Lukas Ertl wrote this message on Sun, Jul 27, 2003 at 16:43 +0200: > 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 must note that the USB changes only allocates memory in the M_USB area which is described by: usb.c:MALLOC_DEFINE(M_USB, "USB", "USB"); So, that means it wouldn't be in the devbuf area. (This is the one of the points of malloc areas is to help track down stray allocations and memory leaks). > 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. It may be leaking, but it won't be leaking devbuf memory. The only thing that is in usb (in dev/usb) that uses M_DEVBUF is ukbd. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."Received on Sun Jul 27 2003 - 10:18:29 UTC
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