I thought I compile it as the default configuration file you put there which is "O2"... OK, I am trying to re-compile it with O0.


On Thu, Sep 24, 2009 at 4:54 PM, stephane eranian <eranian@googlemail.com> wrote:
What is you try to compile libpfm with OPTIM=-O0?


On Thu, Sep 24, 2009 at 10:22 PM, Qingyuan Deng <ddqqyy@gmail.com> wrote:
> Starting program: /home/qdeng/pmu/perfmon2/libpfm-3.9/examples_v2.x/self
> [Thread debugging using libthread_db enabled]
> sycall base 333
> major version 2
> minor version 82
> [New Thread 0xb7eb96c0 (LWP 21252)]
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xb7eb96c0 (LWP 21252)]
> 0xb7f31613 in strlen () from /lib/tls/i686/cmov/libc.so.6
> (gdb) backtrace
> #0  0xb7f31613 in strlen () from /lib/tls/i686/cmov/libc.so.6
> #1  0x0804a0a1 in pfm_get_max_event_name_len (len=0xbfc9491c)
>     at pfmlib_common.c:916
> #2  0x08048d9b in main (argc=1, argv=0xbfc949d4) at self.c:106
> (gdb)
>
>
> On Thu, Sep 24, 2009 at 4:18 PM, stephane eranian <eranian@googlemail.com>
> wrote:
>>
>> What about you try libpfm/examples_v2.x/self.
>> Does it crash too?
>>
>>
>> On Thu, Sep 24, 2009 at 10:13 PM, Qingyuan Deng <ddqqyy@gmail.com> wrote:
>> > Hi Stephane,
>> > Do you mean mean the i value in "for(i =0; i <pfm_current->pme_count;
>> > i++) "
>> > in pfmlib_common.c?
>> >
>> > Then it is 0 while the program stops.
>> >
>> > Thanks!
>> > --------------------------------------------------------------------
>> > (gdb) b 1899
>> > Breakpoint 1 at 0x804ead1: file pfmon.c, line 1899.
>> > (gdb) r --help
>> > Starting program: /usr/local/bin/pfmon --help
>> > [Thread debugging using libthread_db enabled]
>> > [New Thread 0xb7de48d0 (LWP 20951)]
>> > [Switching to Thread 0xb7de48d0 (LWP 20951)]
>> >
>> > Breakpoint 1, main (argc=2, argv=0xbf841dc4) at pfmon.c:1900
>> > 1900        pfmon_initialize(argv);
>> > (gdb) s
>> > pfmon_initialize (argv=0xbf841dc4) at pfmon.c:1387
>> > 1387        pfmon_get_version();
>> > (gdb) n
>> > 1389        ret = pfmon_api_probe();
>> > (gdb) n
>> > 1390        if (ret) {
>> > (gdb) n
>> > 1402        if (options.pfm_version != PERFMON_VERSION_20)
>> > (gdb) n
>> > 1403            options.opt_has_sets = 1;
>> > (gdb) n
>> > 1408        pfmon_arch_initialize();
>> > (gdb) n
>> > 1410        setup_common_signals();
>> > (gdb) n
>> > 1413        if (pfm_initialize() != PFMLIB_SUCCESS)
>> > (gdb) n
>> > 1416        pfm_get_version(&version);
>> > (gdb) n
>> > 1417        if (PFM_VERSION_MAJOR(version) < 3 ||
>> > PFM_VERSION_MINOR(version)
>> > < 2)
>> > (gdb) n
>> > 1421        options.arg_mem_max = pfmon_get_perfmon_arg_mem_max();
>> > (gdb) n
>> > 1423        ret = pfm_get_pmu_type(&options.pmu_type);
>> > (gdb) n
>> > 1424        if (ret != PFMLIB_SUCCESS) {
>> > (gdb) n
>> > 1428        ret = pfm_get_num_counters(&options.max_counters);
>> > (gdb) n
>> > 1429        if (ret != PFMLIB_SUCCESS) {
>> > (gdb) n
>> > 1433        if (check_forced_generic(argv[0])) {
>> > (gdb) n
>> > 1442        pfmon_detect();
>> > (gdb) n
>> > 1444        options.session_timeout = PFMON_NO_TIMEOUT;
>> > (gdb) n
>> > 1445        options.interval = PFMON_NO_TIMEOUT;
>> > (gdb) n
>> > 1450        long_val = sysconf(_SC_NPROCESSORS_ONLN);
>> > (gdb) n
>> > 1451        if (long_val == -1)
>> > (gdb) n
>> > 1454        options.online_cpus = long_val;
>> > (gdb) n
>> > 1456        long_val = sysconf(_SC_NPROCESSORS_CONF);
>> > (gdb) n
>> > 1457        if (long_val == -1)
>> > (gdb) n
>> > 1460        options.config_cpus = long_val;
>> > (gdb) n
>> > 1462        pfmon_get_phys_cpu_mask();
>> > (gdb) n
>> > 1464        clock_getres(CLOCK_MONOTONIC, &ts);
>> > (gdb) n
>> > 1465        options.clock_res  = ts.tv_sec * 1000000000 + ts.tv_nsec;
>> > (gdb) n
>> > 1466        options.page_size  = getpagesize();
>> > (gdb) n
>> > 1467        options.cpu_mhz    = pfmon_find_cpu_speed();
>> > (gdb) n
>> > 1469        pfm_get_max_event_name_len(&len);
>> > (gdb) s
>> > pfm_get_max_event_name_len (len=0xbf841cc0) at pfmlib_common.c:907
>> > 907        if (PFMLIB_INITIALIZED() == 0)
>> > (gdb) n
>> > 909        if (len == NULL)
>> > (gdb) n
>> > 912        for(i=0; i < pfm_current->pme_count; i++) {
>> > (gdb) n
>> > 913            str = pfm_current->get_event_name(i);
>> > (gdb) p i
>> > $1 = 0
>> > (gdb) n
>> > 914            if (!str)
>> > (gdb) n
>> > 916            l = strlen(str);
>> > (gdb) n
>> >
>> > Program received signal SIGSEGV, Segmentation fault.
>> > 0xb7e5c613 in strlen () from /lib/tls/i686/cmov/libc.so.6
>> > (gdb)
>> >
>> >
>> > On Thu, Sep 24, 2009 at 4:20 AM, stephane eranian
>> > <eranian@googlemail.com>
>> > wrote:
>> >>
>> >> On Thu, Sep 24, 2009 at 9:29 AM, Qingyuan Deng <ddqqyy@gmail.com>
>> >> wrote:
>> >> > I tracked into the program and found the segmentation fault happened
>> >> > at:
>> >> >
>> >> > in pfmon.c
>> >> > pfmon_initialize()->pfm_get_max_event_name_len(&len)
>> >> >
>> >> > then it jumped into pfmlib_common.c
>> >> >
>> >> > pfm_get_max_event_name_len (len=0xbffd9460) at pfmlib_common.c:907
>> >> > 907        if (PFMLIB_INITIALIZED() == 0)
>> >> > (gdb) n
>> >> > 909        if (len == NULL)
>> >> > (gdb) n
>> >> > 912        for(i=0; i < pfm_current->pme_count; i++) {
>> >> > (gdb) n
>> >> > 913            str = pfm_current->get_event_name(i);
>> >> > (gdb) n
>> >> > 914            if (!str)
>> >> > (gdb) n
>> >> > 916            l = strlen(str);
>> >> > (gdb) n
>> >> >
>> >> > Program received signal SIGSEGV, Segmentation fault.
>> >> > 0xb7ef5613 in strlen () from /lib/tls/i686/cmov/libc.so.6
>> >> >
>> >> > Here is the backtrace:
>> >> >
>> >> > Program received signal SIGSEGV, Segmentation fault.
>> >> > [Switching to Thread 0xb7e7a8d0 (LWP 5257)]
>> >> > 0xb7ef2613 in strlen () from /lib/tls/i686/cmov/libc.so.6
>> >> > (gdb) backtrace
>> >> > #0  0xb7ef2613 in strlen () from /lib/tls/i686/cmov/libc.so.6
>> >> > #1  0xb7fed411 in pfm_get_max_event_name_len (len=0xbf8d5d60)
>> >> >     at pfmlib_common.c:916
>> >> > #2  0x0804dd45 in pfmon_initialize (argv=0xbf8d5e64) at pfmon.c:1469
>> >> > #3  0x0804eadf in main (argc=1, argv=0xbf8d5e64) at pfmon.c:1900
>> >> > (gdb)
>> >>
>> >>
>> >> I have seen this problem on an other machine as well. But I don't
>> >> remember
>> >> what
>> >> the cause was. It has to do with the event table.
>> >> Could you print the value of i (the event index) so we know where it
>> >> stops?
>> >>
>> >> >
>> >> > On Thu, Sep 24, 2009 at 3:25 AM, stephane eranian
>> >> > <eranian@googlemail.com>
>> >> > wrote:
>> >> >>
>> >> >> What does ldd pfmon say?
>> >> >>
>> >> >>
>> >> >> On Thu, Sep 24, 2009 at 9:01 AM, Qingyuan Deng <ddqqyy@gmail.com>
>> >> >> wrote:
>> >> >> > Hello,
>> >> >> >
>> >> >> > I patched the kernel and installed both libpfm and perfmon,
>> >> >> > however I
>> >> >> > got
>> >> >> > segmentation fault while I tried running command: "pfmon --help'.
>> >> >> > Could
>> >> >> > anyone help me to figure it out please?
>> >> >> >
>> >> >> > I am running Ubuntu 9.04 on kernel 2.6.29. I downloaded the latest
>> >> >> > version
>> >> >> > of libpfm, perfmon, and the base system patch from the sourceforge
>> >> >> > page.
>> >> >> > My
>> >> >> > processor is Intel core i7 920 and I adjusted related
>> >> >> > configuration
>> >> >> > when
>> >> >> > I
>> >> >> > configured the kernel.  Following is the debug message from gdb:
>> >> >> >
>> >> >> >
>> >> >> > qdeng@qdeng-desktop:~/pmu/perfmon2/pfmon-3.9$ sudo make install
>> >> >> > [sudo] password for qdeng:
>> >> >> > make[1]: Entering directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/pfmon'
>> >> >> > make[2]: Entering directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/pfmon/smpl_mod'
>> >> >> > make[2]: Nothing to be done for `all'.
>> >> >> > make[2]: Leaving directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/pfmon/smpl_mod'
>> >> >> > cc -o pfmon pfmon.o pfmon_smpl.o pfmon_util.o pfmon_system.o
>> >> >> > pfmon_task.o
>> >> >> > pfmon_symbols.o pfmon_results.o pfmon_hash.o pfmon_smpl_dfl.o
>> >> >> > pfmon_os.o
>> >> >> > pfmon_os_v2x.o pfmon_util_x86.o pfmon_i386_p6.o pfmon_gen_ia32.o
>> >> >> > pfmon_amd64.o pfmon_core.o pfmon_intel_atom.o pfmon_intel_nhm.o
>> >> >> > pfmon_pentium4.o  -g -ggdb -Wall -Werror -D_REENTRANT
>> >> >> > -I/usr/local/include
>> >> >> > -DCONFIG_PFMON_I386 -DPFMON_DEBUG
>> >> >> > -DDATADIR=\"/usr/local/share/pfmon\"
>> >> >> > -I.
>> >> >> > -I/usr/include/libelf -D_GNU_SOURCE -DPFMON_DEBUG -g
>> >> >> > smpl_mod/libsmplfmt.a
>> >> >> > -lpthread -lm -lrt -Wl,-Bstatic -lelf -Wl,-Bdynamic
>> >> >> > -L/usr/local/lib
>> >> >> > -lpfm
>> >> >> > mkdir -p /usr/local/bin
>> >> >> > install -m 755 pfmon /usr/local/bin/pfmon
>> >> >> > ln -sf /usr/local/bin/pfmon /usr/local/bin/pfmon_gen
>> >> >> > make[1]: Leaving directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/pfmon'
>> >> >> > make[1]: Entering directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/tests'
>> >> >> > mkdir -p /usr/local/bin
>> >> >> > install -m 755 pfdbg /usr/local/bin/pfdbg
>> >> >> > make[1]: Leaving directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/tests'
>> >> >> > make[1]: Entering directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/docs'
>> >> >> > mkdir -p /usr/local/share/man/man1
>> >> >> > install -m 644 pfmon.1 /usr/local/share/man/man1
>> >> >> > make[1]: Leaving directory
>> >> >> > `/home/qdeng/pmu/perfmon2/pfmon-3.9/docs'
>> >> >> > qdeng@qdeng-desktop:~/pmu/perfmon2/pfmon-3.9$ pfmon --help
>> >> >> > Segmentation fault
>> >> >> > qdeng@qdeng-desktop:~/pmu/perfmon2/pfmon-3.9$ gdb pfmon
>> >> >> > GNU gdb 6.8-debian
>> >> >> > Copyright (C) 2008 Free Software Foundation, Inc.
>> >> >> > License GPLv3+: GNU GPL version 3 or later
>> >> >> > <http://gnu.org/licenses/gpl.html>
>> >> >> > This is free software: you are free to change and redistribute it.
>> >> >> > There is NO WARRANTY, to the extent permitted by law.  Type "show
>> >> >> > copying"
>> >> >> > and "show warranty" for details.
>> >> >> > This GDB was configured as "i486-linux-gnu"...
>> >> >> > (gdb) run --help
>> >> >> > Starting program: /usr/local/bin/pfmon --help
>> >> >> > [Thread debugging using libthread_db enabled]
>> >> >> > [New Thread 0xb7e598d0 (LWP 4437)]
>> >> >> >
>> >> >> > Program received signal SIGSEGV, Segmentation fault.
>> >> >> > [Switching to Thread 0xb7e598d0 (LWP 4437)]
>> >> >> > 0xb7ed1613 in strlen () from /lib/tls/i686/cmov/libc.so.6
>> >> >> > (gdb)
>> >> >> >
>> >> >> > Thanks!
>> >> >> > Qingyuan
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > ------------------------------------------------------------------------------
>> >> >> > Come build with us! The BlackBerry&reg; Developer Conference in
>> >> >> > SF,
>> >> >> > CA
>> >> >> > is the only developer event you need to attend this year.
>> >> >> > Jumpstart
>> >> >> > your
>> >> >> > developing skills, take BlackBerry mobile applications to market
>> >> >> > and
>> >> >> > stay
>> >> >> > ahead of the curve. Join us from November 9&#45;12, 2009. Register
>> >> >> > now&#33;
>> >> >> > http://p.sf.net/sfu/devconf
>> >> >> > _______________________________________________
>> >> >> > perfmon2-devel mailing list
>> >> >> > perfmon2-devel@lists.sourceforge.net
>> >> >> > https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
>> >> >> >
>> >> >> >
>> >> >
>> >> >
>> >
>> >
>
>