WARNING in __might_sleep

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syzbot

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Apr 14, 2019, 5:28:17 AM4/14/19
to syzkaller-a...@googlegroups.com
Hello,

syzbot found the following crash on:

HEAD commit: a2f9236e Merge 4.9.147 into android-4.9
git tree: android-4.9
console output: https://syzkaller.appspot.com/x/log.txt?x=12840aaf400000
kernel config: https://syzkaller.appspot.com/x/.config?x=cd889df9a2ecd6
dashboard link: https://syzkaller.appspot.com/bug?extid=807aed9baa8060746b9e
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15520eed400000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+807aed...@syzkaller.appspotmail.com

audit: type=1400 audit(1545609679.903:5): avc: denied { associate } for
pid=2065 comm="syz-executor3" name="syz3"
scontext=unconfined_u:object_r:unlabeled_t:s0
tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
hrtimer: interrupt took 45942 ns
sched: DL replenish lagged too much
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4687 at kernel/sched/core.c:7943
__might_sleep+0x149/0x1a0 kernel/sched/core.c:7938
do not call blocking ops when !TASK_RUNNING; state=2 set at
[<ffffffff82814aca>] rt_mutex_slowlock+0xea/0x530
kernel/locking/rtmutex.c:1278
Kernel panic - not syncing: panic_on_warn set ...

Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..


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