Kan Liang b257bb437d perf/x86/intel/uncore: Reduce the number of CBOX counters ... [ Upstream commit ee13938543 ] An oops is triggered by the fuzzy test. [ 327.853081] unchecked MSR access error: RDMSR from 0x70c at rIP: 0xffffffffc082c820 (uncore_msr_read_counter+0x10/0x50 [intel_uncore]) [ 327.853083] Call Trace: [ 327.853085] <IRQ> [ 327.853089] uncore_pmu_event_start+0x85/0x170 [intel_uncore] [ 327.853093] uncore_pmu_event_add+0x1a4/0x410 [intel_uncore] [ 327.853097] ? event_sched_in.isra.118+0xca/0x240 There are 2 GP counters for each CBOX, but the current code claims 4 counters. Accessing the invalid registers triggers the oops. Fixes: 6e394376ee ("perf/x86/intel/uncore: Add Intel Icelake uncore support") Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200925134905.8839-3-kan.liang@linux.intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:57:30 +01:00
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Makefile	perf/x86/rapl: Move RAPL support to common x86 code	2020-07-16 08:16:32 +02:00
bts.c	perf/x86/intel/bts: Fix the use of page_private()	2020-01-09 10:20:07 +01:00
core.c	perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont	2020-06-17 16:40:25 +02:00
cstate.c	perf/x86/cstate: Add Tremont support	2020-03-05 16:43:37 +01:00
ds.c	perf/x86/intel/ds: Fix x86_pmu_stop warning for large PEBS	2020-10-29 09:57:29 +01:00
knc.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
lbr.c	perf/x86: Make more stuff static	2019-09-03 09:22:32 +02:00
p4.c	x86: Fix various typos in comments	2018-12-03 10:49:13 +01:00
p6.c	x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping	2018-02-15 01:15:52 +01:00
pt.c	perf/x86/intel/pt: Fix base for single entry topa	2019-10-20 14:42:28 +02:00
pt.h	perf/x86/intel/pt: Get rid of reverse lookup table for ToPA	2019-08-26 12:00:16 +02:00
uncore.c	perf/x86/uncore: Fix event group support	2019-10-28 11:02:01 +01:00
uncore.h	perf/x86/uncore: Fix event group support	2019-10-28 11:02:01 +01:00
uncore_nhmex.c	perf/x86/intel/uncore: Correct fixed counter index check for NHM	2018-05-31 12:36:28 +02:00
uncore_snb.c	perf/x86/intel/uncore: Reduce the number of CBOX counters	2020-10-29 09:57:30 +01:00
uncore_snbep.c	perf/x86/intel/uncore: Remove PCIe3 unit for SNR	2020-02-05 21:22:47 +00:00