From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xXgT32drCzDrJh for ; Thu, 17 Aug 2017 06:10:47 +1000 (AEST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7GK8vac032055 for ; Wed, 16 Aug 2017 16:10:45 -0400 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ccnyfrp2c-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 16 Aug 2017 16:10:44 -0400 Received: from localhost by e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 16 Aug 2017 16:10:43 -0400 Subject: Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue+0x1d8/0x1f0 To: Bart Van Assche , "linuxppc-dev@lists.ozlabs.org" , "abdhalee@linux.vnet.ibm.com" Cc: "sachinp@linux.vnet.ibm.com" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "brking@us.ibm.com" , "sfr@canb.auug.org.au" , "axboe@kernel.dk" References: <1502906852.3305.33.camel@abdul.in.ibm.com> <1502907345.2421.8.camel@wdc.com> From: Brian King Date: Wed, 16 Aug 2017 15:10:39 -0500 MIME-Version: 1.0 In-Reply-To: <1502907345.2421.8.camel@wdc.com> Content-Type: text/plain; charset=utf-8 Message-Id: <4fe35be3-c631-e4ed-a135-110e536823bc@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/16/2017 01:15 PM, Bart Van Assche wrote: > On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote: >> Linux-next booted with the below warnings on powerpc >> >> [ ... ] >> >> boot warnings: >> -------------- >> kvm: exiting hardware virtualization >> ------------[ cut here ]------------ >> WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue >> +0x1d8/0x1f0 >> Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 >> Call Trace: >> [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue >> +0x1f0/0x210 >> [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80 >> [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0 >> [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0 >> [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660 >> [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0 >> [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60 >> [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0 >> [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170 >> [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160 >> [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0 >> [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350 >> [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0 >> [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620 >> [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290 >> [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410 >> [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24 >> [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190 >> [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common >> +0x158/0x160 > > Hello Brian, > > In the MAINTAINERS file I found the following: > > IBM Power Linux RAID adapter > M: Brian King > S: Supported > F: drivers/scsi/ipr.* > > Is that information up-to-date? Do you agree that the above message indicates > a bug in the ipr driver? Yes. Can you try with this patch that is in 4.13/scsi-fixes: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.13/scsi-fixes&id=b0e17a9b0df29590c45dfb296f541270a5941f41 Thanks, Brian -- Brian King Power Linux I/O IBM Linux Technology Center