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authorPeter Zijlstra <peterz@infradead.org>2021-09-15 16:19:46 +0200
committerPeter Zijlstra <peterz@infradead.org>2021-09-21 13:57:43 +0200
commit7fae4c24a2b84a66c7be399727aca11e7a888462 (patch)
treee9d09d78f3c3ce5598617ce05d4420fe08c55398 /mm/dmapool.c
parentx86/mm/64: Improve stack overflow warnings (diff)
downloadlinux-7fae4c24a2b84a66c7be399727aca11e7a888462.tar.xz
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x86: Increase exception stack sizes
It turns out that a single page of stack is trivial to overflow with all the tracing gunk enabled. Raise the exception stacks to 2 pages, which is still half the interrupt stacks, which are at 4 pages. Reported-by: Michael Wang <yun.wang@linux.alibaba.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/YUIO9Ye98S5Eb68w@hirez.programming.kicks-ass.net
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