linux-ext4 - Re: BUG_ON at mballoc.c:3752

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Message-ID: <20080208150705.GA9111@alice>
Date:	Fri, 8 Feb 2008 16:07:05 +0100
From:	Eric Sesterhenn <snakebyte@....de>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	linux-ext4@...r.kernel.org,
	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>,
	Eric Sandeen <sandeen@...hat.com>
Subject: Re: BUG_ON at mballoc.c:3752

> Eric ,
> can you run the test with below patch and see if this makes any
> difference ?. I know we are not fixing any bugs in the below patch.

ok, i checked out the old version again and applied both patches,
the BUG is gone (no surprise)
In the case where it would have hit the BUG i now get the following message:

[  740.400288] Aborting journal on device loop0.
[  740.405032] ext4_abort called.
[  740.405097] EXT4-fs error (device loop0): ext4_journal_start_sb: Detected aborted journal
[  740.405178] Remounting filesystem read-only
[  740.410974] EXT4-fs error (device loop0) in ext4_ordered_write_end: IO failure
[  740.414300] EXT4-fs error (device loop0) in ext4_reserve_inode_write: Journal has aborted
[  740.414422] pa cba56990: logic 16, phys. 1953, len 16
[  740.414447] EXT4-fs error (device loop0): ext4_mb_release_inode_pa: free 4, pa_free 3
[  740.414548] EXT4-fs error (device loop0) in ext4_mb_free_blocks: Journal has aborted


Greetings, Eric
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