Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH 3/3] ARM 4Kstacks: Decrease poll and select stack usage, when using 4K stacks | Date | Thu, 20 Oct 2011 14:21:43 +0200 |
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On Wednesday 19 October 2011, Tim Bird wrote: > Reduce the max allowed size for struct poll_wqueue to avoid > using too much stack space in do_select() and do_sys_poll(), > when the kernel is using 4K stacks. > > Signed-off-by: Tim Bird <tim.bird@am.sony.com>
Can you explain why this is necessary with 4K stacks? I would expect the poll() function never to be deeply nested, so 1K used in there doesn't sound too problematic.
Arnd
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