| commit | a67798cd7bb130bf37f5ffb28f3260f4c10232db | |
| author | Martin Hicks <mort@sgi.com> | |
| Fri, 30 Jan 2009 16:50:54 +0000 (30 10:50 -0600) | ||
| committer | H. Peter Anvin <hpa@zytor.com> | |
| Tue, 3 Feb 2009 05:18:03 +0000 (2 21:18 -0800) | ||
| tree | 4f6e19711f02fd0b860cb428a264eee15b6b3ff1 | treesnapshot (tar.gz zip) |
| parent | 10b888d6cec2688e65e9e128b14bf98ecd199da2 | commitdiff |
x86: push old stack address on irqstack for unwinder
Impact: Fixes dumpstack and KDB on 64 bits
This re-adds the old stack pointer to the top of the irqstack to help
with unwinding. It was removed in commit d99015b1abbad743aa049b439c1e1dede6d0fa49
as part of the save_args out-of-line work.
Both dumpstack and KDB require this information.
Signed-off-by: Martin Hicks <mort@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Impact: Fixes dumpstack and KDB on 64 bits
This re-adds the old stack pointer to the top of the irqstack to help
with unwinding. It was removed in commit d99015b1abbad743aa049b439c1e1dede6d0fa49
as part of the save_args out-of-line work.
Both dumpstack and KDB require this information.
Signed-off-by: Martin Hicks <mort@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| arch/x86/kernel/entry_64.S | diffblobblamehistory |