.. and as a follow up (and cc'ing attillo and freebsd-mips, in case it's relevant to other platforms and there's a MIPS specific thing to fix):
* 2128: mi_switch to idle * 2129: kern_clocksource.c:762 - ie, cpu_idleclock() has been called * 2130: the ath interrupt comes in * 2134: it's skipped for now as the idle thread is in a critical section * 2136: kern_clocksource.c:266 - ie, getnextcpuevent(), inside cpu_idleclock(). What I bet is happening is this race between the critical section + cpu_idleclock() and the ath0 interrupt: * idle gets scheduled * critical_enter() is called in the mips cpu_idle() routine * the ath interrupt comes in here and gets handled, but since we're in a critical section, it won't preempt things * the cpu_idleclock() code completes without releasing the preemption, and the only thing that wakes up from that wait is the next interrupt (clock, arge0, etc.) Adrian _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
