[PATCH 0/20] mmu: arch/mm: Port OOM changes to arch page fault handlers.
consul.kautuk at gmail.com
Wed Mar 21 00:18:14 EST 2012
(mm: retry page fault when blocking on disk transfer) and
(x86,mm: make pagefault killable)
The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.
These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.
I was facing hang and livelock problems on my ARM and MIPS boards when
I invoked OOM by running the stress_32k.c test-case attached to this email.
Since both the ARM and MIPS porting chainges were accepted, me and my
co-worker decided to take the initiative to port these changes to all other
MMU based architectures.
Please review and do write back if there is any way I need to
of these patches.
Signed-off-by: Mohd. Faris <mohdfarisq2010 at gmail.com>
Signed-off-by: Kautuk Consul <consul.kautuk at gmail.com>
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