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Date:      Fri, 17 Jul 2020 18:21:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        x11@FreeBSD.org
Subject:   [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
Message-ID:  <bug-247441-7141-jr6lAnFDdd@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-247441-7141@https.bugs.freebsd.org/bugzilla/>
References:  <bug-247441-7141@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D247441

--- Comment #10 from Scott Bennett <bennett@sdf.org> ---
     I had not been aware that a stable/11 revision became unsupported in u=
nder
80 days.
     11.2+ and 12 have kernel bugs in memory management that necessitate
reboots every few days to return the system to usability.  That time period=
 can
be extended if the kinds of things run on the system are very limited and
some sysctl variables are properly tweaked.  However, whether sooner or lat=
er,
a reboot is necessary.  For example, since my most recent reboot, the system
has remained up for a bit over 28 days, but it will have to be rebooted soon
because the pagedaemon is taking 60% to 100% of one core in searching for p=
age
frames it can return to the free list because the free list has finally dro=
pped
below 410 MB, the amount I set vm.pageout_wakeup_thresh because it appears =
to
be the minimum necessary for the kernel to start paging in a process that h=
as
been marked a swapped out, even something as small as /bin/sh.  An OS that
needs a reboot every few days (usually between 3 and 9) is not a production
version by any stretch of the imagination.  We lived with such things in the
1960s, but things were also expected to be better in the future.  They *wer=
e*
better for quite a while, but apparently FreeBSD has reversed course in that
respect.
     As for your questions, I thought my previous response was clear enough,
but then, I thought my original description was, too.  Apparently, neither =
was.
I have not, at present, any reason good enough to justify the lost time to =
do
an upgrade to 12.1, whether -RELEASE or -STABLE.  Has there been any change=
 to
gpu-firmware-kmod for stable/11 since 28 April 2020?  If not, then I would
expect the GPU hangs to remain a problem.  If so, please advise, and I will
rebuild gpu-firmware-kmod.  Has radeonkms.ko had any changes to how it is
intended to respond to a GPU hang?  If the GPU hangs may have been fixed, t=
hen
it may not matter so much whether DRM has been fixed, at least until the ne=
xt
GPU-hanging bug is introduced into firmware for a card.  If the firmware is
still buggy, but DRM's response may have changed, then I will try it.  If n=
ot,
then there appears to be no reason for me to waste the time on it.
     So please do let me know whether each port has been updated in a way t=
hat
may help.
     I have never run -CURRENT and don't intend to do so unless conceivably=
 in
a VM.  I only have one functional machine.  By today's standards it is now
slow, so I don't want to divert it very much from the work I have it doing.

--=20
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