Hello, makedumpfile version 1.5.5 is released. Your comments/patches are welcome. NOTE: 1. I was going to merge the patch set below to address mmap() issues as I said in this thread: http://lists.infradead.org/pipermail/kexec/2013-November/010354.html 1. Fix the fractional page issue 2. Introduce fall back path 3. Add --non-mmap option However, the first one is under testing now and more time is needed, so I decided to postpone it to v1.5.6. I think it's OK because v1.5.5 can avoid the fractional page issue with the second patch. 2. At first, the supported kernel will be updated to 3.12, but I found an issue while testing for v1.5.5, which seems that the page filtering works wrongly on kernel 3.12. I couldn't investigate this yet and it will take some time to finish it. Therefore, the latest supported kernel version is 3.11 in v1.5.5. Changelog: o New feature - [PATCH v2] Add support to module data structures. (by Aruna Balakrishnaiah) 7dc6cb6 - [PATCH] makedumpfile header to show LZO/snappy/zlib. (by Dave Anderson) 3205967 - [PATCH] Add --non-mmap option to disable mmap() manually. (by Atsushi Kumagai) a895dc8 o Bugfix - [PATCH v3 1/7] xen: Improve calculation of beginning of virtual address space. (by Daniel Kiper) 8c7c55e - [PATCH v3 2/7] elf: Properly check buf size in get_pt_note_info(). (by Daniel Kiper) fea1406 - [PATCH v3 3/7] xen: Take into account new frame table address since Xen 4.3. (by Daniel Kiper) f20f281 - [PATCH v3 4/7] xen: Enforce page size when it could not be established by other means. (by Daniel Kiper) f40c0fe - [PATCH v2] calculate cyclic buffer size according to info->num_dumpfile. (by Maxim Uvarov) 3f1ec1e - [PATCH] Add vmap_area_list definition for ppc/ppc64. (by Baoquan He) 150b58e - [PATCH v2] dump-dmesg: Understand >= v3.11-rc4 dmesg. (by Lubomir Rintel) a01b663 - [PATCH v5] Support to filter dump for kernels that use CONFIG_SPARSEMEM_VMEMMAP. (by Hari Bathini) bcdba92 - [PATCH v2 1/3] Add cache_init() call to initial_xen(). (by Daniel Kiper) 4225ee8 - [PATCH v2 2/3] Disable cyclic mode for every Xen crash dump. (by Daniel Kiper) 587cc88 - [PATCH v2 3/3] Move cyclic mode check from initial() to initial_xen(). (by Daniel Kiper) 00ec61f - [PATCH] Update pfn_cyclic when the cyclic buffer size is corrected. (by Atsushi Kumagai) a785fa7 - [PATCH] Use divideup() to calculate maximum required bitmap size. (by HATAYAMA Daisuke) f8c8218 - [PATCH 1/2] sadump: correct buffer size for GUID EFI text representation. (by HATAYAMA Daisuke) 1437b20 - [PATCH 2/2] sadump: convert the first three fields of EFI GUID from little-endian into big-endian. (by HATAYAMA Daisuke) 6f9b722 - [PATCH 1/2] cache: Allocate buffers at initialization to detect malloc() failure. (by HATAYAMA Daisuke) 92563d7 - [PATCH 2/2] cache: Reuse entry in pending list. (by HATAYAMA Daisuke) e23dc0a - [PATCH] Fall back to read() when mmap() fails. (by Atsushi Kumagai) 7c770ed - [PATCH] Add a existence check of symbols for --dump-dmesg. (by Atsushi Kumagai) e1b2913 - [PATCH] Fix the installation directory in spec file. (by Atsushi Kumagai) 9ccac12 o Cleanup - [PATCH v3 5/7] Do not break progress messages. (by Daniel Kiper) 74da476 - [PATCH v3 6/7] Mute some compiler warnings. (by Daniel Kiper) c16532e - [PATCH v3 7/7] Use elf_getshdrstrndx() instead of elf_getshstrndx(). (by Daniel Kiper) 16ae98a - [PATCH 1/2] Assign non-printable value as short options. (by Baoquan He) bd67c1d - [PATCH 2/2] Add help and man message for '--help'. (by Baoquan He) eb708ce - [PATCH v2] "make install" assumes directories exist. (by Nick Bartos) b0e1f0e - [PATCH] Cleanup: Mute some warnings about snappy. (by Atsushi Kumagai) f7a5099 - [PATCH] Cleanup: Add a comment for unused diskdump flag. (by Atsushi Kumagai) 1623a05 - [PATCH v2] Improve progress information for huge memory system. (by HATAYAMA Daisuke) 20ecc08 - [PATCH v2 1/2] Use memset() to improve the 1st bitmap initialization performance. (by HATAYAMA Daisuke) 72d9d06 - [PATCH v2 2/2] Write out a whole part of the 1st bitmap before entering cyclic process. (by HATAYAMA Daisuke) 363d5 - [PATCH] Enhance bitmap writting function in reassemble mode. (by Jingbai Ma) 6f6eb40 Explanation of makedumpfile: To shorten the size of the dumpfile and the time of creating the dumpfile, makedumpfile copies only the necessary pages for analysis to the dumpfile from /proc/vmcore. You can specify the kind of unnecessary pages with dump_level. If you want to shorten the size further, enable the compression of the page data. Download: You can download the latest makedumpfile from the following URL. Details of the change are written on the git page of the following site. https://sourceforge.net/projects/makedumpfile/ Method of installation: You can compile the makedumpfile command as follows; 1. "tar -zxvf makedumpfile-x.y.z.tar.gz" 2. "cd makedumpfile-x.y.z" 3. "make; make install" Usage: makedumpfile [-c] [-E] [-d dump_level] [-x vmlinux] dump_mem dump_file Example: If you want to exclude pages filled by zero, cache pages, user pages and free pages and to enable compression, please execute the following command. # makedumpfile -c -d 31 /proc/vmcore dumpfile Thanks Atsushi Kumagai
