On Tue, 2007-12-04 at 03:46 -0800, Martin Knoblauch wrote:
> Hi,
>
> I see the following stack warning(s) on a IBM x3650 (2xDual-Core, 8 GB, AACRAID with 6x146GB RAID5) running 2.6.24-rc3/rc4:
>
> [ 180.739846] mount.nfs used greatest stack depth: 3192 bytes left
> [ 666.121007] bash used greatest stack depth: 3160 bytes left
>
> Nothing bad has happened so far. The message does not show on a similarly configured HP/DL-380g4 (CCISS instead of AACRAID) running rc3. Anything to worry? Anything I can do to help debugging?
This is enabled by CONFIG_DEBUG_STACK_USAGE, which defines
check_stack_usage. It is called on task exit and will warn each time a
task has used the biggest kernel mode stack since booting. This isn't a
bug, and isn't a (bad) warning, it's just informational right now.
Jon.
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