From: Kay Sievers <kay.sievers@vrfy.org>
To: Alan Jenkins <sourcejedi.lkml@googlemail.com>
Cc: Michael Guntsche <mike@it-loops.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-hotplug <linux-hotplug@vger.kernel.org>
Subject: Re: [BUG] No ttyS0 - Strange udev 8250_pnp interaction
Date: Wed, 7 Oct 2009 22:06:13 +0200 [thread overview]
Message-ID: <ac3eb2510910071306r4ad6dc9btb7503bc3ab0ec815@mail.gmail.com> (raw)
In-Reply-To: <9b2b86520910071246r393f2afvacaa4d8f544508a8@mail.gmail.com>
On Wed, Oct 7, 2009 at 21:46, Alan Jenkins
<sourcejedi.lkml@googlemail.com> wrote:
> Udev would have avoided the race prior to
>
> 82c785e "udevd: remove check for dev_t, DEVPATH_OLD takes care of that"
>
> (the "check" removed here used to serialize events based on the device
> major:minor number).
>
> So - udev probably needs to add the check back.
What are the two devices with the same major/minor but a different DEVPATH?
> It might also be the case that future kernels could set DEVPATH_OLD as
> suggested. I don't know the gory details of 8250_pnp though.
The DEVPATH_OLD is only added when one and the same device was renamed
or moved, which isn't the case here, I guess?
Kay
next prev parent reply other threads:[~2009-10-07 20:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-07 17:54 Michael Guntsche
2009-10-07 19:46 ` Alan Jenkins
2009-10-07 20:06 ` Kay Sievers [this message]
2009-10-07 20:12 ` Kay Sievers
2009-10-07 20:31 ` Michael Guntsche
2009-10-07 20:53 ` Kay Sievers
2009-10-07 21:10 ` Alan Cox
2009-10-07 21:15 ` Kay Sievers
2009-10-07 21:23 ` Kay Sievers
2009-10-07 21:52 ` Michael Guntsche
2009-10-07 22:11 ` Kay Sievers
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