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Date: Thu, 1 Jan 2015 11:28:54 +0100
From: Sedat Dilek <sedat.dilek@...il.com>
To: Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
linux-next <linux-next@...r.kernel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Paul McKenney <paulmck@...ux.vnet.ibm.com>
Subject: [next-20141231] sched: WARNING: CPU: 1 PID: 2539 at
kernel/sched/core.c:7303 __might_sleep+0xbd/0xd0()
Hi,
with next-20141231 I am seeing this call-trace:
[ 88.028632] ------------[ cut here ]------------
[ 88.028643] WARNING: CPU: 1 PID: 2539 at kernel/sched/core.c:7303
__might_sleep+0xbd/0xd0()
[ 88.028646] do not call blocking ops when !TASK_RUNNING; state=1
set at [<ffffffff810b82dd>] prepare_to_wait_event+0x5d/0x110
[ 88.028648] Modules linked in: ppp_deflate bsd_comp ppp_async
crc_ccitt arc4 iwldvm uvcvideo mac80211 snd_hda_codec_hdmi
snd_hda_codec_realtek parport_pc videobuf2_vmalloc
snd_hda_codec_generic ppdev videobuf2_memops snd_hda_intel
videobuf2_core rfcomm bnep snd_hda_controller option snd_hda_codec
v4l2_common i915 joydev videodev usb_wwan snd_hwdep usbserial
cdc_ether snd_pcm usbnet btusb snd_seq_midi snd_seq_midi_event
bluetooth psmouse snd_rawmidi iwlwifi snd_seq i2c_algo_bit
drm_kms_helper snd_timer serio_raw snd_seq_device samsung_laptop drm
snd cfg80211 soundcore video lpc_ich intel_rst wmi mac_hid binfmt_misc
lp parport hid_generic usbhid hid r8169 mii usb_storage
[ 88.028694] CPU: 1 PID: 2539 Comm: fio Not tainted
3.19.0-rc2-next20141231-1-iniza-small #1
[ 88.028695] Hardware name: SAMSUNG ELECTRONICS CO., LTD.
530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013
[ 88.028697] ffffffff81a66d5f ffff880070f43c38 ffffffff8175c50c
0000000000000000
[ 88.028700] ffff880070f43c88 ffff880070f43c78 ffffffff810753ba
ffff880070f43d28
[ 88.028703] ffffffff81a67ef5 000000000000026d 0000000000000000
0000000000dce810
[ 88.028706] Call Trace:
[ 88.028712] [<ffffffff8175c50c>] dump_stack+0x4c/0x65
[ 88.028716] [<ffffffff810753ba>] warn_slowpath_common+0x8a/0xc0
[ 88.028719] [<ffffffff81075436>] warn_slowpath_fmt+0x46/0x50
[ 88.028722] [<ffffffff810c2c3d>] ? mark_held_locks+0x6d/0xa0
[ 88.028725] [<ffffffff81761732>] ? mutex_lock_nested+0x2b2/0x4e0
[ 88.028727] [<ffffffff810b82dd>] ? prepare_to_wait_event+0x5d/0x110
[ 88.028729] [<ffffffff810b82dd>] ? prepare_to_wait_event+0x5d/0x110
[ 88.028731] [<ffffffff8109c3ad>] __might_sleep+0xbd/0xd0
[ 88.028734] [<ffffffff817614af>] mutex_lock_nested+0x2f/0x4e0
[ 88.028736] [<ffffffff810b82d3>] ? prepare_to_wait_event+0x53/0x110
[ 88.028739] [<ffffffff8124433f>] aio_read_events+0x4f/0x2d0
[ 88.028742] [<ffffffff810c2e7d>] ? trace_hardirqs_on+0xd/0x10
[ 88.028745] [<ffffffff812447c0>] read_events+0x200/0x320
[ 88.028747] [<ffffffff810b81c0>] ? wait_woken+0xc0/0xc0
[ 88.028750] [<ffffffff810e9690>] ? hrtimer_get_res+0x50/0x50
[ 88.028753] [<ffffffff81244ca0>] ? lookup_ioctx+0xd0/0x140
[ 88.028755] [<ffffffff812466b2>] SyS_io_getevents+0x62/0x100
[ 88.028759] [<ffffffff813b59be>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 88.028762] [<ffffffff817663ed>] system_call_fastpath+0x16/0x1b
[ 88.028764] ---[ end trace dba4f4a06fcdd178 ]---
Attached are my kernel-config, kern-log and patch.
Please, contact me if you need more informations.
Happy new year,
- Sedat -
View attachment "kern-log_3.19.0-rc2-next20141231-1-iniza-small_2014-12-31-22h-3Xm.txt" of type "text/plain" (82650 bytes)
Download attachment "config-3.19.0-rc2-next20141231-1-iniza-small" of type "application/octet-stream" (124362 bytes)
View attachment "3.19.0-rc2-next20141231-1-iniza-small.patch" of type "text/x-diff" (3771 bytes)
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