Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

In outofworld, keep $sp for DDB case if it looks like a kernel address 

so the stacktrace is ok.
This commit is contained in:
jeffs 2000-09-08 07:24:42 +00:00
parent 6bc11dce71
commit bbcf1beea0
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/arch/mips/mips/locore_mips3.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore_mips3.S,v 1.47 2000/09/07 20:31:02 jeffs Exp $ */ /* $NetBSD: locore_mips3.S,v 1.48 2000/09/08 07:24:42 jeffs Exp $ */
/* /*
* Copyright (c) 1997 Jonathan Stone (hereinafter referred to as the author) * Copyright (c) 1997 Jonathan Stone (hereinafter referred to as the author)
@ -1220,16 +1220,20 @@ LEAF_NOPROFILE(mips3_TLBMissException)
eret eret
outofworld: outofworld:
/* Ensure we have a valid sp so panic has a chance */ /* eret to panic so shutdown can use K2. Try to ensure valid $sp. */
la a0, 9f # string la a0,_C_LABEL(panic)
la t0,_C_LABEL(panic)
dmfc0 a2, MIPS_COP_0_EXC_PC dmfc0 a2, MIPS_COP_0_EXC_PC
move a1, sp move a1, sp
sll k0, k0, PGSHIFT sll k0, k0, PGSHIFT
dmtc0 t0, MIPS_COP_0_EXC_PC # return to panic dmtc0 a0, MIPS_COP_0_EXC_PC # return to panic
li k1, VM_MIN_KERNEL_ADDRESS li k1, VM_MIN_KERNEL_ADDRESS
addu a3, k0, k1 addu a3, k0, k1
#if defined(DDB)
bltz sp, 1f # for ddb try to keep frame
nop
#endif
la sp, start # set sp to a valid place la sp, start # set sp to a valid place
1: la a0, 9f # string
eret eret
MSG("TLB out of universe: ksp %p epc %p vaddr %p") MSG("TLB out of universe: ksp %p epc %p vaddr %p")