Messages in this thread | | | Subject | Re: [PATCH] per-backing dev unplugging #2 | From | Chris Mason <> | Date | Fri, 12 Mar 2004 14:51:53 -0500 |
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On Thu, 2004-03-11 at 03:36, Jens Axboe wrote: > Hi, > > Final version, unless something stupid pops up. Changes:
During a mixed load test including fsx-linux and a bunch of procs running cp/read/rm loops, I got a null pointer deref with the call trace:
__lock_page->sync_page->block_sync_page
I don't see how we can trust page->mapping in this path, can't it disappear? If so, it would be a bug without Jens' patch too, just harder to hit.
-chris
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