* shutdown bugs, since about 2.6.31 or so
@ 2010-03-23 0:50 Gene Heskett
2010-03-23 4:29 ` Suresh Jayaraman
0 siblings, 1 reply; 4+ messages in thread
From: Gene Heskett @ 2010-03-23 0:50 UTC (permalink / raw)
To: LKML
Greetings;
I do not know if I am miss-configured or what, and I hadn't worried about it
extensively because the machine runs fine ANAICT.
But any reboot method short of just pressing the hdwe reset button generates
quite a lengthy process of repeatedly pressing ctl-alt-del, minimum of 6
times I believe, in order to actually do a shutdown, and this isn't at all
graceful. Not all of it makes it to the log, but here is what does.
Mar 22 16:47:53 coyote kernel: [ 3000.619173] BUG: Dentry d76beaa0{i=2,n=/}
still in use (1) [unmount of cifs cifs]
Mar 22 16:47:53 coyote kernel: [ 3000.619191] ------------[ cut here
]------------
Mar 22 16:47:53 coyote kernel: [ 3000.619303] kernel BUG at fs/dcache.c:676!
Mar 22 16:47:53 coyote kernel: [ 3000.619420] invalid opcode: 0000 [#1]
PREEMPT SMP
Mar 22 16:47:53 coyote kernel: [ 3000.619597] last sysfs file:
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/ATK0110:00/hwmon/hwmon0/in3_input
Mar 22 16:47:53 coyote kernel: [ 3000.619803] Modules linked in: nls_utf8
cifs radeon ttm drm_kms_helper drm agpgart nfsd lockd nfs_acl auth_rpcgss
expo
rtfs rfcomm sco bnep l2cap autofs4 sunrpc ipv6 or51132 snd_usb_audio
snd_usb_lib cx88_dvb cx88_vp3054_i2c videobuf_dvb snd_emu10k1_synth
snd_emux_synth
snd_seq_virmidi snd_seq_midi_emul dvb_core tuner_simple tuner_types tda9887
tda8290 tuner snd_emu10k1 cx8800 cx8802 cx88xx snd_rawmidi snd_ac97_codec ac
97_bus snd_seq_dummy i2c_algo_bit snd_seq_oss snd_seq_midi_event snd_seq
ftdi_sio btusb snd_pcm_oss snd_mixer_oss snd_pcm tveeprom bluetooth
snd_seq_dev
ice snd_timer v4l2_common snd_page_alloc videodev snd_util_mem snd_hwdep
v4l1_compat usbserial btcx_risc snd i2c_nforce2 sg k10temp firewire_ohci
firewi
re_core rtc_cmos videobuf_dma_sg sr_mod cdrom pcspkr soundcore videobuf_core
rtc_core crc_itu_t rfkill hwmon usblp joydev rtc_lib button evdev sd_mod ex
t3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: asus_atk0110]
Mar 22 16:47:53 coyote kernel: [ 3000.620117]
Mar 22 16:47:53 coyote kernel: [ 3000.620117] Pid: 5747, comm: umount.cifs
Not tainted 2.6.34-rc2 #1 M2N-SLI DELUXE/System Product Name
Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: 0060:[<c10946ae>] EFLAGS:
00010246 CPU: 1
Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP is at
shrink_dcache_for_umount_subtree+0x14b/0x1fe
Mar 22 16:47:53 coyote kernel: [ 3000.620117] EAX: 0000005b EBX: 00000001
ECX: 00000046 EDX: 00000000
Mar 22 16:47:53 coyote kernel: [ 3000.620117] ESI: d76beaa0 EDI: d76beafc
EBP: d55e6f24 ESP: d55e6ef4
Mar 22 16:47:53 coyote kernel: [ 3000.620117] DS: 007b ES: 007b FS: 00d8 GS:
00e0 SS: 0068
Mar 22 16:47:53 coyote kernel: [ 3000.620117] Process umount.cifs (pid: 5747,
ti=d55e6000 task=d55d8780 task.ti=d55e6000)
Mar 22 16:47:53 coyote kernel: [ 3000.620117] Stack:
Mar 22 16:47:53 coyote kernel: [ 3000.620117] c12d20ac d76beaa0 00000002
d76beafc 00000001 fa14da01 dc956b64 fa14da01
Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> 0000001b dc956a00 fa14a7b4
dc956a00 d55e6f30 c109478e dc956a00 d55e6f40
Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> c1087d38 00000013 fa158a5c
d55e6f4c c1087e32 dc956a00 d55e6f5c c10883c6
Mar 22 16:47:53 coyote kernel: [ 3000.620117] Call Trace:
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c109478e>] ?
shrink_dcache_for_umount+0x2d/0x37
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087d38>] ?
generic_shutdown_super+0x15/0xd2
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087e32>] ?
kill_anon_super+0xc/0x43
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10883c6>] ?
deactivate_super+0x39/0x4b
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1098dfd>] ?
mntput_no_expire+0x8c/0xbb
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10992df>] ?
sys_umount+0x299/0x2be
Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1002813>] ?
sysenter_do_call+0x12/0x22
Mar 22 16:47:53 coyote kernel: [ 3000.620117] Code: 00 89 45 ec 8b 46 10 8b
1e 8b 7e 28 85 c0 74 03 8b 50 20 8d 81 64 01 00 00 50 ff 75 ec 53 57 52 56 6
8 ac 20 2d c1 e8 b5 fc 1b 00 <0f> 0b 83 c4 1c eb fe 8b 7e 1c 39 fe 75 04 31
ff eb 03 f0 ff 0f
Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: [<c10946ae>]
shrink_dcache_for_umount_subtree+0x14b/0x1fe SS:ESP 0068:d55e6ef4
Mar 22 16:47:53 coyote kernel: [ 3000.627952] ---[ end trace fbecccbb5fac2d05
]---
Now, after this point, I have to press ctl-alt-del at least 2 times to get it
to continue the shutdown, it will timeout 3 times trying to umount /usr, and
then finally squawk about a cifs mount that is done in my rc.local file.
That requires 2 more presses of the ctl-alt-del keys, then it finally says
its shutting down, and 20 to 30 seconds later I have to press them again
before it actually reverts to the bios to begin the next boot anew.
I have seen this fs/dcache.c line 676 mentioned many times here, and I would
have thought by now this nuisance would have been spanked.
Thanks.
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Captain's Log, star date 21:34.5...
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: shutdown bugs, since about 2.6.31 or so
2010-03-23 0:50 shutdown bugs, since about 2.6.31 or so Gene Heskett
@ 2010-03-23 4:29 ` Suresh Jayaraman
2010-03-23 10:43 ` [linux-cifs-client] " Jeff Layton
0 siblings, 1 reply; 4+ messages in thread
From: Suresh Jayaraman @ 2010-03-23 4:29 UTC (permalink / raw)
To: Gene Heskett; +Cc: LKML, linux-cifs-client
Ccing linux-cifs-client@lists.samba.org where most of the cifs
development happens.
On 03/23/2010 06:20 AM, Gene Heskett wrote:
> Greetings;
>
> I do not know if I am miss-configured or what, and I hadn't worried about it
> extensively because the machine runs fine ANAICT.
>
> But any reboot method short of just pressing the hdwe reset button generates
> quite a lengthy process of repeatedly pressing ctl-alt-del, minimum of 6
> times I believe, in order to actually do a shutdown, and this isn't at all
> graceful. Not all of it makes it to the log, but here is what does.
>
> Mar 22 16:47:53 coyote kernel: [ 3000.619173] BUG: Dentry d76beaa0{i=2,n=/}
> still in use (1) [unmount of cifs cifs]
> Mar 22 16:47:53 coyote kernel: [ 3000.619191] ------------[ cut here
> ]------------
> Mar 22 16:47:53 coyote kernel: [ 3000.619303] kernel BUG at fs/dcache.c:676!
> Mar 22 16:47:53 coyote kernel: [ 3000.619420] invalid opcode: 0000 [#1]
> PREEMPT SMP
> Mar 22 16:47:53 coyote kernel: [ 3000.619597] last sysfs file:
> /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/ATK0110:00/hwmon/hwmon0/in3_input
> Mar 22 16:47:53 coyote kernel: [ 3000.619803] Modules linked in: nls_utf8
> cifs radeon ttm drm_kms_helper drm agpgart nfsd lockd nfs_acl auth_rpcgss
> expo
> rtfs rfcomm sco bnep l2cap autofs4 sunrpc ipv6 or51132 snd_usb_audio
> snd_usb_lib cx88_dvb cx88_vp3054_i2c videobuf_dvb snd_emu10k1_synth
> snd_emux_synth
> snd_seq_virmidi snd_seq_midi_emul dvb_core tuner_simple tuner_types tda9887
> tda8290 tuner snd_emu10k1 cx8800 cx8802 cx88xx snd_rawmidi snd_ac97_codec ac
> 97_bus snd_seq_dummy i2c_algo_bit snd_seq_oss snd_seq_midi_event snd_seq
> ftdi_sio btusb snd_pcm_oss snd_mixer_oss snd_pcm tveeprom bluetooth
> snd_seq_dev
> ice snd_timer v4l2_common snd_page_alloc videodev snd_util_mem snd_hwdep
> v4l1_compat usbserial btcx_risc snd i2c_nforce2 sg k10temp firewire_ohci
> firewi
> re_core rtc_cmos videobuf_dma_sg sr_mod cdrom pcspkr soundcore videobuf_core
> rtc_core crc_itu_t rfkill hwmon usblp joydev rtc_lib button evdev sd_mod ex
> t3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: asus_atk0110]
> Mar 22 16:47:53 coyote kernel: [ 3000.620117]
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Pid: 5747, comm: umount.cifs
> Not tainted 2.6.34-rc2 #1 M2N-SLI DELUXE/System Product Name
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: 0060:[<c10946ae>] EFLAGS:
> 00010246 CPU: 1
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP is at
> shrink_dcache_for_umount_subtree+0x14b/0x1fe
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EAX: 0000005b EBX: 00000001
> ECX: 00000046 EDX: 00000000
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] ESI: d76beaa0 EDI: d76beafc
> EBP: d55e6f24 ESP: d55e6ef4
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] DS: 007b ES: 007b FS: 00d8 GS:
> 00e0 SS: 0068
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Process umount.cifs (pid: 5747,
> ti=d55e6000 task=d55d8780 task.ti=d55e6000)
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Stack:
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] c12d20ac d76beaa0 00000002
> d76beafc 00000001 fa14da01 dc956b64 fa14da01
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> 0000001b dc956a00 fa14a7b4
> dc956a00 d55e6f30 c109478e dc956a00 d55e6f40
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> c1087d38 00000013 fa158a5c
> d55e6f4c c1087e32 dc956a00 d55e6f5c c10883c6
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Call Trace:
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c109478e>] ?
> shrink_dcache_for_umount+0x2d/0x37
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087d38>] ?
> generic_shutdown_super+0x15/0xd2
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087e32>] ?
> kill_anon_super+0xc/0x43
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10883c6>] ?
> deactivate_super+0x39/0x4b
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1098dfd>] ?
> mntput_no_expire+0x8c/0xbb
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10992df>] ?
> sys_umount+0x299/0x2be
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1002813>] ?
> sysenter_do_call+0x12/0x22
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Code: 00 89 45 ec 8b 46 10 8b
> 1e 8b 7e 28 85 c0 74 03 8b 50 20 8d 81 64 01 00 00 50 ff 75 ec 53 57 52 56 6
> 8 ac 20 2d c1 e8 b5 fc 1b 00 <0f> 0b 83 c4 1c eb fe 8b 7e 1c 39 fe 75 04 31
> ff eb 03 f0 ff 0f
> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: [<c10946ae>]
> shrink_dcache_for_umount_subtree+0x14b/0x1fe SS:ESP 0068:d55e6ef4
> Mar 22 16:47:53 coyote kernel: [ 3000.627952] ---[ end trace fbecccbb5fac2d05
> ]---
>
> Now, after this point, I have to press ctl-alt-del at least 2 times to get it
> to continue the shutdown, it will timeout 3 times trying to umount /usr, and
> then finally squawk about a cifs mount that is done in my rc.local file.
> That requires 2 more presses of the ctl-alt-del keys, then it finally says
> its shutting down, and 20 to 30 seconds later I have to press them again
> before it actually reverts to the bios to begin the next boot anew.
>
> I have seen this fs/dcache.c line 676 mentioned many times here, and I would
> have thought by now this nuisance would have been spanked.
>
> Thanks.
>
--
Suresh Jayaraman
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-cifs-client] shutdown bugs, since about 2.6.31 or so
2010-03-23 4:29 ` Suresh Jayaraman
@ 2010-03-23 10:43 ` Jeff Layton
2010-03-23 14:29 ` Suresh Jayaraman
0 siblings, 1 reply; 4+ messages in thread
From: Jeff Layton @ 2010-03-23 10:43 UTC (permalink / raw)
To: Suresh Jayaraman; +Cc: Gene Heskett, linux-cifs-client, LKML
On Tue, 23 Mar 2010 09:59:57 +0530
Suresh Jayaraman <sjayaraman@suse.de> wrote:
> Ccing linux-cifs-client@lists.samba.org where most of the cifs
> development happens.
>
> On 03/23/2010 06:20 AM, Gene Heskett wrote:
> > Greetings;
> >
> > I do not know if I am miss-configured or what, and I hadn't worried about it
> > extensively because the machine runs fine ANAICT.
> >
> > But any reboot method short of just pressing the hdwe reset button generates
> > quite a lengthy process of repeatedly pressing ctl-alt-del, minimum of 6
> > times I believe, in order to actually do a shutdown, and this isn't at all
> > graceful. Not all of it makes it to the log, but here is what does.
> >
> > Mar 22 16:47:53 coyote kernel: [ 3000.619173] BUG: Dentry d76beaa0{i=2,n=/}
> > still in use (1) [unmount of cifs cifs]
> > Mar 22 16:47:53 coyote kernel: [ 3000.619191] ------------[ cut here
> > ]------------
> > Mar 22 16:47:53 coyote kernel: [ 3000.619303] kernel BUG at fs/dcache.c:676!
> > Mar 22 16:47:53 coyote kernel: [ 3000.619420] invalid opcode: 0000 [#1]
> > PREEMPT SMP
> > Mar 22 16:47:53 coyote kernel: [ 3000.619597] last sysfs file:
> > /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/ATK0110:00/hwmon/hwmon0/in3_input
> > Mar 22 16:47:53 coyote kernel: [ 3000.619803] Modules linked in: nls_utf8
> > cifs radeon ttm drm_kms_helper drm agpgart nfsd lockd nfs_acl auth_rpcgss
> > expo
> > rtfs rfcomm sco bnep l2cap autofs4 sunrpc ipv6 or51132 snd_usb_audio
> > snd_usb_lib cx88_dvb cx88_vp3054_i2c videobuf_dvb snd_emu10k1_synth
> > snd_emux_synth
> > snd_seq_virmidi snd_seq_midi_emul dvb_core tuner_simple tuner_types tda9887
> > tda8290 tuner snd_emu10k1 cx8800 cx8802 cx88xx snd_rawmidi snd_ac97_codec ac
> > 97_bus snd_seq_dummy i2c_algo_bit snd_seq_oss snd_seq_midi_event snd_seq
> > ftdi_sio btusb snd_pcm_oss snd_mixer_oss snd_pcm tveeprom bluetooth
> > snd_seq_dev
> > ice snd_timer v4l2_common snd_page_alloc videodev snd_util_mem snd_hwdep
> > v4l1_compat usbserial btcx_risc snd i2c_nforce2 sg k10temp firewire_ohci
> > firewi
> > re_core rtc_cmos videobuf_dma_sg sr_mod cdrom pcspkr soundcore videobuf_core
> > rtc_core crc_itu_t rfkill hwmon usblp joydev rtc_lib button evdev sd_mod ex
> > t3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: asus_atk0110]
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117]
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] Pid: 5747, comm: umount.cifs
> > Not tainted 2.6.34-rc2 #1 M2N-SLI DELUXE/System Product Name
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: 0060:[<c10946ae>] EFLAGS:
> > 00010246 CPU: 1
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP is at
> > shrink_dcache_for_umount_subtree+0x14b/0x1fe
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] EAX: 0000005b EBX: 00000001
> > ECX: 00000046 EDX: 00000000
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] ESI: d76beaa0 EDI: d76beafc
> > EBP: d55e6f24 ESP: d55e6ef4
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] DS: 007b ES: 007b FS: 00d8 GS:
> > 00e0 SS: 0068
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] Process umount.cifs (pid: 5747,
> > ti=d55e6000 task=d55d8780 task.ti=d55e6000)
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] Stack:
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] c12d20ac d76beaa0 00000002
> > d76beafc 00000001 fa14da01 dc956b64 fa14da01
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> 0000001b dc956a00 fa14a7b4
> > dc956a00 d55e6f30 c109478e dc956a00 d55e6f40
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> c1087d38 00000013 fa158a5c
> > d55e6f4c c1087e32 dc956a00 d55e6f5c c10883c6
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] Call Trace:
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c109478e>] ?
> > shrink_dcache_for_umount+0x2d/0x37
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087d38>] ?
> > generic_shutdown_super+0x15/0xd2
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087e32>] ?
> > kill_anon_super+0xc/0x43
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10883c6>] ?
> > deactivate_super+0x39/0x4b
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1098dfd>] ?
> > mntput_no_expire+0x8c/0xbb
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10992df>] ?
> > sys_umount+0x299/0x2be
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1002813>] ?
> > sysenter_do_call+0x12/0x22
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] Code: 00 89 45 ec 8b 46 10 8b
> > 1e 8b 7e 28 85 c0 74 03 8b 50 20 8d 81 64 01 00 00 50 ff 75 ec 53 57 52 56 6
> > 8 ac 20 2d c1 e8 b5 fc 1b 00 <0f> 0b 83 c4 1c eb fe 8b 7e 1c 39 fe 75 04 31
> > ff eb 03 f0 ff 0f
> > Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: [<c10946ae>]
> > shrink_dcache_for_umount_subtree+0x14b/0x1fe SS:ESP 0068:d55e6ef4
> > Mar 22 16:47:53 coyote kernel: [ 3000.627952] ---[ end trace fbecccbb5fac2d05
> > ]---
> >
> > Now, after this point, I have to press ctl-alt-del at least 2 times to get it
> > to continue the shutdown, it will timeout 3 times trying to umount /usr, and
> > then finally squawk about a cifs mount that is done in my rc.local file.
> > That requires 2 more presses of the ctl-alt-del keys, then it finally says
> > its shutting down, and 20 to 30 seconds later I have to press them again
> > before it actually reverts to the bios to begin the next boot anew.
> >
> > I have seen this fs/dcache.c line 676 mentioned many times here, and I would
> > have thought by now this nuisance would have been spanked.
> >
> > Thanks.
> >
>
>
Looks like the same bug as reported here:
http://lists.samba.org/archive/linux-cifs-client/2010-February/005560.html
...the patch I asked them to test is now here:
http://git.samba.org/?p=jlayton/linux.git;a=commit;h=fd0ab22278f38b0e2b7d303a1101b15d3255aee9
...but I still think the problem is likely in how we autodisable server
inode numbers. A way to reproduce this problem would be very helpful.
--
Jeff Layton <jlayton@samba.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-cifs-client] shutdown bugs, since about 2.6.31 or so
2010-03-23 10:43 ` [linux-cifs-client] " Jeff Layton
@ 2010-03-23 14:29 ` Suresh Jayaraman
0 siblings, 0 replies; 4+ messages in thread
From: Suresh Jayaraman @ 2010-03-23 14:29 UTC (permalink / raw)
To: Jeff Layton; +Cc: Gene Heskett, linux-cifs-client, LKML
On 03/23/2010 04:13 PM, Jeff Layton wrote:
> On Tue, 23 Mar 2010 09:59:57 +0530
>>
>> On 03/23/2010 06:20 AM, Gene Heskett wrote:
>>> Greetings;
>>>
>>> I do not know if I am miss-configured or what, and I hadn't worried about it
>>> extensively because the machine runs fine ANAICT.
>>>
>>> But any reboot method short of just pressing the hdwe reset button generates
>>> quite a lengthy process of repeatedly pressing ctl-alt-del, minimum of 6
>>> times I believe, in order to actually do a shutdown, and this isn't at all
>>> graceful. Not all of it makes it to the log, but here is what does.
>>>
>>> Mar 22 16:47:53 coyote kernel: [ 3000.619173] BUG: Dentry d76beaa0{i=2,n=/}
>>> still in use (1) [unmount of cifs cifs]
>>> Mar 22 16:47:53 coyote kernel: [ 3000.619191] ------------[ cut here
>>> ]------------
>>> Mar 22 16:47:53 coyote kernel: [ 3000.619303] kernel BUG at fs/dcache.c:676!
>>> Mar 22 16:47:53 coyote kernel: [ 3000.619420] invalid opcode: 0000 [#1]
>>> PREEMPT SMP
Is your server an OS/2 server by any chance?
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117]
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Pid: 5747, comm: umount.cifs
>>> Not tainted 2.6.34-rc2 #1 M2N-SLI DELUXE/System Product Name
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: 0060:[<c10946ae>] EFLAGS:
>>> 00010246 CPU: 1
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP is at
>>> shrink_dcache_for_umount_subtree+0x14b/0x1fe
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EAX: 0000005b EBX: 00000001
>>> ECX: 00000046 EDX: 00000000
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] ESI: d76beaa0 EDI: d76beafc
>>> EBP: d55e6f24 ESP: d55e6ef4
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] DS: 007b ES: 007b FS: 00d8 GS:
>>> 00e0 SS: 0068
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Process umount.cifs (pid: 5747,
>>> ti=d55e6000 task=d55d8780 task.ti=d55e6000)
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Stack:
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] c12d20ac d76beaa0 00000002
>>> d76beafc 00000001 fa14da01 dc956b64 fa14da01
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> 0000001b dc956a00 fa14a7b4
>>> dc956a00 d55e6f30 c109478e dc956a00 d55e6f40
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] <0> c1087d38 00000013 fa158a5c
>>> d55e6f4c c1087e32 dc956a00 d55e6f5c c10883c6
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Call Trace:
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c109478e>] ?
>>> shrink_dcache_for_umount+0x2d/0x37
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087d38>] ?
>>> generic_shutdown_super+0x15/0xd2
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1087e32>] ?
>>> kill_anon_super+0xc/0x43
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10883c6>] ?
>>> deactivate_super+0x39/0x4b
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1098dfd>] ?
>>> mntput_no_expire+0x8c/0xbb
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c10992df>] ?
>>> sys_umount+0x299/0x2be
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] [<c1002813>] ?
>>> sysenter_do_call+0x12/0x22
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] Code: 00 89 45 ec 8b 46 10 8b
>>> 1e 8b 7e 28 85 c0 74 03 8b 50 20 8d 81 64 01 00 00 50 ff 75 ec 53 57 52 56 6
>>> 8 ac 20 2d c1 e8 b5 fc 1b 00 <0f> 0b 83 c4 1c eb fe 8b 7e 1c 39 fe 75 04 31
>>> ff eb 03 f0 ff 0f
>>> Mar 22 16:47:53 coyote kernel: [ 3000.620117] EIP: [<c10946ae>]
>>> shrink_dcache_for_umount_subtree+0x14b/0x1fe SS:ESP 0068:d55e6ef4
>>> Mar 22 16:47:53 coyote kernel: [ 3000.627952] ---[ end trace fbecccbb5fac2d05
>>> ]
>
> Looks like the same bug as reported here:
>
> http://lists.samba.org/archive/linux-cifs-client/2010-February/005560.html
>
> ...the patch I asked them to test is now here:
>
> http://git.samba.org/?p=jlayton/linux.git;a=commit;h=fd0ab22278f38b0e2b7d303a1101b15d3255aee9
>
> ...but I still think the problem is likely in how we autodisable server
> inode numbers.
Yes, I also suspect a problem with autodisabling server inode numbers
esp against OS/2 servers, but I never got around a box or reproduce to
investigate it myself.
Thanks,
--
Suresh Jayaraman
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-03-23 14:29 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-03-23 0:50 shutdown bugs, since about 2.6.31 or so Gene Heskett
2010-03-23 4:29 ` Suresh Jayaraman
2010-03-23 10:43 ` [linux-cifs-client] " Jeff Layton
2010-03-23 14:29 ` Suresh Jayaraman
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