Red Hat Bugzilla – Bug 471871
dlm: fix up memory allocation flags
Last modified: 2009-01-20 15:19:54 EST
Created attachment 323931 [details]
dlm kernel patch
Memory allocations in the dlm should use GFP_NOFS to avoid looping back
into gfs to free memory, which may require dlm operations, causing deadlock.
Most dlm allocations already use GFP_NOFS (usually via ls_allocation), but
this patch fixes up some that have been missed.
AFAIK, no one has actually observed deadlock between dlm and gfs due to
any of the allocations changed by this patch. But apparently the patch
still has an effect somehow, in delaying the onset of gfs2 bug 460218.
posted to rhkernel-list
You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.