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From: Thomas Gleixner <tglx@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>,
	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: Thu, 28 May 2020 14:06:17 +0200	[thread overview]
Message-ID: <874ks0p8li.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20200524185800.GV325280@hirez.programming.kicks-ass.net>

Peter Zijlstra <peterz@infradead.org> writes:
> 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.

Well, it prevents the kernel to use TSC upfront and not wait until it's
discovered to be crap. That might make a difference.

Thanks,

        tglx

  reply	other threads:[~2020-05-28 12:06 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
2020-05-28 12:06   ` Thomas Gleixner [this message]
2020-05-28 13:56     ` Peter Zijlstra

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