From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sachin Sant Subject: Re: Next May 11 : BUG during scsi initialization Date: Mon, 11 May 2009 17:34:07 +0530 Message-ID: <4A081437.7000409@in.ibm.com> References: <20090511161442.3e9d9cb9.sfr@canb.auug.org.au> <4A081002.4050802@in.ibm.com> <20090511115233.GB8112@parisc-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from e28smtp09.in.ibm.com ([59.145.155.9]:42395 "EHLO e28smtp09.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751416AbZEKMEJ (ORCPT ); Mon, 11 May 2009 08:04:09 -0400 In-Reply-To: <20090511115233.GB8112@parisc-linux.org> Sender: linux-next-owner@vger.kernel.org List-ID: To: Matthew Wilcox Cc: Stephen Rothwell , linux-next@vger.kernel.org, linux-scsi , linuxppc-dev@ozlabs.org, Pekka Enberg Matthew Wilcox wrote: > On Mon, May 11, 2009 at 05:16:10PM +0530, Sachin Sant wrote: > >> Today's Next tree failed to boot on a Power6 box with following BUG : >> > > This doesn't actually appear to be a SCSI bug ... it looks like SCSI tried > to allocate memory and things went wrong in the memory allocator: > > [c0000000c7d038b0] [c0000000005d67d8] ._spin_lock+0x10/0x24 > [c0000000c7d03920] [c00000000013fbdc] .__slab_alloc_page+0x344/0x3cc > [c0000000c7d039e0] [c000000000141168] .kmem_cache_alloc+0x13c/0x21c > [c0000000c7d03aa0] [c000000000141b04] .kmem_cache_create+0x294/0x2a8 > [c0000000c7d03b90] [d000000000ea14cc] .scsi_init_queue+0x38/0x170 [scsi_mod] > > Which memory allocator did you have selected (SLAB, SLUB, SLOB, SLQB)? > Default one. SLQB CONFIG_SLQB_ALLOCATOR=y CONFIG_SLQB=y Page size is 64K with Config DEBUG_PAGEALLOC set. CONFIG_PPC_HAS_HASH_64K=y CONFIG_PPC_64K_PAGES=y CONFIG_DEBUG_PAGEALLOC=y Thanks -Sachin -- --------------------------------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India --------------------------------- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp05.in.ibm.com (e28smtp05.in.ibm.com [59.145.155.5]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp05.in.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id CEE14DDE0F for ; Mon, 11 May 2009 22:04:16 +1000 (EST) Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by e28smtp05.in.ibm.com (8.13.1/8.13.1) with ESMTP id n4BC4873026333 for ; Mon, 11 May 2009 17:34:08 +0530 Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay04.in.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n4BC47Kq307410 for ; Mon, 11 May 2009 17:34:07 +0530 Received: from d28av04.in.ibm.com (loopback [127.0.0.1]) by d28av04.in.ibm.com (8.13.1/8.13.3) with ESMTP id n4BC4737023231 for ; Mon, 11 May 2009 22:04:07 +1000 Message-ID: <4A081437.7000409@in.ibm.com> Date: Mon, 11 May 2009 17:34:07 +0530 From: Sachin Sant MIME-Version: 1.0 To: Matthew Wilcox Subject: Re: Next May 11 : BUG during scsi initialization References: <20090511161442.3e9d9cb9.sfr@canb.auug.org.au> <4A081002.4050802@in.ibm.com> <20090511115233.GB8112@parisc-linux.org> In-Reply-To: <20090511115233.GB8112@parisc-linux.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: Stephen Rothwell , Pekka Enberg , linux-next@vger.kernel.org, linux-scsi , linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Matthew Wilcox wrote: > On Mon, May 11, 2009 at 05:16:10PM +0530, Sachin Sant wrote: > >> Today's Next tree failed to boot on a Power6 box with following BUG : >> > > This doesn't actually appear to be a SCSI bug ... it looks like SCSI tried > to allocate memory and things went wrong in the memory allocator: > > [c0000000c7d038b0] [c0000000005d67d8] ._spin_lock+0x10/0x24 > [c0000000c7d03920] [c00000000013fbdc] .__slab_alloc_page+0x344/0x3cc > [c0000000c7d039e0] [c000000000141168] .kmem_cache_alloc+0x13c/0x21c > [c0000000c7d03aa0] [c000000000141b04] .kmem_cache_create+0x294/0x2a8 > [c0000000c7d03b90] [d000000000ea14cc] .scsi_init_queue+0x38/0x170 [scsi_mod] > > Which memory allocator did you have selected (SLAB, SLUB, SLOB, SLQB)? > Default one. SLQB CONFIG_SLQB_ALLOCATOR=y CONFIG_SLQB=y Page size is 64K with Config DEBUG_PAGEALLOC set. CONFIG_PPC_HAS_HASH_64K=y CONFIG_PPC_64K_PAGES=y CONFIG_DEBUG_PAGEALLOC=y Thanks -Sachin -- --------------------------------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India ---------------------------------