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9a969403c3
- tracepoint_error() can receive e=NULL, robustify it, fixes a problem noticed with a very specific combination: Machine with Intel PT (e.g. Broadwell), kernel with no perf_event_attr.context_switch feature (e.g. 4.2) and unreadable tracefs (for instance !root users), making the fallback from perf_event_attr.context_switch to the sched:sched_switch tracepoint to fail reading its info from tracefs, fix it. (Adrian Hunter) - Fix segfault in intel pt, by making it follow the 'struct thread' lifetime cycle checking expectations, noticed for instance, when processing perf.data files with Intel PT data using 'perf script' and when exiting 'perf report' (Adrian Hunter) - Fix CFI usage from .eh_frame and .debug_frame, which sometimes requires that we fallback from .eh_frame to .debug_frame in architectures such as PowerPC (Hemant Kumar) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWsjJzAAoJENZQFvNTUqpAF2EP/2UJGz/mi7O3wu90YO7BnglD WizS/Y4fTLDfoz9+hwiUscHMvBOpAYMRbGX73AyHCP5qPsv1fRyW5jPCyCqpvDWB TU86CX0t9CEXAj3mKTwShqIXiY9Hmf0lOwxAxY+Y5I12utirqHzZreilBhNvHStz ESYXpTKsDNdU08Zu7nLmKqIlFLnRvY+7sL55+rgcw7DWaIcivpAF8b8RX7iJyoJk fL7dkebXDtZvQpBZ4A8TniACjqebfpg1BSiZ7c9NDIs7YMB+2VPDzXrySP2Oq3q6 u8rZtwn8/0idZ5Es2LWU68QXJL0Z6q7p74BZ+/IO1jSTviegu8CQTfIHRfyx+ur4 IZroUuEPDz9tFw7q8tUt/D48Qbh7rOIFBYUHtbq9e0g1WfW2g0NzP/EseNQxkica uZdfn98cHZyeGiNLhRAjqTwGmZTlV7EoNh6282i7PwyJ9J5nOs36f3Tuo1bekVp+ qtugNbE2xebwwCiBSAHbsQcIrKnyL+bcgSrDzKAP5kBz9r58TQad+CUNQ/IHyhdr q66RYEy3cdmotcPKtK5jxNMYoSoJzlGEpX3FKXZNHkpRIkNp1vZA6MlSIiHOo/A8 eUg6O55XBRJLYdZ/Q2Vb1t1X83g2789o4tgW0tOUtwBwCW7AIQq7w2m08aUCbQf5 2/HaTdhyxMx6ra34dzS1 =0cG5 -----END PGP SIGNATURE----- Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - tracepoint_error() can receive e=NULL, robustify it, fixes a problem noticed with a very specific combination: Machine with Intel PT (e.g. Broadwell), kernel with no perf_event_attr.context_switch feature (e.g. 4.2) and unreadable tracefs (for instance !root users), making the fallback from perf_event_attr.context_switch to the sched:sched_switch tracepoint to fail reading its info from tracefs, fix it. (Adrian Hunter) - Fix segfault in intel PT, by making it follow the 'struct thread' lifetime cycle checking expectations, noticed for instance, when processing perf.data files with Intel PT data using 'perf script' and when exiting 'perf report' (Adrian Hunter) - Fix CFI usage from .eh_frame and .debug_frame, which sometimes requires that we fallback from .eh_frame to .debug_frame in architectures such as PowerPC (Hemant Kumar) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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