Re: v4l2: circular locking between mmap_sem and device mutex

2014-05-22 Thread Hans Verkuil
On 05/23/2014 04:53 AM, Sasha Levin wrote: > ping? I've reproduced it and plan to look at it soon. Regards, Hans > > On 05/05/2014 11:49 AM, Sasha Levin wrote: >> Hi all, >> >> While fuzzing with trinity inside a KVM tools guest running latest -next >> kernel I've stumbled on the follo

Re: v4l2: circular locking between mmap_sem and device mutex

2014-05-22 Thread Sasha Levin
ping? On 05/05/2014 11:49 AM, Sasha Levin wrote: > Hi all, > > While fuzzing with trinity inside a KVM tools guest running latest -next > kernel I've stumbled on the following: > > > [ 2179.111265] == > [ 2179.112228] [ INFO: possible circular

v4l2: circular locking between mmap_sem and device mutex

2014-05-05 Thread Sasha Levin
Hi all, While fuzzing with trinity inside a KVM tools guest running latest -next kernel I've stumbled on the following: [ 2179.111265] == [ 2179.112228] [ INFO: possible circular locking dependency detected ] [ 2179.113144] 3.15.0-rc3-next-2014