From: Alin Dobre <alin.dobre@elastichosts.com>
To: Chris Mason <clm@fb.com>, Miao Xie <miaox@cn.fujitsu.com>,
linux-btrfs@vger.kernel.org
Subject: Re: [RFC PATCH 5/5] Btrfs: fix broken free space cache after the system crashed
Date: Tue, 10 Jun 2014 09:15:50 +0100 [thread overview]
Message-ID: <5396BEB6.6060203@elastichosts.com> (raw)
In-Reply-To: <53795F83.20109@fb.com>
On 19/05/14 02:33, Chris Mason wrote:
> I had this one in the integration branch, but lockdep reported troubles. It
> looks like lockdep is correct. find_free_extent is nesting the cache rwsem
> inside the groups rwsem, but btrfs_write_out_cache is holding the new cache
> rwsem when it calls find_free_extent.
Is there a new patch for this problem? We have another issue that makes
us reboot the system quite often - I'm going to report that in a
separate thread - and after each machine restart, btrfs reports broken
free space cache. I know that's probably not that harmful, but it's
disturbing and it's not that easy to remount the filesystem to fix the
free space cache.
Cheers,
Alin.
next prev parent reply other threads:[~2014-06-10 9:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 12:00 [PATCH 1/5] Btrfs: change the members' order of btrfs_space_info structure to reduce the cache miss Miao Xie
2014-01-15 12:00 ` [PATCH 2/5] Btrfs: cleanup the redundant code for the block group allocation and init Miao Xie
2014-01-15 12:00 ` [PATCH 3/5] Btrfs: cleanup the code of used_block_group in find_free_extent() Miao Xie
2014-01-15 12:00 ` [PATCH 4/5] Btrfs: fix wrong block group in trace during the free space allocation Miao Xie
2014-01-15 12:00 ` [RFC PATCH 5/5] Btrfs: fix broken free space cache after the system crashed Miao Xie
2014-01-16 5:54 ` Liu Bo
2014-03-01 18:05 ` Alex Lyakas
2014-03-04 6:04 ` Miao Xie
2014-03-08 16:48 ` Alex Lyakas
2014-03-04 15:19 ` Josef Bacik
2014-03-05 7:02 ` Miao Xie
2014-03-05 15:02 ` Josef Bacik
2014-03-26 6:36 ` miaox
2014-04-24 5:31 ` [PATCH V2 1/2] Btrfs: output warning instead of error when loading free space cache failed Miao Xie
2014-04-24 5:31 ` [PATCH V2 2/2] Btrfs: fix broken free space cache after the system crashed Miao Xie
2014-05-19 1:33 ` [RFC PATCH 5/5] " Chris Mason
2014-06-10 8:15 ` Alin Dobre [this message]
2014-01-15 15:56 ` [PATCH 1/5] Btrfs: change the members' order of btrfs_space_info structure to reduce the cache miss David Sterba
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