Intermittent memory corruption with v4.13-rc6+ and earlier

Michal Hocko mhocko at kernel.org
Thu Aug 24 04:48:34 PDT 2017


On Thu 24-08-17 12:37:43, Mark Rutland wrote:
> Hi,
> 
> I'm chasing intermittent memory corruption bugs seen at least on rc5,
> rc6, and yesterday's HEAD (98b9f8a4549909c6), on arm64. 
> 
> It looks like we make use of dangling references to a freed struct file,
> which is caught by KASAN. Without KASAN, I see a number of other
> intermittent issues that I suspect are the result of this memory
> corruption. I've included an example splat below, complete with KASAN's
> alloc/free traces at the end of this mail.

Is it possible this is the same issue as the one fixed by
http://lkml.kernel.org/r/20170823211408.31198-1-ebiggers3@gmail.com?
-- 
Michal Hocko
SUSE Labs



More information about the linux-arm-kernel mailing list