Revision 5501e9229a80d95a1ea68609f44c447a75d23ed5 authored by Adrian Hunter on 07 January 2021, 17:41:59 UTC, committed by Arnaldo Carvalho de Melo on 15 January 2021, 20:28:27 UTC
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: 8c7274691f0d ("perf machine: Replace MAX_NR_CPUS with perf_env::nr_cpus_online") Fixes: 7df4e36a4785 ("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>
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File | Mode | Size |
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Makefile | -rw-r--r-- | 294 bytes |
af_rose.c | -rw-r--r-- | 36.9 KB |
rose_dev.c | -rw-r--r-- | 2.9 KB |
rose_in.c | -rw-r--r-- | 7.3 KB |
rose_link.c | -rw-r--r-- | 6.4 KB |
rose_loopback.c | -rw-r--r-- | 2.8 KB |
rose_out.c | -rw-r--r-- | 2.6 KB |
rose_route.c | -rw-r--r-- | 30.4 KB |
rose_subr.c | -rw-r--r-- | 12.1 KB |
rose_timer.c | -rw-r--r-- | 4.5 KB |
sysctl_net_rose.c | -rw-r--r-- | 3.1 KB |
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