From: Andrew Morton <akpm@linux-foundation.org>
To: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Cc: <ionut.m.alexa@gmail.com>, <mark.yang@spreadtrum.com>,
<wei.qiao@spreadtrum.com>, <geng.ren@spreadtrum.com>,
<orson.zhai@spreadtrum.com>, <zhizhou.zhang@spreadtrum.com>,
<ke.wang@spreadtrum.com>, <zhang.lyra@gmail.com>,
<linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>, Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH] kernel: async: Fixed the wrong waitting condition of wait_event
Date: Wed, 7 Jan 2015 16:39:15 -0800 [thread overview]
Message-ID: <20150107163915.50a71131faf74e0f75562137@linux-foundation.org> (raw)
In-Reply-To: <1420428935-30385-1-git-send-email-chunyan.zhang@spreadtrum.com>
(resend with cc's, sorry)
On Mon, 5 Jan 2015 11:35:35 +0800 Chunyan Zhang <chunyan.zhang@spreadtrum.com> wrote:
> This patch changes the waitting condition of wait_event in the
> function 'async_synchronize_cookie_domain'.
>
> This function waits until all asynchronous function calls for the certain
> domain have been done.
>
> But, the function 'lowest_in_progress' returns the lowest *pending*
> entry's cookie.
>
> So we should make sure that the return value of lowest_in_progress(domain)
> must be larger than @cookie.
I'm having runtime problems with this. Twice the kernel silently hangs
late in initcalls and the third time I got a great stream of oopses.
I'll drop it. Hopefully you'll be able to work through the bug with
Arjan and Tejun.
next prev parent reply other threads:[~2015-01-08 0:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <async>
2015-01-05 3:35 ` Chunyan Zhang
2015-01-08 0:37 ` Andrew Morton
2015-01-08 0:39 ` Andrew Morton [this message]
2015-01-08 6:20 ` Chunyan Zhang (张春艳)
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