Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758297AbZDIR3b (ORCPT ); Thu, 9 Apr 2009 13:29:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754623AbZDIR3V (ORCPT ); Thu, 9 Apr 2009 13:29:21 -0400 Received: from brick.kernel.dk ([93.163.65.50]:48922 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752797AbZDIR3T (ORCPT ); Thu, 9 Apr 2009 13:29:19 -0400 Date: Thu, 9 Apr 2009 19:29:18 +0200 From: Jens Axboe To: Sachin Sant Cc: linuxppc-dev@ozlabs.org, Stephen Rothwell , linux-next@vger.kernel.org, LKML Subject: Re: [CFQ/OOPS] rb_erase with April 9 next tree Message-ID: <20090409172918.GE5178@kernel.dk> References: <20090409163305.8c7a0371.sfr@canb.auug.org.au> <49DE1969.1000709@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49DE1969.1000709@in.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2294 Lines: 49 On Thu, Apr 09 2009, Sachin Sant wrote: > I had Next 09 booted on a powerpc box and was compiling a kernel. > That's when i ran into this oops. > > Unable to handle kernel paging request for data at address 0x00000010. > Faulting instruction address: 0xc0000000002ee1b0................... > 0:mon> e > cpu 0x0: Vector: 300 (Data Access) at [c0000000d6cf63c0] > pc: c0000000002ee1b0: .rb_erase+0x16c/0x3b4 > lr: c0000000002e14d0: .cfq_prio_tree_add+0x58/0x120 > sp: c0000000d6cf6640 > msr: 8000000000009032 > dar: 10 > dsisr: 40000000 > current = 0xc0000000fbdf5880 > paca = 0xc000000000a92300 > pid = 1867, comm = ld > 0:mon> t > [c0000000d6cf66d0] c0000000002e14d0 .cfq_prio_tree_add+0x58/0x120 > [c0000000d6cf6770] c0000000002e16c8 .__cfq_slice_expired+0xc8/0x11c > [c0000000d6cf6800] c0000000002e3920 .cfq_insert_request+0x374/0x3f4 > [c0000000d6cf68a0] c0000000002cf448 .elv_insert+0x234/0x348 > [c0000000d6cf6940] c0000000002d3348 .__make_request+0x514/0x5b0 > [c0000000d6cf6a00] c0000000002d1348 .generic_make_request+0x430/0x4c8 > [c0000000d6cf6b30] c0000000002d14dc .submit_bio+0xfc/0x124 > [c0000000d6cf6bf0] c000000000156998 .submit_bh+0x14c/0x198 > [c0000000d6cf6c80] c00000000015ba78 .block_read_full_page+0x394/0x40c > [c0000000d6cf7180] c000000000163080 .do_mpage_readpage+0x680/0x688 > [c0000000d6cf7690] c000000000163200 .mpage_readpages+0x104/0x190 > [c0000000d6cf77f0] c0000000001e2aac .ext3_readpages+0x28/0x40 > [c0000000d6cf7870] c0000000000ebd20 .__do_page_cache_readahead+0x180/0x278 > [c0000000d6cf7960] c0000000000ec16c .ondemand_readahead+0x1ac/0x1d8 > [c0000000d6cf7a00] c0000000000e1f28 .generic_file_aio_read+0x260/0x6b0 > [c0000000d6cf7b40] c000000000129f74 .do_sync_read+0xcc/0x130 > [c0000000d6cf7ce0] c00000000012af44 .vfs_read+0xd0/0x1bc > [c0000000d6cf7d80] c00000000012b138 .SyS_read+0x58/0xa0 > [c0000000d6cf7e30] c0000000000084ac syscall_exit+0x0/0x40 Just ran into this myself, too. I'll pull that bad patch from -next asap. I wont be able to fix this before next week. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/