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Message-ID: <20090325152234.GN23439@duck.suse.cz> Date: Wed, 25 Mar 2009 16:22:35 +0100 From: Jan Kara <jack@...e.cz> To: Alexander Beregalov <a.beregalov@...il.com> Cc: Theodore Tso <tytso@....edu>, "linux-next@...r.kernel.org" <linux-next@...r.kernel.org>, linux-ext4@...r.kernel.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: next-20090310: ext4 hangs On Wed 25-03-09 18:18:43, Alexander Beregalov wrote: > 2009/3/25 Jan Kara <jack@...e.cz>: > >> > So, I think I need to try it on 2.6.29-rc7 again. > >> I've looked into this. Obviously, what's happenning is that we delete > >> an inode and jbd2_journal_release_jbd_inode() finds inode is just under > >> writeout in transaction commit and thus it waits. But it gets never woken > >> up and because it has a handle from the transaction, every one eventually > >> blocks on waiting for a transaction to finish. > >> But I don't really see how that can happen. The code is really > >> straightforward and everything happens under j_list_lock... Strange. > > BTW: Is the system SMP? > No, it is UP system. Even stranger. And do you have CONFIG_PREEMPT set? > The bug exists even in 2.6.29, I posted it with a new topic. OK, I've sort-of expected this. Honza -- Jan Kara <jack@...e.cz> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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