From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <43deece94abb1cac0134faadb901aac0@quanstro.net>
From: erik quanstrom <quanstro@quanstro.net>
Date: Sun, 29 Jul 2007 20:32:07 -0400
To: 9fans@quanstro.net
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Cc: 
Subject: [9fans] kernel panic
Topicbox-Message-UUID: 988dcc14-ead2-11e9-9d60-3106f5b1d025

unfortuantely, it's not obvious to me which memmove is triggering
this panic.

- erik

ladd# fcpu1: registers for validateaddress 25320
aFLAGS=10202 TRAP=E ECODE=2 PC=F0195E51u SS=5F66 USP=F027F830
l  AX 0082801C  BX F082D098  CX 00000000  DX F082D098
t  SI 00005000  DI 0001E000  BP 00000002
   CS 0010  DS 0008  ES 0008  FS 001B  GS 001B
n  CR0 80010039 CR2 00828058 CR3 0763f000l CR4 000000d0o
  MCA 86a0985d12 MCT 00000000c
  ur f29f42c4 up f0305b38
kpanic: fault: 0x828058

s 1
lock 0xf027f830 loop key 0xdeaddead pc 0xf01961dd held by pc 0xf0195f66 proc 25320
25318:validateaddress pc f01a683c dbgpc     373b     Fault (Running) ut 0 st 27 bss 3f000 qpc f0195949 nl 0 n0
25320:validateaddress pc f015375f dbgpc     3615     Fault (Running) ut 0 st 10 bss 3f000 qpc f0195949 nl 2 n0
pdumpstack disabled
acpu1: exiting
nic: fault: 0x828058

acid: src(0xf0195f66)
/sys/src/9/port/page.c:129
 124		KMap *k;
 125		uchar ct;
 126		int i, hw, dontalloc, color;
 127	
 128		lock(&palloc);
>129		color = getpgcolor(va);
 130		hw = swapalloc.highwater;
 131		for(;;) {
 132			if(palloc.freecount > hw)
 133				break;
 134			if(up->kp && palloc.freecount > 0)
acid: src(0xf01a683c)
/sys/src/libc/386/memmove.s:32
 27	_forward:
 28		MOVL	BX, CX
 29		CLD
 30		SHRL	$2, CX
 31		ANDL	$3, BX
>32		REP;	MOVSL
 33	
 34	/*
 35	 * copy the rest, by bytes
 36	 */
 37		JEQ	_return			/* flags set by above ANDL */