Messages in this thread | | | Date | Mon, 11 Mar 2013 23:30:54 -0400 | From | Theodore Ts'o <> | Subject | Re: torrent hash failures since 3.9.0-rc1 |
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On Tue, Mar 12, 2013 at 11:00:58AM +0800, Zheng Liu wrote: > > Thanks for reporting this problem. My deepest apologies. > > As Ted suggested, could you please try to use ext4 git tree? I want to > make sure whether this bug has been fixed by my lastest patch series or > not.
It's definitely worth a try to compile the master branch of the ext4 tree and see if it reproduces or not.
However, I suspect the problem will still be there. Based on the commit which Markus has identified, I'm guessing it's a race between the extents_status shrinker and writing into uninitialized region of the file (since apprently compiling rtorrent with --with-posix-fallocate is required).
Markus, how much memory do you have in your system? That may be the other reason why I haven't been able to reproduce it to date; I had a lot of free memory when I tried to reproduce the problem, so the slab shrinker didn't engage.
Regards,
- Ted
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