Messages in this thread | | | Date | Sun, 14 May 2006 21:56:18 +0400 | From | Stas Sergeev <> | Subject | Re: Segfault on the i386 enter instruction |
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Hi.
Andi Kleen wrote: > Handling it like you expect would require to disassemble > the function in the page fault handler and it's probably not > worth doing that for this weird case. Just wondering, is this case really that weird? In fact, the check against %esp that the kernel does, looks strange. I realize that it can catch a (very rare) user-space bug of accessing below %esp, but other than that it looks redundant (IMHO) and as soon as it triggers the false-positives, what is it really good for? Aren't the rlimit and the other checks of acct_stack_growth() not enough, or am I missing something obvious?
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