ChangeSet 1.2321.2.2, 2005/03/31 16:10:45-08:00, [EMAIL PROTECTED]
[IA64] fix for unwind problem through dispatch_illegal_op_fault
Here is the patch worked out with David Mosberger to fix the unwind info
for dispatch_illegal_op_fault in ivt.S. Before adding this patch, an
illegal op in the kernel would not show a complete stack trace in the
oops message.
Add PT_REGS_UNWIND_INFO to dispatch_illegal_op_fault to allow stack
unwind to continue through that stack level when kernel code commits an
illegal operation.
Signed-off-by: Bob Montgomery <[EMAIL PROTECTED]>
Signed-off-by: Tony Luck <[EMAIL PROTECTED]>
ivt.S | 3 +++
1 files changed, 3 insertions(+)
diff -Nru a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
--- a/arch/ia64/kernel/ivt.S 2005-03-31 18:15:06 -08:00
+++ b/arch/ia64/kernel/ivt.S 2005-03-31 18:15:06 -08:00
@@ -957,6 +957,8 @@
* element, followed by the arguments.
*/
ENTRY(dispatch_illegal_op_fault)
+ .prologue
+ .body
SAVE_MIN_WITH_COVER
ssm psr.ic | PSR_DEFAULT_BITS
;;
@@ -969,6 +971,7 @@
mov out0=ar.ec
;;
SAVE_REST
+ PT_REGS_UNWIND_INFO(0)
;;
br.call.sptk.many rp=ia64_illegal_op_fault
.ret0: ;;
-
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