Misc. bug: [Server] Crashes with a coredump during termination #12180

Name and Version

version: 4807 (72fc3916)
built with Intel(R) oneAPI DPC++/C++ Compiler 2025.0.4 (2025.0.4.20241205) for x86_64-unknown-linux-gnu

Operating systems

Linux

Which llama.cpp modules do you know to be affected?

llama-server

Command line

Any command line will work as long as it has loaded a model and is running.

Problem description & steps to reproduce

1. Run llama-server on a model
2. terminate/shut down the server

First Bad Commit

Not sure, but it is related to here:

and

It seems the server thread t is being destructed while still joinable at the time of termination.
This issue can be fixable by uncommenting the t.join(); statements in both places. Opened an issue instead because of the comment.

Relevant log output

srv  update_slots: all slots are idle
srv  log_server_r: request: POST /v1/chat/completions 127.0.0.1 200
^Csrv    operator(): operator(): cleaning up before exit...
terminate called without an active exception
Aborted (core dumped)