| commit | 6cac5a924668a56c7ccefc345805f1fe0536a90e | [log] [tgz] |
|---|---|---|
| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | Sun Mar 29 19:56:29 2009 -0700 |
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | Fri May 08 15:51:03 2009 -0700 |
| tree | 0e15fe317a21ac40244cbf38cdeaa36f4c9837fd | |
| parent | 6b2e8523df148c15ea5abf13075026fb8bdb3f86 [diff] |
xen/x86-64: fix breakpoints and hardware watchpoints Native x86-64 uses the IST mechanism to run int3 and debug traps on an alternative stack. Xen does not do this, and so the frames were being misinterpreted by the ptrace code. This change special-cases these two exceptions by using Xen variants which run on the normal kernel stack properly. Impact: avoid crash or bad data when IST trap is invoked under Xen Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>