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Subject[ANNOUNCE] mdb: version 2.6.27-rc3 released
ChangesLog:
2.6.27-rc3 1/29 mdb: add machine restart/genapic export

add machine restart and genapic exports for the module based
build of the debugger. genapic is exported here rather than
arch/x86/mach-generic/probes.c because EXPORT_SYMBOL does not
work correctly when used inside of files in this directory in
the 2.6.27 tree.


2.6.27-rc3 2/29 mdb: add debug directory Makefile

add a debug directory makefile for loadable kernel debugger modules.

2.6.27-rc3 3/29 mdb: add mdb kernel debugger Makefile

add the makefile for the MDB kernel debugger

2.6.27-rc3 4/29 mdb: checkpatch.pl fixes/add SSB support

correct checkpatch.pl global declarations, volatile declarations moved
to the ia32 specific file. add focus processor support for SSB. add
sld update functions for SSB.


2.6.27-rc3 5/29 mdb: add external defines for debugger base

add architecture independent external defines.

2.6.27-rc3 6/29 mdb: add main include configuration file

add top level mdb.h include file. added focus processor internal tracing
and debugging defines.

2.6.27-rc3 7/29 mdb: fix APIC ICR directed NMI lockup on SMP systems


fixed the APIC ICR directed NMI lockup problem seen on certain laptop systems
when sending directed NMI exceptions over the APIC ICC bus.

added exception forking logic into debug_lock to handle nested exceptions
and concurrent int1 debugger exceptions. instrumented better detection
and quiescence logic for NMI xcalls.

fixed external defines. fixed a large number of checkpatch.pl reports of
global variables. moved volatile and __asm__ __volatile__ references into
mdb-ia32.c since this file is architecture specific to ia32 systems.

added focus processor support for SSB, trace, and proceed processing to
maintain processor focus for global breakpoints. added additional
processor hold states during acquisition of the debugger lock for
cases where multiple int1 exceptions.

added SSB (step til branch) support. added SSB focus support. (NOTE:
SSB was previously defined but the code was not fully instrumented in
Linux.

TO-DO

Need to add TSS gates to all exceptions in ia32 since current GDT only
uses trap gates. TSS gates allow the processor to switch to a known
good stack rather than expect the double fault handler to do so.




2.6.27-rc3 8/29 mdb: add includes and external defines for ia32 specific code

added includes and external defines for ia32 specific code


2.6.27-rc3 9/29 mdb: add includes and external function prototypes for ia32 specific code

added includes and external function prototypes for ia32 specific code


2.6.27-rc3 10/29 mdb: add SSB jump detection support

added JMP, CALL, RET, J%% detection into the ia32 disassembler for
SSB support and branch detection.


2.6.27-rc3 11/29 mdb: add includes and external defines for keyboard specific code

added includes and external defines for keyboard specific code


2.6.27-rc3 12/29 mdb: add alternate debugger, accelerator, and keystroke command registry

added the command registry for registering debugger and accelerator
keystroke commands. corrected a large number of checkpatch.pl
reported issues.


2.6.27-rc3 13/29 mdb: add includes and external function prototypes debugger registry

added includes and external function prototypes debugger registry


2.6.27-rc3 14/29 mdb: add logic processing module for mdb/checkpath.pl fixes

added mathematical logic parser and conditional breakpoint
support. corrected large number of checkpatch.pl reported
issues.


2.6.27-rc3 15/29 mdb: notify_die fixes/add SSB support

added complete notify_die states and state support for SSB command.


2.6.27-rc3 16/29 mdb: add touch_nmi_watchdog calls to keyboard poll

added clocksource nmi functions and nmi watchdog update
logic to correct soft cpu errors due to nmi watchdog
timers.




2.6.27-rc3 17/29 mdb: update operating system defines

updated and included operating system dependent defines


2.6.27-rc3 18/29 mdb: add global external procedure defines

added global external procedure defines. added and updated volatile
declarations. added and updated debug_lock synchronization and SSB
command support.



2.6.27-rc3 19/29 mdb: adding notify_die handler for keyboard debugger entry

added module support for keyboard debugger entry point and
notify_die entry point.



2.6.27-rc3 20/29 mdb: export the console redirection handle

export the console redirection handle to allow
the debugger screen to becoime visible again during exceptions. Export
of this variable allows the debugger to switch to the current screen
in order to enable the debugging console on systems with a redirected
system console.


2.6.27-rc3 21/29 mdb: disable console warnings if the debugger is present.

disable the console warning checks if the debugger is active
because the debugger is dependent in the console output
functions in order to provide console display.


2.6.27-rc3 22/29 mdb: export kernel_text_address

export the kernel_text_address() to allow symbol searching and
matches of symbolic names contained the the kernel symbol table.


2.6.27-rc3 23/29 mdb: export kallsyms functions

export the kallsyms lookup functions to the module based debugger.
add debugger specific lookup to search for matching strstr text
fragments for entered search terms.



2.6.27-rc3 24/29 mdb: add export function to module.c

add the ability to scan and display the loaded module list
inside the debugger.


2.6.27-rc3 25/29 mdb: add a notify_die handler to panic.c

add a notify_die handler to hook the panic entry point prior to
Linux "execve"-ing another kernel for crash analysis.


2.6.27-rc3 26/29 mdb: export task_curr

export the task_curr function to the module based kernel debugger to enable
process back tracing and state display.


2.6.27-rc3 27/29 mdb: export the clocksource nmi watchdog

export the clocksource nmi watchdog for the module based kernel debugger.
This function is called to prevent watchdog events while the debugger
has processors in suspended states during active debugging sessions.


2.6.27-rc3 28/29 mdb: change mdb name to "Merkey's Linux Kernel Debugger"

change mdb name to "Merkey's Linux Kernel Debugger". update description
to add very simple and minimal instructions on entering the debugger and
access to the internal help panels.


2.6.27-rc3 29/29 mdb: add /debug directory to main Makefile

add the /debug directory to the main Makefile for module-based kernel
debuggers.


Site : http://www.wolfmountaingroup.org
FTP : ftp://www.wolfmountaingroup.org/pub/mdb/mdb-2.6.27-rc3-ia32-08-13-08.patch


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