From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: 3.7-rc8 boot failure due to recent workqueue-related patch Date: Sat, 8 Dec 2012 16:50:21 -0800 (PST) Message-ID: References: <20121208203524.GA1009@suse.de> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: In-Reply-To: <20121208203524.GA1009@suse.de> Sender: linux-kernel-owner@vger.kernel.org To: Mel Gorman Cc: Tejun Heo , Xiaotian Feng , Neela Syam Kolli , "James E.J. Bottomley" , linux-scsi@vger.kernel.org, Linux Kernel Mailing List List-Id: linux-scsi@vger.kernel.org On Sat, 8 Dec 2012, Mel Gorman wrote: > > Commit 8852aac2 (workqueue: mod_delayed_work_on() shouldn't queue timer on > 0 delay) is causing the following boot failure for me. Found by bisection > but no further analysis unfortunately until I get back home properly. > I've added the relevant maintainers for megasas and SCSI in case it's > somehow specific to that driver. This should be fixed by commit c1d390d8e612. The Megaraid SAS driver was doing insane things, using a work-struct for delayed work, and casting pointers around. It had happened to work for all the wrong reasons before, the mod_delayed_work_on() changes just exposed how crazy that crap was. So please test current -git. If it's still broken, we'll need to know, but I'm assuming this is the already-known-and-fixed bug. Linus