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authorHeiko Carstens <heiko.carstens@de.ibm.com>2011-12-27 05:27:17 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-27 05:27:12 -0500
commit679e2ea73366cac81ede4104e6d3048cb806df2c (patch)
treebc287f1b04be62e998094b653bad040289f9a5ca /Documentation/s390
parentd68bddb7329a4d47d950d6b0745a7e274d230ed4 (diff)
[S390] Remove Kerntypes leftovers
Remove last traces of our kerntypes patch which was always an addon patch which never got upstream. Somehow a few bits got upstream anyway. Since kerntypes aren't used anymore and lcrash isn't maintained (for s390 at least) remove the last traces of kerntypes that somehow went upstream. Also remove the documentation that mentions lcrash. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'Documentation/s390')
-rw-r--r--Documentation/s390/Debugging390.txt34
1 files changed, 0 insertions, 34 deletions
diff --git a/Documentation/s390/Debugging390.txt b/Documentation/s390/Debugging390.txt
index efe998becc5b..462321c1aeea 100644
--- a/Documentation/s390/Debugging390.txt
+++ b/Documentation/s390/Debugging390.txt
@@ -41,7 +41,6 @@ ldd
41Debugging modules 41Debugging modules
42The proc file system 42The proc file system
43Starting points for debugging scripting languages etc. 43Starting points for debugging scripting languages etc.
44Dumptool & Lcrash
45SysRq 44SysRq
46References 45References
47Special Thanks 46Special Thanks
@@ -2455,39 +2454,6 @@ jdb <filename> another fully interactive gdb style debugger.
2455 2454
2456 2455
2457 2456
2458Dumptool & Lcrash ( lkcd )
2459==========================
2460Michael Holzheu & others here at IBM have a fairly mature port of
2461SGI's lcrash tool which allows one to look at kernel structures in a
2462running kernel.
2463
2464It also complements a tool called dumptool which dumps all the kernel's
2465memory pages & registers to either a tape or a disk.
2466This can be used by tech support or an ambitious end user do
2467post mortem debugging of a machine like gdb core dumps.
2468
2469Going into how to use this tool in detail will be explained
2470in other documentation supplied by IBM with the patches & the
2471lcrash homepage http://oss.sgi.com/projects/lkcd/ & the lcrash manpage.
2472
2473How they work
2474-------------
2475Lcrash is a perfectly normal program,however, it requires 2
2476additional files, Kerntypes which is built using a patch to the
2477linux kernel sources in the linux root directory & the System.map.
2478
2479Kerntypes is an objectfile whose sole purpose in life
2480is to provide stabs debug info to lcrash, to do this
2481Kerntypes is built from kerntypes.c which just includes the most commonly
2482referenced header files used when debugging, lcrash can then read the
2483.stabs section of this file.
2484
2485Debugging a live system it uses /dev/mem
2486alternatively for post mortem debugging it uses the data
2487collected by dumptool.
2488
2489
2490
2491SysRq 2457SysRq
2492===== 2458=====
2493This is now supported by linux for s/390 & z/Architecture. 2459This is now supported by linux for s/390 & z/Architecture.