Public bug reported:
Binary package hint: linux-image-2.6.38-7-generic
[32974.362693] BUG: Dentry ffff8801069fb180{i=7658c,n=/} still in use (1)
[unmount of autofs autofs]
[32974.362710] ------------[ cut here ]------------
[32974.362726] kernel BUG at /build/buildd/linux-2.6.38/fs/dcache.c:943!
[32974.362735] invalid opcode: 0000 [#1] SMP
[32974.362745] last sysfs file: /sys/devices/virtual/bdi/0:27/uevent
[32974.362754] CPU 5
[32974.362758] Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc
md4 nls_utf8 cifs autofs4 binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc
ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm
snd_seq_midi snd_rawmidi snd_seq_midi_event psmouse snd_seq snd_timer nouveau
snd_seq_device snd ttm drm_kms_helper i7core_edac serio_raw soundcore
snd_page_alloc drm edac_core i2c_algo_bit video it87 hwmon_vid coretemp lp
parport dm_raid45 usbhid firewire_ohci hid firewire_core r8169 crc_itu_t xor
[32974.362863]
[32974.362867] Pid: 4100, comm: automount Not tainted 2.6.38-7-generic
#38-Ubuntu Gigabyte Technology Co., Ltd. EX58-UD3R/EX58-UD3R
[32974.362880] RIP: 0010:[<ffffffff81178685>] [<ffffffff81178685>]
shrink_dcache_for_umount_subtree+0x285/0x290
[32974.362893] RSP: 0018:ffff8801ef7efde8 EFLAGS: 00010296
[32974.362898] RAX: 000000000000006b RBX: ffff8801069fb1dc RCX: 00000000000000d1
[32974.362904] RDX: 0000000000000000 RSI: 0000000000000086 RDI: 0000000000000246
[32974.362911] RBP: ffff8801ef7efe28 R08: 0000000000000033 R09: 0000000000012146
[32974.362916] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8801069fb1dc
[32974.362922] R13: ffff8801069fb180 R14: ffff8801069fb220 R15: 00007f9e57d5ff10
[32974.362928] FS: 00007f9e531a9700(0000) GS:ffff8800cfd40000(0000)
knlGS:0000000000000000
[32974.362934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[32974.362939] CR2: 00007f9e531a3ab8 CR3: 00000001f93bb000 CR4: 00000000000006e0
[32974.362945] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[32974.362950] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[32974.362956] Process automount (pid: 4100, threadinfo ffff8801ef7ee000, task
ffff8801afba16c0)
[32974.362962] Stack:
[32974.362965] ffff8801ef448258 ffffffff81175e96 0000000000000000
ffff8801ef448000
[32974.362975] ffff8801069fb1dc ffff8801069fb180 00007f9e57d5ff10
00007f9e57d5ff10
[32974.362985] ffff8801ef7efe58 ffffffff8117afd1 ffff8801ef7efe48
ffff8801ef448000
[32974.362995] Call Trace:
[32974.363000] [<ffffffff81175e96>] ? pollwake+0x56/0x60
[32974.363005] [<ffffffff8117afd1>] shrink_dcache_for_umount+0x51/0x90
[32974.363012] [<ffffffff8116597c>] generic_shutdown_super+0x2c/0x100
[32974.363018] [<ffffffff81165ae6>] kill_anon_super+0x16/0x60
[32974.363024] [<ffffffff81165b57>] kill_litter_super+0x27/0x30
[32974.363030] [<ffffffffa03514d8>] autofs4_kill_sb+0x48/0x60 [autofs4]
[32974.363037] [<ffffffff81165f55>] deactivate_locked_super+0x45/0x70
[32974.363043] [<ffffffff81166baa>] deactivate_super+0x4a/0x70
[32974.363050] [<ffffffff81181f84>] mntput_no_expire+0xa4/0xf0
[32974.363057] [<ffffffff81183010>] sys_umount+0x60/0xd0
[32974.363063] [<ffffffff8100c002>] system_call_fastpath+0x16/0x1b
[32974.363068] Code: 8b 40 28 4c 8b 08 49 8b 45 30 48 85 c0 74 07 48 8b 90 a8
00 00 00 48 89 34 24 48 c7 c7 48 67 7e 81 4c 89 ee 31 c0 e8 5e 60 44 00 <0f> 0b
0f 0b 0f 1f 80 00 00 00 00 55 48 89 e5 48 83 ec 20 48 89
[32974.363154] RIP [<ffffffff81178685>]
shrink_dcache_for_umount_subtree+0x285/0x290
[32974.363162] RSP <ffff8801ef7efde8>
[32974.367300] ---[ end trace 3c05d6982d808d0c ]---
2.6.38-7-generic #38-Ubuntu SMP Tue Mar 22 13:41:53 UTC 2011 x86_64
x86_64 x86_64 GNU/Linux
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/742084
Title:
kernel BUG
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