From mboxrd@z Thu Jan 1 00:00:00 1970 From: Al Viro Subject: Re: Boot hang due to "pipe: fold file_operations instances in one" in next-20130408 Date: Mon, 8 Apr 2013 22:22:49 +0100 Message-ID: <20130408212249.GT4068@ZenIV.linux.org.uk> References: <5163346B.5090602@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from zeniv.linux.org.uk ([195.92.253.2]:32789 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762574Ab3DHVWv (ORCPT ); Mon, 8 Apr 2013 17:22:51 -0400 Content-Disposition: inline In-Reply-To: <5163346B.5090602@wwwdotorg.org> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Warren Cc: "linux-next@vger.kernel.org" , "linux-tegra@vger.kernel.org" On Mon, Apr 08, 2013 at 03:19:39PM -0600, Stephen Warren wrote: > Al, > > I'm seeing a boot hang on Tegra in next-20130408. Even sysrq on the > serial console doesn't work, yet I think cpuidle is still running since > the LED that shows CPU power is flickering. > > git bisect points at commit 9984d73 "pipe: fold file_operations > instances in one". Reverting > the-merge-of-the-branch-that-contains-this-patch from next-20130408 > certainly solves the problem; reverting just that one patch is a bit > painful since it's in the middle of a bunch of other cleanup. > > Do you have any idea what might be wrong? I can't see anything obvious > in the patch. What userland do you have?