Messages in this thread | | | Subject | Re: [BUG] Lockless patches cause hardlock under heavy IO | From | Peter Zijlstra <> | Date | Thu, 19 Jun 2008 10:12:02 +0200 |
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On Wed, 2008-06-18 at 17:15 -0400, Ryan Hope wrote: > I applied the following patches from 2.6-26-rc5-mm3 to 2.6.26-rc6 and > they caused a hardlock under heavy IO:
What kind of machine, how much memory, how many spindles, what filesystem and what is heavy load?
Furthermore, try the NMI watchdog with serial/net-console to capture its output.
> x86-implement-pte_special.patch > mm-introduce-get_user_pages_fast.patch > mm-introduce-get_user_pages_fast-fix.patch > mm-introduce-get_user_pages_fast-checkpatch-fixes.patch > x86-lockless-get_user_pages_fast.patch > x86-lockless-get_user_pages_fast-checkpatch-fixes.patch > x86-lockless-get_user_pages_fast-fix.patch > x86-lockless-get_user_pages_fast-fix-2.patch > x86-lockless-get_user_pages_fast-fix-2-fix-fix.patch > x86-lockless-get_user_pages_fast-fix-warning.patch > dio-use-get_user_pages_fast.patch > splice-use-get_user_pages_fast.patch > x86-support-1gb-hugepages-with-get_user_pages_lockless.patch > # > mm-readahead-scan-lockless.patch > radix-tree-add-gang_lookup_slot-gang_lookup_slot_tag.patch > #mm-speculative-page-references.patch: clameter saw bustage > mm-speculative-page-references.patch > mm-speculative-page-references-fix.patch > mm-speculative-page-references-fix-fix.patch > mm-speculative-page-references-hugh-fix3.patch > mm-lockless-pagecache.patch > mm-spinlock-tree_lock.patch > powerpc-implement-pte_special.patch > > I am on an x86_64. I dont know what other info you need...
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