)]}'
{
  "log": [
    {
      "commit": "454a3bbe9b75eb8cbddffcf383fbb8e97ea78f52",
      "tree": "d10cbe4a83a625908abf35581922b8ed3d6df2eb",
      "parents": [
        "74d91e3c6a66359bb754fb5d8a5b54fb6ba2f9a6"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Tue Jan 04 10:40:08 2011 -0200"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Wed Jan 05 14:52:01 2011 -0200"
      },
      "message": "perf test: Clarify some error reports in the open syscall test\n\nRebooted my devel machine, first thing I ran was perf test, that expects\ndebugfs to be mounted, test fails. Be more clear about it.\n\nAlso add missing newlines and add more informative message when\nsys_perf_event_open fails.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    },
    {
      "commit": "d854861c4292a4e675a5d3bfd862c5f7421c81e8",
      "tree": "59a4012085b68bb302c61a9ebb8bb81477b59d98",
      "parents": [
        "4eed11d5e24540dc133003b6e8f904cb747ac4bb"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Tue Jan 04 00:16:20 2011 -0200"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Tue Jan 04 00:32:06 2011 -0200"
      },
      "message": "perf test: Add test for counting open syscalls\n\nTo test the use of the perf_evsel class on something other than\nthe tools from where we refactored code to create it.\n\nIt calls open() N times and then checks if the event created to\nmonitor it returns N events.\n\n[acme@felicio linux]$ perf test\n 1: vmlinux symtab matches kallsyms: Ok\n 2: detect open syscall event: Ok\n[acme@felicio linux]$\n\nIt does.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Han Pingtian \u003cphan@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    },
    {
      "commit": "d3678758048308049cdad31ec3eae063be17c0db",
      "tree": "717d3995a21b4b60bf949b087eabb12a7a75a51c",
      "parents": [
        "3b01a413c196c91040d41c86e5b56f76bb369f74"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Tue Dec 21 23:38:37 2010 -0200"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Wed Dec 22 20:31:59 2010 -0200"
      },
      "message": "perf test: Look forward for symbol aliases\n\nNot just before, fixing these false positives:\n\n[acme@mica linux]$ perf test -v 1\n 1: vmlinux symtab matches kallsyms:\n--- start ---\nLooking at the vmlinux_path (6 entries long)\nUsing //lib/modules/2.6.37-rc5-00180-ge06b6bf/build/vmlinux for symbols\n0xffffffff81058dc0: diff name v: sys_vm86old k: sys_ni_syscall\n0xffffffff81058dc0: diff name v: sys_vm86 k: sys_ni_syscall\n0xffffffff81058dc0: diff name v: sys_subpage_prot k: sys_ni_syscall\n0xffffffff810b5f7c: diff name v: probe_kernel_write k: __probe_kernel_write\n0xffffffff810b5fe5: diff name v: probe_kernel_read k: __probe_kernel_read\n0xffffffff811bc380: diff name v: __memset k: memset\n0xffffffff81384a98: diff name v: __sched_text_start k: sleep_on_common\n0xffffffff81386750: diff name v: __sched_text_end k: _raw_spin_trylock\n0xffffffff8138cee8: diff name v: __irqentry_text_start k: do_IRQ\n0xffffffff8138f079: diff name v: __start_notes k: _etext\n0xffffffff8138f079: diff name v: __stop_notes k: _etext\n---- end ----\nvmlinux symtab matches kallsyms: FAILED!\n\n[acme@mica linux]$\n\nSome are weak functions, others are just markers, etc. They get in the rb tree\nwith the same addr, so we need to look around to find the symbol with the same\nname.\n\nWe were looking just at the previous entries with the same addr, look forward\ntoo.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Han Pingtian \u003cphan@redhat.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    },
    {
      "commit": "8035458fbb567ae138c77a5f710050107c6a7066",
      "tree": "0bd6e3730d96aa5d574e73d500f1820d2b195d8c",
      "parents": [
        "1967936d688c475b85d34d84e09858cf514c893c"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Mon May 17 15:51:10 2010 -0300"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Mon May 17 16:22:37 2010 -0300"
      },
      "message": "perf options: Type check OPT_BOOLEAN and fix the offenders\n\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    },
    {
      "commit": "1c6a800cde3b818fd8320b5d402f2d77d2948c00",
      "tree": "2feb2a077e0dbc8c0cb24a70e92ca1d1daaef817",
      "parents": [
        "5c0541d53ef3897494768decb09eb8f1087953a5"
      ],
      "author": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Thu Apr 29 18:58:32 2010 -0300"
      },
      "committer": {
        "name": "Arnaldo Carvalho de Melo",
        "email": "acme@redhat.com",
        "time": "Thu Apr 29 18:59:23 2010 -0300"
      },
      "message": "perf test: Initial regression testing command\n\nFirst an example with the first internal test:\n\n[acme@doppio linux-2.6-tip]$ perf test\n 1: vmlinux symtab matches kallsyms: Ok\n\nSo it run just one test, that is \"vmlinux symtab matches kallsyms\", and it was\nsuccessful.\n\nIf we run it in verbose mode, we\u0027ll see details about errors and extra warnings\nfor non-fatal problems:\n\n[acme@doppio linux-2.6-tip]$ perf test -v\n 1: vmlinux symtab matches kallsyms:\n--- start ---\nLooking at the vmlinux_path (5 entries long)\nNo build_id in vmlinux, ignoring it\nNo build_id in /boot/vmlinux, ignoring it\nNo build_id in /boot/vmlinux-2.6.34-rc4-tip+, ignoring it\nUsing /lib/modules/2.6.34-rc4-tip+/build/vmlinux for symbols\nMaps only in vmlinux:\n ffffffff81cb81b1-ffffffff81e1149b 0 [kernel].init.text\n ffffffff81e1149c-ffffffff9fffffff 0 [kernel].exit.text\n ffffffffff600000-ffffffffff6000ff 0 [kernel].vsyscall_0\n ffffffffff600100-ffffffffff6003ff 0 [kernel].vsyscall_fn\n ffffffffff600400-ffffffffff6007ff 0 [kernel].vsyscall_1\n ffffffffff600800-ffffffffffffffff 0 [kernel].vsyscall_2\nMaps in vmlinux with a different name in kallsyms:\n ffffffffff600000-ffffffffff6000ff 0 [kernel].vsyscall_0 in kallsyms as [kernel].0\n ffffffffff600100-ffffffffff6003ff 0 [kernel].vsyscall_fn in kallsyms as:\n*ffffffffff600100-ffffffffff60012f 0 [kernel].2\n ffffffffff600400-ffffffffff6007ff 0 [kernel].vsyscall_1 in kallsyms as [kernel].6\n ffffffffff600800-ffffffffffffffff 0 [kernel].vsyscall_2 in kallsyms as [kernel].8\nMaps only in kallsyms:\n ffffffffff600130-ffffffffff6003ff 0 [kernel].4\n---- end ----\nvmlinux symtab matches kallsyms: Ok\n[acme@doppio linux-2.6-tip]$\n\nIn the above case we only know the name of the non contiguous kernel ranges in\nthe address space when reading the symbol information from the ELF symtab in\nvmlinux.\n\nThe /proc/kallsyms file lack this, we only notice they are separate because\nthere are modules after the kernel and after that more kernel functions, so we\nneed to have a module rbtree backed by the module .ko path to get symtabs in\nthe vmlinux case.\n\nThe tool uses it to match by address to emit appropriate warning, but don\u0027t\nconsiders this fatal.\n\nThe .init.text and .exit.text ines, of course, aren\u0027t in kallsyms, so I left\nthese cases just as extra info in verbose mode.\n\nThe end of the sections also aren\u0027t in kallsyms, so we the symbols layer does\nanother pass and sets the end addresses as the next map start minus one, which\nsometimes pads, causing harmless mismatches.\n\nBut at least the symbols match, tested it by copying /proc/kallsyms to\n/tmp/kallsyms and doing changes to see if they were detected.\n\nThis first test also should serve as a first stab at documenting the\nsymbol library by providing a self contained example that exercises it\ntogether with comments about what is being done.\n\nMore tests to check if actions done on a monitored app, like doing mmaps, etc,\nmakes the kernel generate the expected events should be added next.\n\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n"
    }
  ]
}