https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192906
--- Comment #1 from Garrett Cooper <[email protected]> --- Note from Anton Rang @ isilon (Isilon had fixed a similar/potentially same issue in 7.x): From: Rang, Anton Sent: Thursday, August 21, 2014 11:12 PM To: 'Cooper, Garrett' Subject: dtrace bug When dtrace is running, it’s important that traps be caught by dtrace if required. This is implemented via hook variables such as dtrace_trap_func and dtrace_doubletrap_func. However, these can’t be checked from normal C functions, since dtrace may add a probe at the start of the function, which causes a trap before the check, which causes an infinite loop. For dtrace_trap_func, a special trap_check function is used – dtrace knows about this name and avoids instrumenting it, thus the trap occurs and dtrace is invoked without an intervening probe. The same needs to be done for dtrace_dbltrap_func. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
