Messages in this thread | | | Date | Tue, 14 May 2013 15:06:28 +0800 | From | Zheng Liu <> | Subject | Re: [PATCH 0/2] ext4: deadlocks after allocation failure in ext4_init_io_end() |
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On Mon, May 13, 2013 at 11:08:11PM +0400, Alexey Khoroshilov wrote: > Hi, Ted! > > Our tests for ext4 with targeted fault injection were stalled in Uninterruptible Sleep State > when they simulate a memory allocation failure in ext4_init_io_end() while it is called from > mpage_da_submit_io() or ext4_writepage(). > > It looks like the problems are that pages left locked after failure handling. > > I am not completely sure that my patches take into account all required aspects, > but the tests are passed if the patches are applied. > > Please find below syslog excerpt for the first issue. > > Found by Linux File System Verification project (linuxtesting.org/spruce).
Hi Alexey,
Thanks for fixing this. The patch series looks good to me. But the commit (ext4: use io_end for multiple bios) has been reverted in dev branch of ext4 tree. I forward the mail to Jan to let him know your fixes.
Regards, - Zheng
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