Bug#575727: [linux-2.6] kernel bug after unmounting a cifs share
Package: linux-2.6
Version: 2.6.32-3
Severity: normal
--- Please enter the report below this line. ---
kernel crashes after unmounting a cifs share. I've pasted the syslog dump
below.
Mar 28 21:44:48 gonzo kernel: [11826.437106] BUG: Dentry
ffff8800bf5cea80{i=80,n=/} still in use (1) [unmount of cifs cifs]
Mar 28 21:44:48 gonzo kernel: [11826.437133] ------------[ cut here
]------------
Mar 28 21:44:48 gonzo kernel: [11826.437134] kernel BUG at /build/mattems-
linux-2.6_2.6.32-9-amd64-
NYTFdD/linux-2.6-2.6.32-9/debian/build/source_amd64_none/fs/dcache.c:670!
Mar 28 21:44:48 gonzo kernel: [11826.437137] invalid opcode: 0000 [#1] SMP
Mar 28 21:44:48 gonzo kernel: [11826.437140] last sysfs file:
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0/charge_full
Mar 28 21:44:48 gonzo kernel: [11826.437142] CPU 1
Mar 28 21:44:48 gonzo kernel: [11826.437143] Modules linked in: nls_utf8 cifs
usb_storage cryptd aes_x86_64 aes_generic ppdev lp parport sco bridge stp bnep
rfcomm l2cap crc16 fuse ext3 jbd mbcache loop snd_hda_codec_nvhdmi
snd_hda_codec_realtek snd_hda_intel snd_hda_codec btusb bluetooth snd_hwdep
snd_pcm_oss snd_mixer_oss arc4 snd_pcm ecb snd_seq_midi snd_rawmidi
dvb_usb_af9015 dvb_usb iwlagn joydev snd_seq_midi_event uvcvideo videodev
v4l1_compat iwlcore snd_seq i2c_i801 acer_wmi v4l2_compat_ioctl32 pcspkr
dvb_core nvidia(P) psmouse led_class ac snd_timer serio_raw snd_seq_device
mac80211 processor i2c_core battery snd wmi evdev soundcore snd_page_alloc
cfg80211 rfkill usbhid hid xfs exportfs sg sr_mod sd_mod crc_t10dif cdrom
uhci_hcd ahci libata video output atl1e intel_agp ehci_hcd button scsi_mod
usbcore nls_base thermal fan thermal_sys [last unloaded: scsi_wait_scan]
Mar 28 21:44:48 gonzo kernel: [11826.437196] Pid: 6174, comm: umount Tainted:
P 2.6.32-3-amd64 #1 Aspire 6935
Mar 28 21:44:48 gonzo kernel: [11826.437198] RIP: 0010:[<ffffffff810fc7c2>]
[<ffffffff810fc7c2>] shrink_dcache_for_umount_subtree+0x185/0x251
Mar 28 21:44:48 gonzo kernel: [11826.437206] RSP: 0018:ffff880119fe9e78 EFLAGS:
00010292
Mar 28 21:44:48 gonzo kernel: [11826.437208] RAX: 0000000000000064 RBX:
ffff8800bf5cea80 RCX: 000000000000e9f4
Mar 28 21:44:48 gonzo kernel: [11826.437210] RDX: 0000000000000000 RSI:
0000000000000092 RDI: 0000000000000246
Mar 28 21:44:48 gonzo kernel: [11826.437212] RBP: ffff8800bf5cea80 R08:
0000000000000002 R09: ffffffff81399d7f
Mar 28 21:44:48 gonzo kernel: [11826.437214] R10: 0000000000000000 R11:
00000000000186a0 R12: 0000000000010bd0
Mar 28 21:44:48 gonzo kernel: [11826.437215] R13: ffff8800bf5ced20 R14:
0000000000000000 R15: 0000000000000000
Mar 28 21:44:48 gonzo kernel: [11826.437218] FS: 00007f8f8aeb1730(0000)
GS:ffff880005280000(0000) knlGS:0000000000000000
Mar 28 21:44:48 gonzo kernel: [11826.437220] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Mar 28 21:44:48 gonzo kernel: [11826.437222] CR2: 00000000006d8fa8 CR3:
000000010214b000 CR4: 00000000000006e0
Mar 28 21:44:48 gonzo kernel: [11826.437224] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 28 21:44:48 gonzo kernel: [11826.437226] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Mar 28 21:44:48 gonzo kernel: [11826.437228] Process umount (pid: 6174,
threadinfo ffff880119fe8000, task ffff8800bdffaa60)
Mar 28 21:44:48 gonzo kernel: [11826.437229] Stack:
Mar 28 21:44:48 gonzo kernel: [11826.437230] ffff88012f29ca60 ffff88012f29c800
ffffffffa0d2ef30 ffff880101dd2a30
Mar 28 21:44:48 gonzo kernel: [11826.437233] <0> ffff880101dd2a00 ffffffff810fc8bd
ffff88012f29c800 ffffffff810ef30a
Mar 28 21:44:48 gonzo kernel: [11826.437237] <0> ffffffffa0d49720 0000000000000013
ffffffffa0d49720 ffffffff810ef422
Mar 28 21:44:48 gonzo kernel: [11826.437240] Call Trace:
Mar 28 21:44:48 gonzo kernel: [11826.437244] [<ffffffff810fc8bd>] ?
shrink_dcache_for_umount+0x2f/0x3d
Mar 28 21:44:48 gonzo kernel: [11826.437247] [<ffffffff810ef30a>] ?
generic_shutdown_super+0x19/0xee
Mar 28 21:44:48 gonzo kernel: [11826.437250] [<ffffffff810ef422>] ?
kill_anon_super+0x9/0x40
Mar 28 21:44:48 gonzo kernel: [11826.437252] [<ffffffff810efad2>] ?
deactivate_super+0x60/0x7a
Mar 28 21:44:48 gonzo kernel: [11826.437256] [<ffffffff81102127>] ?
sys_umount+0x2c3/0x2f2
Mar 28 21:44:48 gonzo kernel: [11826.437260] [<ffffffff81010b42>] ?
system_call_fastpath+0x16/0x1b
Mar 28 21:44:48 gonzo kernel: [11826.437261] Code: 8b 08 48 8b 45 10 48 85 c0
74 04 48 8b 50 40 48 8d 86 60 02 00 00 48 c7 c7 87 e6 3a 81 48 89 ee 48 89 04
24 31 c0 e8 42 0c 1f 00 <0f> 0b eb fe 48 8b 5d 28 48 39 dd 75 04 31 db eb 03
f0 ff 0b 48
Mar 28 21:44:48 gonzo kernel: [11826.437285] RIP [<ffffffff810fc7c2>]
shrink_dcache_for_umount_subtree+0x185/0x251
Mar 28 21:44:48 gonzo kernel: [11826.437288] RSP <ffff880119fe9e78>
Mar 28 21:44:48 gonzo kernel: [11826.437290] ---[ end trace c5440e8e073c604d
]---
--- System information. ---
Architecture: amd64
Kernel: Linux 2.6.32-3-amd64
Debian Release: squeeze/sid
500 unstable www.debian-multimedia.org
500 unstable ftp.nl.debian.org
500 stable deb.opera.com
--- Package information. ---
Package's Depends field is empty.
Package's Recommends field is empty.
Package's Suggests field is empty.
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