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Add %I (TID in initial PID namespace) to the core_pattern, so the kernel passes the crashing thread's TID to systemd-coredump. Use it to read the thread's comm name from /proc/<tid>/comm and log both as new journal fields: COREDUMP_TID= — TID of the crashing thread COREDUMP_THREAD_NAME= — comm name of the crashing thread These fields are also stored as xattrs on external coredump files (user.coredump.tid, user.coredump.thread_name) and displayed by coredumpctl info alongside the PID line. For single-threaded processes the TID equals the PID and thread_name equals comm; for multi-threaded programs with named worker threads (pthread_setname_np / PR_SET_NAME) this identifies which thread crashed without needing to open the coredump file itself. The new fields are optional in the socket forwarding path, so older systemd-coredump senders are handled gracefully. Co-developed-by: Claude <claude@anthropic.com>
Files in this directory contain configuration for systemd-sysctl.service, a service to configure sysctl kernel parameters. See man:sysctl.d(5) for explanation of the configuration file format, and man:sysctl(8) and man:systemd-sysctl.service(8) for a description of when and how this configuration is applied. Use 'systemd-analyze cat-config sysctl.d' to display the effective config.