Control: tags -1 + moreinfo Hi
On Thu, Oct 03, 2019 at 09:24:26AM +0100, Anton Ivanov wrote: > Package: src:linux > Version: 4.19.67-2+deb10u1 > Severity: important > > Dear Maintainer, > > noht has no effect. > > I have been trying to chase down a weird hang which occurs only on 6 > core/12 thread Ryzens (I cannot reproduce it on 4/8 or older CPUs). > > As a part of that I tried to disable ht. Well, it cannot be disabled > - the noht command line arg has no effect whatosever. > > As ht can be a security hole this may have security implications as > well. Do you mean 'nosmt'? (See kernel-parameters.txt). You can find further information as well in Documentation/admin-guide/hw-vuln/l1tf.rst. Regards, Salvatore