On Tue, Mar 17, 2020 at 09:39:21AM -0600, Gabe Stanton via Dng wrote:
> One more thing, I'm actually on kernel version 4.19.0.8, but again,
> this issue started when I upgraded to beowulf.
I've been on beowulf for months now, doing the usual upgrades every
few weeks, but only started experiencing
freezes in the past week or two. I don't know what causes them.
hendrik@midwinter:~$ uname -a
Linux midwinter 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux
hendrik@midwinter:~$
-- hendrik
>
> On Tue, 2020-03-17 at 09:34 -0600, Gabe Stanton via Dng wrote:
> > I've had problems with my machine freezing as well, same symptoms,
> > ever
> > since upgrading to beowulf. The issue for me seems to happen when I
> > run
> > a cpu/ram heavy program, specifically a cpu cryptominer. I've had it
> > happen a number of times, always when mining with max 2 cores, but
> > haven't dedicated the time to report it properly. I did look through
> > various logs in /var/logs but I didn't see anything seemed relevant
> > to
> > the problem.
> >
> > I'll try to reproduce it today and send any relevant logs.
> >
> > What logs specifically would be relevant to this issue?
> >
> > Something relevant to the spectre/meltdown mitigations, I have
> > multithreading turned off in the bios and have had since the vuln's
> > were revealed.
> >
> > Also, 64 bit intel cpu here as well.
> >
> > On Tue, 2020-03-17 at 03:17 +0000, tuxd3v wrote:
> > > Hello Riccardo,
> > >
> > > > On Sat, 7 Mar 2020 12:19:52 +0100
> > > > Riccardo Mottola via Dng <dng@???> >wrote:
> > > > Hi,
> > > >
> > > >
> > > > I am using Devuan on an HP laptop with intel 64bit cpu.
> > > > Everything
> > > > worked very well, I did a lot of compilation and it is very
> > > > stable,
> > > > never had a freeze in months!
> > > >
> > > > [ 0.100000] smpboot: CPU0: Intel(R) Core(TM)2 CPU T7200 @
> > > > 2.00GHz
> > > > (family: 0x6, model: 0xf, stepping: 0x6)
> > > > [ 0.100000] Performance Events: PEBS fmt0-, Core2 events,
> > > > Intel
> > > > PMU
> > > > driver.
> > > > [ 0.100000] core: PEBS disabled due to CPU errata
> > > >
> > > > Yesterday I installed a kernel upgrade, bad things happened
> > > >
> > > > 1) after the first reboot with the new kernel, I get up to my
> > > > desktop,
> > > > check out sources ad start building Arctic Fox browser, come back
> > > > after
> > > > a time and find the machine completely frozen - no disk activity,
> > > > no
> > > > mouse possible, no errors. No response to power button pressed
> > > > (had
> > > > to
> > > > press 5 seconds)
> > > >
> > > > 2) at reboot, machine freezes quite early in the boot process
> > > >
> > > > 3) I retry and it still freezes
> > > >
> > > >
> > > > I tried selecting in GRUB the older kernel and it boots. It goes
> > > > past
> > > > the last error, starts file system check/journal replay and the
> > > > machine
> > > > seems stable again.
> > > >
> > > >
> > > > This is the last good kernel version:
> > > >
> > > > 4.9.0-11-amd64 #1 SMP Debian 4.9.189-3+deb9u2 (2019-11-11) x86_64
> > > > GNU/Linux
> > > >
> > > >
> > > > the unstable version must be the version 4.9.210-1 installed
> > > >
> > > >
> > > > What could the issue be? I read about backports of spectre
> > > > mitigations
> > > > being possible issues.
> > > >
> > >
> > > * 'linux-image-4.9.0-12' - I believe , brings Meltdown, Spectre and
> > > such mitigation's with it, also fix's..
> > > * 'linux-image-4.9.0-11' - Here , sometimes( firefox + youtube
> > > videos
> > > ), I also have freezes, but the machine ends rebooting..
> > > Don't know why, never found the real
> > > reason for it..
> > > If I don't go on youtube, everything
> > > works, so focus your self on your taks,
> > > and don't be lazy( its what my computer
> > > tells me ) :D
> > >
> > > For a better understanding of the changes, you can check:
> > > ~# zless /usr/share/doc/linux-image-$(uname -r)/changelog.Debian.gz
> > >
> > >
> > > I am also in 'linux-image-4.9.0-11'..and I plan to be there for
> > > some
> > > time.. :)
> > >
> > > Best Regards,
> > > tux
> > >
> > >
> >
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Re: [DNG] kernel instability 4.9.0-…
