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Bug#453393: marked as done (linux-image-2.6.18-5-686: kernel bug at lookup.c with unionfs (and squashfs))

Your message dated Wed, 2 Jul 2008 17:09:11 +0200
with message-id <20080702150911.GM25863@stro.at>
and subject line Re: linux-image-2.6.18-5-686: kernel bug at lookup.c with unionfs (and squashfs)
has caused the Debian Bug report #453393,
regarding linux-image-2.6.18-5-686: kernel bug at lookup.c with unionfs (and squashfs)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
453393: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=453393
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-2.6.18-5-686
Version: 2.6.18.dfsg.1-13
Severity: important


I have added an unionfs branch to an existing one mounted on /
it seems to work, but after a while the following message spontaneously
appears in the opened tty and in dmesg

------------[ cut here ]------------
kernel BUG at /build/buildd/linux-modules-extra-2.6-2.6.18/debian/build/build_i3
86_none_686_unionfs/build/lookup.c:108!
invalid opcode: 0000 [#1]
SMP
Modules linked in: squashfs loop nls_iso8859_1 nls_cp437 vfat fat dm_snapshot dm
_mirror dm_mod sd_mod snd_hda_intel snd_hda_codec rtc parport_pc parport snd_pcm
 snd_timer snd soundcore psmouse pcspkr snd_page_alloc serio_raw shpchp pci_hotp
lug tsdev evdev ext2 mbcache usbhid ide_disk usb_storage scsi_mod ide_generic 81
39too 8139cp mii ehci_hcd uhci_hcd usbcore generic ide_core thermal processor fa
n unionfs
CPU:    0
EIP:    0060:[<de836fbb>]    Not tainted VLI
EFLAGS: 00010202   (2.6.18-5-686 #1)
EIP is at unionfs_lookup_backend+0x1da/0x735 [unionfs]
eax: 00000001   ebx: dd7d2ae0   ecx: 00000002   edx: 00000002
esi: dd7d2b41   edi: de83a4a8   ebp: dd7d2b40   esp: ddd79d80
ds: 007b   es: 007b   ss: 0068
Process cron (pid: 2056, ti=ddd78000 task=ddbdeaa0 task.ti=ddd78000)
Stack: 00000001 00007231 00000000 ddcaccf0 00000002 00000002 00000000 ffffffff
       00000000 00000001 00000000 00000008 0000000b dcef7e5c 00000008 00000292
       ddb700c0 dd2c0844 ddd79e44 00000292 ddcaccf0 00000000 c016da85 ddcaccf0
Call Trace:
 [<c016da85>] d_alloc+0x142/0x18f
 [<c016537c>] do_lookup+0xa3/0x135
 [<c0166f45>] __link_path_walk+0x865/0xd1d
 [<c0116d0a>] find_busiest_group+0x177/0x46a
 [<c0167446>] link_path_walk+0x49/0xbd
 [<c012fbe1>] enqueue_hrtimer+0x4b/0x6a
 [<c012fd27>] lock_hrtimer_base+0x19/0x35
 [<c012fdc9>] hrtimer_try_to_cancel+0x3c/0x42
 [<c012fdd9>] hrtimer_cancel+0xa/0x14
 [<c027fb55>] do_nanosleep+0x43/0x6a
 [<c012fee0>] hrtimer_nanosleep+0x3d/0xf0
 [<c016780f>] do_path_lookup+0x20a/0x225
 [<c0167f46>] __user_walk_fd+0x29/0x3f
 [<c0161e99>] vfs_stat_fd+0x15/0x3c
 [<c012fbe1>] enqueue_hrtimer+0x4b/0x6a
 [<c012fd27>] lock_hrtimer_base+0x19/0x35
 [<c012fdc9>] hrtimer_try_to_cancel+0x3c/0x42
 [<c012fdd9>] hrtimer_cancel+0xa/0x14
 [<c027fb55>] do_nanosleep+0x43/0x6a
 [<c012fee0>] hrtimer_nanosleep+0x3d/0xf0
 [<c0161f4d>] sys_stat64+0xf/0x23
 [<c012fcf6>] hrtimer_wakeup+0x0/0x18
 [<c0124657>] do_gettimeofday+0x31/0xce
 [<c0120f0d>] sys_time+0xa/0x2e
 [<c0102c7b>] syscall_call+0x7/0xb
Code: 28 00 00 00 00 e9 d8 02 00 00 8b 43 54 8b 40 28 03 44 24 38 80
7c 24 06 00 8b 00 74 0a 85 c0 0f 85 b4 02 00 00 eb 0c 85 c0 74 08 <0f>
0b 6c 00 26 a4 83 de 8b 54 24 0c 8b 42 54 8b 40 28 03 44 24
EIP: [<de836fbb>] unionfs_lookup_backend+0x1da/0x735 [unionfs] SS:ESP
0068:ddd79d80

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-5-686
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.18-5-686 depends on:
ii  coreutils                     5.97-5.3   The GNU core utilities
ii  debconf [debconf-2.0]         1.5.11     Debian configuration management sy
ii  initramfs-tools [linux-initra 0.85h      tools for generating an initramfs
ii  module-init-tools             3.3-pre4-2 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.18-5-686 recommends:
pn  libc6-i686                    <none>     (no description available)

-- debconf information:
  linux-image-2.6.18-5-686/preinst/failed-to-move-modules-2.6.18-5-686:
* linux-image-2.6.18-5-686/postinst/create-kimage-link-2.6.18-5-686: true
  linux-image-2.6.18-5-686/preinst/initrd-2.6.18-5-686:
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.18-5-686/preinst/lilo-has-ramdisk:
  linux-image-2.6.18-5-686/preinst/abort-install-2.6.18-5-686:
  linux-image-2.6.18-5-686/postinst/old-system-map-link-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/kimage-is-a-directory:
  linux-image-2.6.18-5-686/preinst/elilo-initrd-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/bootloader-test-error-2.6.18-5-686:
  linux-image-2.6.18-5-686/preinst/abort-overwrite-2.6.18-5-686:
  linux-image-2.6.18-5-686/prerm/would-invalidate-boot-loader-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/depmod-error-initrd-2.6.18-5-686: false
  linux-image-2.6.18-5-686/prerm/removing-running-kernel-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/bootloader-error-2.6.18-5-686:
  linux-image-2.6.18-5-686/postinst/depmod-error-2.6.18-5-686: false
  linux-image-2.6.18-5-686/preinst/already-running-this-2.6.18-5-686:
* linux-image-2.6.18-5-686/preinst/lilo-initrd-2.6.18-5-686: false
  linux-image-2.6.18-5-686/preinst/overwriting-modules-2.6.18-5-686: true
  linux-image-2.6.18-5-686/preinst/bootloader-initrd-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/old-dir-initrd-link-2.6.18-5-686: true
  linux-image-2.6.18-5-686/postinst/old-initrd-link-2.6.18-5-686: true



-- 
Elena of Valhalla

homepage: http://www.trueelena.org
email: elena.valhalla@gmail.com

--- End Message ---
--- Begin Message --- 
closing as unionfs is not mainlined and known to play dirty tricks.

thanks for report.

-- 
maks

--- End Message ---
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