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Linaro / OpenCSD

CoreSight trace stream decoder developed openly
https://github.com/Linaro/opencsd/wiki
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perf trace data decoding failed #44

Closed winterddd closed 2 years ago

winterddd commented 2 years ago

Hi,

I compile perf with OpenCSD and run coresight tracing, but it seemed some error happened. Can you point out where I did wrong?

perf cmd get perf data

./tools/perf/perf record -e cs_etm/@tmc_etr0/u --per-thread uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.046 MB perf.data ]

but perf report error

tools/perf/perf report --stdio 
0x220 [0x2c28]: failed to process type: 70 [Cannot allocate memory]
Error:
failed to process sample
# To display the perf.data header info, please use --header/--header-only options.
#

perf verbose output

./tools/perf/perf record -vvv -e cs_etm/@tmc_etr0/u --per-thread uname
Using CPUID 0x00000000410fd490
After aliases, add event pmu 'cs_etm' with 'tmc_etr0,' that may result in non-fatal errors
DEBUGINFOD_URLS=
nr_cblocks: 0
affinity: SYS
mmap flush: 1
comp level: 0
------------------------------------------------------------
perf_event_attr:
  type                             7
  size                             128
  { sample_period, sample_freq }   1
  sample_type                      IP|TID|IDENTIFIER
  read_format                      ID
  disabled                         1
  exclude_kernel                   1
  exclude_hv                       1
  enable_on_exec                   1
  sample_id_all                    1
  exclude_guest                    1
  { bp_len, config2 }              0xa6509eae
------------------------------------------------------------
sys_perf_event_open: pid 10456  cpu -1  group_fd -1  flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
  type                             1
  size                             128
  config                           0x9
  { sample_period, sample_freq }   1
  sample_type                      IP|TID|IDENTIFIER
  read_format                      ID
  disabled                         1
  exclude_kernel                   1
  exclude_hv                       1
  mmap                             1
  comm                             1
  enable_on_exec                   1
  task                             1
  sample_id_all                    1
  exclude_guest                    1
  mmap2                            1
  comm_exec                        1
  context_switch                   1
  ksymbol                          1
  bpf_event                        1
------------------------------------------------------------
sys_perf_event_open: pid 10456  cpu -1  group_fd -1  flags 0x8 = 6
mmap size 528384B
AUX area mmap length 4194304
Control descriptor is not initialized
thread_data[0x1528640]: nr_mmaps=1, maps=0x151ded0, ow_maps=(nil)
thread_data[0x1528640]: cpu-1: maps[0] -> mmap[0]
thread_data[0x1528640]: pollfd[0] <- event_fd=5
thread_data[0x1528640]: pollfd[1] <- event_fd=6
------------------------------------------------------------
perf_event_attr:
  type                             1
  size                             128
  config                           0x9
  watermark                        1
  sample_id_all                    1
  bpf_event                        1
  { wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1  cpu -1  group_fd -1  flags 0x8
sys_perf_event_open failed, error -22
switching off bpf_event
------------------------------------------------------------
perf_event_attr:
  type                             1
  size                             128
  config                           0x9
  watermark                        1
  sample_id_all                    1
  { wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1  cpu -1  group_fd -1  flags 0x8
sys_perf_event_open failed, error -22
switching off cloexec flag
------------------------------------------------------------
perf_event_attr:
  type                             1
  size                             128
  config                           0x9
  watermark                        1
  sample_id_all                    1
  { wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1  cpu -1  group_fd -1  flags 0
sys_perf_event_open failed, error -22
switching off sample_id_all
------------------------------------------------------------
perf_event_attr:
  type                             1
  size                             128
  config                           0x9
  watermark                        1
  { wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1  cpu -1  group_fd -1  flags 0
sys_perf_event_open failed, error -22
Couldn't start the BPF side band thread:
BPF programs starting from now on won't be annotatable
Synthesizing TSC conversion information
Synthesizing id index
Synthesizing auxtrace information
Linux
auxtrace idx 0 old 0 head 0x88d0 diff 0x88d0
[ perf record: Woken up 1 times to write data ]
overlapping maps in [vdso] (disable tui for more info)
symbol:init_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:init_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:map_failed file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:map_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:map_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:reloc_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:reloc_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:unmap_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:unmap_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:setjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp_target file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:setjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp_target file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:lll_lock_wait_private file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:cond_destroy file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:cond_init file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_arena_max file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_arena_test file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_tunable_tcache_max_bytes file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_tunable_tcache_count file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_tunable_tcache_unsorted_limit file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_trim_threshold file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_top_pad file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_mmap_threshold file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_mmap_max file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_perturb file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_mxfast file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_heap_new file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_arena_reuse_free_list file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_sbrk_less file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_heap_free file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_heap_less file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_tcache_double_free file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_heap_more file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_sbrk_more file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_arena_reuse file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_arena_reuse_wait file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_arena_new file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_arena_retry file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_malloc_retry file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_memalign_retry file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt_free_dyn_thresholds file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_realloc_retry file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_calloc_retry file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:memory_mallopt file:(null) line:0 offset:0 return:0 lazy:(null)
failed to write feature CPUDESC
failed to write feature MEM_TOPOLOGY
failed to write feature CPU_PMU_CAPS
failed to write feature HYBRID_TOPOLOGY
failed to write feature HYBRID_CPU_PMU_CAPS
[ perf record: Captured and wrote 0.045 MB perf.data ]

Thanks for your help.

mikel-armbb commented 2 years ago

This common for incorrectly configured perf or CoreSight system. Not an OpenCSD issue. Suggest posting to CoreSight mailing list

Closing as no issue with OpenCSD has been descirbed