Revision 451d24d1e5f40bad000fa9abe36ddb16fc9928cb authored by Peter Zijlstra on 31 January 2017, 10:27:10 UTC, committed by Ingo Molnar on 10 February 2017, 08:04:50 UTC
Alexei had his box explode because doing read() on a package (rapl/uncore) event that isn't currently scheduled in ends up doing an out-of-bounds load. Rework the code to more explicitly deal with event->oncpu being -1. Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Tested-by: Alexei Starovoitov <ast@kernel.org> Tested-by: David Carrillo-Cisneros <davidcc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: eranian@google.com Fixes: d6a2f9035bfc ("perf/core: Introduce PMU_EV_CAP_READ_ACTIVE_PKG") Link: http://lkml.kernel.org/r/20170131102710.GL6515@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
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File | Mode | Size |
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Documentation | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 31 bytes |
.gitattributes | -rw-r--r-- | 30 bytes |
.gitignore | -rw-r--r-- | 1.3 KB |
.mailmap | -rw-r--r-- | 7.7 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 96.0 KB |
Kbuild | -rw-r--r-- | 2.8 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 383.0 KB |
Makefile | -rw-r--r-- | 57.6 KB |
README | -rw-r--r-- | 722 bytes |
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