======================= makedumpfile's README ======================= * REQUIREMENTS Please download the following library file and install it exactly as below; do NOT use "make install". - elfutils-0.125.tar.gz The "make install" of elfutils installs some commands (ld, readelf, etc.), and compiling problems sometimes happen due to using the installed commands. To install only the library & header files, use the following method: # tar -zxvf elfutils-0.125.tar.gz # cd elfutils-0.125 # ./configure # make # # mkdir /usr/local/include/elfutils/ # cp ./libdw/libdw.h /usr/local/include/elfutils/libdw.h # cp ./libdw/dwarf.h /usr/local/include/dwarf.h # cp ./libelf/libelf.h /usr/local/include/libelf.h # cp ./libelf/gelf.h /usr/local/include/gelf.h # # cp ./libelf/libelf.a /usr/local/lib/libelf.a # cp ./libdw/libdw.a /usr/local/lib/libdw.a # cp ./libasm/libasm.a /usr/local/lib/libasm.a # cp ./libebl/libebl.a /usr/local/lib/libebl.a # * BUILD & INSTALL 1.Get the latest makedumpfile from the following site: https://sourceforge.net/projects/makedumpfile/ 2.Uncompress the tar file: # tar -zxvf makedumpfile-x.y.z.tar.gz 3.Enter the makedumpfile subdirectory: # cd makedumpfile-x.y.z 4.Build, and install: # make; make install * SUPPORTED KERNELS This makedumpfile supports the following kernels. | FLATMEM | DISCONTIGMEM | SPARSEMEM |-------------------+-------------------+------------------- Kernel| | x86| | PPC| | x86| | PPC| | x86| | PPC Version| x86| _64|ia64| 64| x86| _64|ia64| 64| x86| _64|ia64| 64 -------+----+----+----+----+----+----+----+----+----+----+----+---- 2.6.15 | OK | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- 2.6.16 | OK | OK | -- | | -- | OK | OK | -- | -- | | -- | 2.6.17 | OK | OK | -- | | -- | OK | -- | -- | -- | OK | -- | 2.6.18 | OK | OK | -- | OK | -- | OK | OK | -- | -- | OK | OK | OK 2.6.19 | OK | OK | -- | OK | OK | OK | | -- | OK | OK | OK | OK 2.6.20 | OK | OK | -- | #1 | OK | OK | OK | -- | OK | OK | OK | #1 21-rc5 | OK | OK | -- | OK | OK | OK | OK | -- | OK | OK | OK | OK 2.6.21 | OK | OK | -- | | OK | OK | OK | -- | OK | OK | OK | 2.6.22 | OK | OK | -- | | OK | OK | OK | -- | OK | OK | OK | 2.6.23 | OK | OK | -- | | OK | OK | OK | -- | OK | OK | OK | 2.6.24 | OK | OK | -- | | OK | OK | OK | -- | OK | OK | OK | 2.6.25 | OK | ** | -- | | | ** | OK | -- | OK | OK | OK | 2.6.26 | OK | ** | -- | | | ** | OK | -- | OK | OK | OK | 2.6.27 | OK | ** | -- | | | ** | OK | -- | #2 | OK | OK | 2.6.28 | OK | ** | -- | | | ** | OK | -- | OK | OK | OK | 2.6.29 | OK | ** | -- | | | ** | OK | -- | OK | OK | OK | 2.6.30 | OK | ** | -- | | | ** | OK | -- | OK | OK | OK | 2.6.31 | OK | ** | -- | | | ** | | -- | | OK | OK | OK : Support. -- : Not support. Empty : Not test yet. TODO : TODO. #1 : Both kexec/kdump does not work with PPC64 2.6.20 kernels. This is a known problem fixed with later kernels. #2 : kdump does not work with i386 sparsemem 2.6.27 kernels. This is a known problem fixed with later kernels. ** : The deleted memory model. On x86_64, both FLATMEM and DISCONTIGMEM have been deleted since linux-2.6.25. * USAGE Please see "man makedumpfile" or "makedumpfile -h". * TODO 1. Supporting more kernels. 2. Fixing the report message. (Now, it sometimes counts the number of free_pages duplicating zero-pages if creating an ELF dumpfile.) * NOTE 1. A vmcoreinfo file should be generated by the makedumpfile which is used for dump filtering. If installing the latest makedumpfile, the vmcoreinfo file should be regenerated by it. Actually, makedumpfile v1.2.0 or later cannot work by vmcoreinfo file which is generated by v1.1.9 or before. 2. If using linux-2.6.24 and kexec-tools-testing-20061214, /proc/vmcore contains vmcoreinfo data. So it is possible to create a dumpfile without -x option (or -i option) like the following: # makedumpfile -d 31 /proc/vmcore dumpfile 3. On makedumpfile-1.2.5 or before, both '--xen-syms' and '--xen-vmcoreinfo' excluded Xen user domain pages. Since makedumpfile-1.2.6, '-X' option have been added for excluding Xen user domain pages, and these options does not exclude Xen user domain pages. So user should specify '-X' option for excluding Xen user domain pages. * FAQ 001: It cannot be compiled with the following messages: # make gcc -g -O2 -Wall -D__x86_64__ -c -o ./x86.o ./x86.c gcc -g -O2 -Wall -D__x86_64__ -c -o ./x86_64.o ./x86_64.c gcc -g -O2 -Wall -D__x86_64__ -c -o ./ia64.o ./ia64.c gcc -g -O2 -Wall -D__x86_64__ -c -o ./ppc64.o ./ppc64.c gcc -g -O2 -Wall -D_FILE_OFFSET_BITS=64 -DVERSION='"1.1.4"' -DRELEASE_DATE='"08 June 2007"' -D__x86_64__ x86.o x86_64.o ia64.o ppc64.o-o makedumpfile makedumpfile.c -static -ldw -lelf -lz /tmp/ccYv3cGF.o: In function `get_debug_info': /tmp/makedumpfile/makedumpfile.c:1341: undefined reference to `elf_getshstrndx' collect2: ld returned 1 exit status make: *** [makedumpfile] Error 1 # The compiler cannot find elf_getshstrndx() because it tries searching for it only from /usr/lib/libelf.a though elf_getshstrndx() is archived in /usr/local/lib/libelf.a. To solve the problem, add the option (-L/usr/local/lib/) to CFLAGS of Makefile like the following: CFLAGS = -g -O2 -Wall -D_FILE_OFFSET_BITS=64 -L/usr/local/lib/ \ -DVERSION='"$(VERSION)"' -DRELEASE_DATE='"$(DATE)"' * REFERENCES https://sourceforge.net/projects/makedumpfile/ http://lists.infradead.org/pipermail/kexec/ https://lists.linux-foundation.org/pipermail/fastboot/ * BUG REPORT If finding some bugs, please send the information to the following: Ken'ichi Ohmichi Masaki Tachibana kexec-ml