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Re: Another dead lock in libdiskfs / ext2fs

From: Thomas Schwinge
Subject: Re: Another dead lock in libdiskfs / ext2fs
Date: Tue, 11 Dec 2007 17:17:03 +0100
User-agent: Mutt/1.5.11


On Tue, Apr 10, 2007 at 01:48:17PM +0200, I wrote:
> Still while trying to get us an up-to-date git binary package I saw its
> test suite hang, system got instable, tried to attach gdb to the affected
> ext2fs instance, system crashed.  Barry restored the system.  This time I
> first attached a ``noninvasive'' gdb to the ext2fs instance, re-ran the
> test suite, saw it hang at the same place, examined the situation in gdb
> and saw that one of the ext2fs threads was doing a `dir_lookup' for git
> and was hanging there and the syncing thread was hanging as well,
> probably while trying to write the very same inode to disk?
> Unfortunately I failed to move the exact gdb output to a save place
> before I managed to crash the box again.  Gah.

With the patch by Olaf Buddenhagen and Samuel Thibault that recently got
installed into the libdiskfs repository (Thanks!), the Debian git-core
package now builds without any modifications and runs the test suite
completely without crashing the system.

Michael, you can now schedule git-core for regular building on the Debian
build daemon.


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