Re: FreeBSD 13.2-p1 hanging

Just an update on status.  I did three things:

Disabled ASLR in /boot/loader.conf

kern.elf64.aslr.enable=0
kern.elf32.aslr.enable=0

I did this b/c I read that in 13.2 it was automatically enabled.

I also set a flag to control the growth of the ARC

vfs.zfs.arc_max="4294967296"

finally, since I have multiple jails, I wondered if something had 
changed that would make old userspace binaries a problem.  So I upgraded 
all jails with ezjail.

The net result is that the host is up since about the 20th of the month.

Thank everyone who took the time to respond to my ask for help.

> Graham Perrin <mailto:grahamperrin@freebsd.org>
> July 15, 2023 at 9:49 AM
>
> On 13/07/2023 01:22, Tom Everett wrote:
>
> I should not treat freebsd-update as a sane approach to downgrading.
>
> Instead, if downgrade is essential, build from source.
>
> On the releng/13.2 branch 
> <https://cgit.freebsd.org/src/log/?h=releng/13.2>, tag release/13.2.0 
> (preceding patch 1) is at:
>
> <https://cgit.freebsd.org/src/tag/?h=release/13.2.0>
> commit aab15c8d11a299cc11fd1d1cd09aec11383c99bc
> <https://cgit.freebsd.org/src/commit/?id=aab15c8d11a299cc11fd1d1cd09aec11383c99bc>
>
> Tom Everett <mailto:tom@khubla.com>
> July 12, 2023 at 6:22 PM
> Well, it may be time to downgrade.  I've cleaned all the fans with 
> compressed air, since heat is always a suspect, and disconnected USB 
> devices.  Over the past two weeks the host now has an MTBF of about 2 
> days.  Always the same symptom; it just freezes.   I enabled SMART on 
> the root disk; it seems to be healthy.  I don't see any concerning 
> messages in the logs.
>
> I am on FreeBSD 13.2-RELEASE-p1 GENERIC amd64
>
> So, to downgrade to the previous kernel would this be the right 
> command-line?
>
> freebsd-update upgrade -r 13.2-RELEASE
> freebsd-update install
> freebsd-update install
> pwd_mkdb /etc/master.passwd
> pkg-static install -fy pkg
> pkg upgrade -fy
> freebsd-update install
> reboot
>
> (instructions essentially from here: 
> https://lifeforms.nl/20141224/downgrading-with-freebsd-update)
>
> Graham Perrin <mailto:grahamperrin@freebsd.org>
> July 3, 2023 at 11:05 PM
>
> On 02/07/2023 00:50, Steven Friedrich wrote:
>
> Am I missing something?
>
> (This is a RELEASE case.)
>
> Steven Friedrich <mailto:freebsdlouisville@gmail.com>
> July 1, 2023 at 5:50 PM
> I would try the buildworld, buildkernel before spending time fretting. 
> YMMV.
>
>
>
> Graham Perrin <mailto:grahamperrin@freebsd.org>
> July 1, 2023 at 11:06 AM
> On 01/07/2023 16:37, Tom Everett wrote:
>
>
>
> Add the line below to /etc/sysctl.conf then restart the OS.
>
> hw.acpi.power_button_state="S5"
>
>
> S5 should cause a press on the power button to gracefully shut down 
> the computer. In my experience this button sometimes works when 
> FreeBSD is otherwise unresponsive.
>
> I guess, the next thing to consider would be graphics.
>
>

-- 
Sent from Postbox <https://www.postbox-inc.com>