From: "E. Oltmanns" <oltmanns@uni-bonn.de>
To: linux-hotplug@vger.kernel.org
Subject: Re: Once more udev/hotplug and usb-storage devices
Date: Mon, 02 May 2005 13:45:41 +0000 [thread overview]
Message-ID: <87vf61u4fu.fsf@denkblock.local> (raw)
Elias Oltmanns <oltmanns@uni-bonn.de> wrote:
[...]
> On linux-2.6.11.7 with udev, hotplug, dbus-1 and hald but no X running,
> I plug in my usb stick. If I'm lucky, nothing unexpected happens and I
> can mount /dev/sda1 afterwards. Otherwise, a whole bunch of error
> messages is generated and there is no way to access the media. In
> fact, udev removes the freshly created device nodes even before I
> remove the usb stick. In the latter case, removing and reinserting the
> usb stick resolves the problem. However, a stale scsi_eh_0 process
> remains and cannot be killed but apparently doesn't affect the
> system's stability either. The relevant part of /var/log/syslog is
> attached below.
>
> As the explicit mentioning of scsi_eh_0 suggests, I haven't managed to
> reproduce this problem if the usb stick has been inserted before. In
> fact, I did achieve this but it involved unloading usb_storage, sd_mod
> and scsi_mod so I ended up with a stale scsi_eh_0 again. So far, it
> only appeared when hald wsa running at the time but I didn't try very
> thoroughly without dbus-1 and hald and, as I said before, I can't
> reproduce this problem reliably.
Just for the record:
While I managed to reproduce the described problem on reinsertion of
the usb stick (without unloading the kernel modules first), the whole
problem never appeared when hald wasn't running at the time.
Naturally, I thought that hal was the problem. However, after an
upgrade of udev from 0.050 to 0.056 the problem didn't occur anymore -
even with hald running! Sorry that I didn't think about upgrading
earlier. Hopefully, this really is the reason.
Regards,
Elias
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next reply other threads:[~2005-05-02 13:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-02 13:45 E. Oltmanns [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-04-25 21:27 Once more udev/hotplug and usb-storage devices Elias Oltmanns
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