Hi all,
This happened on 2.6.20-rc6-mm3, so I upgraded to 2.6.20-git14, and
same thing happened. Doing a forced fsck on the (corrupted by
double-mounting I think) filesystem fixed it, but I took a copy before
doing that.
Do we care about ext3 barfing on corrupted filesystems?
[ 1329.782923] EXT3 FS on loop0, internal journal
[ 1329.782926] EXT3-fs: recovery complete.
[ 1329.783186] EXT3-fs: mounted filesystem with ordered data mode.
[ 1329.921992] EXT3-fs warning (device loop0): ext3_unlink: Deleting nonexistent file (842294), 0
[ 1329.922516] EXT3-fs warning (device loop0): ext3_unlink: Deleting nonexistent file (842295), 0
[ 1329.922524] list_add corruption. next->prev should be prev (f6705c9c), but was f21a886c. (next=f21a886c).
[ 1329.922546] ------------[ cut here ]------------
[ 1329.922548] kernel BUG at lib/list_debug.c:27!
[ 1329.922550] invalid opcode: 0000 [#1]
[ 1329.922551] Modules linked in: loop binfmt_misc i915 ipv6 drm cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative video thermal processor fan button battery asus_acpi backlight ac tsdev keyspan usbserial usbhid af_packet evdev psmouse snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer ehci_hcd rtc uhci_hcd iTCO_wdt iTCO_vendor_support snd soundcore snd_page_alloc e1000 intel_agp agpgart usbcore
[ 1329.922574] CPU: 0
[ 1329.922575] EIP: 0060:[<c01f0ba0>] Not tainted VLI
[ 1329.922576] EFLAGS: 00010286 (2.6.20-git14 #25)
[ 1329.922581] EIP is at __list_add+0x40/0x60
[ 1329.922583] eax: 00000070 ebx: f6705c9c ecx: c011d791 edx: f6352ac0
[ 1329.922585] esi: f21a88cc edi: f2056a54 ebp: f2169eac esp: f2169e94
[ 1329.922587] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
[ 1329.922589] Process rm (pid: 3494, ti=f2168000 task=f6352ac0 task.ti=f2168000)
[ 1329.922591] Stack: c03a437c f6705c9c f21a886c f21a886c 00000000 f21a88cc f2169eb4 c01f0bca
[ 1329.922597] f2169ef4 c01ba4fc f2169ed4 f219a5c8 f21a8b54 f21a8c58 f69683c4 f69683c4
[ 1329.922602] f21a87c8 f21a886c f219aba0 00000300 000000ce 00000000 f21a88cc f21a8c58
[ 1329.922607] Call Trace:
[ 1329.922609] [<c010516a>] show_trace_log_lvl+0x1a/0x30
[ 1329.922612] [<c0105231>] show_stack_log_lvl+0xb1/0xe0
[ 1329.922615] [<c0105430>] show_registers+0x1d0/0x2d0
[ 1329.922618] [<c0105629>] die+0xf9/0x220
[ 1329.922621] [<c01057d2>] do_trap+0x82/0xb0
[ 1329.922623] [<c0106117>] do_invalid_op+0x97/0xb0
[ 1329.922626] [<c031bb5c>] error_code+0x74/0x7c
[ 1329.922630] [<c01f0bca>] list_add+0xa/0x10
[ 1329.922632] [<c01ba4fc>] ext3_orphan_add+0x17c/0x210
[ 1329.922636] [<c01bb5d7>] ext3_unlink+0x127/0x1b0
[ 1329.922638] [<c0177938>] vfs_unlink+0x88/0xe0
[ 1329.922642] [<c0179688>] do_unlinkat+0xb8/0x140
[ 1329.922645] [<c0179720>] sys_unlink+0x10/0x20
[ 1329.922647] [<c01040f0>] sysenter_past_esp+0x69/0xb1
[ 1329.922650] =======================
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