On 2025/1/14 17:30, Michal Hocko wrote: > On Tue 14-01-25 10:20:28, Vlastimil Babka wrote: >> On 1/14/25 09:40, Michal Hocko wrote: >>> On Mon 13-01-25 19:45:46, Andrew Morton wrote: > [...] >>>>> For global OOM, system is likely to struggle, do we have to do some >>>>> works to suppress RCU detete? >>>> >>>> rcu_cpu_stall_reset()? >>> >>> Do we really care about those? The code to iterate over all processes >>> under RCU is there (basically) since ever and yet we do not seem to have >>> many reports of stalls? Chen's situation is specific to memcg OOM and >>> touching the global case was mostly for consistency reasons. >> >> Then I'd rather not touch the global case then if it's theoretical? > > No strong opinion on this on my side. The only actual reason > touch_softlockup_watchdog is there is becuase it originally had > incorrectly cond_resched there. If half silencing (soft lock up > detector only) disturbs people then let's just drop that hunk. So do I. If there are no other opinions, I will drop it. Best regards, Ridong
