diff options
author | Haren Myneni <haren@us.ibm.com> | 2005-08-03 01:08:18 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-03 01:16:45 -0400 |
commit | 5cb4cc0d8211c490537c8568001958fc76741312 (patch) | |
tree | 3a3844a79cff56d84ecafd65ba5d8da25e158d2b /mm/memory.c | |
parent | 0b2bfb4e7ff61f286676867c3508569bea6fbf7a (diff) |
[PATCH] Xmon bug fix for soft-reset
For soft reset during system hang, got an error "CPU did not take
control" for some CPUs even though they responded to soft-reset (called
SystemReset, die and called debugger - xmon). First these CPUs entered
into xmon by IPI callback and then got a soft-reset exception and
re-entered into xmon again. The first CPU which re-entered into xmon got
the output lock and made into xmon successfully without unlocking.
Hence, the next CPU(s) which re-entered into xmon try to acquire a lock
(get_output_lock). Therefore, we can not view state of those CPU(s).
[This is a simple, very low risk, obvious fix for an obvious bug, and
should go into 2.6.13. -- paulus]
Signed-off-by: Haren Myneni <hbabu@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions