Messages in this thread | | | Date | Fri, 1 Apr 2005 13:09:42 -0600 | From | Terence Ripperda <> | Subject | Re: question about do_IRQ + 4k stacks |
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On Wed, Mar 30, 2005 at 09:14:22PM -0500, bgerst@didntduck.org wrote: > It checks for both process context (system call or kernel thread) or > interrupt context (nested irqs) stack overflows.
ok, thanks.
so we really only have 3k stacks rather than 4k stacks, right? if any code exceeds 3k stacks and is preempted by an interrupt, we can trigger this check and hang the system as a result (I notice that at least RHEL 4's kernels enable this check by default, not sure about other kernels).
Thanks, Terence
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