rr

As usual there are lots of small improvements and bugfixes. The main feature of this release is that in kernels >= 6.10, rr now works with perf_event_paranoid set to 2, which is the default for most distributions. This requires a kernel [bug fix](https://github.com/torvalds/linux/commit/fd20bb51ed3913e0d25085eb7...

As usual, this release contains many small bug fixes and updates for new syscalls and CPU microarchitectures.

There is some support for lldb now. rr replay -d lldb will launch LLDB and connect it to rr just like we do for gdb. LLDB does not expose reverse-execution commands so for now, you can only replay forwards. (Of course you can still replay a recording as many times as you need to.)

This release includes many bug fixes, improvements to system call coverage, and incremental performance improvements. In particular, performance is improved for applications with thousands of threads (partly via the new WaitManager). A lot of rare intermittent bugs have been fixed, partly due to significant reworking of how unexpected task exits are handled.

The required Linux kernel version...

This release includes many bug fixes, improvements to system call coverage, and incremental performance improvements. Plus:

• ARM Aarch64 support is now production quality (features implemented and tests pass), with some caveats. Recent iterations of Cortex and Neoverse (AWS Graviton) chips are supported, as is Apple M1 (when running Linux on bare...

As usual there are many bug fixes, improvements to system call coverage, and incremental performance improvements. Thanks to all our contributors.