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David Ahern 20d23aaa31 perf stat: handle ENXIO error for perf_event_open ... perf stat on PPC currently fails to run: $ perf stat -- sleep 1 Error: open_counter returned with 6 (No such device or address). /bin/dmesg may provide additional information. Fatal: Not all events could be opened. The problem is that until 2.6.37 (behavior changed with commit b0a873e) perf on PPC returns ENXIO when hw_perf_event_init() fails. With this patch we get the expected behavior: $ perf stat -v -- sleep 1 cycles event is not supported by the kernel. stalled-cycles-frontend event is not supported by the kernel. stalled-cycles-backend event is not supported by the kernel. instructions event is not supported by the kernel. branches event is not supported by the kernel. branch-misses event is not supported by the kernel. ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1336490956-57145-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		13 years ago
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firewire	tools/firewire: nosy-dump: increment program version	15 years ago
hv	Tools: hv: Support enumeration from all the pools	13 years ago
include/tools	tools/include: Add byteshift headers for endian access	13 years ago
lguest	lguest: move the lguest tool to the tools directory	13 years ago
nfsd	NFSD: Added fault injection script	13 years ago
perf	perf stat: handle ENXIO error for perf_event_open	13 years ago
power	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	13 years ago
testing	ktest: Fix reboot on success stopping all reboots	13 years ago
usb	Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
virtio	tools/virtio: stub out strong barriers	13 years ago
vm	mm: move slabinfo.c to tools/vm	13 years ago