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From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: Udevd sequence number overlap issue!
Date: Thu, 08 Apr 2004 13:49:52 +0000	[thread overview]
Message-ID: <20040408134952.GA30979@vrfy.org> (raw)
In-Reply-To: <3ACA40606221794F80A5670F0AF15F84037B8F7E@PDSMSX403.ccr.corp.intel.com>

On Thu, Apr 08, 2004 at 09:32:31AM +0800, Yin, Hu wrote:
> First thank you very much for your reply. Maybe I didn't describe this
> issue clearly. I understand what you have said. But I mean what it will
> do when udevd receive two messages with the same sequence number at the
> same time.

The kernel will _never_ send two messages with the same sequence. This
case is really pathological and affects only _your_ testing setup. It
has _nothing_ to do with the real world.

> Is it not necessary for udevd to check whether the incoming
> sequence number has existed:-)

Is this a question? Sure it's neccessary. How will you reorder incoming
sequences without remembering the number of the last handled sequence?
Maybe I don't get your point?

Kay


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      parent reply	other threads:[~2004-04-08 13:49 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-07  1:40 Udevd sequence number overlap issue! Yin, Hu
2004-04-07 10:04 ` Kay Sievers
2004-04-08  1:32 ` Yin, Hu
2004-04-08 13:49 ` Kay Sievers [this message]

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