From: Tejun Heo <tj@kernel.org>
To: David Milburn <dmilburn@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>,
syzkaller <syzkaller@googlegroups.com>,
linux-ide@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Jeff Garzik <jgarzik@redhat.com>,
Sergei Shtylyov <sshtylyov@ru.mvista.com>,
Kostya Serebryany <kcc@google.com>,
Alexander Potapenko <glider@google.com>,
Sasha Levin <sasha.levin@oracle.com>
Subject: Re: ata: BUG in ata_sff_hsm_move
Date: Fri, 29 Jan 2016 15:24:40 -0500 [thread overview]
Message-ID: <20160129202440.GB4534@mtj.duckdns.org> (raw)
In-Reply-To: <20160129181442.GA30391@dhcp-10-15-1-8.hsv.redhat.com>
Hello, David.
On Fri, Jan 29, 2016 at 12:14:42PM -0600, David Milburn wrote:
> Can ata_sff_hsm_move grab the lock and save off the task_state,
> like this patch?
It's not just the task_state. Everything the polling path is doing is
dangerous. It's all pretty confused.
Thanks.
--
tejun
next prev parent reply other threads:[~2016-01-29 20:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 11:35 ata: BUG in ata_sff_hsm_move Dmitry Vyukov
2016-01-29 11:52 ` Tejun Heo
2016-01-29 11:59 ` Dmitry Vyukov
2016-01-29 12:23 ` Tejun Heo
2016-01-29 13:18 ` Dmitry Vyukov
2016-01-29 13:40 ` Dmitry Vyukov
2016-01-29 18:14 ` David Milburn
2016-01-29 20:24 ` Tejun Heo [this message]
2016-01-29 20:23 ` Tejun Heo
2016-02-01 10:46 ` Dmitry Vyukov
2016-02-01 16:50 ` [PATCH libata/for-4.5-fixes] libata: fix sff host state machine locking while polling Tejun Heo
2016-01-29 12:20 ` [PATCH libata/for-4.5-fixes] libata-sff: use WARN instead of BUG on illegal host state machine state Tejun Heo
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