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Bug 510902 - kernel 3.14.4 hangs after note: qbittorrent exited with preempt_count 1 / rcu_preempt detected stalls on CPUs/tasks and hangs
Summary: kernel 3.14.4 hangs after note: qbittorrent exited with preempt_count 1 / rc...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: AMD64 Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-05-21 06:12 UTC by xiando
Modified: 2014-10-25 09:07 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

Attachments
kernel config. (kernel-config-x86_64-3.14.4-gentoo,106.37 KB, text/plain)
2014-05-21 06:14 UTC, xiando 		Details
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Description xiando 2014-05-21 06:12:55 UTC 
May 21 06:14:28 [kernel] general protection fault: 0000 [#1] PREEMPT SMP 
May 21 06:14:28 [kernel] Modules linked in: snd_hda_intel nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_REDIRECT iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag
_ipv4 nf_nat_ipv4 nf_nat nct6775 hwmon_vid nfsv3 hid_logitech_dj snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore 
x86_pkg_temp_thermal coretemp r8169 mii rtc_cmos scsi_transport_iscsi tg3 ptp libphy e1000 fuse nfs lockd sunrpc hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_gyration usbhi
d scsi_transport_fc [last unloaded: snd_hda_intel]
May 21 06:14:28 [kernel] CPU: 0 PID: 9802 Comm: qbittorrent Not tainted 3.14.4-gentoo #1
May 21 06:14:28 [kernel] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.4 09/18/2013
May 21 06:14:28 [kernel] task: ffff880213d9dc40 ti: ffff88020523a000 task.ti: ffff88020523a000
May 21 06:14:28 [kernel] RIP: 0010:[<ffffffff8183d1d8>]  [<ffffffff8183d1d8>] __mutex_lock_slowpath+0x2e/0x1a5
May 21 06:14:28 [kernel] RSP: 0018:ffff88020523be38  EFLAGS: 00010286
May 21 06:14:28 [kernel] RAX: d0be0c7700001000 RBX: ffffffff814afa96 RCX: 0000000000000000
May 21 06:14:28 [kernel] RDX: ffffffff81c65050 RSI: ffffffff811bb18e RDI: ffffffff814afa96
May 21 06:14:28 [kernel] RBP: ffffffff814afa96 R08: 0000000000015010 R09: ffffea0005257480
May 21 06:14:28 [kernel] R10: 0000000000000004 R11: ffffffff811bb4d9 R12: ffff880213d9dc40
May 21 06:14:28 [kernel] R13: ffff8801f4040dd0 R14: ffff880214884520 R15: ffff8801f4040d10
May 21 06:14:28 [kernel] FS:  00007f7373fff700(0000) GS:ffff88021dc00000(0000) knlGS:0000000000000000
May 21 06:14:28 [kernel] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 21 06:14:28 [kernel] CR2: 00007f1cf7e36030 CR3: 000000004f288000 CR4: 00000000001407e0
May 21 06:14:28 [kernel] DR0: 0000000000000045 DR1: 0000000000000000 DR2: 0000000000000000
May 21 06:14:28 [kernel] DR3: 0000000000000005 DR6: 00000000ffff0ff0 DR7: 0000000000000400
May 21 06:14:28 [kernel] Stack:
May 21 06:14:28 [kernel]  ffff88010dd29c00 ffffffffffffff02 ffffffff811bb58c 0000000000000010
May 21 06:14:28 [kernel]  ffffffff814afa96 ffffffff814afa96 ffffffff814afa8e ffff8801f4040dd0
May 21 06:14:28 [kernel]  ffff880214884520 ffffffff8183d35d ffff8800d1706968 ffffffff811bbfc8
May 21 06:14:28 [kernel] Call Trace:
May 21 06:14:28 [kernel]  [<ffffffff811bb58c>] ? ep_remove+0xa5/0xb1
May 21 06:14:28 [kernel]  [<ffffffff814afa96>] ? ttm_dma_tt_init+0x80/0xef
                - Last output repeated twice -
May 21 06:14:28 [kernel]  [<ffffffff814afa8e>] ? ttm_dma_tt_init+0x78/0xef
May 21 06:14:28 [kernel]  [<ffffffff8183d35d>] ? mutex_lock+0xe/0x1d
May 21 06:14:28 [kernel]  [<ffffffff811bbfc8>] ? eventpoll_release_file+0x48/0x8c
May 21 06:14:28 [kernel]  [<ffffffff8118af4c>] ? __fput+0x8d/0x1b1
May 21 06:14:28 [kernel]  [<ffffffff810f60b8>] ? task_work_run+0x73/0x87
May 21 06:14:28 [kernel]  [<ffffffff81033b72>] ? do_notify_resume+0x53/0x68
May 21 06:14:28 [kernel]  [<ffffffff8118b0d3>] ? fput+0x40/0x80
May 21 06:14:28 [kernel]  [<ffffffff8183f02a>] ? int_signal+0x12/0x17
May 21 06:14:28 [kernel] Code: 55 41 54 55 53 48 89 fb 48 83 ec 20 65 4c 8b 24 25 00 b9 00 00 65 ff 04 25 d0 b8 00 00 e8 d1 de 8d ff 48 8b 43 18 48 85 c0 74 05 <8b> 68 28 eb 05 bd 01 00 00 00 e8 24 df 8d ff 85 ed 0f 84 9d 00 
May 21 06:14:28 [kernel] RIP  [<ffffffff8183d1d8>] __mutex_lock_slowpath+0x2e/0x1a5
May 21 06:14:29 [kernel]  RSP <ffff88020523be38>
May 21 06:14:29 [kernel] ---[ end trace 599289e96a8abd8e ]---
May 21 06:14:29 [kernel] note: qbittorrent[9802] exited with preempt_count 1
May 21 06:15:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 3, t=60002 jiffies, g=44669629, c=44669628, q=47115)
May 21 06:15:28 [kernel] INFO: Stall ended before state dump start
May 21 06:18:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=240007 jiffies, g=44669629, c=44669628, q=210955)
May 21 06:18:28 [kernel] INFO: Stall ended before state dump start
May 21 06:21:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 2, t=420012 jiffies, g=44669629, c=44669628, q=323769)
May 21 06:21:28 [kernel] INFO: Stall ended before state dump start
May 21 06:24:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=600017 jiffies, g=44669629, c=44669628, q=435813)
May 21 06:24:28 [kernel] INFO: Stall ended before state dump start
May 21 06:27:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 2, t=780022 jiffies, g=44669629, c=44669628, q=525888)
May 21 06:27:28 [kernel] INFO: Stall ended before state dump start
May 21 06:30:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=960027 jiffies, g=44669629, c=44669628, q=611952)
May 21 06:30:28 [kernel] INFO: Stall ended before state dump start
May 21 06:33:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 2, t=1140032 jiffies, g=44669629, c=44669628, q=683046)
May 21 06:33:28 [kernel] INFO: Stall ended before state dump start
May 21 06:36:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 3, t=1320037 jiffies, g=44669629, c=44669628, q=757590)
May 21 06:36:28 [kernel] INFO: Stall ended before state dump start
May 21 06:39:28 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 0, t=1500042 jiffies, g=44669629, c=44669628, q=856966)
May 21 06:39:28 [kernel] INFO: Stall ended before state dump start
May 21 06:42:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=1680047 jiffies, g=44669629, c=44669628, q=941035)
May 21 06:42:29 [kernel] INFO: Stall ended before state dump start
May 21 06:45:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 2, t=1860052 jiffies, g=44669629, c=44669628, q=1046934)
May 21 06:45:29 [kernel] INFO: Stall ended before state dump start
May 21 06:48:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=2040057 jiffies, g=44669629, c=44669628, q=1164484)
May 21 06:48:29 [kernel] INFO: Stall ended before state dump start
May 21 06:51:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=2220062 jiffies, g=44669629, c=44669628, q=1299005)
May 21 06:51:29 [kernel] INFO: Stall ended before state dump start
May 21 06:54:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=2400067 jiffies, g=44669629, c=44669628, q=1410374)
May 21 06:54:29 [kernel] INFO: Stall ended before state dump start
May 21 06:57:29 [kernel] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 0, t=2580072 jiffies, g=44669629, c=44669628, q=1542553)
May 21 06:57:29 [kernel] INFO: Stall ended before state dump start

At this point I tried shutdown -h now and the system just froze.

Reproducible: Couldn't Reproduce

Actual Results:  
system works

Expected Results:  
total scandal
Comment 1 xiando 2014-05-21 06:14:31 UTC 
Created attachment 377326 [details]
kernel config.

Linux meilong 3.14.4-gentoo #1 SMP PREEMPT Wed May 14 22:39:55 CEST 2014 x86_64 Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz GenuineIntel GNU/Linux
Comment 2 Mike Pagano gentoo-dev 2014-10-23 23:25:35 UTC 
Is this still an issue with later kernels
Comment 3 xiando 2014-10-25 09:07:45 UTC 
Probably not an issue with 3.16.4-gentoo + net-p2p/qbittorrent 3.1.10 based on I can not remember the last time this happened. It just sort of stopped at some point.