[Crash-utility] Trace common and ARM aarch64

[Wickman, Cliff]

Hi folks at crash-utility,

I’m just hoping that this address still reaches you who support the crash utility.

I am having difficulty digging trace entries out of an ARM (aarch64) dump.
I’m not sure whether the problem is in /sys/kernel/debug/trace or in the trace-cmd command.

Just using  trace-cmd extract, then this hangs:
# ./trace-cmd report
trace-cmd: No such file or directory
  [vmscan:mm_vmscan_writepage] function __builtin_constant_p not defined
  [scsi:scsi_dispatch_cmd_timeout] function scsi_trace_parse_cdb not defined
  [scsi:scsi_dispatch_cmd_start] function scsi_trace_parse_cdb not defined
  [scsi:scsi_dispatch_cmd_error] function scsi_trace_parse_cdb not defined
  [scsi:scsi_dispatch_cmd_done] function scsi_trace_parse_cdb not defined
  [ras:mc_event] function mc_event_error_type not defined
^Ctrace-cmd: Received SIGINT
I have put debugging printf’s in trace-cmd and find it is hanging trying to parse entries in trace.dat.

This works okay on an x86_64 system at the same level.

The OS: # uname -a
Linux panda-aarch 5.3.18-24.46_6.0.29…
The trace-cmd is built from source, branch trace-cmd-stable-v2.6, which is the latest version I could successfully build.

Do you have any report of a problem with trace and trace-cmd specifically on aarch64?

Thanks.
-Cliff Wickman
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