https://bugzilla.kernel.org/show_bug.cgi?id=81861 --- Comment #3 from linux-ide@xxxxxxxxxxxxx --- Because Ubuntu doesn't provide debug symbols for their mainline kernel builds <http://comments.gmane.org/gmane.linux.ubuntu.devel.kernel.general/40661> I am reverting back to their kernel version 3.13.0-24.46 That results in a kernel crash on port 8C: BUG: unable to handle kernel NULL pointer dereference at 0000000000000255 Full output: [ 25.212661] mvsas 0000:01:00.0: mvsas: driver version 0.8.16 [ 25.212703] mvsas 0000:01:00.0: enabling device (0000 -> 0002) [ 25.213249] mvsas 0000:01:00.0: mvsas: PCI-E x8, Bandwidth Usage: 5.0 Gbps [ 31.994771] scsi5 : mvsas [ 31.995530] sas: phy-5:0 added to port-5:0, phy_mask:0x1 (50014380182cf0e6) [ 31.995564] /build/buildd/linux-3.13.0/drivers/scsi/mvsas/mv_sas.c 1218:set wide port phy map 1 [ 32.005672] sas: phy1 matched wide port0 [ 32.005695] sas: phy-5:1 added to port-5:0, phy_mask:0x3 (50014380182cf0e6) [ 32.005720] /build/buildd/linux-3.13.0/drivers/scsi/mvsas/mv_sas.c 1218:set wide port phy map 3 [ 32.025591] sas: phy2 matched wide port0 [ 32.025611] sas: phy-5:2 added to port-5:0, phy_mask:0x7 (50014380182cf0e6) [ 32.025635] /build/buildd/linux-3.13.0/drivers/scsi/mvsas/mv_sas.c 1218:set wide port phy map 7 [ 32.055410] sas: phy3 matched wide port0 [ 32.055427] sas: phy-5:3 added to port-5:0, phy_mask:0xf (50014380182cf0e6) [ 32.055452] /build/buildd/linux-3.13.0/drivers/scsi/mvsas/mv_sas.c 1218:set wide port phy map f [ 32.095144] sas: DOING DISCOVERY on port 0, pid:127 [ 32.096843] sas: ex 50014380182cf0e6 phy00:D:0 attached: 0000000000000000 (no device) [ 32.097408] sas: ex 50014380182cf0e6 phy01:D:0 attached: 0000000000000000 (no device) [ 32.097917] sas: ex 50014380182cf0e6 phy02:D:0 attached: 0000000000000000 (no device) [ 32.098503] sas: ex 50014380182cf0e6 phy03:D:0 attached: 0000000000000000 (no device) [ 32.099044] sas: ex 50014380182cf0e6 phy04:D:0 attached: 0000000000000000 (no device) [ 32.099628] sas: ex 50014380182cf0e6 phy05:D:0 attached: 0000000000000000 (no device) [ 32.100205] sas: ex 50014380182cf0e6 phy06:D:0 attached: 0000000000000000 (no device) [ 32.100739] sas: ex 50014380182cf0e6 phy07:D:0 attached: 0000000000000000 (no device) [ 32.101310] sas: ex 50014380182cf0e6 phy08:D:0 attached: 0000000000000000 (no device) [ 32.101840] sas: ex 50014380182cf0e6 phy09:D:0 attached: 0000000000000000 (no device) [ 32.102412] sas: ex 50014380182cf0e6 phy10:D:0 attached: 0000000000000000 (no device) [ 32.102959] sas: ex 50014380182cf0e6 phy11:D:0 attached: 0000000000000000 (no device) [ 32.103545] sas: ex 50014380182cf0e6 phy12:D:0 attached: 0000000000000000 (no device) [ 32.104128] sas: ex 50014380182cf0e6 phy13:D:0 attached: 0000000000000000 (no device) [ 32.104661] sas: ex 50014380182cf0e6 phy14:D:0 attached: 0000000000000000 (no device) [ 32.105273] sas: ex 50014380182cf0e6 phy15:D:0 attached: 0000000000000000 (no device) [ 32.105781] sas: ex 50014380182cf0e6 phy16:D:0 attached: 0000000000000000 (no device) [ 32.106385] sas: ex 50014380182cf0e6 phy17:D:0 attached: 0000000000000000 (no device) [ 32.106904] sas: ex 50014380182cf0e6 phy18:D:0 attached: 0000000000000000 (no device) [ 32.107486] sas: ex 50014380182cf0e6 phy19:D:0 attached: 0000000000000000 (no device) [ 32.108020] sas: ex 50014380182cf0e6 phy20:D:0 attached: 0000000000000000 (no device) [ 32.108605] sas: ex 50014380182cf0e6 phy21:D:0 attached: 0000000000000000 (no device) [ 32.109183] sas: ex 50014380182cf0e6 phy22:D:0 attached: 0000000000000000 (no device) [ 32.109714] sas: ex 50014380182cf0e6 phy23:D:0 attached: 0000000000000000 (no device) [ 32.110357] sas: ex 50014380182cf0e6 phy24:U:A attached: 5005043011ab0000 (host) [ 32.110929] sas: ex 50014380182cf0e6 phy25:U:A attached: 5005043011ab0000 (host) [ 32.111558] sas: ex 50014380182cf0e6 phy26:U:A attached: 5005043011ab0000 (host) [ 32.112181] sas: ex 50014380182cf0e6 phy27:U:A attached: 5005043011ab0000 (host) [ 32.112774] sas: ex 50014380182cf0e6 phy28:S:9 attached: 50014380182cf0dc (stp) [ 32.113366] sas: ex 50014380182cf0e6 phy29:S:9 attached: 50014380182cf0dd (stp) [ 32.113934] sas: ex 50014380182cf0e6 phy30:S:9 attached: 50014380182cf0de (stp) [ 32.114557] sas: ex 50014380182cf0e6 phy31:S:9 attached: 50014380182cf0df (stp) [ 32.115138] sas: ex 50014380182cf0e6 phy32:S:0 attached: 0000000000000000 (no device) [ 32.115654] sas: ex 50014380182cf0e6 phy33:S:0 attached: 0000000000000000 (no device) [ 32.116198] sas: ex 50014380182cf0e6 phy34:S:0 attached: 0000000000000000 (no device) [ 32.116711] sas: ex 50014380182cf0e6 phy35:S:0 attached: 0000000000000000 (no device) [ 32.117003] sas: ex 50014380182cf0e6 phy36:D:A attached: 50014380182cf0e5 (host+target) [ 32.118398] sas: DONE DISCOVERY on port 0, pid:127, result:0 [ 32.118435] sas: Enter sas_scsi_recover_host busy: 0 failed: 0 [ 32.118465] sas: ata6: end_device-5:0:28: dev error handler [ 32.119140] sas: ata7: end_device-5:0:29: dev error handler [ 32.119333] sas: ata8: end_device-5:0:30: dev error handler [ 32.119368] sas: ata9: end_device-5:0:31: dev error handler [ 32.271218] BUG: unable to handle kernel NULL pointer dereference at 0000000000000255 [ 32.271791] IP: [<ffffffffa02d381e>] mvs_task_prep+0x72e/0xd50 [mvsas] [ 32.272365] PGD 0 [ 32.272928] Oops: 0000 [#1] SMP [ 32.273480] Modules linked in: mvsas libsas scsi_transport_sas hid_generic usbhid hid x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel cryptd i915 drm_kms_helper serio_raw lpc_ich mei_me mei drm i2c_algo_bit netconsole configfs lp parport video mac_hid psmouse ahci libahci r8169 mii [ 32.275388] CPU: 0 PID: 54 Comm: kworker/u4:1 Not tainted 3.13.0-24-generic #47-Ubuntu [ 32.276028] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H81 Pro BTC, BIOS P1.80 07/21/2014 [ 32.276745] Workqueue: events_unbound async_run_entry_fn [ 32.277389] task: ffff88020fe6afe0 ti: ffff8802136aa000 task.ti: ffff8802136aa000 [ 32.278032] RIP: 0010:[<ffffffffa02d381e>] [<ffffffffa02d381e>] mvs_task_prep+0x72e/0xd50 [mvsas] [ 32.278691] RSP: 0018:ffff8802136ab8c0 EFLAGS: 00010097 [ 32.279337] RAX: 000000000000002c RBX: 0000000000000001 RCX: 0000000000000000 [ 32.279980] RDX: 0000000000000000 RSI: ffff8800d8c255b8 RDI: ffff8800d8c00000 [ 32.280619] RBP: ffff8802136ab958 R08: ffff8800d8c03618 R09: ffff8800363a0000 [ 32.281246] R10: ffff880212977600 R11: 0000000000000000 R12: ffff8800d8c00000 [ 32.281861] R13: 0000000000000000 R14: ffff8800d8c03618 R15: ffff88020f8dedc0 [ 32.282474] FS: 0000000000000000(0000) GS:ffff88021f200000(0000) knlGS:0000000000000000 [ 32.283082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.283679] CR2: 0000000000000255 CR3: 0000000002c0e000 CR4: 00000000000407f0 [ 32.284278] Stack: [ 32.284880] ffff88020fe6afe0 ffff880212977200 ffff8802136ab8e0 ffffffff81719ee9 [ 32.285520] ffff880212977600 ffff8800363a0000 ffff8800d8c03618 ffff8800d8c255b0 [ 32.286167] ffff8800d8c02678 0000000000000000 00000001d8c00008 ffff8800d8c255b8 [ 32.286821] Call Trace: [ 32.287473] [<ffffffff81719ee9>] ? schedule+0x29/0x70 [ 32.288144] [<ffffffffa02d3e9d>] mvs_task_exec.isra.13+0x5d/0xe0 [mvsas] [ 32.288832] [<ffffffffa02d49dc>] mvs_queue_command+0x30c/0x320 [mvsas] [ 32.289530] [<ffffffff811a013f>] ? kmem_cache_free+0xef/0x120 [ 32.290232] [<ffffffff8119f692>] ? kmem_cache_alloc+0x132/0x140 [ 32.290942] [<ffffffffa028601d>] ? sas_alloc_task+0x1d/0x40 [libsas] [ 32.291662] [<ffffffffa028fcab>] sas_ata_qc_issue+0x24b/0x290 [libsas] [ 32.292392] [<ffffffff814f7762>] ata_qc_issue+0x172/0x380 [ 32.293128] [<ffffffff814f7c23>] ata_exec_internal_sg+0x2b3/0x570 [ 32.293875] [<ffffffff814f7f3a>] ata_exec_internal+0x5a/0xa0 [ 32.294624] [<ffffffff814f8334>] ata_dev_read_id+0x274/0x550 [ 32.295380] [<ffffffffa028f8f0>] ? sas_ata_printk+0x80/0x80 [libsas] [ 32.296148] [<ffffffff81505bab>] ata_eh_recover+0x74b/0x1310 [ 32.296923] [<ffffffff810bcfe8>] ? console_unlock+0x208/0x400 [ 32.297707] [<ffffffff814facd0>] ? ata_phys_link_online+0x30/0x30 [ 32.298503] [<ffffffffa028f8f0>] ? sas_ata_printk+0x80/0x80 [libsas] [ 32.299367] [<ffffffff814fae50>] ? ata_phys_link_offline+0x30/0x30 [ 32.300179] [<ffffffffa028f8f0>] ? sas_ata_printk+0x80/0x80 [libsas] [ 32.301001] [<ffffffff814fae50>] ? ata_phys_link_offline+0x30/0x30 [ 32.301826] [<ffffffffa028f8f0>] ? sas_ata_printk+0x80/0x80 [libsas] [ 32.302661] [<ffffffff81507299>] ata_do_eh+0x49/0xc0 [ 32.303503] [<ffffffff814facd0>] ? ata_phys_link_online+0x30/0x30 [ 32.304357] [<ffffffff8150734e>] ata_std_error_handler+0x3e/0x80 [ 32.305215] [<ffffffff81506dba>] ata_scsi_port_error_handler+0x56a/0x940 [ 32.306086] [<ffffffffa02900aa>] async_sas_ata_eh+0x4a/0x80 [libsas] [ 32.306963] [<ffffffff81091517>] async_run_entry_fn+0x37/0x130 [ 32.307849] [<ffffffff810838a2>] process_one_work+0x182/0x450 [ 32.308735] [<ffffffff81084641>] worker_thread+0x121/0x410 [ 32.309629] [<ffffffff81084520>] ? rescuer_thread+0x3e0/0x3e0 [ 32.310530] [<ffffffff8108b312>] kthread+0xd2/0xf0 [ 32.311437] [<ffffffff8108b240>] ? kthread_create_on_node+0x1d0/0x1d0 [ 32.312351] [<ffffffff817263fc>] ret_from_fork+0x7c/0xb0 [ 32.313255] [<ffffffff8108b240>] ? kthread_create_on_node+0x1d0/0x1d0 [ 32.314160] Code: 63 92 a0 02 00 00 41 80 b8 84 00 00 00 7f 48 8b 80 58 01 00 00 48 8b 1c d0 0f 84 a0 05 00 00 41 8b 44 24 58 48 8b 75 c0 89 46 1c <8b> 8b 54 02 00 00 be 00 10 00 00 41 8b 54 24 58 49 8b 44 24 48 [ 32.316308] RIP [<ffffffffa02d381e>] mvs_task_prep+0x72e/0xd50 [mvsas] [ 32.317292] RSP <ffff8802136ab8c0> [ 32.318278] CR2: 0000000000000255 -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
