Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753240Ab0GAFE5 (ORCPT ); Thu, 1 Jul 2010 01:04:57 -0400 Received: from ozlabs.org ([203.10.76.45]:50138 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752097Ab0GAFE4 (ORCPT ); Thu, 1 Jul 2010 01:04:56 -0400 From: Michael Neuling To: divya cc: linuxppc-dev@ozlabs.org, Latchesar Ionkov , Ron Minnich , LKML , Christoph Hellwig , npiggin@suse.de, Jens Axboe Subject: Re: Oops while running fs_racer test on a POWER6 box against latest git In-reply-to: <4C2B28F3.7000006@linux.vnet.ibm.com> References: <4C2B28F3.7000006@linux.vnet.ibm.com> Comments: In-reply-to divya message dated "Wed, 30 Jun 2010 16:52:27 +0530." X-Mailer: MH-E 8.2; nmh 1.3; GNU Emacs 23.1.1 Date: Thu, 01 Jul 2010 15:04:54 +1000 Message-ID: <7381.1277960694@neuling.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4462 Lines: 87 > While running fs_racer test from LTP on a POWER6 box against latest git(2.6.3 5-rc3-git4 - commitid 984bc9601f64fd) > came across the following warning followed by multiple oops. > > ------------[ cut here ]------------ > > Badness at kernel/mutex-debug.c:64 > NIP: c0000000000be9e8 LR: c0000000000be9cc CTR: 0000000000000000 > REGS: c00000010be8f6f0 TRAP: 0700 Not tainted (2.6.35-rc3-git4-autotest) > MSR: 8000000000029032 CR: 24224422 XER: 00000012 > TASK = c00000010727cf00[8211] 'fs_racer_file_c' THREAD: c00000010be8bb50 CPU: 2 > GPR00: 0000000000000000 c00000010be8f970 c000000000d3d798 0000000000000001 > GPR04: c00000010be8fa70 c00000010be8c000 c00000010727d9f8 0000000000000000 > GPR08: c0000000043042f0 c0000000016534e8 000000000000017a c000000000c29a1c > GPR12: 0000000028228424 c00000000f600500 c00000010be8fc40 0000000020000000 > GPR16: fffffffffffff000 c000000109c73000 c00000010be8fc30 0000000000010442 > GPR20: 0000000000000000 0000000000000000 00000000000001b6 c00000010dd12250 > GPR24: c00000000017c08c c00000010727cf00 c00000010dd12278 c00000010dd12210 > GPR28: 0000000000000001 c00000010be8c000 c000000000ca2008 c00000010be8fa70 > NIP [c0000000000be9e8] .mutex_remove_waiter+0xa4/0x130 > LR [c0000000000be9cc] .mutex_remove_waiter+0x88/0x130 > Call Trace: > [c00000010be8f970] [c00000010be8fa00] 0xc00000010be8fa00 (unreliable) > [c00000010be8fa00] [c00000000064a9f0] .mutex_lock_nested+0x384/0x430 > Instruction dump: > e81f0010 e93d0000 7fa04800 41fe0028 482e96e5 60000000 2fa30000 419e0018 > e93e8008 80090000 2f800000 409e0008<0fe00000> e93e8000 80090000 2f800000 > Unable to handle kernel paging request for unknown fault > Faulting instruction address: 0xc00000000008d0f4 > Oops: Kernel access of bad area, sig: 7 [#1] > SMP NR_CPUS=1024 NUMA > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > pSeries > last sysfs file: /sys/devices/system/cpu/cpu19/cache/index1/shared_cpu_map > Modules linked in: ipv6 fuse loop dm_mod sr_mod cdrom ibmveth sg > sd_mod crc_t10dif ibmvscsic scsi_transport_srp scsi_tgt scsi_mod > NIP: c00000000008d0f4 LR: c00000000008d0d0 CTR: 0000000000000000 > REGS: c00000010978f900 TRAP: 0600 Tainted: G W (2.6.35-rc3-git4-a utotest) > MSR: 8000000000009032 > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > Unrecoverable FP Unavailable Exception 800 at c000000000648ed4 > EE,ME,IR,DR> CR: 24022442 XER: 00000012 > DAR: c000000000648f54, DSISR: 0000000040010000 > TASK = c0000001096e4900[7353] 'fs_racer_file_s' THREAD: c00000010978c000 CPU: 10 > GPR00: 0000000000004000 c00000010978fb80 c000000000d3d798 0000000000000001 > GPR04: c00000000083539e c000000001610228 0000000000000000 c0000000054c6880 > GPR08: 00000000000006a5 c000000000648f54 0000000000000007 00000000049b0000 > GPR12: 0000000000000000 c00000000f601900 00000000ffffffff ffffffffffffffff > GPR16: 000000004b7dc520 0000000000000000 0000000000000000 c00000010978fea0 > GPR20: 00000fffcca7e7a0 00000fffcca7e7a0 00000fffabf7dfd0 00000fffabf7dfd0 > GPR24: 0000000000000000 0000000001200011 c000000000e1c0a8 c000000000648ed4 > GPR28: 0000000000000000 c0000001096e4900 c000000000ca0458 c00000010725d400 > NIP [c00000000008d0f4] .copy_process+0x310/0xf40 > LR [c00000000008d0d0] .copy_process+0x2ec/0xf40 > Call Trace: > [c00000010978fb80] [c00000000008d0d0] .copy_process+0x2ec/0xf40 (unreliable) > [c00000010978fc80] [c00000000008deb4] .do_fork+0x190/0x3cc > [c00000010978fdc0] [c000000000011ef4] .sys_clone+0x58/0x70 > [c00000010978fe30] [c0000000000087f0] .ppc_clone+0x8/0xc > Instruction dump: > 419e0010 7fe3fb78 480774cd 60000000 801f0014 e93f0008 7800b842 39290080 > 78004800 60000042 901f0014 38004000<7d6048a8> 7d6b0078 7d6049ad 40c2fff4 > > Kernel version 2.6.34-rc3-git3 works fine. Should this read 2.6.35-rc3-git3? If so, there's only about 20 commits in: 5904b3b81d2516..984bc9601f64fd The likely fs related candidates are from Christoph and Nick Piggin (added to CC) No commits relating to POWER6 or PPC. Mikey -- 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/