[CentOS] page allocation failure. order:0, mode:0x50
Steve Bergman
sbergman at rueb.comSat Nov 4 13:18:54 UTC 2006
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Just because I've been pulling my hair out for over a month about this problem, I'd like to get it into the archives. When copying large files (multigigabyte) on a CentOS 4.4 4GB Xeon (running 32 bit) server (2.6.9-42.0.3.ELsmp), I was getting: page allocation failure. order:0, mode:0x50 (snip lines and lines of debug output) This was accompanied by a huge swapout storm that brought the system to a near standstill. Also, it could trigger OOM-Killer activity. Setting /proc/sys/vm/lower_zone_protection to 150 seems to prevent the problem. (It's not been long enough that I'm *certain* that it's fixed but it seems to be.) The upstream bug report is here: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=149088 Hope this helps someone someday, because I had a heck of a time finding an answer. -Steve Bergman
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