From: Matthew Wilcox <willy@linux.intel.com>
To: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 07/22] Replace the XIP page fault handler with the DAX page fault handler
Date: Sat, 9 Aug 2014 07:00:00 -0400 [thread overview]
Message-ID: <20140809110000.GA32313@linux.intel.com> (raw)
In-Reply-To: <20140730095229.GA19205@quack.suse.cz>
On Wed, Jul 30, 2014 at 11:52:29AM +0200, Jan Kara wrote:
> I see the problem now. How about an attached patch? Do you see other
> lockdep warnings with it?
Hit another one :-( Same inversion between i_mmap_mutex and jbd2_handle:
-> #1 (&mapping->i_mmap_mutex){+.+...}:
[<ffffffff810cfa12>] lock_acquire+0xb2/0x1f0
[<ffffffff815cb5e5>] mutex_lock_nested+0x75/0x420
[<ffffffff811bc0ff>] rmap_walk+0x6f/0x390
[<ffffffff811bc5a9>] page_mkclean+0x69/0x90
[<ffffffff81189c10>] clear_page_dirty_for_io+0x60/0x120
[<ffffffffa01d1017>] mpage_submit_page+0x47/0x80 [ext4]
[<ffffffffa01d1160>] mpage_process_page_bufs+0x110/0x120 [ext4]
[<ffffffffa01d16f0>] mpage_prepare_extent_to_map+0x1f0/0x2f0 [ext4]
[<ffffffffa01d6e57>] ext4_writepages+0x427/0x1060 [ext4]
[<ffffffff8118c211>] do_writepages+0x21/0x40
[<ffffffff8117e909>] __filemap_fdatawrite_range+0x59/0x60
[<ffffffff8117ea0d>] filemap_write_and_wait_range+0x2d/0x70
[<ffffffffa01cd7d8>] ext4_sync_file+0x118/0x490 [ext4]
[<ffffffff8122dd2b>] vfs_fsync_range+0x1b/0x30
[<ffffffff811b99ad>] SyS_msync+0x1ed/0x250
(ext4_writepages starts a transaction before calling
mpage_prepare_extent_to_map)
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next prev parent reply other threads:[~2014-08-09 11:00 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-23 19:08 [PATCH v7 00/22] Support ext4 on NV-DIMMs Matthew Wilcox
2014-03-23 19:08 ` [PATCH v7 01/22] Fix XIP fault vs truncate race Matthew Wilcox
2014-03-29 15:57 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 02/22] Allow page fault handlers to perform the COW Matthew Wilcox
2014-04-08 16:34 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 03/22] axonram: Fix bug in direct_access Matthew Wilcox
2014-03-29 16:22 ` Jan Kara
2014-04-02 19:24 ` Matthew Wilcox
2014-03-23 19:08 ` [PATCH v7 04/22] Change direct_access calling convention Matthew Wilcox
2014-03-29 16:30 ` Jan Kara
2014-04-02 19:27 ` Matthew Wilcox
2014-03-23 19:08 ` [PATCH v7 05/22] Introduce IS_DAX(inode) Matthew Wilcox
2014-04-08 15:32 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 06/22] Replace XIP read and write with DAX I/O Matthew Wilcox
2014-04-08 17:56 ` Jan Kara
2014-04-08 20:21 ` Matthew Wilcox
2014-04-09 9:14 ` Jan Kara
2014-04-09 15:19 ` Matthew Wilcox
2014-04-09 20:55 ` Jan Kara
2014-04-13 18:05 ` Matthew Wilcox
2014-04-09 12:04 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 07/22] Replace the XIP page fault handler with the DAX page fault handler Matthew Wilcox
2014-04-08 22:05 ` Jan Kara
2014-04-09 20:48 ` Matthew Wilcox
2014-04-09 21:12 ` Jan Kara
2014-04-13 11:21 ` Matthew Wilcox
2014-04-14 16:04 ` Jan Kara
2014-04-09 10:27 ` Jan Kara
2014-04-09 20:51 ` Matthew Wilcox
2014-04-09 21:43 ` Jan Kara
2014-04-13 18:03 ` Matthew Wilcox
2014-07-29 12:12 ` Matthew Wilcox
2014-07-29 21:04 ` Jan Kara
2014-07-29 21:23 ` Matthew Wilcox
2014-07-30 9:52 ` Jan Kara
2014-07-30 21:02 ` Matthew Wilcox
2014-08-09 11:00 ` Matthew Wilcox [this message]
2014-08-11 8:51 ` Jan Kara
2014-08-11 14:13 ` Matthew Wilcox
2014-08-11 14:35 ` Jan Kara
2014-08-11 15:02 ` Matthew Wilcox
2014-08-11 15:25 ` Jan Kara
2014-05-21 20:35 ` Toshi Kani
2014-06-05 22:38 ` Toshi Kani
2014-03-23 19:08 ` [PATCH v7 08/22] Replace xip_truncate_page with dax_truncate_page Matthew Wilcox
2014-04-08 22:17 ` Jan Kara
2014-04-09 9:26 ` Jan Kara
2014-04-13 19:07 ` Matthew Wilcox
2014-03-23 19:08 ` [PATCH v7 09/22] Remove mm/filemap_xip.c Matthew Wilcox
2014-04-08 18:21 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 10/22] Remove get_xip_mem Matthew Wilcox
2014-04-08 18:20 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 11/22] Replace ext2_clear_xip_target with dax_clear_blocks Matthew Wilcox
2014-04-09 9:46 ` Jan Kara
2014-04-10 14:16 ` Matthew Wilcox
2014-04-10 18:31 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 12/22] ext2: Remove ext2_xip_verify_sb() Matthew Wilcox
2014-04-09 9:52 ` Jan Kara
2014-04-10 14:22 ` Matthew Wilcox
2014-04-10 18:35 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 13/22] ext2: Remove ext2_use_xip Matthew Wilcox
2014-04-09 9:55 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 14/22] ext2: Remove xip.c and xip.h Matthew Wilcox
2014-04-09 9:59 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 15/22] Remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX Matthew Wilcox
2014-04-09 9:59 ` Jan Kara
2014-04-10 14:23 ` Matthew Wilcox
2014-03-23 19:08 ` [PATCH v7 16/22] ext2: Remove ext2_aops_xip Matthew Wilcox
2014-04-09 10:02 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 17/22] Get rid of most mentions of XIP in ext2 Matthew Wilcox
2014-04-09 10:04 ` Jan Kara
2014-04-10 14:26 ` Matthew Wilcox
2014-04-10 18:40 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 18/22] xip: Add xip_zero_page_range Matthew Wilcox
2014-04-09 10:15 ` Jan Kara
2014-04-10 14:27 ` Matthew Wilcox
2014-04-10 18:43 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 19/22] ext4: Make ext4_block_zero_page_range static Matthew Wilcox
2014-03-24 19:11 ` tytso
2014-03-23 19:08 ` [PATCH v7 20/22] ext4: Add DAX functionality Matthew Wilcox
2014-04-09 12:17 ` Jan Kara
2014-03-23 19:08 ` [PATCH v7 21/22] ext4: Fix typos Matthew Wilcox
2014-03-24 19:16 ` tytso
2014-03-23 19:08 ` [PATCH v7 22/22] brd: Rename XIP to DAX Matthew Wilcox
2014-04-09 10:07 ` Jan Kara
2014-05-18 14:58 ` [PATCH v7 00/22] Support ext4 on NV-DIMMs Boaz Harrosh
2014-05-18 23:24 ` Matthew Wilcox
2014-06-17 18:11 ` Boaz Harrosh
2014-06-17 18:19 ` Matthew Wilcox
2014-06-17 18:39 ` Boaz Harrosh
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