On Fri, Jun 16, 2006 at 03:46:41PM -0400, Simon Wu wrote: > Hello, > > I am using the cdc_acm driver to control a few 3G mobile modem. When > we do ppp calls on it, it frequently crashs the USB portion of the > kernel. The machine is still usable but any process related the USB > show "Ds" mode. I attache the error below. It happens ed bother 2.6.11 > and 2.6.15 kernel on Fedora 4. But Debian with 2.6.13 kernel seems > stable. > > I will be very grateful if you can point me to how to prevent it. Upgrade to a newer kernel version which has a fix for this problem :) Try 2.6.16 or newer please. thanks, greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/