On Mon, May 10, 2010 at 5:52 PM, Peter Zijlstra <pet...@infradead.org> wrote: > On Mon, 2010-05-10 at 17:33 +0200, Stephane Eranian wrote: >> Hi, >> >> While testing 2.6.34-rc7 I ran into the following issue when >> using BTS sampling on Intel Core. It seems like something >> is not terminated properly. I am sampling BTS per-thread >> on a test program, then hit CTRL-C, one second later my >> machine crashes while running bash. Crash dump below: >> >> [ 750.249109] general protection fault: 0000 [#1] SMP >> [ 750.249270] CPU 3 >> [ 750.249270] Pid: 6132, comm: bash Not tainted 2.6.34-rc7-tip+ #46 > > Can you try and reverting 4fd38e4595e2f6c9d27732c042a0e16b2753049c, I > spend most of the day chasing that, and I can't say I'm much wiser. >
It seems to avoid my problem. So that means with STATE_FREE, some code path is exercised differently and there is leftover state that generates spurious interrupts, as if some event_sched_out() code was not executed. ------------------------------------------------------------------------------ _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
