2685 2006-05-22 18:19:00 +0000 need to skip probes on insufficient stack 2006-11-26 23:28:56 +0000 1 1 1 Unclassified systemtap translator unspecified All All RESOLVED FIXED P2 normal --- 1 fche fche 10218 fche 2006-05-22 18:19:41 +0000 Similarly to bug #2185, because we don't have a separate stack for kprobe handling (bug #931), we may have stack exhaustion problems in ordinary usage without reentrancy. We go out of our way to minimize stack usage, but we need to - estimate or measure stack usage of a worst-case scenario (kprobes handler, deeply nested systemtap expression, calling into the most complex runtime routine) - add code to the probe entry functions to check for available stack space, and punt (skip probe) if it's not sufficient 13584 fche 2006-11-26 23:28:56 +0000 patch committed. The default MINSTACKSPACE may need to be tuned in the future.