[issue2152] DFBSD v2.12.0.4.g2a52d-RELEASE - panic: assertion "curthread->td_critcount" failed in lwkt_process_ipiq_core

[Antonio Huete Jimenez (via DragonFly issue tracker)]

Antonio Huete Jimenez <tuxillo at quantumachine.net> added the comment:

I've noticed that lwkt_process_ipiq uses to be called within a critical section, 
but that doesn't happen in pmap_interlock_wait. Is there any reason for that?




   3485 void
   3486 pmap_interlock_wait(struct vmspace *vm)
   3487 {
   3488 	struct pmap *pmap = &vm->vm_pmap;
   3489 
   3490 	if (pmap->pm_active & CPUMASK_LOCK) {
   3491 		DEBUG_PUSH_INFO("pmap_interlock_wait");
   3492 		while (pmap->pm_active & CPUMASK_LOCK) {
   3493 			cpu_pause();
   3494 			cpu_ccfence();
   3495 			lwkt_process_ipiq();
   3496 		}
   3497 		DEBUG_POP_INFO();
   3498 	}
   3499 }

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status: unread -> chatting

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