From: Christoph Hellwig <hch@lst.de>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Bart Van Assche <Bart.VanAssche@wdc.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Stefan Haberland <sth@linux.vnet.ibm.com>,
linux-s390 <linux-s390@vger.kernel.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)
Date: Thu, 7 Dec 2017 00:29:24 +0100 [thread overview]
Message-ID: <20171206232924.GA16584@lst.de> (raw)
In-Reply-To: <5ab91c56-b117-f4fa-3049-a4f8a5493155@de.ibm.com>
On Wed, Dec 06, 2017 at 01:25:11PM +0100, Christian Borntraeger wrote:
t > commit 11b2025c3326f7096ceb588c3117c7883850c068 -> bad
> blk-mq: create a blk_mq_ctx for each possible CPU
> does not boot on DASD and
> commit 9c6ae239e01ae9a9f8657f05c55c4372e9fc8bcc -> good
> genirq/affinity: assign vectors to all possible CPUs
> does boot with DASD disks.
>
> Also adding Stefan Haberland if he has an idea why this fails on DASD and adding Martin (for the
> s390 irq handling code).
That is interesting as it really isn't related to interrupts at all,
it just ensures that possible CPUs are set in ->cpumask.
I guess we'd really want:
e005655c389e3d25bf3e43f71611ec12f3012de0
"blk-mq: only select online CPUs in blk_mq_hctx_next_cpu"
before this commit, but it seems like the whole stack didn't work for
your either.
I wonder if there is some weird thing about nr_cpu_ids in s390?
next prev parent reply other threads:[~2017-12-06 23:29 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <9c5eec5d-f542-4d76-6933-6fe31203ce09@de.ibm.com>
[not found] ` <1511205644.2396.32.camel@wdc.com>
[not found] ` <04526c98-ffc5-1eca-3aa8-50f9212c4323@de.ibm.com>
[not found] ` <5c9f2228-0a8b-8225-7038-e6cb3f31ca0b@kernel.dk>
2017-11-20 20:49 ` 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk Christian Borntraeger
2017-11-20 20:52 ` Jens Axboe
2017-11-21 8:35 ` Christian Borntraeger
2017-11-21 9:50 ` Christian Borntraeger
2017-11-21 10:14 ` 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable) Christian Borntraeger
2017-11-21 17:27 ` Jens Axboe
2017-11-21 18:09 ` Jens Axboe
2017-11-21 18:12 ` Christian Borntraeger
2017-11-21 18:27 ` Jens Axboe
2017-11-21 18:39 ` Jens Axboe
2017-11-21 19:15 ` Christian Borntraeger
2017-11-21 19:30 ` Jens Axboe
2017-11-21 20:12 ` Christian Borntraeger
2017-11-21 20:14 ` Jens Axboe
2017-11-21 20:19 ` Christian Borntraeger
2017-11-21 20:21 ` Jens Axboe
2017-11-21 20:31 ` Christian Borntraeger
2017-11-21 20:39 ` Jens Axboe
2017-11-22 7:28 ` Christoph Hellwig
2017-11-22 14:46 ` Jens Axboe
2017-11-23 14:34 ` Christoph Hellwig
2017-11-23 14:42 ` Hannes Reinecke
2017-11-23 14:47 ` Christoph Hellwig
2017-11-23 15:05 ` Christian Borntraeger
2017-11-23 18:17 ` Christian Borntraeger
2017-11-23 18:25 ` Christoph Hellwig
2017-11-23 18:28 ` Christian Borntraeger
2017-11-23 18:32 ` Christoph Hellwig
2017-11-23 18:59 ` Christian Borntraeger
2017-11-24 13:09 ` Christian Borntraeger
2017-11-27 15:54 ` Christoph Hellwig
2017-11-29 19:18 ` Christian Borntraeger
2017-11-29 19:36 ` Christian Borntraeger
2017-12-04 16:21 ` Christoph Hellwig
2017-12-06 12:25 ` Christian Borntraeger
2017-12-06 23:29 ` Christoph Hellwig [this message]
2017-12-07 9:20 ` Christian Borntraeger
2017-12-14 17:32 ` Christian Borntraeger
2017-12-18 13:56 ` Stefan Haberland
2017-12-20 15:47 ` Christian Borntraeger
2018-01-11 9:13 ` Ming Lei
2018-01-11 9:26 ` Stefan Haberland
2018-01-11 11:44 ` Christian Borntraeger
2018-01-11 13:17 ` Stefan Haberland
2018-01-11 17:46 ` Christoph Hellwig
2018-01-12 1:16 ` Ming Lei
2017-11-23 14:02 ` Christoph Hellwig
2017-11-23 14:08 ` Christoph Hellwig
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