cpu% ktrace /amd64/9pc64 0xffffffff8011757e 0xffffffff800495a0 <<EOF
	estackx ffffffff80049d88
	800494c0=801172d8 800494d0=8024413c 800494e8=801106d1 80049570=8011757e 
	80049580=80166b80 80049598=8011757e 800495a0=801172e0 800495b0=80167107 
	800495e8=801152e6 80049630=80115b74 80049638=8021282e 80049658=8021282e 
	80049690=8020af73 800496b8=80117273 80049700=80117a48 80049760=80117acc 
	80049770=80118694 80049788=8021cc7a 80049790=8021ac0b 800497b0=80111903 
	800497d8=80116c5c 80049810=80111903 80049898=802401ea 800498c8=801106d1 
	80049968=8011fe89 80049998=8020bdd4 800499a0=8020a61d 800499d0=8020bf80 
	800499e8=8020bf80 800499f8=802126b2 80049a08=802126dc 80049a10=8020ad60 
	80049a40=80202da2 80049a48=8020b2fa 80049a80=8020b01b 80049ab8=8020cad1 
	80049ad0=8020caf0 80049af0=80117a0f 80049b18=80204d80 80049b58=80205b85 
	80049b80=80218eab 80049ba0=80111903 80049bc8=80116c5c 80049c48=80117ee2 
	80049cb8=801106d1 80049cd0=80117e4c 80049cf0=801102b4 80049d70=ffffef98 
	80049d78=00000023 80049d80=00000023 
	EOF
src(0xffffffff8011757e); // dumpstack+0x10
src(0xffffffff80167107); // panic+0xeb
src(0xffffffff80117a48); // faultamd64+0x1e1
src(0xffffffff80116c5c); // trap+0x177
src(0xffffffff801106d1); // _intrr
//passing interrupt frame; last pc found at sp=0xffffffff800498c8
src(0xffffffff8011fe89); // tlsgen+0x289
src(0xffffffff8020bf80); // ptealloc+0xe
src(0xffffffff8020ad60); // fixfault+0x387
src(0xffffffff8020b01b); // fault+0x169
src(0xffffffff80117a0f); // faultamd64+0x1a8
src(0xffffffff80116c5c); // trap+0x177
src(0xffffffff801106d1); // _intrr
//passing interrupt frame; last pc found at sp=0xffffffff80049cb8
//guessing call through invalid pointer; try again at sp=0xffffffff80049d70
//didn't find pc at sp=0xffffffffffffef98, last pc found at sp=0xffffffff80049cb8
cpu% acid /amd64/9pc64 <<EOF
	src(0xffffffff8011757e); // dumpstack+0x10
	src(0xffffffff80167107); // panic+0xeb
	src(0xffffffff80117a48); // faultamd64+0x1e1
	src(0xffffffff80116c5c); // trap+0x177
	src(0xffffffff801106d1); // _intrr
	//passing interrupt frame; last pc found at sp=0xffffffff800498c8
	src(0xffffffff8011fe89); // tlsgen+0x289
	src(0xffffffff8020bf80); // ptealloc+0xe
	src(0xffffffff8020ad60); // fixfault+0x387
	src(0xffffffff8020b01b); // fault+0x169
	src(0xffffffff80117a0f); // faultamd64+0x1a8
	src(0xffffffff80116c5c); // trap+0x177
	src(0xffffffff801106d1); // _intrr
	//passing interrupt frame; last pc found at sp=0xffffffff80049cb8
	//guessing call through invalid pointer; try again at sp=0xffffffff80049d70
	//didn't find pc at sp=0xffffffffffffef98, last pc found at sp=0xffffffff80049cb8
	EOF
/amd64/9pc64:amd64 plan 9 boot image
/sys/lib/acid/port
/sys/lib/acid/amd64
acid: /sys/src/9/pc64/trap.c:606
 601	}
 602	
 603	void
 604	dumpstack(void)
 605	{
>606		callwithureg(_dumpstack);
 607	}
 608	
 609	static void
 610	debugexc(Ureg *ureg, void *)
 611	{
acid: acid: /sys/src/9/port/devcons.c:239
 234		splx(s);
 235		prflush();
 236		dumpstack();
 237	
 238		/* reboot cpu servers and headless machines when not debugging */
>239		if(getconf("*debug") == nil)
 240		if(cpuserver || !conf.monitor)
 241			exit(1);
 242	
 243		/* otherwise, just hang */
 244		while(islo()) idlehands();
acid: acid: /sys/src/9/pc64/trap.c:717
 712		if(n < 0){
 713			if(!user){
 714				dumpregs(ureg);
 715				panic("fault: %#p", addr);
 716			}
>717			checkpages();
 718			sprint(buf, "sys: trap: fault %s addr=%#p",
 719				read ? "read" : "write", addr);
 720			postnote(up, 1, buf, NDebug);
 721		}
 722		if(!user) poperror();
acid: acid: /sys/src/9/pc64/trap.c:358
 353			}
 354			if(ctl->isr)
 355				ctl->isr(vno);
 356			for(v = ctl; v != nil; v = v->next){
 357				if(v->f)
>358					v->f(ureg, v->a);
 359			}
 360			if(ctl->eoi)
 361				ctl->eoi(vno);
 362	
 363			if(ctl->isintr){
acid: acid: /sys/src/9/pc64/l.s:964
 959		PUSHQ	SP
 960		CALL	trap(SB)
 961	
 962	TEXT _intrr(SB), 1, -4
 963	_intrestore:
>964		POPQ	AX
 965	
 966		POPQ	AX
 967		POPQ	BX
 968		POPQ	CX
 969		POPQ	DX
acid: acid: acid: /sys/src/9/port/devtls.c:326
 321					break;
 322				}
 323				perm = 0444;
 324				if(TYPE(q) == Qclonus)
 325					perm = 0555;
>326				devdir(c, q, tlsnames[TYPE(q)], 0, eve, perm, dp);
 327				return 1;
 328			}
 329			s -= 3;
 330			if(s >= tdhiwat)
 331				return -1;
acid: acid: /sys/src/9/port/page.c:372
 367	ptealloc(void)
 368	{
 369		Pte *new;
 370	
 371		new = smalloc(sizeof(Pte));
>372		new->first = &new->pages[PTEPERTAB];
 373		new->last = new->pages;
 374		return new;
 375	}
 376	
 377	void
acid: acid: /sys/src/9/port/fault.c:168
 163			panic("fault");
 164			return -1;
 165	
 166		case SG_TEXT: 			/* Demand load */
 167			if(pagedout(*pg))
>168				pio(s, addr, soff, pg);
 169	
 170			mmuphys = PPN((*pg)->pa) | PTERONLY | PTECACHED | PTEVALID;
 171			(*pg)->modref = PG_REF;
 172			break;
 173	
acid: acid: /sys/src/9/port/fault.c:320
 315			if((attr & SG_TYPE) == SG_PHYSICAL){
 316				mapphys(s, addr, attr);
 317				break;
 318			}
 319	
>320			if(fixfault(s, addr, read) == 0)
 321				break;
 322	
 323			splhi();
 324			switch(up->procctl){
 325			case Proc_exitme:
acid: acid: /sys/src/9/pc64/trap.c:712
 707			up->insyscall = insyscall;
 708			splx(s);
 709			nexterror();
 710		}
 711		n = fault(addr, ureg->pc, read);
>712		if(n < 0){
 713			if(!user){
 714				dumpregs(ureg);
 715				panic("fault: %#p", addr);
 716			}
 717			checkpages();
acid: acid: /sys/src/9/pc64/trap.c:358
 353			}
 354			if(ctl->isr)
 355				ctl->isr(vno);
 356			for(v = ctl; v != nil; v = v->next){
 357				if(v->f)
>358					v->f(ureg, v->a);
 359			}
 360			if(ctl->eoi)
 361				ctl->eoi(vno);
 362	
 363			if(ctl->isintr){
acid: acid: /sys/src/9/pc64/l.s:964
 959		PUSHQ	SP
 960		CALL	trap(SB)
 961	
 962	TEXT _intrr(SB), 1, -4
 963	_intrestore:
>964		POPQ	AX
 965	
 966		POPQ	AX
 967		POPQ	BX
 968		POPQ	CX
 969		POPQ	DX
acid: acid: acid: acid: acid: