I can't get any PMU interrupt on pandaboard, although I am not using perf or oprofile. I am just write my own code to operate the PMU. The overflow register shows that overflow happens, but the PMU interrupt is not triggered. Is this a bug of hardware or a bug of BSP?
I am using source code in http://git.linaro.org/gitweb?p=kernel/linux-linaro-2.6.39.git;a=summary, but with the following patch: http://lists.linaro.org/pipermail/linaro-dev/2011-April/004019.html -- You received this bug notification because you are a member of Linaro Release Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/843628 Title: perf failure on panda (omap4) Status in Linaro Ubuntu Evaluation Builds: Confirmed Status in “linux-linaro-omap” package in Ubuntu: Confirmed Bug description: Though perf lists the PMU events but fails to gather performance counter statistics on panda # perf list List of pre-defined events (to be used in -e): cpu-cycles OR cycles [Hardware event] instructions [Hardware event] cache-references [Hardware event] cache-misses [Hardware event] branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cpu-clock [Software event] task-clock [Software event] page-faults OR faults [Software event] [...] # perf stat sleep 1 Error: cache-misses event is not supported. Fatal: Not all events could be opened. To manage notifications about this bug go to: https://bugs.launchpad.net/linaro-ubuntu/+bug/843628/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~linaro-release Post to : [email protected] Unsubscribe : https://launchpad.net/~linaro-release More help : https://help.launchpad.net/ListHelp
