Re: mm,console: circular dependency between console_sem and zone lock

2014-06-03 Thread Peter Zijlstra
On Sun, Jun 01, 2014 at 10:08:21AM -0400, Sasha Levin wrote: > On 05/12/2014 12:28 PM, Jan Kara wrote: > > On Wed 07-05-14 22:03:08, Sasha Levin wrote: > >> > Hi all, > >> > > >> > While fuzzing with trinity inside a KVM tools guest running the latest > >> > -next > >> > kernel I've stumbled on t

Re: mm,console: circular dependency between console_sem and zone lock

2014-06-03 Thread Peter Zijlstra
On Mon, Jun 02, 2014 at 09:55:29PM -0400, Steven Rostedt wrote: > Hmm, it failed on a try lock, but on the spinlock within the trylock. I > wonder if we should add this. > > Peter? > > -- Steve > > diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c > index 6815171..6579f84 1006

Re: mm,console: circular dependency between console_sem and zone lock

2014-06-02 Thread Steven Rostedt
On Sun, 01 Jun 2014 10:08:21 -0400 Sasha Levin wrote: > On 05/12/2014 12:28 PM, Jan Kara wrote: > > On Wed 07-05-14 22:03:08, Sasha Levin wrote: > >> > Hi all, > >> > > >> > While fuzzing with trinity inside a KVM tools guest running the latest > >> > -next > >> > kernel I've stumbled on the fo

Re: mm,console: circular dependency between console_sem and zone lock

2014-06-01 Thread Sasha Levin
On 05/12/2014 12:28 PM, Jan Kara wrote: > On Wed 07-05-14 22:03:08, Sasha Levin wrote: >> > Hi all, >> > >> > While fuzzing with trinity inside a KVM tools guest running the latest >> > -next >> > kernel I've stumbled on the following spew: > Thanks for report. So the problem seems to be magina

Re: mm,console: circular dependency between console_sem and zone lock

2014-05-12 Thread Jan Kara
On Wed 07-05-14 22:03:08, Sasha Levin wrote: > Hi all, > > While fuzzing with trinity inside a KVM tools guest running the latest -next > kernel I've stumbled on the following spew: Thanks for report. So the problem seems to be maginally valid but I'm not 100% sure whom to blame :). So printk()