Re: [Linux-ia64] Kernel panic in dtlb_fault

Uros Prestor
2001-01-11T20:12:38Z

David Mosberger wrote:

> Are you sure you picked up the new kernel? Try "objdump -d" on
> vmlinux and verify that itlb_fault ends with "b0" being restored.

This is the disassembly output of itlb_fault:
e000000000500400 <itlb_fault>:
e000000000500400: 00 80 00 28 24 04 [MII] mov r16=cr20
e000000000500406: d0 01 00 62 00 e0 mov r29°
e00000000050040c: 03 00 cc 00 mov r31=pr
e000000000500410: 05 88 00 32 24 44 [MLX] mov r17=cr25
e000000000500416: 00 00 00 00 60 c0 movl r30=0xe00000000
0500420;;
e00000000050041c: 03 02 22 68
e000000000500420: 0a 90 00 22 18 10 [MMI] ld8 r18=[r17];;
e000000000500426: 00 00 00 02 00 c0 nop.m 0x0
e00000000050042c: 00 90 00 50 tbit.z p6,p0=r18,0
e000000000500430: 11 00 00 00 01 00 [MIB] nop.m 0x0
e000000000500436: 00 00 00 02 00 03 nop.i 0x0
e00000000050043c: 98 0c 00 41 (p06) br.cond.spnt.many e0
000000005010c0 <page_fault>;;
e000000000500440: 0a 00 48 00 2f 04 [MMI] itc.i r18;;
e000000000500446: 00 00 00 02 00 00 nop.m 0x0
e00000000050044c: d0 09 00 07 mov b0=r29
e000000000500450: 11 00 00 00 01 00 [MIB] nop.m 0x0
e000000000500456: f0 ff c0 bf 05 00 mov pr=r31,0xfffffff
ffffffffe
e00000000050045c: 00 00 20 00 rfi;;

Seems like the b0 register is getting restored correctly.

Uros

--
Uros Prestor
uros@turbolinux.com