perf trace data decoding failed
Closed this issue · 1 comments
winterddd commented
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
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