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
>
>
::
Re: [DNG] kernel instability 4.9.0-…
