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Adrian Hunter d443cefd9f perf intel-pt: Fix 'CPU too large' error 
commit 5501e9229a upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-01-19 18:26:16 +01:00
..
Documentation perf record/stat: Explicitly call out event modifiers in the documentation 2020-09-05 11:22:49 +02:00
arch perf tools: Fix record failure when mixed with ARM SPE event 2020-08-05 09:59:49 +02:00
bench perf bench mem: Always memset source before memcpy 2020-08-21 13:05:38 +02:00
examples/bpf perf augmented_raw_syscalls: Reduce perf_event_output() boilerplate 2019-08-26 11:58:29 -03:00
include/bpf perf include bpf: Add bpf_tail_call() prototype 2019-07-29 18:34:40 -03:00
jvmti perf jvmti: Link against tools/lib/ctype.h to have weak strlcpy() 2019-10-15 11:47:38 -03:00
lib libperf: Add perf_evlist__poll() function 2019-09-25 09:51:49 -03:00
pmu-events perf jevents: Fix leak of mapfile memory 2020-10-01 13:17:39 +02:00
python treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 407 2019-06-05 17:37:14 +02:00
scripts perf scripts python: exported-sql-viewer.py: Fix unexpanded 'Find' result 2020-07-16 08:16:47 +02:00
tests perf test session topology: Fix data path 2020-10-14 10:32:59 +02:00
trace perf trace: Fix the selection for architectures to generate the errno name tables 2020-10-01 13:18:05 +02:00
ui perf report TUI: Fix segmentation fault in perf_evsel__hists_browse() 2020-07-16 08:16:38 +02:00
util perf intel-pt: Fix 'CPU too large' error 2021-01-19 18:26:16 +01:00
.gitignore perf: Update .gitignore file 2019-08-31 22:27:52 -03:00
Build perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
CREDITS
…
MANIFEST tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
Makefile tools: Let O= makes handle a relative path with -C option 2020-04-01 11:02:00 +02:00
Makefile.config perf tools: Support Python 3.8+ in Makefile 2020-04-17 10:50:21 +02:00
Makefile.perf libtraceevent: Move traceevent plugins in its own subdirectory 2019-09-25 09:51:43 -03:00
builtin-annotate.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-bench.c perf tools: Remove perf.h from source files not needing it 2019-08-29 17:38:32 -03:00
builtin-buildid-cache.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -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: Fix return type for histogram sorting comparision functions 2020-02-05 21:22:40 +00:00
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 debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
builtin-diff.c perf diff: Use llabs() with 64-bit values 2020-01-04 19:18:26 +01:00
builtin-evlist.c perf evsel: Introduce evsel_fprintf.h 2019-09-25 16:26:34 -03:00
builtin-ftrace.c perf auxtrace: Uninline functions that touch perf_session 2019-08-31 22:24:10 -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 perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -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 kmem: Fix memory leak in compact_gfp_flags() 2019-10-16 10:08:32 -03:00
builtin-kvm.c perf tools: Propagate get_cpuid() error 2019-09-30 17:29:54 -03:00
builtin-list.c perf list: Allow plurals for metric, metricgroup 2019-09-25 09:51:42 -03:00
builtin-lock.c perf lock: Don't free "lock_seq_stat" if read_count isn't zero 2020-11-24 13:29:05 +01:00
builtin-mem.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-probe.c perf probe: Do not show the skipped events 2020-06-22 09:31:27 +02:00
builtin-record.c perf record: Correct the help info of option "--no-bpf-event" 2020-09-09 19:12:36 +02:00
builtin-report.c perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events() 2020-06-24 17:50:45 +02:00
builtin-sched.c perf evsel: Introduce evsel_fprintf.h 2019-09-25 16:26:34 -03:00
builtin-script.c perf script: Fix --reltime with --time 2020-01-23 08:23:01 +01:00
builtin-stat.c perf stat: Skip duration_time in setup_system_wide 2020-10-29 09:57:50 +01:00
builtin-timechart.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-top.c perf top: Fix stdio interface input handling with glibc 2.28+ 2020-10-14 10:32:59 +02:00
builtin-trace.c perf trace: Fix segfault when trying to trace events by cgroup 2020-11-18 19:20:18 +01:00
builtin-version.c perf symbols: Move mem_info and branch_info out of symbol.h 2019-08-31 22:27:48 -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 tools headers uapi: Sync linux/fs.h with the kernel sources 2019-09-30 17:29:22 -03:00
command-list.txt perf help: Add missing subcommand `version` 2018-09-19 14:53:36 -03:00
design.txt perf/doc: Update design.txt for exclude_{host|guest} flags 2019-01-21 11:01:18 +01:00
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 tools: Make usage of test_attr__* optional for perf-sys.h 2019-10-31 21:38:41 +01:00
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