Bartosz Taudul 6b58f7d8d0 Report system tracing setup failures. ...

SysTraceStart previously reported success even when no perf events
could be opened, leaving a worker thread running over no buffers
and an empty CPU section without explanation; it now fails in that
case. Also log when /proc/kallsyms cannot be read, which otherwise
silently results in ??? kernel stack frames.

2026-08-19 22:18:59 +02:00

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