Will Deacon <will.deacon@xxxxxxx> writes: > Mans, > > On Fri, Jan 27, 2012 at 12:56:35PM +0000, Måns Rullgård wrote: >> Will Deacon <will.deacon@xxxxxxx> writes: >> > Did this lead anywhere in the end? It seems as though Ming Lei has a working >> > setup but Stephane is unable to replicate it, despite applying the necessary >> > patches and trying an updated bootloader. >> >> With the patches listed above plus the one in [1], I get PMU interrupts. >> However, unless I restrict the profiled process to one CPU >> (taskset 1 perf record ...), I get a panic in armpmu_event_update() with >> the 'event' argument being null when called from armv7pmu_handle_irq(). >> >> [1] http://article.gmane.org/gmane.linux.ports.arm.omap/69696 > > Great, thanks for trying this out. Which version of the kernel were you > using? I fixed a bunch of NULL pointer derefs. during the 3.2 window, but if > you were using an -rc kernel you have have hit one of them. This was with the Linaro tilt-3.2 kernel from git://git.linaro.org/landing-teams/working/ti/kernel.git, commit 73e2c294444f209d281f7cd10b52b53b087e74f1. Maybe one of the many patches it has on top of 3.2 is to blame. -- Måns Rullgård mans@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
