From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: FAQ?: 10 sec delay /dev/sda1 via usb-storage using udev 43 &
Date: Tue, 11 Jan 2005 17:35:19 +0000 [thread overview]
Message-ID: <1105464919.6574.6.camel@localhost.localdomain> (raw)
In-Reply-To: <BAY101-F26BB9451874E46E98FEA61FE880@phx.gbl>
On Tue, 2005-01-11 at 17:06 +0000, Jayant Roplekar wrote:
> Problem at hand: I use /sbin/hotplug -> /etc/hotplug/usb/myfuji_script
> which gets called when a fujifilm camera gets added to usb port.
Use a udev dev.d/ script instead. It is called at node creation time.
> The delay
> between connecting the camera (also seeing the scsi emulation stuff in
> syslog, which was instantaneous) and having a /dev/sda1 available to
> actually mount became a painful 10-12 sec as I moved to 2.6.8 on mdk 10.1.
Any chance to upgrade to 2.6.10? We had a bug in the kernel, which
causes holes in the sequence numbers. This causes a 10 sec timeout in
udevd waiting for the missing events.
> And I had to hard code a delay [which I guessed] in my script. Then I got a
> little wiser and added a udev symlink /dev/camera and I poll for it to
> appear inside myfuji_script. The delay is still close to 10 sec. And if
> I am not mistaken, I think even with the second (udev) solution I got a
> bogus fat partition or similar error [got that error 1 out of 5 times I have
> plugged in the camera so far].
That does not sound to be related to udev, but usb-storage had some
problems which seems to be solved with 2.6.10 too.
Kay
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prev parent reply other threads:[~2005-01-11 17:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-11 17:06 FAQ?: 10 sec delay /dev/sda1 via usb-storage using udev 43 & 2.6.8.1-10mdk Jayant Roplekar
2005-01-11 17:35 ` Kay Sievers [this message]
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