From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754689Ab1HQV6s (ORCPT ); Wed, 17 Aug 2011 17:58:48 -0400 Received: from mail.microway.com ([206.173.81.22]:39329 "EHLO microway.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751956Ab1HQV6q (ORCPT ); Wed, 17 Aug 2011 17:58:46 -0400 X-Greylist: delayed 412 seconds by postgrey-1.27 at vger.kernel.org; Wed, 17 Aug 2011 17:58:46 EDT From: Rick Warner Organization: Microway, Inc To: linux-kernel@vger.kernel.org Subject: kernel oops and panic in acpi_atomic_read under 2.6.39.3. call trace included Date: Wed, 17 Aug 2011 17:51:51 -0400 User-Agent: KMail/1.13.7 (Linux/2.6.39-gentoo-r3-herp; KDE/4.6.3; x86_64; ; ) Cc: Richard Houghton Message-Id: <201108171751.51648.rick@microway.com> X-Sanitizer: Advosys mail filter MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I am getting a kernel oops/panic on a dual xeon system that is the master of a 60 node HPC cluster. This is happening while stress testing the system including significant network traffic. The OS is openSuse 11.4. We are running a custom compiled 2.6.39.3 kernel on the systems due to a bug in the stock kernel 11.4 provided (igb driver related). After 1-3 days of heavy testing, the master node locks up with the caps lock and scroll lock keys on the keyboard blinking with the following output captured via a serial console: [381920.681113] BUG: unable to handle kernel NULL pointer dereference at (null) [381920.689067] IP: [] acpi_atomic_read+0xe3/0x120 [381920.695187] PGD 30c27a067 PUD 16efe6067 PMD 0 [381920.699782] Oops: 0000 [#1] PREEMPT SMP [381920.703866] last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map [381920.711868] CPU 6 [381920.713800] Modules linked in: md5 ipmi_devintf ipmi_si ipmi_msghandler nfsd lockd nfs_acl auth_rpcgss sunrpc ipt_MASQUERADE iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables af_packet edd cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf xfs dm_mod ioatdma i7core_edac edac_core sr_mod cdrom joydev igb i2c_i801 sg button ghes hed iTCO_wdt iTCO_vendor_support dca pcspkr ext4 jbd2 crc16 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid1 raid0 fan processor thermal thermal_sys ata_generic pata_atiixp arcmsr [381920.771623] [381920.773210] Pid: 12701, comm: cluster Not tainted 2.6.39.3-microwaycustom #1 Supermicro X8DTH-i/6/iF/6F/X8DTH [381920.783292] RIP: 0010:[] [] acpi_atomic_read+0xe3/0x120 [381920.791853] RSP: 0000:ffff88063fc47d98 EFLAGS: 00010046 [381920.797260] RAX: 0000000000000000 RBX: 00000000bf7b5ff0 RCX: ffffffff81a3cdd0 [381920.804486] RDX: 00000000bf7b6010 RSI: 00000000bf7b6000 RDI: ffff88062d4b95c0 [381920.811712] RBP: ffff88063fc47dc8 R08: ffff88063fc47d98 R09: 0000000000000002 [381920.818940] R10: 0000000000000083 R11: 0000000000000010 R12: ffffc90003044c20 [381920.826168] R13: ffff88063fc47de0 R14: 0000000000000000 R15: 0000000000000000 [381920.833392] FS: 0000000000000000(0000) GS:ffff88063fc40000(0000) knlGS:0000000000000000 [381920.841571] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [381920.847409] CR2: 0000000000000000 CR3: 00000001d2d0f000 CR4: 00000000000006e0 [381920.854635] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [381920.861861] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [381920.869088] Process cluster (pid: 12701, threadinfo ffff880028284000, task ffff880550184380) [381920.877608] Stack: [381920.879717] ffffffff81a3cdd0 00000000bf7b5ff0 ffff88062b2cc140 ffffc90003044ca8 [381920.887288] ffff88062b2cc140 0000000000000001 ffff88063fc47e08 ffffffffa002b21f [381920.894862] 0000000000000000 0000000000000000 ffff88062b2cc140 0000000000000000 [381920.902435] Call Trace: [381920.904969] [381920.907201] [] ghes_read_estatus+0x2f/0x170 [ghes] [381920.913726] [] ghes_notify_nmi+0xd8/0x1b0 [ghes] [381920.920076] [] notifier_call_chain+0x3f/0x80 [381920.926080] [] __atomic_notifier_call_chain+0x48/0x70 [381920.932864] [] atomic_notifier_call_chain+0x11/0x20 [381920.939473] [] notify_die+0x2e/0x30 [381920.944691] [] do_nmi+0xa2/0x270 [381920.949649] [] nmi+0x20/0x30 [381920.954269] [] ? native_write_msr_safe+0xa/0x10 [381920.960536] <> [381920.962725] [381920.965132] [] intel_pmu_disable_all+0x3e/0x120 [381920.971399] [] x86_pmu_disable+0x4a/0x50 [381920.977066] [] perf_pmu_disable+0x2b/0x40 [381920.982817] [] perf_event_task_tick+0x218/0x270 [381920.989082] [] scheduler_tick+0xdd/0x2c0 [381920.994740] [] update_process_times+0x67/0x80 [381921.000832] [] tick_sched_timer+0x5f/0xc0 [381921.006578] [] ? tick_nohz_handler+0x100/0x100 [381921.012758] [] __run_hrtimer+0x12d/0x280 [381921.018414] [] hrtimer_interrupt+0xb7/0x1e0 [381921.024343] [] smp_apic_timer_interrupt+0x67/0xa0 [381921.030793] [] apic_timer_interrupt+0x13/0x20 [381921.036891] [381921.038913] Code: fc 10 74 1f 77 08 41 80 fc 08 75 48 eb 0e 41 80 fc 20 74 17 41 80 fc 40 75 3a eb 15 8a 00 0f b6 c0 eb 11 66 8b 00 0f b7 c0 eb 09 <8b> 00 89 c0 eb 03 48 8b 00 49 89 45 00 e8 8e 2b e2 ff eb 1b 0f [381921.059462] RIP [] acpi_atomic_read+0xe3/0x120 [381921.065669] RSP [381921.069242] CR2: 0000000000000000 [381921.072645] ---[ end trace 52697bfc73a34a90 ]--- [381921.077343] Kernel panic - not syncing: Fatal exception in interrupt [381921.083784] Pid: 12701, comm: cluster Tainted: G D 2.6.39.3- microwaycustom #1 [381921.091788] Call Trace: [381921.094333] [] panic+0x9f/0x1da [381921.099881] [] oops_end+0xdc/0xf0 [381921.104952] [] no_context+0xf1/0x260 [381921.110277] [] __bad_area_nosemaphore+0x155/0x200 [381921.116739] [] bad_area_nosemaphore+0xe/0x10 [381921.122766] [] do_page_fault+0x366/0x530 [381921.128440] [] ? __perf_event_overflow+0xa9/0x220 [381921.134896] [] ? perf_event_update_userpage+0x9b/0xe0 [381921.141698] [] ? intel_pmu_enable_all+0xc9/0x1a0 [381921.148061] [] ? x86_perf_event_set_period+0xdf/0x170 [381921.154852] [] page_fault+0x25/0x30 [381921.160081] [] ? acpi_atomic_read+0xe3/0x120 [381921.166094] [] ? acpi_atomic_read+0x59/0x120 [381921.172107] [] ghes_read_estatus+0x2f/0x170 [ghes] [381921.178639] [] ghes_notify_nmi+0xd8/0x1b0 [ghes] [381921.185004] [] notifier_call_chain+0x3f/0x80 [381921.191003] [] __atomic_notifier_call_chain+0x48/0x70 [381921.197789] [] atomic_notifier_call_chain+0x11/0x20 [381921.204399] [] notify_die+0x2e/0x30 [381921.209624] [] do_nmi+0xa2/0x270 [381921.214584] [] nmi+0x20/0x30 [381921.219208] [] ? native_write_msr_safe+0xa/0x10 [381921.225470] <> [] intel_pmu_disable_all+0x3e/0x120 [381921.233174] [] x86_pmu_disable+0x4a/0x50 [381921.238836] [] perf_pmu_disable+0x2b/0x40 [381921.244582] [] perf_event_task_tick+0x218/0x270 [381921.250855] [] scheduler_tick+0xdd/0x2c0 [381921.256520] [] update_process_times+0x67/0x80 [381921.262618] [] tick_sched_timer+0x5f/0xc0 [381921.268363] [] ? tick_nohz_handler+0x100/0x100 [381921.274540] [] __run_hrtimer+0x12d/0x280 [381921.280198] [] hrtimer_interrupt+0xb7/0x1e0 [381921.286125] [] smp_apic_timer_interrupt+0x67/0xa0 [381921.292578] [] apic_timer_interrupt+0x13/0x20 [381921.298673] I recompiled the kernel again, disabling the tickless feature as I saw "nohz" early in the call trace. After that, it reproduced again but the call trace only changed slightly having tick_init_highres in there instead of tick_nohz_handler. I have that call trace if it is desired as well. It is nearly identical though. I am currently trying a custom 2.6.36.4 on the system, but will need up to 3 days before I know if the problem exists there as well. Any ideas on this? Thanks, Rick -- Richard Warner Lead Systems Integrator Microway, Inc (508)732-5517