* rtmutex deadlock detected (3.18.19-rt15)
@ 2015-07-25 14:05 DIXLOR
2015-07-26 18:56 ` Thomas Gleixner
0 siblings, 1 reply; 4+ messages in thread
From: DIXLOR @ 2015-07-25 14:05 UTC (permalink / raw)
To: linux-rt-users
# xfs_fsr;
^C
[ 3380.373641] WARNING: CPU: 6 PID: 3664 at kernel/locking/rtmutex.h:29
0xffffffff814d4ea2()
[ 3380.373641] rtmutex deadlock detected
[ 3380.373645] Modules linked in: cpufreq_userspace cpufreq_powersave
cpufreq_conservative nct6775 hwmon_vid xhci_hcd usbcore iTCO_wdt
crct10dif_pclmul iTCO_vendor_support shpchp crc32c_intel i2c_i801 lpc_ich
i2c_core usb_common mfd_core button processor dm_mod raid1 ahci libahci fan
thermal thermal_sys [last unloaded: xhci_pci]
[ 3380.373646] CPU: 6 PID: 3664 Comm: xfs_fsr Tainted: G D 3.18.19-rt15 #3
[ 3380.373647] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.14B3
06/23/2014
[ 3380.373647] 0000000000000000 0000000000000009 ffffffff814d1350 ffff8807ef65f538
[ 3380.373648] ffffffff810498dd ffff8807cf289d10 ffff8807ef65f5c0 0000000000000000
[ 3380.373648] 0000000000000000 0000000000000002 ffffffff81049955 ffffffff81680648
[ 3380.373649] Call Trace:
[ 3380.373649] [<ffffffff814d1350>] ? 0xffffffff814d1350
[ 3380.373649] [<ffffffff810498dd>] ? 0xffffffff810498dd
[ 3380.373650] [<ffffffff81049955>] ? 0xffffffff81049955
[ 3380.373650] [<ffffffff814d4ea2>] ? 0xffffffff814d4ea2
[ 3380.373651] [<ffffffff81245565>] ? 0xffffffff81245565
[ 3380.373651] [<ffffffff81262cb0>] ? 0xffffffff81262cb0
[ 3380.373651] [<ffffffff81245797>] ? 0xffffffff81245797
[ 3380.373651] [<ffffffff8115a7d5>] ? 0xffffffff8115a7d5
[ 3380.373652] [<ffffffff811558f8>] ? 0xffffffff811558f8
[ 3380.373652] [<ffffffff81155a56>] ? 0xffffffff81155a56
[ 3380.373652] [<ffffffff81140b23>] ? 0xffffffff81140b23
[ 3380.373653] [<ffffffff81064074>] ? 0xffffffff81064074
[ 3380.373653] [<ffffffff8104c366>] ? 0xffffffff8104c366
[ 3380.373653] [<ffffffff810061f7>] ? 0xffffffff810061f7
[ 3380.373654] [<ffffffff8103b2d6>] ? 0xffffffff8103b2d6
[ 3380.373654] [<ffffffff8103bc6e>] ? 0xffffffff8103bc6e
[ 3380.373654] [<ffffffff8125c3bb>] ? 0xffffffff8125c3bb
[ 3380.373655] [<ffffffff8125c6dc>] ? 0xffffffff8125c6dc
[ 3380.373655] [<ffffffff81234500>] ? 0xffffffff81234500
[ 3380.373655] [<ffffffff81083a4d>] ? 0xffffffff81083a4d
[ 3380.373655] [<ffffffff81234500>] ? 0xffffffff81234500
[ 3380.373656] [<ffffffff814d7a22>] ? 0xffffffff814d7a22
[ 3380.373656] [<ffffffff8115af85>] ? 0xffffffff8115af85
[ 3380.373656] [<ffffffff81239492>] ? 0xffffffff81239492
[ 3380.373657] [<ffffffff8120bf8d>] ? 0xffffffff8120bf8d
[ 3380.373657] [<ffffffff81205d7f>] ? 0xffffffff81205d7f
[ 3380.373657] [<ffffffff8120b656>] ? 0xffffffff8120b656
[ 3380.373658] [<ffffffff8120ce11>] ? 0xffffffff8120ce11
[ 3380.373658] [<ffffffff812322da>] ? 0xffffffff812322da
[ 3380.373659] [<ffffffff811379cd>] ? 0xffffffff811379cd
[ 3380.373659] [<ffffffff81237a6b>] ? 0xffffffff81237a6b
[ 3380.373659] [<ffffffff8114159d>] ? 0xffffffff8114159d
[ 3380.373660] [<ffffffff8113d4d6>] ? 0xffffffff8113d4d6
[ 3380.373660] [<ffffffff811522b0>] ? 0xffffffff811522b0
[ 3380.373660] [<ffffffff81152769>] ? 0xffffffff81152769
[ 3380.373661] [<ffffffff811527d6>] ? 0xffffffff811527d6
[ 3380.373661] [<ffffffff814d7a22>] ? 0xffffffff814d7a22
[ 3380.373661] [<ffffffff814d64f2>] ? 0xffffffff814d64f2
[ 3380.373661] ---[ end trace 0000000000000003 ]---
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: rtmutex deadlock detected (3.18.19-rt15)
2015-07-25 14:05 rtmutex deadlock detected (3.18.19-rt15) DIXLOR
@ 2015-07-26 18:56 ` Thomas Gleixner
2015-07-26 21:22 ` DIXLOR
0 siblings, 1 reply; 4+ messages in thread
From: Thomas Gleixner @ 2015-07-26 18:56 UTC (permalink / raw)
To: DIXLOR; +Cc: linux-rt-users
On Sat, 25 Jul 2015, DIXLOR wrote:
> # xfs_fsr;
> ^C
>
> [ 3380.373641] WARNING: CPU: 6 PID: 3664 at kernel/locking/rtmutex.h:29
> 0xffffffff814d4ea2()
> [ 3380.373641] rtmutex deadlock detected
> [ 3380.373645] Modules linked in: cpufreq_userspace cpufreq_powersave
> cpufreq_conservative nct6775 hwmon_vid xhci_hcd usbcore iTCO_wdt
> crct10dif_pclmul iTCO_vendor_support shpchp crc32c_intel i2c_i801 lpc_ich
> i2c_core usb_common mfd_core button processor dm_mod raid1 ahci libahci fan
> thermal thermal_sys [last unloaded: xhci_pci]
> [ 3380.373646] CPU: 6 PID: 3664 Comm: xfs_fsr Tainted: G D 3.18.19-rt15
> #3
> [ 3380.373647] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.14B3
> 06/23/2014
> [ 3380.373647] 0000000000000000 0000000000000009 ffffffff814d1350
> ffff8807ef65f538
> [ 3380.373648] ffffffff810498dd ffff8807cf289d10 ffff8807ef65f5c0
> 0000000000000000
> [ 3380.373648] 0000000000000000 0000000000000002 ffffffff81049955
> ffffffff81680648
> [ 3380.373649] Call Trace:
> [ 3380.373649] [<ffffffff814d1350>] ? 0xffffffff814d1350
Can you please build your kernel with KALLSYSMS_ALL enabled, so we get
a symbolic resolution of the call trace.
You can also try and enable CONFIG_PROVE_LOCKING. That will give us
even more detailed information about the problem at hand. Note, that
CONFIG_PROVE_LOCKING slows down your kernel, so don't try to run on a
production environment.
Thanks,
tglx
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: rtmutex deadlock detected (3.18.19-rt15)
2015-07-26 18:56 ` Thomas Gleixner
@ 2015-07-26 21:22 ` DIXLOR
2015-07-30 23:15 ` Thomas Gleixner
0 siblings, 1 reply; 4+ messages in thread
From: DIXLOR @ 2015-07-26 21:22 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: linux-rt-users
26.07.2015 21:56, Thomas Gleixner пишет:
> On Sat, 25 Jul 2015, DIXLOR wrote:
>> # xfs_fsr;
>> ^C
>>
>> [ 3380.373641] WARNING: CPU: 6 PID: 3664 at kernel/locking/rtmutex.h:29
>> 0xffffffff814d4ea2()
>> [ 3380.373641] rtmutex deadlock detected
>> [ 3380.373645] Modules linked in: cpufreq_userspace cpufreq_powersave
>> cpufreq_conservative nct6775 hwmon_vid xhci_hcd usbcore iTCO_wdt
>> crct10dif_pclmul iTCO_vendor_support shpchp crc32c_intel i2c_i801 lpc_ich
>> i2c_core usb_common mfd_core button processor dm_mod raid1 ahci libahci fan
>> thermal thermal_sys [last unloaded: xhci_pci]
>> [ 3380.373646] CPU: 6 PID: 3664 Comm: xfs_fsr Tainted: G D 3.18.19-rt15
>> #3
>> [ 3380.373647] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.14B3
>> 06/23/2014
>> [ 3380.373647] 0000000000000000 0000000000000009 ffffffff814d1350
>> ffff8807ef65f538
>> [ 3380.373648] ffffffff810498dd ffff8807cf289d10 ffff8807ef65f5c0
>> 0000000000000000
>> [ 3380.373648] 0000000000000000 0000000000000002 ffffffff81049955
>> ffffffff81680648
>> [ 3380.373649] Call Trace:
>> [ 3380.373649] [<ffffffff814d1350>] ? 0xffffffff814d1350
> Can you please build your kernel with KALLSYSMS_ALL enabled, so we get
> a symbolic resolution of the call trace.
>
> You can also try and enable CONFIG_PROVE_LOCKING. That will give us
> even more detailed information about the problem at hand. Note, that
> CONFIG_PROVE_LOCKING slows down your kernel, so don't try to run on a
> production environment.
I found the reason: xfs mount with filestreams option.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: rtmutex deadlock detected (3.18.19-rt15)
2015-07-26 21:22 ` DIXLOR
@ 2015-07-30 23:15 ` Thomas Gleixner
0 siblings, 0 replies; 4+ messages in thread
From: Thomas Gleixner @ 2015-07-30 23:15 UTC (permalink / raw)
To: DIXLOR; +Cc: linux-rt-users
[-- Attachment #1: Type: TEXT/PLAIN, Size: 1863 bytes --]
On Mon, 27 Jul 2015, DIXLOR wrote:
> 26.07.2015 21:56, Thomas Gleixner пишет:
> > On Sat, 25 Jul 2015, DIXLOR wrote:
> > > # xfs_fsr;
> > > ^C
> > >
> > > [ 3380.373641] WARNING: CPU: 6 PID: 3664 at kernel/locking/rtmutex.h:29
> > > 0xffffffff814d4ea2()
> > > [ 3380.373641] rtmutex deadlock detected
> > > [ 3380.373645] Modules linked in: cpufreq_userspace cpufreq_powersave
> > > cpufreq_conservative nct6775 hwmon_vid xhci_hcd usbcore iTCO_wdt
> > > crct10dif_pclmul iTCO_vendor_support shpchp crc32c_intel i2c_i801 lpc_ich
> > > i2c_core usb_common mfd_core button processor dm_mod raid1 ahci libahci
> > > fan
> > > thermal thermal_sys [last unloaded: xhci_pci]
> > > [ 3380.373646] CPU: 6 PID: 3664 Comm: xfs_fsr Tainted: G D
> > > 3.18.19-rt15
> > > #3
> > > [ 3380.373647] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.14B3
> > > 06/23/2014
> > > [ 3380.373647] 0000000000000000 0000000000000009 ffffffff814d1350
> > > ffff8807ef65f538
> > > [ 3380.373648] ffffffff810498dd ffff8807cf289d10 ffff8807ef65f5c0
> > > 0000000000000000
> > > [ 3380.373648] 0000000000000000 0000000000000002 ffffffff81049955
> > > ffffffff81680648
> > > [ 3380.373649] Call Trace:
> > > [ 3380.373649] [<ffffffff814d1350>] ? 0xffffffff814d1350
> > Can you please build your kernel with KALLSYSMS_ALL enabled, so we get
> > a symbolic resolution of the call trace.
> >
> > You can also try and enable CONFIG_PROVE_LOCKING. That will give us
> > even more detailed information about the problem at hand. Note, that
> > CONFIG_PROVE_LOCKING slows down your kernel, so don't try to run on a
> > production environment.
> I found the reason: xfs mount with filestreams option.
Ok. So we still need to investigate what happens there.
Is there anything else required than
- xfs mount with filestreams option
- Running xfs_fsr and ^C it?
Thanks,
tglx
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-07-25 14:05 rtmutex deadlock detected (3.18.19-rt15) DIXLOR
2015-07-26 18:56 ` Thomas Gleixner
2015-07-26 21:22 ` DIXLOR
2015-07-30 23:15 ` Thomas Gleixner
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