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Date: Mon, 13 May 2013 21:56:43 +0800 From: Zheng Liu <gnehzuil.liu@...il.com> To: Jan Kara <jack@...e.cz> Cc: EUNBONG SONG <eunb.song@...sung.com>, Theodore Ts'o <tytso@....edu>, Dmitry Monakhov <dmonakhov@...nvz.org>, "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>, Dave Chinner <david@...morbit.com> Subject: Re: Re: Re: EXT4 regression caused 4eec7 On Mon, May 13, 2013 at 03:18:09PM +0200, Jan Kara wrote: > On Sun 12-05-13 13:04:59, EUNBONG SONG wrote: > > > > > > >> Since at this point it's safer to rollback the change and we can > > >> investigate more deeply how to fix it correctly for the next > > >> development cycle, this is the patch which I'm testing. > > > > >> - Ted > > > > > Hello, I've tested with your patch. But the same problem was reproduced. > > > Currently, I'm trying to git bisect. If i done git bisect, i will let you know. > > > > Hi, I've done git bisect. and panic at jbd2_journal_put_journal_head() is caused by > > ae4647fb7654676fc44a97e86eb35f9f06b99f66: "jbd2: reduce journal_head size." > > I write just code patch which revert ae4647fb7654676fc44a97e86eb35f9f06b99f66 because > > I don't know the root cause. > This is really strange. I've verified the code and all the places > modifying b_jlist or b_modified are holding bh_state lock so we should be > safe... Hi Jan, Could you please take a look at this mail [1]. I don't think we hold bh_state lock there. 1. http://www.spinics.net/lists/linux-ext4/msg38205.html Thanks, - Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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