From: Peter Zijlstra <peterz@infradead.org>
To: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: x86@kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: TSC problems with Acer TravelMate 5735Z
Date: Sun, 24 May 2020 20:58:00 +0200 [thread overview]
Message-ID: <20200524185800.GV325280@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <a8c0c572-6dba-8d35-69bd-5e7b19bf6aba@molgen.mpg.de>
On Sun, May 24, 2020 at 07:09:18PM +0200, Paul Menzel wrote:
> Dear Linux folks,
>
>
> I got my hands on an old Acer TravelMate 5735Z (Intel GM45/Cantiga) and
> installed Debian Sid/unstable with Linux 5.6.7 on it.
>
> Booting the system it takes a long time, and the systemd units fail to
> start. The logs contain that the TSC is unstable. Adding `tsc=unstable` to
> the Linux kernel command line fixes this.
It fixes nothing; it just doesn't get you the warning because you told
it upfront.
> Do you have an idea, what might cause this?
Yes, but you didn't include the dmesg of the affected case. IIRC it
actually spells it out for you.
> Do you have an idea, what might cause this,
It's a Core2, Core2 doesn't have stable TSC.
> and how it can be fixed?
Use a 'better' CPU :-)
next prev parent reply other threads:[~2020-05-24 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-24 17:09 Paul Menzel
2020-05-24 18:58 ` Peter Zijlstra [this message]
2020-05-28 12:06 ` Thomas Gleixner
2020-05-28 13:56 ` Peter Zijlstra
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