Distribution: debian testing Hardware Environment: iwill h8501, 8x dualcore opteron, 64gb ram Problem Description: triggering OOM events under certain workloads causes lockups. Steps to reproduce: I was able to reproducible trigger this bug by having multiple processess (4-16) with large memory footprints grow until they eventually reach the systems memory limit. Here's a "screenshot" of a trace in 2.6.15-rc2 w/o swapspace: http://666kb.com/i/10yom358azw8w.jpg And here's one with a swapfile: http://666kb.com/i/10z1l2c61a8ld.jpg Used .config: http://phpfi.com/88965
Michael, is this still a problem with recent kernels? Thanks.
I can't tell because I don't work with the systems in question anymore. The BUG() output looked pretty conclusive, but feel free to close this bug.
I am pretty sure that the kernel is too old. It's been so many updates to page allocation/reclamation/throttling mechanism, the problem really needs to be confirmed. But I better let developers to decide.