Bug #13412 » bug13412.r58367.patch
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if (sp_page == fault_page || sp_page == fault_page + 1 ||
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sp_page <= fault_page && fault_page <= bp_page) {
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rb_thread_t *th = ruby_current_thread;
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fprintf(stderr, "stack_overflow detected\n");
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if ((uintptr_t)th->tag->buf / pagesize <= fault_page + 1) {
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/* drop the last tag if it is close to the fault,
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* otherwise it can cause stack overflow again at the same
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* place. */
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fprintf(stderr, "use prev tag\n");
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th->tag = th->tag->prev;
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}
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raise_stack_overflow(sig, th);
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