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Report correct PID from LuaJIT unwinder #229

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Merged
umanwizard merged 1 commit into from
Mar 9, 2026
Merged

Report correct PID from LuaJIT unwinder #229

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3 changes: 2 additions & 1 deletion support/ebpf/luajit_tracer.ebpf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -509,7 +509,8 @@ find_context(struct pt_regs *ctx, PerCPURecord *record, const LuaJITProcInfo *in
// Once the HA fills in text_section_bias with G we'll stop sending these report_pids.
if (state->text_section_bias == 0) {
DEBUG_PRINT("lj: unwinding unmapped JIT frame");
report_pid(ctx, record->trace.pid, RATELIMIT_ACTION_DEFAULT);
u64 pid_tgid = (u64)record->trace.pid << 32 | record->trace.tid;
report_pid(ctx, pid_tgid, RATELIMIT_ACTION_DEFAULT);

// If top frame isn't luajit we can't rely on the register still holding the DISPATCH table,
// but once we propagate G to the HA text_section_bias will be set to the G pointer and we can
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