On Tue, Mar 20, 2012 at 2:18 PM, Kautuk Consul <consul.kautuk@xxxxxxxxx> wrote:
Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (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 improve/rewrite any of these patches.
What about arch/um/? Does UML not need this change? -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
