From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Oliver Pinter" Subject: Re: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS Date: Tue, 5 Feb 2008 22:48:29 +0100 Message-ID: <6101e8c40802051348w2250e593x54f777bb771bd903@mail.gmail.com> References: <6101e8c40801280031v1a860e90gfb3992ae5db37047@mail.gmail.com> <20080204213911.1bcbaf66.akpm@linux-foundation.org> <1202219216.27371.24.camel@moss-spartans.epoch.ncsc.mil> <20080205104028.190192b1.akpm@linux-foundation.org> <6101e8c40802051115v12d3c02br24873ef1014dbea9@mail.gmail.com> <6101e8c40802051321l13268239m913fd90f56891054@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Andrew Morton" , "=?ISO-8859-1?Q?Oliver_Pinter_(Pint=E9r_Oliv=E9r)\"?=" , "Linux Kernel" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "James Morris" To: unlisted-recipients:; (no To-header on input) Return-path: Received: from nf-out-0910.google.com ([64.233.182.190]:43132 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759031AbYBEVse convert rfc822-to-8bit (ORCPT ); Tue, 5 Feb 2008 16:48:34 -0500 Received: by nf-out-0910.google.com with SMTP id g13so589313nfb.21 for ; Tue, 05 Feb 2008 13:48:30 -0800 (PST) In-Reply-To: <6101e8c40802051321l13268239m913fd90f56891054@mail.gmail.com> Content-Disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 2/5/08, Oliver Pinter wrote: > http://students.zipernowsky.hu/~oliverp/kernel/regression_2624/ > > uploaded: > kernel image > .config > new pictures > lspci > lsusb > > ----- > > when read for /dev/uba then crashed the kernel, the read is egal, the= t > dd or mount is ... > > On 2/5/08, Oliver Pinter wrote: > > yes, but auch too with latest git ... my top is on: > > 9ef9dc69d4167276c04590d67ee55de8380bc1ad > > > > then i complie the new kernel > > > > On 2/5/08, Andrew Morton wrote: > > > On Tue, 05 Feb 2008 08:46:56 -0500 Stephen Smalley > > > wrote: > > > > > > > > > > > On Mon, 2008-02-04 at 21:39 -0800, Andrew Morton wrote: > > > > > On Mon, 28 Jan 2008 09:31:43 +0100 "Oliver Pinter (Pint=E9r O= liv=E9r)" > > > wrote: > > > > > > > > > > > hi all! > > > > > > > > > > > > in the 2.6.24 become i some soft lockups with usb-phone, wh= en i > > pluged > > > > > > in the mobile, then the vfs-layer crashed. am afternoon can= i the > > > > > > .config send, and i bisected the kernel, when i have time. > > > > > > > > > > > > pictures from crash: > > > > > > http://students.zipernowsky.hu/~oliverp/kernel/regression_2= 624/ > > > > > > > > > > It looks like selinux's file_has_perm() is doing spin_lock() = on an > > > > > uninitialised (or already locked) spinlock. > > > > > > > > The trace looks bogus to me - I don't see how file_has_perm() c= ould > > have > > > > been called there, and file_has_perm() doesn't directly take an= y spin > > > > locks. > > > > > > > > > > Oliver, could you please set CONFIG_FRAME_POINTER=3Dy (which migh= t get a > > > better trace), and perhaps try Linus's latest tree from > > > ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/ (which is a= bit > > more > > > careful about telling us about possibly-bogus backtrace entries)? > > > > > > Thanks. > > > > > > > > > -- > > Thanks, > > Oliver > > > > > -- > Thanks, > Oliver > --=20 Thanks, Oliver - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html