device driver memory leak in 5.1-20030726?
garyj at jennejohn.org
Sat Jul 26 14:02:56 PDT 2003
Mark Blackman writes:
> I'm seeing the same 'kmem_malloc(4096): kmem_map too small: XXXXX total
> messages that a few other have reported.
> From these symptoms, I'm speculating that one or more device drivers
> are producing kernel memory leaks and either triggering the
> 'kmem_map too small' messages or pushing all of the userland processes
> out of the way. Is this a reasonable interpretation?
> Does anyone else see symptoms that might lead to this conclusion?
I'm seeing exactly the same thing when I try to access my Archos
Jukebox (a USB 2.0 device). This didn't happen with a kernel made
before July 20, although I can't say when exactly the leak (if there
is one) was introduced, since I only make a new kernel every few
Eventually usb_allocmem fails and shortly thereafter I get the ``kmem_map
too small'' panic.
Unfortunately, panicing in ddb results in a hang - no crashdump.
Gary Jennejohn / garyj[at]jennejohn.org gj[at]freebsd.org gj[at]denx.de
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