From: Jan Kara <jack@suse.cz>
To: Eryu Guan <guaneryu@gmail.com>
Cc: Jan Kara <jack@suse.cz>, Theodore Ts'o <tytso@mit.edu>,
Eryu Guan <eguan@redhat.com>,
linux-ext4@vger.kernel.org
Subject: Re: xfstests generic/130 hang with non-4k block size ext4 on 4.7-rc1 kernel
Date: Fri, 3 Jun 2016 13:58:44 +0200 [thread overview]
Message-ID: <20160603115844.GB2470@quack2.suse.cz> (raw)
In-Reply-To: <20160603101612.GJ10350@eguan.usersys.redhat.com>
On Fri 03-06-16 18:16:12, Eryu Guan wrote:
> On Thu, Jun 02, 2016 at 02:17:50PM +0200, Jan Kara wrote:
> >
> > So I was trying but I could not reproduce the hang either. Can you find out
> > which page is jbd2 thread waiting for and dump page->index, page->flags and
> > also bh->b_state, bh->b_blocknr of all 4 buffer heads attached to it via
> > page->private? Maybe that will shed some light...
>
> I'm using crash on live system when the hang happens, so I got the page
> address from "bt -f"
>
> #6 [ffff880212343b40] wait_on_page_bit at ffffffff8119009e
> ffff880212343b48: ffffea0002c23600 000000000000000d
> ffff880212343b58: 0000000000000000 0000000000000000
> ffff880212343b68: ffff880213251480 ffffffff810cd000
> ffff880212343b78: ffff88021ff27218 ffff88021ff27218
> ffff880212343b88: 00000000c1b4a75a ffff880212343c68
> ffff880212343b98: ffffffff811901bf
Thanks for debugging! In the end I was able to reproduce the issue on my
UML instance as well and I'm debugging what's going on.
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2016-06-03 11:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-31 14:09 xfstests generic/130 hang with non-4k block size ext4 on 4.7-rc1 kernel Eryu Guan
2016-05-31 15:40 ` Theodore Ts'o
2016-06-01 6:38 ` Eryu Guan
2016-06-01 13:53 ` Theodore Ts'o
2016-06-01 16:58 ` Eryu Guan
2016-06-02 8:58 ` Jan Kara
2016-06-02 12:17 ` Jan Kara
2016-06-02 12:30 ` Nikola Pajkovsky
2016-06-03 10:16 ` Eryu Guan
2016-06-03 11:58 ` Jan Kara [this message]
2016-06-08 12:56 ` Jan Kara
2016-06-08 14:23 ` Holger Hoffstätte
2016-06-09 7:23 ` Nikola Pajkovsky
2016-06-09 15:04 ` Jan Kara
2016-06-10 5:52 ` Nikola Pajkovsky
2016-06-16 13:26 ` Jan Kara
2016-06-16 14:42 ` Nikola Pajkovsky
2016-06-20 11:39 ` Jan Kara
2016-06-20 12:59 ` Nikola Pajkovsky
2016-06-21 10:11 ` Jan Kara
2016-06-22 8:55 ` Nikola Pajkovsky
2016-06-09 14:59 ` Jan Kara
2016-06-10 8:37 ` Eryu Guan
2016-06-12 3:28 ` Eryu Guan
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