From: Ted Ts'o Subject: Re: Crash after umount'ing a disconnected disk (Re: extfs reliability) Date: Fri, 6 Aug 2010 14:10:42 -0400 Message-ID: <20100806181042.GB24583@thunk.org> References: <20100804180325.GL9453@thunk.org> <4C5B1137.1070001@vlnb.net> <20100805211758.GA12358@thunk.org> <4C5C0CE2.7030009@vlnb.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Vladislav Bolkhovitin Return-path: Received: from thunk.org ([69.25.196.29]:52535 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752559Ab0HFSKp (ORCPT ); Fri, 6 Aug 2010 14:10:45 -0400 Content-Disposition: inline In-Reply-To: <4C5C0CE2.7030009@vlnb.net> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Fri, Aug 06, 2010 at 05:23:46PM +0400, Vladislav Bolkhovitin wrote: > >> > >>1. A bunch of detected hung tasks with call traces. > >> > > > >Do you eventually get file > >system I/O errors that abort the journal transaction? You should... > > Yes, as you can see in the previously attached log. OK, so what are you complaining about? This is *normal*. You can change how long the kernel will wait before printing the warnings, by adjusting /proc/sys/kernel/hung_task_timeout_secs, but the fact that you're getting the detected hung tasks is the system performing as designed. > >>2. "JBD: recovery failed" I reported before. > > > >I've searched my mail archives, and I'm not sure what you're talking > >about here. Maybe this was in an e-mail that you sent that perhaps > >got lost? > > It's next to the message on which you originally replied. It was > about ext3, but this time I saw it with ext4. Can you resend, and with a new and specific subject line that is helpful for finding it, and just that one message? Sorry, but I get literally hundreds, and some days over a thousand, e-mails a day, and that doesn't include e-mails which get caught in spam traps.... - Ted