Messages in this thread | | | Date | Thu, 4 Feb 2016 13:29:58 -0800 | From | Andrew Morton <> | Subject | Re: [lkp] [mm] 63c6a211b0: BUG: sleeping function called from invalid context at mm/memory.c:1207 |
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On Thu, 04 Feb 2016 08:46:03 +0800 kernel test robot <ying.huang@linux.intel.com> wrote:
> 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
I'm not sure why this is pointing at vprintk_default...
mm-workingset-per-cgroup-cache-thrash-detection.patch does have a bug which could cause this. It's fixed by mm-workingset-per-cgroup-cache-thrash-detection-fix.patch. Was the -fix patch applied during this testing?
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