[v2] kgdb: x86: fix breakpoint removal problems

[PATCH v2 0/2] kgdb: x86: fix breakpoint removal problems

Florian Rommel posted 2 patches 1 year, 5 months ago

Diff against v1
Download series mbox

arch/x86/kernel/kgdb.c    | 38 ++++++++++++++++++++++++++++++++++++++
include/linux/kgdb.h      |  4 ++++
init/main.c               |  1 +
kernel/debug/debug_core.c |  7 ++++++-
4 files changed, 49 insertions(+), 1 deletion(-)

Expand all Fold all

[PATCH v2 0/2] kgdb: x86: fix breakpoint removal problems

Posted by Florian Rommel 1 year, 5 months ago

This series fixes two problems with KGDB on x86 concerning the removal
of breakpoints, causing the kernel to hang.  Note that breakpoint
removal is not only performed when explicitly deleting a breakpoint,
but also happens before continuing execution or single stepping.

v2:
 - Add missing stub implementation for kgdb_after_mark_readonly in [1/2]
   when KGDB disabled
 - Link to v1: https://lore.kernel.org/all/20240811232208.234261-1-mail@florommel.de/

Florian Rommel (2):
  x86/kgdb: convert early breakpoints to poke breakpoints
  x86/kgdb: fix hang on failed breakpoint removal

 arch/x86/kernel/kgdb.c    | 38 ++++++++++++++++++++++++++++++++++++++
 include/linux/kgdb.h      |  4 ++++
 init/main.c               |  1 +
 kernel/debug/debug_core.c |  7 ++++++-
 4 files changed, 49 insertions(+), 1 deletion(-)

-- 
2.46.0