From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id CE9571A0743 for ; Wed, 14 Oct 2015 03:47:05 +1100 (AEDT) From: Jeff Moyer To: Raghavendra K T Cc: , , , , , Subject: Re: [PATCH] block-mq:Fix the null memory access while setting tags cpumask References: <1444713927-16261-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com> Date: Tue, 13 Oct 2015 12:47:00 -0400 In-Reply-To: <1444713927-16261-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com> (Raghavendra K. T.'s message of "Tue, 13 Oct 2015 10:55:27 +0530") Message-ID: MIME-Version: 1.0 Content-Type: text/plain List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Raghavendra K T writes: > In nr_hw_queues >1 cases when certain number of cpus are onlined/or > offlined, that results change in request_queue map in block-mq layer, > we see the kernel dumping like: What version is that patch against? This problem should be fixed by the patch set from Akinobu Mita. I tested cpu hot-plugging on my system with an nvme device, and it is fixed there on mainline. Cheers, Jeff