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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 17:29:44 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 17:29:44 +0100 |
| commit | a20ae85abaefb02cc0edf19c34f78d19437c1cf1 (patch) | |
| tree | 13174b718a7f7b955b7d79f5427506ad62a3054e /Documentation | |
| parent | Merge tag 'ktest-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/roste... (diff) | |
| parent | kdb: Add message about CONFIG_DEBUG_RODATA on failure to install breakpoint (diff) | |
| download | linux-a20ae85abaefb02cc0edf19c34f78d19437c1cf1.tar.xz linux-a20ae85abaefb02cc0edf19c34f78d19437c1cf1.zip | |
Merge tag 'for_linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull KGDB/KDB updates from Jason Wessel:
"Fixes:
- Fix KDB keyboard repeat scan codes and leaked keyboard events
- Fix kernel crash with kdb_printf() for users who compile new
kdb_printf()'s in early code
- Return all segment registers to gdb on x86_64
Features:
- KDB/KGDB hook the reboot notifier and end user can control if it
stops, detaches or does nothing (updated docs as well)
- Notify users who use CONFIG_DEBUG_RODATA to use hw breakpoints"
* tag 'for_linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
kdb: Add message about CONFIG_DEBUG_RODATA on failure to install breakpoint
kdb: Avoid using dbg_io_ops until it is initialized
kgdb,debug_core: add the ability to control the reboot notifier
KDB: Fix usability issues relating to the 'enter' key.
kgdb,debug-core,gdbstub: Hook the reboot notifier for debugger detach
kgdb: Respect that flush op is optional
kgdb: x86: Return all segment registers also in 64-bit mode
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/kgdb.tmpl | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl index d71b57fcf116..4ee4ba3509fc 100644 --- a/Documentation/DocBook/kgdb.tmpl +++ b/Documentation/DocBook/kgdb.tmpl @@ -362,6 +362,23 @@ </para> </para> </sect1> + <sect1 id="kgdbreboot"> + <title>Run time parameter: kgdbreboot</title> + <para> The kgdbreboot feature allows you to change how the debugger + deals with the reboot notification. You have 3 choices for the + behavior. The default behavior is always set to 0.</para> + <orderedlist> + <listitem><para>echo -1 > /sys/module/debug_core/parameters/kgdbreboot</para> + <para>Ignore the reboot notification entirely.</para> + </listitem> + <listitem><para>echo 0 > /sys/module/debug_core/parameters/kgdbreboot</para> + <para>Send the detach message to any attached debugger client.</para> + </listitem> + <listitem><para>echo 1 > /sys/module/debug_core/parameters/kgdbreboot</para> + <para>Enter the debugger on reboot notify.</para> + </listitem> + </orderedlist> + </sect1> </chapter> <chapter id="usingKDB"> <title>Using kdb</title> |