On Thu, Sep 22, 2011 at 11:45:25AM -0700, M wrote: > Hi, > > I am running Fedora 15 644bit on AMD 64bit arch. After update 3 days ago, kernel started to crash when I submit a heavy computation job. It happened today also with similar type of job. > > I submitted a bug report to https://bugzilla.redhat.com/ ; d=740613 . They referred me to contact linux memory management group. I have also uploaded my log file in the bug report. I will be very happy to provide more information if required to resolve this issue. > > Thanks. (fixed url is https://bugzilla.redhat.com/show_bug.cgi?id=740613) Manoj's report here has a system with 32GB of RAM and 40GB of swap oomkill'ing processes when there seems to be ram still available. I note the gfp mask of the failing allocations has GFP_HIGHMEM, and this apparently doesn't happen when he runs 32-bit. Could that be a clue ? Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>