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| author | Martin Hicks <mort@sgi.com> | 2009-01-30 10:50:54 -0600 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-02-02 21:18:03 -0800 |
| commit | a67798cd7bb130bf37f5ffb28f3260f4c10232db (patch) | |
| tree | 4f6e19711f02fd0b860cb428a264eee15b6b3ff1 /Documentation/nommu-mmap.txt | |
| parent | 10b888d6cec2688e65e9e128b14bf98ecd199da2 (diff) | |
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>
Diffstat (limited to 'Documentation/nommu-mmap.txt')
0 files changed, 0 insertions, 0 deletions