Robert Richter wrote: > On 18.03.09 13:09:41, Murali Vijayasundaram wrote: > >> Hi Stephane, >> >> The kernel version is 2.6.28.4. I applied the latest perfmon patch >> (perfmon-new-base-090219.tar.gz). I am also using the latest libpfm and >> pfmon. >> >> When I tried the example program >> libpfm-3.8/examples_v2.x/x86/smpl_amd64_ibs, I get errors. >> >> $ smpl_amd64_ibs --ibsop ./a.out >> sycall base 295 >> major version 2 >> minor version 82 >> AMD family=16 model=0x2 stepping=0x3 rev=B, AMD64 (Family 10h RevB, >> Barcelona) >> buffer mapped @0x2af3b1b3f000 >> hdr_cur_offs=128 version=1.0 >> pfm_write_pmcs error errno 22 >> >> I enabled perfmon debugging and I got the following from dmesg: >> >> perfmon: version 2.82 >> perfmon: CPU hotplug support enabled >> perfmon: added sampling format default >> perfmon: found family=16 IBSCTL=0x0 >> perfmon: NorthBridge socket-level event access control: enabled >> perfmon: Failed to initialize extended interrupts for IBS >> > > This is the problem. There were some code rework here shortly. Please > reboot with kernel parameter perfmon_debug and grep for perfmon in the > syslog. > >
I rebooted with perfmon_debug parameter and ran an IBS example program in the libpfm-3.8 package. $ cd libpfm-3.8/examples_v2.x/x86 $ smpl_amd64_ibs --ibsop ls sycall base 295 major version 2 minor version 82 AMD family=16 model=0x2 stepping=0x3 rev=B, AMD64 (Family 10h RevB, Barcelona) buffer mapped @0x2b40e8b57000 hdr_cur_offs=128 version=1.0 pfm_write_pmcs error errno 22 Here is the output from the syslog: $ dmesg | grep perfmon Command line: ro root=/dev/VolGroup00/LogVol00 perfmon_debug Kernel command line: ro root=/dev/VolGroup00/LogVol00 perfmon_debug perfmon: debug output enabled perfmon: version 2.82 perfmon: CPU hotplug support enabled perfmon: added sampling format default perfmon: sys_pfm_create_context.499: CPU0 [4205]: req=00007fffc1f53820 fmt=00000 0000040d107 fmt_arg=00007fffc1f537e0 size=64 perfmon: found family=16 IBSCTL=0x0 perfmon: pfm_amd64_nb_allocate.421: CPU7 [4207]: max_cpus=8 perfmon: NorthBridge socket-level event access control: enabled perfmon: pfm_amd64_setup_eilvt.224: CPU7 [4207]: Failed to setup IBS LVT offset, IBSCTL = 0xffffffff perfmon: Failed to initialize extended interrupts for IBS perfmon: Unable to use IBS perfmon: pfm_amd64_check_registers.488: CPU7 [4207]: has_ibs=0 perfmon: AMD64 PMU installed perfmon: pfm_pmu_request_module.436: CPU0 [4205]: mod=perfmon_amd64 ret=0 perfmon: __pfm_create_context.180: CPU0 [4205]: alloc ctx @0xffff88041a4b8000 perfmon: pfm_pmu_acquire.547: CPU0 [4205]: pmu_acquired=0 perfmon: pfm_arch_reserve_regs.595: CPU0 [4205]: nlost=0 info_flags=0x0 perfmon: pfm_pmu_regdesc_init.176: CPU0 [4205]: intr_pmds=0xf cnt_pmds=0xf rw_pm ds=0xf perfmon: pfm_pmu_regdesc_init_all.210: CPU0 [4205]: regs_all.pmcs=0xf regards, -murali > Thanks, > > -Robert > > >> perfmon: Unable to use IBS >> perfmon: AMD64 PMU installed >> >> Do you have any ideas? >> >> regards, >> -murali >> >> ------------------------------------------------------------------------------ >> Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are >> powering Web 2.0 with engaging, cross-platform capabilities. Quickly and >> easily build your RIAs with Flex Builder, the Eclipse(TM)based development >> software that enables intelligent coding and step-through debugging. >> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com >> _______________________________________________ >> perfmon2-devel mailing list >> perfmon2-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/perfmon2-devel >> >> > > ------------------------------------------------------------------------------ _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
