Re: possible circular locking dependency mmap_sem/cpu_hotplug_lock.rw_sem

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Aug 31, 2017 at 02:09:51PM +0200, Michal Hocko wrote:
> On Thu 31-08-17 13:10:06, Artem Savkov wrote:
> > Hi Michal,
> > 
> > On Wed, Aug 30, 2017 at 05:43:15PM +0200, Michal Hocko wrote:
> > > The previous patch is insufficient. drain_all_stock can still race with
> > > the memory offline callback and the underlying memcg disappear. So we
> > > need to be more careful and pin the css on the memcg. This patch
> > > instead...
> > 
> > Tried this on top of rc7 and it does fix the splat for me.
> 
> Thanks for testing! Can I assume your Tested-by?

Didn't test much more than the case that was causing it, but yes.

Reported-and-tested-by: Artem Savkov <asavkov@xxxxxxxxxx>

-- 
Regards,
  Artem

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>



[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]
  Powered by Linux