linux-kernel - [lkp] [mm] 63c6a211b0: BUG: sleeping function called from invalid context at mm/memory.c:1207

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Date:	Thu, 04 Feb 2016 08:46:03 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Johannes Weiner <hannes@...xchg.org>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: [lkp] [mm] 63c6a211b0: BUG: sleeping function called from invalid
 context at mm/memory.c:1207

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 63c6a211b0eb5b1c86ffdd9d89639fb7f1b70fca ("mm: workingset: per-cgroup cache thrash detection")


[    8.134495]   No soundcards found.
[    8.137598] debug: unmapping init [mem 0xffffffff81cdc000-0xffffffff81d99fff]
[    8.137598] debug: unmapping init [mem 0xffffffff81cdc000-0xffffffff81d99fff]
[    8.155388] BUG: sleeping function called from invalid context at mm/memory.c:1207
[    8.155388] BUG: sleeping function called from invalid context at mm/memory.c:1207
[    8.158212] in_atomic(): 0, irqs_disabled(): 0, pid: 79, name: mount
[    8.158212] in_atomic(): 0, irqs_disabled(): 0, pid: 79, name: mount
[    8.160436] 1 lock held by mount/79:
[    8.160436] 1 lock held by mount/79:
[    8.161488]  #0: 
[    8.161488]  #0:  ( (rcu_read_lockrcu_read_lock){......}){......}, at: , at: [<ffffffff810e4cc9>] rcu_lock_acquire+0x0/0x20
[<ffffffff810e4cc9>] rcu_lock_acquire+0x0/0x20
[    8.164136] Preemption disabled at:
[    8.164136] Preemption disabled at:[<ffffffff8106a358>] vprintk_default+0x18/0x1a
[<ffffffff8106a358>] vprintk_default+0x18/0x1a
[    8.166374] 
[    8.166374] 
[    8.166825] CPU: 0 PID: 79 Comm: mount Not tainted 4.5.0-rc2-00325-g63c6a21 #1
[    8.166825] CPU: 0 PID: 79 Comm: mount Not tainted 4.5.0-rc2-00325-g63c6a21 #1
[    8.168978] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[    8.168978] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[    8.171551]  0000000000000000
[    8.171551]  0000000000000000 ffff88000e953cd0 ffff88000e953cd0 ffffffff812c09b8 ffffffff812c09b8 ffff88000e953cf0 ffff88000e953cf0

[    8.173896]  ffffffff81052def
[    8.173896]  ffffffff81052def 00007fffe5cfe000 00007fffe5cfe000 ffff88000e94eaf8 ffff88000e94eaf8 ffff88000e953dc0 ffff88000e953dc0

[    8.176278]  ffffffff810bfbf6
[    8.176278]  ffffffff810bfbf6 00007fffe5cfdfff 00007fffe5cfdfff 00007fffe5cfdfff 00007fffe5cfdfff 00007fffe5cfdfff 00007fffe5cfdfff

[    8.178586] Call Trace:
[    8.178586] Call Trace:
[    8.179340]  [<ffffffff812c09b8>] dump_stack+0x19/0x1b
[    8.179340]  [<ffffffff812c09b8>] dump_stack+0x19/0x1b
[    8.180847]  [<ffffffff81052def>] ___might_sleep+0x15e/0x163
[    8.180847]  [<ffffffff81052def>] ___might_sleep+0x15e/0x163
[    8.182483]  [<ffffffff810bfbf6>] unmap_single_vma+0x3aa/0x652
[    8.182483]  [<ffffffff810bfbf6>] unmap_single_vma+0x3aa/0x652
[    8.184181]  [<ffffffff810c04af>] unmap_vmas+0x49/0x68
[    8.184181]  [<ffffffff810c04af>] unmap_vmas+0x49/0x68
[    8.185682]  [<ffffffff810c5b30>] exit_mmap+0x6e/0xf6
[    8.185682]  [<ffffffff810c5b30>] exit_mmap+0x6e/0xf6
[    8.187145]  [<ffffffff81038eb5>] mmput+0x59/0xec
[    8.187145]  [<ffffffff81038eb5>] mmput+0x59/0xec
[    8.188528]  [<ffffffff8103cbbd>] do_exit+0x32a/0x864
[    8.188528]  [<ffffffff8103cbbd>] do_exit+0x32a/0x864
[    8.190105]  [<ffffffff8103d167>] do_group_exit+0x44/0xaf
[    8.190105]  [<ffffffff8103d167>] do_group_exit+0x44/0xaf
[    8.191645]  [<ffffffff8103d1e1>] SyS_exit_group+0xf/0xf
[    8.191645]  [<ffffffff8103d1e1>] SyS_exit_group+0xf/0xf
[    8.193200]  [<ffffffff816496b3>] entry_SYSCALL_64_fastpath+0x16/0x7a


Thanks,
Kernel Test Robot

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