on 16/04/2008 19:19 Roland Smith said the following: > On Wed, Apr 16, 2008 at 09:10:23AM -0700, Steve Franks wrote: >> Fatal trap 12: page fault while in kernel mode >> cpuid = 0; apic id = 00 >> fault virtual address = 0x0 >> fault code = supervisor read instruction, page not present >> instruction pointer = 0x8:0x0 >> stack pointer = 0x10:0xffffffffa0208570 >> frame pointer = 0x10:0xffffff0001e1ca00 >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, long 1, def32 0, gran 1 >> processor eflags = interrupt enabled, resume, IOPL = 0 >> current process = 12 (swi4: clock sio) > > Odd. This doesn't seem to have anything to do with usb. It is in a > kernel thread that runs the clock and serial port.
It is not as odd if you consider that "clock" is actually softclock that executes timeouts/callouts and I have no doubts that we do use those in USB subsystem. > > If you give the 'bt' command (backtrace) here, what does it say? I think 'bt' should be a default command in kgdb init or at least there should be a big advice to the users: "if you managed to run kgdb on a core file, then at the very least execute bt command" :-) -- Andriy Gapon _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
