From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932492AbcE2SCS (ORCPT ); Sun, 29 May 2016 14:02:18 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:44996 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932282AbcE2SCR (ORCPT ); Sun, 29 May 2016 14:02:17 -0400 Subject: Re: [GIT PULL] first round of SCSI updates for the 4.6+ merge window To: James Bottomley , Andrew Morton , Linus Torvalds References: <1463570346.27423.2.camel@HansenPartnership.com> Cc: linux-scsi , linux-kernel From: Sasha Levin Message-ID: <574B2EA1.9080006@oracle.com> Date: Sun, 29 May 2016 14:02:09 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <1463570346.27423.2.camel@HansenPartnership.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, On 05/18/2016 07:19 AM, James Bottomley wrote: > Douglas Gilbert (13): > scsi_debug: use locally assigned naa > scsi_debug: uuid for lu name > scsi_debug: vpd and mode page work > scsi_debug: add multiple queue support > scsi_debug: rework resp_report_luns The commit above seems to be causing the following: [ 784.130990] BUG: sleeping function called from invalid context at mm/slab.h:388 [ 784.131073] in_atomic(): 1, irqs_disabled(): 0, pid: 21582, name: syz-executor [ 784.131216] Preemption disabled blk_mq_insert_request (block/blk-mq.h:89 block/blk-mq.c:1010) [ 784.131252] [ 784.131292] CPU: 4 PID: 21582 Comm: syz-executor Tainted: G B 4.6.0-next-20160527-sasha-00024-g6ab0dc9-dirty #3098 [ 784.131336] 1ffff100369e8e06 0000000085bb6488 ffff8801b4f470b8 ffffffffa0fd0b37 [ 784.131367] ffffffff00000004 fffffbfff57eeda4 0000000041b58ab3 ffffffffab8dd830 [ 784.131391] ffffffffa0fd09c8 ffff8801b4f47060 ffffffff9f53ef7a 00007f4739889c18 [ 784.131396] Call Trace: [ 784.131443] dump_stack (lib/dump_stack.c:53) [ 784.131609] ___might_sleep (kernel/sched/core.c:7554) [ 784.131637] __might_sleep (kernel/sched/core.c:7516 (discriminator 14)) [ 784.131706] kmem_cache_alloc_node (mm/slab.h:390 mm/slub.c:2498 mm/slub.c:2608) [ 784.131761] __get_vm_area_node (include/linux/slab.h:390 include/linux/slab.h:516 include/linux/slab.h:633 mm/vmalloc.c:1370) [ 784.131778] __vmalloc_node_range (mm/vmalloc.c:1688) [ 784.131941] vmalloc (mm/vmalloc.c:1766) [ 784.131974] resp_report_luns (drivers/scsi/scsi_debug.c:3335) [ 784.132010] scsi_debug_queuecommand (drivers/scsi/scsi_debug.c:5362) [ 784.132109] scsi_dispatch_cmd (drivers/scsi/scsi_lib.c:1635) [ 784.132125] scsi_queue_rq (drivers/scsi/scsi_lib.c:1924) [ 784.132185] __blk_mq_run_hw_queue (block/blk-mq.c:784) [ 784.132315] blk_mq_run_hw_queue (block/blk-mq.c:874) [ 784.132340] blk_mq_insert_request (block/blk-mq.h:94 block/blk-mq.c:1023) [ 784.132359] blk_execute_rq_nowait (block/blk-exec.c:69) [ 784.132390] sg_common_write.isra.5 (drivers/scsi/sg.c:812) [ 784.132490] sg_write (drivers/scsi/sg.c:687) [ 784.132679] __vfs_write (fs/read_write.c:514) [ 784.132815] vfs_write (fs/read_write.c:565) [ 784.132830] SyS_write (fs/read_write.c:612 fs/read_write.c:603) [ 784.132929] do_syscall_64 (arch/x86/entry/common.c:350) [ 784.132947] entry_SYSCALL64_slow_path (arch/x86/entry/entry_64.S:251) Thanks, Sasha