Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753899AbXJWP4e (ORCPT ); Tue, 23 Oct 2007 11:56:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752579AbXJWP40 (ORCPT ); Tue, 23 Oct 2007 11:56:26 -0400 Received: from E23SMTP02.au.ibm.com ([202.81.18.163]:44663 "EHLO e23smtp02.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752454AbXJWP4Z (ORCPT ); Tue, 23 Oct 2007 11:56:25 -0400 Message-ID: <471E110C.20404@linux.vnet.ibm.com> Date: Tue, 23 Oct 2007 20:49:40 +0530 From: Kamalesh Babulal User-Agent: Thunderbird 1.5.0.13 (X11/20070824) MIME-Version: 1.0 To: LKML CC: Jens Axboe , Andy Whitcroft Subject: [BUG] 2.6.23-git18 Kernel oops in sg helpers Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4723 Lines: 103 Hi, Kernel oops is triggered while running fsx-linux test, followed by cpu softlock over the AMD box Unable to handle kernel NULL pointer dereference at 0000000000000018 RIP: [] gart_map_sg+0x26c/0x406 PGD 10185b067 PUD 10075b067 PMD 0 Oops: 0002 [1] SMP CPU 3 Modules linked in: Pid: 18676, comm: fsx-linux Not tainted 2.6.23-git18-autokern1 #1 RIP: 0010:[] [] gart_map_sg+0x26c/0x406 RSP: 0000:ffff810181edf948 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000002 RDI: ffffffff80573dac RBP: ffff81018ca9a020 R08: 0000000000000004 R09: ffff810181edf8d4 R10: 00000000000000db R11: ffffffff8041926c R12: ffff81018ca9a040 R13: 0000000000000003 R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff81018071e380(0063) knlGS:00000000f7f9a900 CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b CR2: 0000000000000018 CR3: 0000000101281000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process fsx-linux (pid: 18676, threadinfo ffff810181ede000, task ffff810181fc0720) Stack: 0000000300000001 ffff810100000000 ffff81018ca9a040 0000000000000001 0000000200000002 ffff81018ca9a000 ffff81010079d870 ffff810002903c40 ffff810082692000 ffff810180712bd0 ffff810002903c70 0000000002000000 Call Trace: [] scsi_dma_map+0x3f/0x4e [] mptscsih_qcmd+0x1bc/0x4af [] scsi_dispatch_cmd+0x1e7/0x277 [] scsi_request_fn+0x2df/0x369 [] cfq_insert_request+0x2a6/0x2ae [] elv_insert+0xcf/0x18a [] __make_request+0x550/0x58b [] generic_make_request+0x1bb/0x1f0 [] submit_bio+0xd4/0xdf [] dio_bio_submit+0x52/0x66 [] __blockdev_direct_IO+0x813/0xa1c [] pagevec_lookup_tag+0x1a/0x21 [] ext3_direct_IO+0x107/0x19e [] ext3_get_block+0x0/0xe2 [] generic_file_direct_IO+0xcb/0x111 [] generic_file_aio_read+0x86/0x160 [] do_sync_read+0xc8/0x10b [] __mark_inode_dirty+0x29/0x17d [] autoremove_wake_function+0x0/0x2e [] notify_change+0x255/0x26a [] vfs_getattr+0x2b/0x2f [] vfs_fstat+0x33/0x3a [] vfs_read+0xab/0x12e [] sys_read+0x45/0x6e [] ia32_sysret+0x0/0xa Code: c7 41 18 00 00 00 00 8b 44 24 20 e9 7b 01 00 00 e8 27 f8 ff RIP [] gart_map_sg+0x26c/0x406 RSP CR2: 0000000000000018 BUG: soft lockup - CPU#3 stuck for 11s! [swapper:0] CPU 3: Modules linked in: Pid: 0, comm: swapper Tainted: G D 2.6.23-git18-autokern1 #1 RIP: 0010:[] [] _spin_lock_irqsave+0x15/0x24 RSP: 0000:ffff81000177fe98 EFLAGS: 00000286 RAX: 0000000000000282 RBX: ffff81018f6f0000 RCX: ffff81018f6f0068 RDX: ffff810082692800 RSI: 0000000000000001 RDI: ffff810082692850 RBP: ffff81000177fe10 R08: 0000000000000028 R09: 0000000000000086 R10: 0000000000000001 R11: 0000000000000028 R12: ffffffff8020c256 R13: 0000000000000001 R14: ffff810082692800 R15: 0000000000000028 FS: 0000000000000000(0000) GS:ffff81018071e380(0000) knlGS:00000000f7caf080 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 000000000810e708 CR3: 000000018195f000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: [] scsi_eh_scmd_add+0x2c/0x9c [] scsi_times_out+0x0/0x87 [] scsi_times_out+0x6e/0x87 [] run_timer_softirq+0x14f/0x1a0 [] scheduler_tick+0xff/0x10b [] __do_softirq+0x50/0xbb [] call_softirq+0x1c/0x28 [] do_softirq+0x2e/0x97 [] smp_apic_timer_interrupt+0x3e/0x51 [] default_idle+0x0/0x3d [] apic_timer_interrupt+0x66/0x70 [] default_idle+0x29/0x3d [] cpu_idle+0x8b/0xae -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. - 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/