From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"loberman@redhat.com" <loberman@redhat.com>,
"ming.lei@redhat.com" <ming.lei@redhat.com>
Cc: Bart Van Assche <Bart.VanAssche@wdc.com>
Subject: Re: [v4.13-rc BUG] system lockup when running big buffered write(4M) to IB SRP via mpath
Date: Wed, 9 Aug 2017 17:10:01 +0000 [thread overview]
Message-ID: <1502298599.2356.7.camel@wdc.com> (raw)
In-Reply-To: <c072e942-0265-f0ad-561d-0e50d50e3cb1@redhat.com>
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WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"loberman@redhat.com" <loberman@redhat.com>,
"ming.lei@redhat.com" <ming.lei@redhat.com>
Cc: Bart Van Assche <Bart.VanAssche@wdc.com>
Subject: Re: [v4.13-rc BUG] system lockup when running big buffered write(4M) to IB SRP via mpath
Date: Wed, 9 Aug 2017 17:10:01 +0000 [thread overview]
Message-ID: <1502298599.2356.7.camel@wdc.com> (raw)
In-Reply-To: <c072e942-0265-f0ad-561d-0e50d50e3cb1@redhat.com>
On Wed, 2017-08-09 at 12:43 -0400, Laurence Oberman wrote:
> Your latest patch on stock upstream without Ming's latest patches is
> behaving for me.
>
> As already mentioned, the requeue -11 and clone failure messages are
> gone and I am not actually seeing any soft lockups or hard lockups.
>
> When Ming gets back I will work with him on his patch set and the lockups.
>
> Running 10 parallel writes which easily trips into soft lockups on
> Ming's kernel (even with your patch) has been stable here on 4.13-RC3
> with your patch.
>
> I will leave it running for a while now but the patch is good.
>
> If it survives 4 hours I will add a Tested-by to your latest patch.
Hello Laurence,
I'm working on an additional patch that should reduce unnecessary requeuing
even further. I will let you know when it's ready.
Additionally, please trim e-mails when replying such that e-mails do not get
too long.
Thanks,
Bart.
next prev parent reply other threads:[~2017-08-09 17:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-08 14:17 [v4.13-rc BUG] system lockup when running big buffered write(4M) to IB SRP via mpath Ming Lei
2017-08-08 14:17 ` Ming Lei
2017-08-08 23:10 ` Bart Van Assche
2017-08-08 23:10 ` Bart Van Assche
2017-08-09 0:11 ` Laurence Oberman
2017-08-09 2:28 ` Laurence Oberman
2017-08-09 16:43 ` Laurence Oberman
2017-08-09 17:10 ` Bart Van Assche [this message]
2017-08-09 17:10 ` Bart Van Assche
2017-08-23 11:35 ` Ming Lei
2017-08-23 12:46 ` Ming Lei
2017-08-23 12:46 ` Ming Lei
2017-08-23 15:12 ` Bart Van Assche
2017-08-23 15:12 ` Bart Van Assche
2017-08-23 16:03 ` Ming Lei
2017-08-23 23:51 ` Mike Snitzer
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