From: hch@infradead.org (Christoph Hellwig)
Subject: BUG: NULL pointer at IP: blk_mq_map_swqueue+0xbc/0x200 on 4.15.0-rc2
Date: Tue, 12 Dec 2017 00:35:02 -0800 [thread overview]
Message-ID: <20171212083502.GA10646@infradead.org> (raw)
In-Reply-To: <20171211035844.GB22819@ming.t460p>
On Mon, Dec 11, 2017@11:58:45AM +0800, Ming Lei wrote:
> As we talked offline, this IP points to cpumask_set_cpu(), seems this
> case may happen when one CPU isn't mapped to any hw queue, could you test
> the following patch to see if it helps your issue?
This looks odd as mq_map should be pre-zeroed. If it isn't we have
a few more problems..
next prev parent reply other threads:[~2017-12-12 8:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <799322399.34367785.1512659684033.JavaMail.zimbra@redhat.com>
2017-12-08 7:24 ` BUG: NULL pointer at IP: blk_mq_map_swqueue+0xbc/0x200 on 4.15.0-rc2 Yi Zhang
2017-12-11 3:58 ` Ming Lei
2017-12-11 13:29 ` Yi Zhang
2017-12-11 13:47 ` Ming Lei
2017-12-12 8:35 ` Christoph Hellwig [this message]
2017-12-12 9:16 ` Ming Lei
2018-01-05 16:39 ` Jens Axboe
2018-01-06 8:38 ` Ming Lei
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