Messages in this thread | | | Date | Tue, 23 Nov 2021 09:13:04 +0000 | From | Mel Gorman <> | Subject | Re: mm: LTP/memcg testcase regression induced by 8cd7c588decf..66ce520bb7c2 series |
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On Sun, Nov 21, 2021 at 11:57:20AM +0100, Mike Galbraith wrote: > Greetings, > > FYI, something in this series causes LTP controllers::memcg_regression > testcase to hang forever. Verified via brute force revert of the lot. > > After letting box moan for 4.5 hours, I poked ^C repeatedly, but runltp > didn't exit/recover gracefully, and ps hung, so I nuked the box. All > memcg_test_1 instances were stuck in reclaim_throttle(). >
I'll see can I reproduce this but do you know offhand what the test is doing and what the expected outcome is? A possibility is that this is a test that is driving the machine near OOM (or at least memcg OOM) and getting throttled instead of getting killed.
-- Mel Gorman SUSE Labs
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