From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 101891] New: mvsas prep failed, NULL pointer dereference in mvs_slot_task_free+0x5/0x1f0 [mvsas] Date: Thu, 23 Jul 2015 21:34:36 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org ([198.145.29.136]:41917 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753682AbbGWVel (ORCPT ); Thu, 23 Jul 2015 17:34:41 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A868520698 for ; Thu, 23 Jul 2015 21:34:40 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id 1858C206AD for ; Thu, 23 Jul 2015 21:34:37 +0000 (UTC) Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org 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@kernel-bugs.osdl.org Reporter: davispuh@gmail.com 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: [] 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:[] [] 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: [] ? mvs_abort_task+0x1ce/0x230 [mvsas] kernel: [] sas_scsi_recover_host+0x47b/0xc20 [libsas] kernel: [] scsi_error_handler+0xfc/0x580 [scsi_mod] kernel: [] ? __schedule+0x362/0xa30 kernel: [] ? scsi_eh_get_sense+0x190/0x190 [scsi_mod] kernel: [] kthread+0xd8/0xf0 kernel: [] ? kthread_worker_fn+0x170/0x170 kernel: [] ret_from_fork+0x42/0x70 kernel: [] ? 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 [] mvs_slot_task_free+0x5/0x1f0 [mvsas] kernel: RSP kernel: CR2: 0000000000000010 kernel: ---[ end trace 18b7a6f928680374 ]--- -- You are receiving this mail because: You are watching the assignee of the bug.