From: Michal Hocko <mhocko@suse.cz>
To: Glauber Costa <glommer@gmail.com>
Cc: Dave Chinner <david@fromorbit.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: linux-next: slab shrinkers: BUG at mm/list_lru.c:92
Date: Tue, 18 Jun 2013 15:50:25 +0200 [thread overview]
Message-ID: <20130618135025.GK13677@dhcp22.suse.cz> (raw)
In-Reply-To: <20130618104443.GH13677@dhcp22.suse.cz>
And again, another hang. It looks like the inode deletion never
finishes. The good thing is that I do not see any LRU related BUG_ONs
anymore. I am going to test with the other patch in the thread.
2476 [<ffffffff8118325e>] __wait_on_freeing_inode+0x9e/0xc0 <<< waiting for an inode to go away
[<ffffffff81183321>] find_inode_fast+0xa1/0xc0
[<ffffffff8118525f>] iget_locked+0x4f/0x180
[<ffffffff811ef9e3>] ext4_iget+0x33/0x9f0
[<ffffffff811f6a1c>] ext4_lookup+0xbc/0x160
[<ffffffff81174ad0>] lookup_real+0x20/0x60
[<ffffffff81177e25>] lookup_open+0x175/0x1d0
[<ffffffff8117815e>] do_last+0x2de/0x780 <<< holds i_mutex
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
11214 [<ffffffff81178144>] do_last+0x2c4/0x780 <<< blocked on i_mutex
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
11217 [<ffffffff81178144>] do_last+0x2c4/0x780 <<< blocked on i_mutex
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
11288 [<ffffffff81178144>] do_last+0x2c4/0x780 <<< blocked on i_mutex
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
11453 [<ffffffff8118325e>] __wait_on_freeing_inode+0x9e/0xc0
[<ffffffff81183321>] find_inode_fast+0xa1/0xc0
[<ffffffff8118525f>] iget_locked+0x4f/0x180
[<ffffffff811ef9e3>] ext4_iget+0x33/0x9f0
[<ffffffff811f6a1c>] ext4_lookup+0xbc/0x160
[<ffffffff81174ad0>] lookup_real+0x20/0x60
[<ffffffff81177e25>] lookup_open+0x175/0x1d0
[<ffffffff8117815e>] do_last+0x2de/0x780
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
12439 [<ffffffff8118325e>] __wait_on_freeing_inode+0x9e/0xc0
[<ffffffff81183321>] find_inode_fast+0xa1/0xc0
[<ffffffff8118525f>] iget_locked+0x4f/0x180
[<ffffffff811ef9e3>] ext4_iget+0x33/0x9f0
[<ffffffff811f6a1c>] ext4_lookup+0xbc/0x160
[<ffffffff81174ad0>] lookup_real+0x20/0x60
[<ffffffff81175254>] __lookup_hash+0x34/0x40
[<ffffffff81179872>] path_lookupat+0x7a2/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
12542 [<ffffffff81179862>] path_lookupat+0x792/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
12588 [<ffffffff81179862>] path_lookupat+0x792/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
12589 [<ffffffff81179862>] path_lookupat+0x792/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
13098 [<ffffffff8118325e>] __wait_on_freeing_inode+0x9e/0xc0
[<ffffffff81183321>] find_inode_fast+0xa1/0xc0
[<ffffffff8118525f>] iget_locked+0x4f/0x180
[<ffffffff811ef9e3>] ext4_iget+0x33/0x9f0
[<ffffffff811f6a1c>] ext4_lookup+0xbc/0x160
[<ffffffff81174ad0>] lookup_real+0x20/0x60
[<ffffffff81177e25>] lookup_open+0x175/0x1d0
[<ffffffff8117815e>] do_last+0x2de/0x780
[<ffffffff8117ae9a>] path_openat+0xda/0x400
[<ffffffff8117b303>] do_filp_open+0x43/0xa0
[<ffffffff81168ee0>] do_sys_open+0x160/0x1e0
[<ffffffff81168f9c>] sys_open+0x1c/0x20
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
19091 [<ffffffff81179862>] path_lookupat+0x792/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
19092 [<ffffffff81179862>] path_lookupat+0x792/0x830
[<ffffffff81179933>] filename_lookup+0x33/0xd0
[<ffffffff8117ab0b>] user_path_at_empty+0x7b/0xb0
[<ffffffff8117ab4c>] user_path_at+0xc/0x10
[<ffffffff8116ff91>] vfs_fstatat+0x51/0xb0
[<ffffffff81170116>] vfs_stat+0x16/0x20
[<ffffffff8117013f>] sys_newstat+0x1f/0x50
[<ffffffff81582fe9>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2013-06-18 13:50 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-17 14:18 linux-next: slab shrinkers: BUG at mm/list_lru.c:92 Michal Hocko
2013-06-17 15:14 ` Glauber Costa
2013-06-17 15:33 ` Michal Hocko
2013-06-17 16:54 ` Glauber Costa
2013-06-18 7:42 ` Michal Hocko
2013-06-17 21:35 ` Andrew Morton
2013-06-17 22:30 ` Glauber Costa
2013-06-18 2:46 ` Dave Chinner
2013-06-18 6:31 ` Glauber Costa
2013-06-18 8:24 ` Michal Hocko
2013-06-18 10:44 ` Michal Hocko
2013-06-18 13:50 ` Michal Hocko [this message]
2013-06-25 2:27 ` Dave Chinner
2013-06-26 8:15 ` Michal Hocko
2013-06-26 23:24 ` Dave Chinner
2013-06-27 14:54 ` Michal Hocko
2013-06-28 8:39 ` Michal Hocko
2013-06-28 14:31 ` Glauber Costa
2013-06-28 15:12 ` Michal Hocko
2013-06-29 2:55 ` Dave Chinner
2013-06-30 18:33 ` Michal Hocko
2013-07-01 1:25 ` Dave Chinner
2013-07-01 7:50 ` Michal Hocko
2013-07-01 8:10 ` Dave Chinner
2013-07-02 9:22 ` Michal Hocko
2013-07-02 12:19 ` Dave Chinner
2013-07-02 12:44 ` Michal Hocko
2013-07-03 11:24 ` Dave Chinner
2013-07-03 14:08 ` Glauber Costa
2013-07-04 16:36 ` Michal Hocko
2013-07-08 12:53 ` Michal Hocko
2013-07-08 21:04 ` Andrew Morton
2013-07-09 17:34 ` Glauber Costa
2013-07-09 17:51 ` Andrew Morton
2013-07-09 17:32 ` Glauber Costa
2013-07-09 17:50 ` Andrew Morton
2013-07-09 17:57 ` Glauber Costa
2013-07-09 17:57 ` Michal Hocko
2013-07-09 21:39 ` Andrew Morton
2013-07-10 2:31 ` Dave Chinner
2013-07-10 7:34 ` Michal Hocko
2013-07-10 8:06 ` Michal Hocko
2013-07-11 2:26 ` Dave Chinner
2013-07-11 3:03 ` Andrew Morton
2013-07-11 13:23 ` Michal Hocko
2013-07-12 1:42 ` Hugh Dickins
2013-07-13 3:29 ` Dave Chinner
2013-07-15 9:14 ` Michal Hocko
2013-06-18 6:26 ` Glauber Costa
2013-06-18 8:25 ` Michal Hocko
2013-06-19 7:13 ` Michal Hocko
2013-06-19 7:35 ` Glauber Costa
2013-06-19 8:52 ` Glauber Costa
2013-06-19 13:57 ` Michal Hocko
2013-06-19 14:02 ` Glauber Costa
2013-06-19 14:28 ` Michal Hocko
2013-06-20 14:11 ` Glauber Costa
2013-06-20 15:12 ` Michal Hocko
2013-06-20 15:16 ` Michal Hocko
2013-06-21 9:00 ` Michal Hocko
2013-06-23 11:51 ` Glauber Costa
2013-06-23 11:55 ` Glauber Costa
2013-06-25 2:29 ` Dave Chinner
2013-06-26 8:22 ` Michal Hocko
2013-06-18 8:19 ` Michal Hocko
2013-06-18 8:21 ` Glauber Costa
2013-06-18 8:26 ` Michal Hocko
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