Re: firewire bus after waking from sleep

[Joss Winn <joss@josswinn.org>]

Thanks.  I tried this (and other variations) for hours the other
night but whatever I did to load and unload the drivers, the next
time I went to mount the CD in the CDRW drive, mount would hang and
the drive would be useless. 


The situation is like this:

The CDRW drive works well after boot up. If
I unload the drivers prior to going to sleep, 'cat /proc/scsi/scsi'
correctly shows the drive missing.  After waking the iMac out of
sleep and loading the drivers, 'cat /proc/scsi/scsi' correctly shows
the drive is there.  However, trying to use the CDRW drive results 
in 'mount' hanging and sometimes a system hang.

any ideas on what the hell is going on?

thanks
joss

On Tue, Aug 27, 2002 at 12:31:43AM +0200, Philipp Schmidt wrote:
> On Sat, 2002-08-24 11:39:24 +0100, Joss Winn <joss@josswinn.org>
> wrote in message <[🔎] 20020824103924.GC1378@josswinn.org>:
> > this would be great if I can find a fix....
> > 
> > 
> > my firewire QPS CD-RW works nicely with the 2.4.18 kernel but for
> > one problem.
> > 
> > If I put my iMac to sleep, the CD-RW is useless after waking up
> > until I reboot. Scanning the bus with gscanbus or another scanbus
> > script can cause the machine to lock up.
> > 
> > Does anyone have any sugegstions on how to 'restore' the bus after
> > coming out of sleep so the burner is useable again?
> 
> i have similar problems with a firewire disk - unload the driver (perhps
> in the pwctl script) before sending it to sleep works for me. the
> firewire drivers seem not to clearly reinitalize after suspend....
> 
> AVE!
>   phils...
> 
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