[Bug 247441] graphics/gpu-firmware-kmod and or graphics/drm-fbsd11.2-kmod crashing 11.2 to 11.4 with a Radeon HD 5770 card

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247441

--- Comment #14 from Scott Bennett <bennett at sdf.org> ---
     Warner, I guess I need to correct my previous statement that Alexey had
asked the same questions I had.  My questions were rather more general than
his.  I asked, "Has there been any change to gpu-firmware-kmod for stable/11
since 28 April 2020?" and "Has radeonkms.ko had any changes to how it is 
intended to respond to a GPU hang?"  Surely the first question is easy enough
for anyone on the x11 team to answer.  The second one would likely take a bit
closer look at the update log for radeonkms.ko, but it also might be as simple
as seeing that there were no changes made at all during the time period in
question.  IOW, there ought to be no problem in answering the questions I had
asked, and it also I ought to take no more than a few minutes at worst to find
the answers and tell me.  If there is no difference in a module between two
dates, then updating to the current date should naturally be expected to be a
waste of time in terms of finding solutions to the problems.
     There is now a new obstacle for me.  My stable/11 "make buildworld" ran
to many hours, finally finishing about 7:15 p.m.  llvm continues to grow at an
alarming rate, so now it takes longer to build it than all the rest of FreeBSD
combined.  I then ran buildkernel, which ran almost to completion, but failed
near the very end due to large numbers of compilation errors from having
uncommented "options EVDEV_SUPPORT" because it is supposedly now required and
there is now supposedly a way to continue to use moused with it enabled.  So
next I will try updating to tonight's source tree and run it all again.  If I
don't see any changed modules that look like they might have anything to do
with EVDEV_SUPPORT, then I will look again tomorrow and, if necessary, repeat
each day or two until I do see such and then will try building world and kernel
again.  Until then, I don't see the need to waste processing time.
     I reiterate that I have not asked whether the problems in
gpu-firmware-kmod of drm-fbsd11.2-kmod have been fixed.  I have asked whether
the particular modules supporting a Radeon HD 5770 have even been changed
since 28 April 2020.
     Warner, I also have a parting question for you, raised by Niclas.  For how
many days is a particular stable/11 or stable/12 revision considered to be
supported?

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