From: Eric Sandeen <sandeen@redhat.com>
Subject: Re: EXT4-fs error in ext4_reserve_inode_write: Journal has aborted
Date: Wed, 20 May 2009 20:19:14 -0500
Message-ID: <4A14AC12.4000108@redhat.com>
References: <40101cc30905201635t6af2586bne1acbc77216628ee@mail.gmail.com>
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Cc: linux-ext4@vger.kernel.org
To: Matteo Croce <matteo@openwrt.org>
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Matteo Croce wrote:
> When launching a web browser in normal desktop usage, I get this and
> the disk mounted read only:
> 
> [ 1101.535101] EXT4-fs error (device sda1) in
> ext4_reserve_inode_write: Journal has aborted

Anything before that?  I'd think you'd get a message when the journal
aborts.

> [ 1101.535114] Remounting filesystem read-only
> [ 1101.535622] EXT4-fs error (device sda1) in
> ext4_reserve_inode_write: Journal has aborted
> [ 1101.535637] EXT4-fs error (device sda1) in ext4_dirty_inode:
> Journal has aborted
> [ 1101.535669] mpage_da_map_blocks block allocation failed for inode
> 1867 at logical offset 0 with max blocks 1 with error -30
> [ 1101.535681] This should not happen.!! Data will be lost

Hm this is probably a bad followon to the filesystem shutting down, and
delalloc data having nowhere to go...

-Eric

> [ 1101.535703] ext4_da_writepages: jbd2_start: 1024 pages, ino 1867; err -30
> [ 1101.535716] Pid: 26, comm: pdflush Not tainted 2.6.29.1 #12
> [ 1101.535724] Call Trace:
> [ 1101.535744]  [<c038602c>] ? printk+0x18/0x1c
> [ 1101.535862]  [<c01e5999>] ext4_da_writepages+0x409/0x430
> [ 1101.535879]  [<c01e7670>] ? ext4_da_get_block_write+0x0/0x210
> [ 1101.535893]  [<c01e5590>] ? ext4_da_writepages+0x0/0x430
> [ 1101.535907]  [<c0174f6e>] do_writepages+0x2e/0x50
> [ 1101.535921]  [<c01b4748>] __writeback_single_inode+0x88/0x500
> [ 1101.535936]  [<c0122957>] ? set_next_entity+0x97/0x180
> [ 1101.535950]  [<c01b4f73>] generic_sync_sb_inodes+0x283/0x410
> [ 1101.535963]  [<c01b52b7>] writeback_inodes+0x47/0xd0
> [ 1101.535975]  [<c01750e2>] wb_kupdate+0xb2/0x120
> [ 1101.535988]  [<c01761d2>] pdflush+0x112/0x1d0
> [ 1101.536000]  [<c0175030>] ? wb_kupdate+0x0/0x120
> [ 1101.536160]  [<c01760c0>] ? pdflush+0x0/0x1d0
> [ 1101.536173]  [<c0144e6c>] kthread+0x3c/0x70
> [ 1101.536184]  [<c0144e30>] ? kthread+0x0/0x70
> [ 1101.536198]  [<c0103cdb>] kernel_thread_helper+0x7/0x1c
> [ 1101.536417] journal commit I/O error
> --
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