I've added Martyn and Manohar to the CC list again. On Sun, Feb 24, 2013 at 02:45:58PM +0100, ternaryd wrote: > Hi, > > finally, I got as far as to try to send a few bytes over VME, although > I still don't know, how to confirm/request that the local controller is > the bus master. The problem is, that as soon as a few ioctl calls are > made, the system freezes and nothing else is responding. The root file > system is on NFS, but also there, no error messages can be found. This > doesn't happen always at the same point, and I really don't know, how > this can be debugged. > > Thanks for any hint, Do you have lockdep enabled? Sometimes SYSRQ-T will still respond so you can get a trace. Or if you sent your reproducer program that would also help. And which kernel are you using? regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel