Dear RT Folks, I'm pleased to announce the 4.19.72-rt25 stable release. **** <NOTE> **** As you probably have noticed, it has been a long time since I released a stable 4.19-rt. The reason for this delay is that one of my tests failed after merging with the latest stable upstream. I refuse to push releases with a known bug in it, so I figured I would find the bug before releasing. I only spend around 4 to 6 hours a week on upstream stable RT as I have other responsibilities, and I could not debug this bug during that time (after several weeks of trying). The bug is a random NULL pointer dereference that only happens with lockdep enabled and on 32bit x86. I also found that this bug existed before the latest stable pull release but now it is much easier to trigger. I have not been able to trigger this bug in the 64 bit kernel, and as I rather do a release than waste more time on this bug and postpone the release further, I am now doing that. As a consequence, I am no longer supporting 32bit x86, as it is known to have this bug. If you are interested in this, I am willing to send out the config I am using and one of the dmesg crashes. Just ask. **** </NOTE> **** This release is just an update to the new stable 4.19.72 version and no RT specific changes have been made. You can get this release via the git tree at: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git branch: v4.19-rt Head SHA1: 9cd04ab6a9a162ac4189a80032261d243563ff45 Or to build 4.19.72-rt25 directly, the following patches should be applied: http://www.kernel.org/pub/linux/kernel/v4.x/linux-4.19.tar.xz http://www.kernel.org/pub/linux/kernel/v4.x/patch-4.19.72.xz http://www.kernel.org/pub/linux/kernel/projects/rt/4.19/patch-4.19.72-rt25.patch.xz Enjoy, -- Steve
