linux-kernel - Re: [PATCH] block-mq:Fix the null memory access while setting tags cpumask

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <x491tcy7m2j.fsf@segfault.boston.devel.redhat.com>
Date:	Tue, 13 Oct 2015 12:47:00 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Cc:	<axboe@...nel.dk>, <linuxppc-dev@...ts.ozlabs.org>,
	<ming.lei@...onical.com>, <keith.busch@...el.com>,
	<snitzer@...hat.com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] block-mq:Fix the null memory access while setting tags cpumask

Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/