Re: [BUG] Lockless patches cause hardlock under heavy IO

Ryan Hope
2008-06-23T03:51:35Z

well i get the hardlock on -mm with out using reiser4, i am pretty
sure is swap related

On Sun, Jun 22, 2008 at 10:29 PM, Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> On Monday 23 June 2008 01:18, Ryan Hope wrote:
>> Well in the current version of the patchset we are using, one user
>> would start playing some game (disabling "Disable Heap Randomization"
>> fixed the hardlocks for him... the other user got hardlocks when
>> copying an ISO from a reiser4 partition to a reiserfs partition
>> (disabling swap fixed the issue for him).
>
> Hmm, nobody has reported such a hang with -mm yet, so maybe it
> is another interaction in the patchset. OTOH, probably nobody
> much uses -mm and reiser4, and reiser4 does lots of weird fiddling
> with pagecache so it could be broken in -mm even.
>
>