----- Original Message ----- > On Tue, 11 Jan 2011, CAI Qian wrote: > > > BTW, the latest linux-next also had the similar issue. > > > > - kswapd was running for a long time. > > > > I'd be interested to see if this is fixed now that 2ff754fa8f41 (mm: > clear > pages_scanned only if draining a pcp adds pages to the buddy > allocator) > has been merged in Linus' tree. I can still reproduce this similar failure on both AMD and Intel NUMA systems using the latest linus tree with the commit you mentioned. Unfortunately, I can't get a clear sysrq/console output of it but only a part of it (screenshot attached). It at least very easy to reproduce it for me by running LTP oom01 test for both Magny-Cours and Nehalem-EX NUMA systems. CAI Qian
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