https://bugzilla.kernel.org/show_bug.cgi?id=96921 Bug ID: 96921 Summary: NULL pointer dereference in lpfc_bus_reset_handler+0xd4/0x240 Product: SCSI Drivers Version: 2.5 Kernel Version: 3.11.10 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Other Assignee: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx Reporter: joachim.reichelt@xxxxxxxxxxxxxxxx Regression: No Server crashed. In messages.log I see: 2015-04-18T20:05:01.272964+02:00 nero /USR/SBIN/CRON[81116]: pam_unix(crond:session): session closed for user root 2015-04-18T20:05:07.198234+02:00 nero kernel: [1593664.788553] ch 8:0:5:2: timing out command, waited 120s 2015-04-18T20:05:14.296080+02:00 nero kernel: [1593671.881327] lpfc 0000:42:00.0: 2:(0):0713 SCSI layer issued Device Reset (8, 0) return x2002 2015-04-18T20:05:18.261089+02:00 nero kernel: [1593675.843025] lpfc 0000:42:00.0: 2:(0):0723 SCSI layer issued Target Reset (8, 0) return x2002 2015-04-18T20:05:18.310629+02:00 nero kernel: [1593675.845342] BUG: unable to handle kernel NULL pointer dereference at 000000000000003e 2015-04-18T20:05:18.310646+02:00 nero kernel: [1593675.845731] IP: [<ffffffffa006a624>] lpfc_bus_reset_handler+0xd4/0x240 [lpfc] 2015-04-18T20:05:18.310648+02:00 nero kernel: [1593675.846029] PGD 0 2015-04-18T20:05:18.310650+02:00 nero kernel: [1593675.846184] Oops: 0000 [#1] PREEMPT SMP 2015-04-18T20:05:18.310653+02:00 nero kernel: [1593675.846558] Modules linked in: efs loop binfmt_misc arc4 ecb md4 nls_utf8 cifs md5 nfsd nfs_acl auth_rpcgss oid_registry nfs fscache lockd sunrpc af_packet dcdbas iTCO_wdt gpio_ich iTCO_vendor_support xfs x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 pcspkr osst joydev nls_iso8859_1 nls_cp437 vfat fat ch st sb_edac edac_core lpc_ich mfd_core mei_me mei ntb bnx2x libcrc32c mdio shpchp wmi acpi_power_meter button mperf sg dm_mod autofs4 efivarfs mgag200 ttm drm_kms_helper drm i2c_algo_bit sysimgblt sysfillrect syscopyarea megaraid_sas processor thermal_sys scsi_dh_hp_sw scsi_dh_emc scsi_dh_rdac scsi_dh_alua scsi_dh lpfc scsi_transport_fc scsi_tgt 2015-04-18T20:05:18.310655+02:00 nero kernel: [1593675.854837] CPU: 1 PID: 804 Comm: scsi_eh_8 Not tainted 3.11.10-25-desktop #1 2015-04-18T20:05:18.310656+02:00 nero kernel: [1593675.854999] Hardware name: Dell Inc. PowerEdge R820/0YWR73, BIOS 2.0.20 01/16/2014 2015-04-18T20:05:18.310657+02:00 nero kernel: [1593675.855164] task: ffff883fa0edc580 ti: ffff883fa0ede000 task.ti: ffff883fa0ede000 2015-04-18T20:05:18.318691+02:00 nero kernel: [1593675.855323] RIP: 0010:[<ffffffffa006a624>] [<ffffffffa006a624>] lpfc_bus_reset_handler+0xd4/0x240 [lpfc] 2015-04-18T20:05:18.318797+02:00 nero kernel: [1593675.855600] RSP: 0018:ffff883fa0edfd70 EFLAGS: 00010082 2015-04-18T20:05:18.318803+02:00 nero kernel: [1593675.855736] RAX: 0000000000000009 RBX: 0000000000000000 RCX: 00000000000075ed 2015-04-18T20:05:18.318804+02:00 nero kernel: [1593675.855891] RDX: 00000000000075ed RSI: 0000000000000282 RDI: ffff883fa31cb050 2015-04-18T20:05:18.318805+02:00 nero kernel: [1593675.856046] RBP: ffff883fa31cb708 R08: ffff883fa0ede000 R09: 0000000000000001 2015-04-18T20:05:18.318806+02:00 nero kernel: [1593675.856202] R10: 0000000000000001 R11: 0000000000000004 R12: 0000000000000005 2015-04-18T20:05:18.318807+02:00 nero kernel: [1593675.856359] R13: 0000000000002002 R14: ffff883fa31cb6d8 R15: ffff883fa31cb000 2015-04-18T20:05:18.318808+02:00 nero kernel: [1593675.856521] FS: 0000000000000000(0000) GS:ffff88403fa00000(0000) knlGS:0000000000000000 2015-04-18T20:05:18.318809+02:00 nero kernel: [1593675.856689] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 2015-04-18T20:05:18.318810+02:00 nero kernel: [1593675.856830] CR2: 000000000000003e CR3: 0000000006c0e000 CR4: 00000000000407e0 2015-04-18T20:05:18.318812+02:00 nero kernel: [1593675.856994] Stack: 2015-04-18T20:05:18.318814+02:00 nero kernel: [1593675.857261] 0000020000000002 0000000000000020 a07d53fa90000010 a07d53fa90000020 2015-04-18T20:05:18.318816+02:00 nero kernel: [1593675.857690] 000000004d261684 ffff883fa31cb000 ffff8822d32818c0 ffffffffa00b1a00 2015-04-18T20:05:18.318817+02:00 nero kernel: [1593675.858125] ffff883fa0edca50 0000000000000000 ffff883fa0edfe78 ffffffff813d9a2a 2015-04-18T20:05:18.318818+02:00 nero kernel: [1593675.858542] Call Trace: 2015-04-18T20:05:18.318819+02:00 nero kernel: [1593675.858737] [<ffffffff813d9a2a>] scsi_try_bus_reset+0x3a/0x100 2015-04-18T20:05:18.318830+02:00 nero kernel: [1593675.858890] [<ffffffff813db2b1>] scsi_eh_ready_devs+0x4d1/0x8f0 2015-04-18T20:05:18.318833+02:00 nero kernel: [1593675.859040] [<ffffffff813dc5cd>] scsi_error_handler+0x53d/0x720 2015-04-18T20:05:18.318835+02:00 nero kernel: [1593675.859198] [<ffffffff81072c1f>] kthread+0xaf/0xc0 2015-04-18T20:05:18.318895+02:00 nero kernel: [1593675.859340] [<ffffffff815af3fc>] ret_from_fork+0x7c/0xb0 2015-04-18T20:05:18.318897+02:00 nero kernel: [1593675.859481] Code: 8b 7f 58 e8 5f de 53 e1 49 8b 9f 08 07 00 00 48 39 dd 75 17 e9 56 01 00 00 66 0f 1f 44 00 00 48 8b 1b 48 39 dd 0f 84 44 01 00 00 <0f> b7 43 3e 83 e0 09 66 83 f8 01 75 e7 49 8b 87 d8 06 00 00 8b 2015-04-18T20:05:18.318899+02:00 nero kernel: [1593675.865079] RIP [<ffffffffa006a624>] lpfc_bus_reset_handler+0xd4/0x240 [lpfc] 2015-04-18T20:05:18.323247+02:00 nero kernel: [1593675.865336] RSP <ffff883fa0edfd70> 2015-04-18T20:05:18.323342+02:00 nero kernel: [1593675.865456] CR2: 000000000000003e 2015-04-18T20:05:18.323346+02:00 nero kernel: [1593675.889482] ---[ end trace ac970d32fddfb4ae ]--- 2015-04-18T20:05:18.323348+02:00 nero kernel: [1593675.893079] note: scsi_eh_8[804] exited with preempt_count 1 -- 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
