At Thu, 27 Feb 2003 13:00:10 -0500, Ivica Bukvic wrote: > > Hi all, > > This is my latest finding. Thanks to the script I got from Jaroslav, I > am now able to hotplug my midisport 2x2 whenever I wish to do so. > However, there is an interesting problem surrounding Mdk9.0. > > If I use the planet ccrma's hotplug ver. 2002_8_26 (by forcing upgrade > of the mdk's), I get the fxload and all the goodies making the midisport > work right out-of-the-box. However, with one huge flaw: > > When I unplug the midisport (after having the alsasound hotplug script > installed), my kernel oops and system freezes telling me something about > "disabling interrupt handler." (if someone tells me where I can track > this information log I will be happy to forward it). So, I am simply not > allowed to unplug the device. > > In addition my /var/log/messages relatively often spits out the > following message: > <date> <host> kernel: usb-uhci.c: interrupt, status 3, frame# > <some_number> > > I've tracked down the problem to the /sbin/modprobe -r snd-usb-midi (and > snd-usb-audio). If I move this thing somewhere else in the alsasound > hotplug script (like purging it at load-time and then reloading the > driver, rather than on disconnect) then the freeze occurs at that point. > When I comment it out, no freezes occur. So, I am pretty sure that is > the culprit.
hmm, the hot unplugging of ALSA usb devices was improved in the recent version - basically i didn't see problems with the devices i have. but i've not tested with midi devices, so this might be a problem. just make sure that you unload snd-usb-audio (snd-usb-midi doesn't exist any longer) before unplugging the device. Takashi ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
