Messages in this thread | | | Subject | Re: WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (f6f6e1a4), by kmemleak's scan_block() | From | Catalin Marinas <> | Date | Tue, 25 Aug 2009 14:57:38 +0100 |
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On Tue, 2009-08-25 at 12:43 +0200, Ingo Molnar wrote: > btw., i re-tested the original tree, and got the lockup/crash below. > > Ingo > > ---------------> > EXT3 FS on sdb1, internal journal > EXT3-fs: mounted filesystem with writeback data mode. > BUG: soft lockup - CPU#0 stuck for 61s! [kmemleak:3080]
Do you have the "Allow rescheduling during object scanning" patch? Apart from that, you may need another for not holding the tasklist_lock when scanning the task stacks - it is at the top of my kmemleak branch, together with a patch or informing kmemleak about thread stack allocations (http://www.linux-arm.org/git?p=linux-2.6.git;a=shortlog;h=refs/heads/kmemleak).
With these patches, I don't get any soft lockups on my system.
-- Catalin
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