Messages in this thread | | | Date | Fri, 25 May 2001 10:14:57 +0200 | From | Andi Kleen <> | Subject | Re: [CHECKER] large stack variables (>=1K) in 2.4.4 and 2.4.4-ac8 |
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On Fri, May 25, 2001 at 03:20:20PM +1000, Keith Owens wrote: > >> On a side note, does anyone know if the kernel does checking if the > >> stack overflowed at any time? > > > >You normally get a silent hang or worse a stack fault exception > >(which linux/x86 without kdb cannot recover from) which gives you instant > >reboot. > > You cannot recover from a kernel stack overflow even with kdb. The > exception handler and kdb use the stack that just overflowed.
Hmm, I thought it used an own stack using an appropiate gate. At least on x86-64 I implemented it this way using a static 4K array.
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