Messages in this thread | | | Date | Tue, 31 May 2016 09:55:45 +0200 | From | Michal Hocko <> | Subject | Re: [mm, oom_adj] 9954f89181: INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] |
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On Tue 31-05-16 04:03:35, kernel test robot wrote: > > > FYI, we noticed the following commit: > > https://github.com/0day-ci/linux Michal-Hocko/Handle-oom-bypass-more-gracefully/20160530-210927 > commit 9954f891814d3f23e10036d2b6404cc80aaa461b ("mm, oom_adj: make sure processes sharing mm have same view of oom_score_adj")
JFTR this patch the underlying code has changed and sighand lock has been removed. See the current state in attempts/process-share-mm-oom-sanitization branch at git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
> (md-udevd)/256 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: > (md-udevd)/256 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: > ( (&(&p->alloc_lock)->rlock&(&p->alloc_lock)->rlock){+.+...}){+.+...}, at: , at: [<ffffffff811d1008>] find_lock_task_mm+0x98/0x1b0 > [<ffffffff811d1008>] find_lock_task_mm+0x98/0x1b0 -- Michal Hocko SUSE Labs
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