On Sun, Jul 27, 2003 at 04:43:32PM +0200, Lukas Ertl wrote: > On Sun, 27 Jul 2003, Mark Blackman wrote: > > > Perhaps it's a USB bug. There seems to be some correspondence between > > the use of the USB Speedtouch ADSL modem and the out-of-control > > devbuf allocations. > > I'm too seeing these annoying kmem_malloc panics on recent -current > kernels. The laptop I'm using is way off of being overloaded at all, the > only thing I do is going online using a Bluetooth USB dongle. As soon as I > generate some network traffic, devbuf allocations go up, until at some > point the machine panics randomly in kmem_malloc. > > I have different core dumps and backtraces available, but they don't seem > to be of much use in this case. I really suspect the USB stuff to be > leaking. > > regards, > le
There are two problems. 1) The USB code never frees the stuff it allocates; 2) The USB code places the stuff it allocates into a couple of lists unprotected by any mutexes. It should at a minimum assert that Giant is held coming in, at all times. > -- > Lukas Ertl eMail: [EMAIL PROTECTED] > UNIX Systemadministrator Tel.: (+43 1) 4277-14073 > Vienna University Computer Center Fax.: (+43 1) 4277-9140 > University of Vienna http://mailbox.univie.ac.at/~le/ -- Bosko Milekic * [EMAIL PROTECTED] * [EMAIL PROTECTED] TECHNOkRATIS Consulting Services * http://www.technokratis.com/ _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"
