I'm still trying to get discard on ext4 and RAID5 to work reliably. I got a new hard lockup today: [506487.336582] ------------[ cut here ]------------ [506487.336591] WARNING: CPU: 4 PID: 22829 at /usr/local/src/linux-lts-trusty-3.13.0/kernel/watchdog.c:245 watchdog_overflow_callback+0x9a/0xc0() [506487.336592] Watchdog detected hard LOCKUP on cpu 4 [506487.336593] Modules linked in: ast gpio_ich ttm drm_kms_helper drm sysimgblt sysfillrect syscopyarea mei_me lpc_ich shpchp mei joydev ioatdma wmi ipmi_si acpi_power_meter acpi_pad mac_hid lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov hid_generic usbhid hid igb mpt3sas(OX) dca configfs i2c_algo_bit scsi_transport_sas ptp ahci libahci pps_core raid_class raid6_pq async_tx raid1 raid0 multipath linear [506487.336624] CPU: 4 PID: 22829 Comm: md3_raid5 Tainted: G IOX 3.13.0-43-generic #72~precise1 [506487.336626] Hardware name: Supermicro SYS-2028TP-HC1R/X10DRT-P, BIOS 1.0a 08/28/2014 [506487.336627] 00000000000000f5 ffff88103fc86ba8 ffffffff81757f91 0000000000000007 [506487.336631] ffff88103fc86bf8 ffff88103fc86be8 ffffffff8106afcc 0000000000000000 [506487.336634] ffff881028ca8000 0000000000000000 ffff88103fc86d18 0000000000000000 [506487.336637] Call Trace: [506487.336638] <NMI> [<ffffffff81757f91>] dump_stack+0x46/0x58 [506487.336649] [<ffffffff8106afcc>] warn_slowpath_common+0x8c/0xc0 [506487.336652] [<ffffffff8106b0b6>] warn_slowpath_fmt+0x46/0x50 [506487.336654] [<ffffffff811142aa>] watchdog_overflow_callback+0x9a/0xc0 [506487.336659] [<ffffffff8114ed08>] __perf_event_overflow+0x98/0x230 [506487.336664] [<ffffffff8102b188>] ? x86_perf_event_set_period+0xd8/0x150 [506487.336667] [<ffffffff8114f604>] perf_event_overflow+0x14/0x20 [506487.336671] [<ffffffff81032bc9>] intel_pmu_handle_irq+0x1d9/0x2d0 [506487.336675] [<ffffffff81193711>] ? unmap_kernel_range_noflush+0x11/0x20 [506487.336681] [<ffffffff8143df34>] ? ghes_copy_tofrom_phys+0x114/0x210 [506487.336685] [<ffffffff81766674>] perf_event_nmi_handler+0x34/0x60 [506487.336688] [<ffffffff81765dca>] nmi_handle.isra.3+0x8a/0x1a0 [506487.336690] [<ffffffff8143eff0>] ? ghes_print_estatus.constprop.10+0x70/0x70 [506487.336692] [<ffffffff81765fc8>] default_do_nmi+0x58/0x240 [506487.336695] [<ffffffff81766240>] do_nmi+0x90/0xd0 [506487.336697] [<ffffffff817651e1>] end_repeat_nmi+0x1e/0x2e [506487.336700] [<ffffffff817644c9>] ? _raw_spin_lock_irqsave+0x49/0x60 [506487.336702] [<ffffffff817644c9>] ? _raw_spin_lock_irqsave+0x49/0x60 [506487.336704] [<ffffffff817644c9>] ? _raw_spin_lock_irqsave+0x49/0x60 [506487.336705] <<EOE>> [<ffffffffa0142890>] release_inactive_stripe_list+0x50/0x160 [raid456] [506487.336714] [<ffffffffa014b12f>] handle_active_stripes.isra.38+0x7f/0x190 [raid456] [506487.336718] [<ffffffffa014b758>] raid5d+0x198/0x2f0 [raid456] [506487.336722] [<ffffffff815d30a7>] md_thread+0x117/0x150 [506487.336727] [<ffffffff810affe0>] ? __wake_up_sync+0x20/0x20 [506487.336729] [<ffffffff815d2f90>] ? md_rdev_init+0x110/0x110 [506487.336732] [<ffffffff8108fb59>] kthread+0xc9/0xe0 [506487.336735] [<ffffffff8108fa90>] ? flush_kthread_worker+0xb0/0xb0 [506487.336737] [<ffffffff8176d5bc>] ret_from_fork+0x7c/0xb0 [506487.336740] [<ffffffff8108fa90>] ? flush_kthread_worker+0xb0/0xb0 [506487.336741] ---[ end trace 4423aa98b23bcd0f ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
