From: Tomasz Chmielewski <tch@virtall.com>
To: <miaox@cn.fujitsu.com>
Cc: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: filesystem hang when doing snapshot (3.15-rc1)
Date: Thu, 17 Apr 2014 10:46:50 +0100 [thread overview]
Message-ID: <20140417104650.31531b12@s9> (raw)
In-Reply-To: <534F3B60.3090109@cn.fujitsu.com>
On Thu, 17 Apr 2014 10:24:32 +0800
Miao Xie <miaox@cn.fujitsu.com> wrote:
> > scsi_request_fn+0x31/0x4dc [scsi_mod] [120462.559546]
> > [<ffffffff8107a8af>] ? ktime_get_ts+0x50/0xb7 [120462.559594]
> > [<ffffffff810a32db>] ? delayacct_end+0x77/0x82 [120462.559641]
> > [<ffffffff810b1d6e>] ? __lock_page+0x63/0x63 [120462.559688]
> > [<ffffffff8139d724>] schedule+0x6a/0x6c [120462.559734]
> > [<ffffffff8139d7b0>] io_schedule+0x8a/0xc8 [120462.559780]
> > [<ffffffff810b1d77>] sleep_on_page+0x9/0xd [120462.559827]
> > [<ffffffff8139db83>] __wait_on_bit_lock+0x43/0x8a [120462.559874]
> > [<ffffffff810b1d6c>] __lock_page+0x61/0x63 [120462.559921]
> > [<ffffffff810684de>] ? wake_atomic_t_function+0x28/0x28
> > [120462.559969] [<ffffffff810b2064>] find_lock_entry+0x39/0x5d
> > [120462.560016] [<ffffffff810b2091>] find_lock_page+0x9/0x16
>
> It is very strange that we should be blocked here. Could you tell me
> how to reproduce this problem?
I'm not sure, sorry.
It's just a routine cronjob:
- rsync -> snapshot -> remove old snapshots
--
Tomasz Chmielewski
http://wpkg.org
prev parent reply other threads:[~2014-04-17 9:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-16 22:05 filesystem hang when doing snapshot (3.15-rc1) Tomasz Chmielewski
2014-04-17 2:24 ` Miao Xie
2014-04-17 9:46 ` Tomasz Chmielewski [this message]
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