From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Tso Subject: Re: possible ext4 race situation freezing linux Date: Tue, 24 Feb 2009 09:17:49 -0500 Message-ID: <20090224141749.GC5482@mit.edu> References: <1235478142.11758.9.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Andreas Friedrich Berendsen Return-path: Received: from thunk.org ([69.25.196.29]:44555 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756123AbZBXOR5 (ORCPT ); Tue, 24 Feb 2009 09:17:57 -0500 Content-Disposition: inline In-Reply-To: <1235478142.11758.9.camel@localhost.localdomain> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed, Feb 25, 2009 at 01:22:22AM +1300, Andreas Friedrich Berendsen wrote: > Kernel version: 2.26.28.7 > efs2progs version: 1.41.4 > arch: x86_64 (amd) > > I made this test four times and the results were the same: linux > freezes and becomes unresponsive. Only solution is to reset the box. I > do not know if the problem is with the USB devices sub-subsystem or a > possible ext4 race condition. Can you use alt-sysrq to get some stack traces or a register dump out, so we can see where the kernel is hanging? - Ted