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Adrian Hunter 5501e9229a perf intel-pt: Fix 'CPU too large' error 
In some cases, the number of cpus (nr_cpus_online) is confused with the
maximum cpu number (nr_cpus_avail), which results in the error in the
example below:

Example on system with 8 cpus:

 Before:
   # echo 0 > /sys/devices/system/cpu/cpu2/online
   # ./perf record --kcore -e intel_pt// taskset --cpu-list 7 uname
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.147 MB perf.data ]
   # ./perf script --itrace=e
   Requested CPU 7 too large. Consider raising MAX_NR_CPUS
   0x25908 [0x8]: failed to process type: 68 [Invalid argument]

 After:
   # ./perf script --itrace=e
   #

Fixes: 8c7274691f ("perf machine: Replace MAX_NR_CPUS with perf_env::nr_cpus_online")
Fixes: 7df4e36a47 ("perf session: Replace MAX_NR_CPUS with perf_env::nr_cpus_online")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20210107174159.24897-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2021-01-15 17:28:27 -03:00
..
Documentation perf sort: Add sort option for data page size 2020-12-19 17:52:24 -03:00
arch perf tools: Update s390's syscall.tbl copy from the kernel sources 2020-12-24 09:24:20 -03:00
bench tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' 2020-11-12 17:55:41 -03:00
examples/bpf perf bpf examples: Fix bpf.h header include directive in 5sec.c example 2021-01-15 16:31:46 -03:00
include/bpf perf bpf: Remove bpf/ subdir from bpf.h headers used to build bpf events 2020-02-18 10:13:28 -03:00
jvmti perf jvmti: Remove redundant jitdump line table entries 2020-05-29 16:51:38 -03:00
pmu-events perf vendor events: Add JSON metrics for imx8mm DDR Perf 2020-12-17 14:36:17 -03:00
python tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
scripts perf script: Add min, max to futex-contention output, in addition to avg 2020-09-23 12:58:53 -03:00
tests perf test: Fix shadow stat test for non-bash shells 2021-01-15 16:31:46 -03:00
trace tools arch x86: Sync the msr-index.h copy with the kernel sources 2020-12-24 09:24:19 -03:00
ui perf evlist: Use the right prefix for 'struct evlist' event selection methods 2020-11-30 15:01:08 -03:00
util perf intel-pt: Fix 'CPU too large' error 2021-01-15 17:28:27 -03:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Build perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
CREDITS
…
MANIFEST libperf: Move to tools/lib/perf 2020-01-06 11:46:09 -03:00
Makefile tools: Let O= makes handle a relative path with -C option 2020-03-06 17:08:28 -03:00
Makefile.config perf tools: Remove LTO compiler options when building perl support 2020-11-03 08:24:54 -03:00
Makefile.perf tools: Factor HOSTCC, HOSTLD, HOSTAR definitions 2020-11-11 12:18:22 -08:00
builtin-annotate.c perf evlist: Use the right prefix for 'struct evlist' event group methods 2020-11-30 15:00:12 -03:00
builtin-bench.c perf bench: Add build-id injection benchmark 2020-10-13 10:59:42 -03:00
builtin-buildid-cache.c perf tools: Pass build_id object to build_id__sprintf() 2020-10-14 08:46:22 -03:00
builtin-buildid-list.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-c2c.c perf c2c: Support AUX trace 2020-11-11 12:27:06 -03:00
builtin-config.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
builtin-data.c perf data: Add support to store time of day in CTF data conversion 2020-08-06 09:43:37 -03:00
builtin-diff.c perf evlist: Use the right prefix for 'struct evlist' diff methods 2020-11-30 15:18:48 -03:00
builtin-evlist.c perf evlist: Support pipe mode display 2020-12-17 14:36:17 -03:00
builtin-ftrace.c perf evlist: Use the right prefix for 'struct evlist' create maps methods 2020-11-30 14:56:52 -03:00
builtin-help.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
builtin-inject.c Merge remote-tracking branch 'torvalds/master' into perf/core 2020-11-30 08:56:55 -03:00
builtin-kallsyms.c perf dsos: Move the dsos struct and its methods to separate source files 2019-08-31 22:24:10 -03:00
builtin-kmem.c perf evlist: Use the right prefix for 'struct evlist' 'find' methods 2020-11-30 09:48:07 -03:00
builtin-kvm.c perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method 2020-11-30 15:15:30 -03:00
builtin-list.c perf list: Remove dead code in argument check 2020-09-09 11:12:10 -03:00
builtin-lock.c perf lock: Don't free "lock_seq_stat" if read_count isn't zero 2020-11-12 17:55:41 -03:00
builtin-mem.c perf mem: Factor out a function to generate sort order 2020-12-19 17:53:29 -03:00
builtin-probe.c perf probe: Do not show the skipped events 2020-05-28 10:03:24 -03:00
builtin-record.c perf record: Support new sample type for data page size 2020-12-17 14:36:16 -03:00
builtin-report.c perf report: Support --header-only for pipe mode 2020-12-17 14:36:17 -03:00
builtin-sched.c perf evlist: Use the right prefix for 'struct evlist' 'find' methods 2020-11-30 09:48:07 -03:00
builtin-script.c perf script: Support data page size 2020-12-19 17:04:39 -03:00
builtin-stat.c perf stat aggregation: Add separate core member 2020-12-24 10:05:25 -03:00
builtin-timechart.c perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
builtin-top.c perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method 2020-11-30 15:15:30 -03:00
builtin-trace.c perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method 2020-11-30 15:15:30 -03:00
builtin-version.c perf version: Add a feature for libpfm4 2020-11-04 09:42:40 -03:00
builtin.h perf tools: Remove needless util.h include from builtin.h 2019-08-28 17:19:34 -03:00
check-headers.sh perf s390: Move syscall.tbl check into check-headers.sh 2020-12-24 09:24:20 -03:00
command-list.txt
…
design.txt perf tools: Support CAP_PERFMON capability 2020-04-16 12:19:08 -03:00
perf-archive.sh
…
perf-completion.sh
…
perf-read-vdso.c perf tools: Make find_vdso_map() more modular 2019-01-08 13:28:13 -03:00
perf-sys.h perf tests: Call test_attr__open() directly 2020-09-10 11:55:37 -03:00
perf-with-kcore.sh Merge branch 'x86/cpu' into perf/core, to pick up dependent changes 2019-06-17 12:29:16 +02:00
perf.c libperf: Merge libperf_set_print() into libperf_init() 2019-09-25 09:51:49 -03:00
perf.h perf time-utils: Adopt rdclock() from perf.h 2019-08-29 17:38:32 -03:00