trouble generating a core file

Chuck Tuffli chuck_tuffli at agilent.com
Mon May 9 15:16:42 PDT 2005


On Mon, May 09, 2005 at 01:37:07PM -0700, Matthew Dillon wrote:
. ..
>     It looks like the vm_contig_pg_kmap() call failed and it paniced
>     trying to free the page list.
> 
>     generally speaking a kmap will only fail if the kernel has run out
>     of KVM, which means that it is likely a memory leak in the driver
>     (e.g. it could be missing some busdma calls or might not be freeing
>     busdma'd memory properly).

understood. in this case, the application is purposely trying to
exhaust KVM, but was expecting an error from the driver and not an OS
panic.

>     This patch should fix the panic, but it is likely something else
>     will go poof due to the memory leak.
> 
> 						-Matt

yup, this does fix the panic. thanks for the fix!

-- 
Chuck Tuffli
Agilent Technologies





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