[$] Revisiting stable-kernel regressions
Stable-kernel updates are, unsurprisingly, supposed to be stable; that is
why the first of the rules
for stable-kernel patches requires them to be "obviously correct
and tested".
Even so,
for nearly as long as the kernel community has been producing stable update
releases, said community has also been complaining about regressions that
make their way into
those releases. Back in 2016, LWN did some
analysis that showed the presence of regressions in stable releases, though
at a rate that many saw as being low enough. Since then, the volume of
patches showing up in stable releases has grown considerably, so perhaps
the time has come to see what the situation with regressions is with current stable kernels.