
Nov 21 23:12:38 elfie kernel: _isofs_bmap: block >= EOF (1633681408, 4096)
Nov 21 23:13:03 elfie kernel: _isofs_bmap: block >= EOF (559939584, 4096)

after I mounted the CD-ROM. Moving to the directory the CD-ROM was mounted on, it is empty !

Going back to 2.4.0-test10-final cures the problem.

My system:

hd@elfie:~ > ver_linux
-- Versions installed: (if some fields are empty or look
-- unusual then possibly you have very old versions)
Linux elfie 2.4.0-test10-final #1 Tue Nov 21 23:18:34 CET 2000 i586 unknown

Kernel modules         2.3.19
Gnu C                  2.95.2
Gnu Make               3.79
Binutils               2.10.0.33
Linux C Library        > libc.2.2
Dynamic linker         ldd (GNU libc) 2.2
Linux C++ Library      2.9.0
Procps                 2.0.2
Mount                  2.10o
Net-tools              1.46
Kbd                    0.96
Sh-utils               1.12
Modules Loaded         serial
Signature · 5 lines
# Heinz Diehl, 68259 Mannheim, Germany
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