)]}'
{
  "log": [
    {
      "commit": "b089f4a68eccd9782c89262c0d7cae146d5a8a40",
      "tree": "a84874a801e54dd89e5093392aedf49cece4cb11",
      "parents": [
        "a3ea8ac8468f5c7fc65684331dfba3260d5b2d93"
      ],
      "author": {
        "name": "Vivek Goyal",
        "email": "vgoyal@in.ibm.com",
        "time": "Sat Jun 25 14:58:15 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Jun 25 16:24:52 2005 -0700"
      },
      "message": "[PATCH] kdump: Documentation for Kdump\n\nThis patch contains the documentation for the kexec based crash dump tool.\n\nQuick kdump-howto\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\n1) Download and build kexec-tools.\n\n2) Download and build the latest kexec/kdump (-mm) kernel patchset.\n   Two kernels need to be built in order to get this feature working.\n\n  A) First kernel:\n   a) Enable \"kexec system call\" feature:\n\tCONFIG_KEXEC\u003dy\n   b) Physical load address (use default):\n\tCONFIG_PHYSICAL_START\u003d0x100000\n   c) Enable \"sysfs file system support\":\n\tCONFIG_SYSFS\u003dy\n   d) Boot into first kernel with the command line parameter \"crashkernel\u003dY@X\":\n      For example: \"crashkernel\u003d64M@16M\".\n\n  B) Second kernel:\n   a) Enable \"kernel crash dumps\" feature:\n\tCONFIG_CRASH_DUMP\u003dy\n   b) Physical load addreess, use same load address as X in \"crashkernel\"\n      kernel parameter in d) above, e.g., 16 MB or 0x1000000.\n\tCONFIG_PHYSICAL_START\u003d0x1000000\n   c) Enable \"/proc/vmcore support\" (Optional, in Pseudo filesystems).\n\tCONFIG_PROC_VMCORE\u003dy\n\n3) Boot into the first kernel.\n\n4) Load the second kernel to be booted using:\n\n   kexec -p \u003csecond-kernel\u003e --crash-dump --args-linux --append\u003d\"root\u003d\u003croot-dev\u003e\n   maxcpus\u003d1 init 1\"\n\n5) System reboots into the second kernel when a panic occurs. A module can be\n   written to force the panic, for testing purposes.\n\n6) See Documentation/kdump.txt for how to read the first kernel\u0027s\n   memory image and how to analyze it.\n\nSigned-off-by: Hariprasad Nellitheertha \u003chari@in.ibm.com\u003e\nSigned-off-by: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: randy_dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Maneesh Soni \u003cmaneesh@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    }
  ]
}