https://bugzilla.kernel.org/show_bug.cgi?id=101891 Bug ID: 101891 Summary: mvsas prep failed, NULL pointer dereference in mvs_slot_task_free+0x5/0x1f0 [mvsas] Product: SCSI Drivers Version: 2.5 Kernel Version: 4.1.2 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Other Assignee: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx Reporter: davispuh@xxxxxxxxx Regression: No Got this call trace, it caused any attempts to access those disks hang (couldn't even kill those processes, eg. ls). Using HighPoint RocketRAID 2760A controller. kernel: mvsas 0000:07:00.0: mvsas prep failed[0]! kernel: sas: Enter sas_scsi_recover_host busy: 1 failed: 1 kernel: sas: trying to find task 0xffff880213ac6a00 kernel: sas: sas_scsi_find_task: aborting task 0xffff880213ac6a00 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 kernel: IP: [<ffffffffa020dfa5>] mvs_slot_task_free+0x5/0x1f0 [mvsas] kernel: PGD 1ee973067 PUD 1ee974067 PMD 0 kernel: Oops: 0000 [#1] PREEMPT SMP kernel: Modules linked in: fuse nf_conntrack_netbios_ns nf_conntrack_broadcast xt_tcpudp ip6t_rpfilter ip kernel: aesni_intel rc_core snd_hda_codec_realtek aes_x86_64 lrw gf128mul videobuf2_dma_sg glue_helper a kernel: CPU: 3 PID: 227 Comm: scsi_eh_7 Tainted: P O 4.1.2-2-ARCH #1 kernel: Hardware name: Gigabyte Technology Co., Ltd. GA-990FXA-UD3/GA-990FXA-UD3, BIOS FFe 11/08/2013 kernel: task: ffff88007f849e90 ti: ffff880223184000 task.ti: ffff880223184000 kernel: RIP: 0010:[<ffffffffa020dfa5>] [<ffffffffa020dfa5>] mvs_slot_task_free+0x5/0x1f0 [mvsas] kernel: RSP: 0018:ffff880223187d00 EFLAGS: 00010a13 kernel: RAX: 2e8ba2e8ba2e8ba3 RBX: ffff880213ac6a00 RCX: a2e8bb8b9cb3907b kernel: RDX: 0000000000000000 RSI: ffff880213ac6a00 RDI: ffff880222440000 kernel: RBP: ffff880223187d58 R08: 000000000000000a R09: 0000000000000607 kernel: R10: 00000000000213fc R11: 0000000000000607 R12: 0000000000000005 kernel: R13: ffff880222a59000 R14: ffff880222440000 R15: ffff880213ac6a08 kernel: FS: 00007fdddc839880(0000) GS:ffff88022ecc0000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b kernel: CR2: 0000000000000010 CR3: 00000001ee978000 CR4: 00000000000407e0 kernel: Stack: kernel: ffffffffa0210bde ffff880200000018 ffff880223187d68 ffff880223187d28 kernel: 00000000a5257e12 ffff88007f840208 0000000000000005 ffff880223187db0 kernel: ffff880213ac6a08 ffff8802230ef000 ffff880213ac6a00 ffff880223187e28 kernel: Call Trace: kernel: [<ffffffffa0210bde>] ? mvs_abort_task+0x1ce/0x230 [mvsas] kernel: [<ffffffffa0119eab>] sas_scsi_recover_host+0x47b/0xc20 [libsas] kernel: [<ffffffffa0083afc>] scsi_error_handler+0xfc/0x580 [scsi_mod] kernel: [<ffffffff81587212>] ? __schedule+0x362/0xa30 kernel: [<ffffffffa0083a00>] ? scsi_eh_get_sense+0x190/0x190 [scsi_mod] kernel: [<ffffffff810977f8>] kthread+0xd8/0xf0 kernel: [<ffffffff81097720>] ? kthread_worker_fn+0x170/0x170 kernel: [<ffffffff8158b962>] ret_from_fork+0x42/0x70 kernel: [<ffffffff81097720>] ? kthread_worker_fn+0x170/0x170 kernel: Code: 84 00 00 00 00 00 66 66 66 66 90 55 48 8b 87 b0 00 00 00 89 f6 48 89 e5 f0 48 0f b3 30 5d c kernel: RIP [<ffffffffa020dfa5>] mvs_slot_task_free+0x5/0x1f0 [mvsas] kernel: RSP <ffff880223187d00> kernel: CR2: 0000000000000010 kernel: ---[ end trace 18b7a6f928680374 ]--- -- 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
