Messages in this thread | | | Date | Mon, 2 Apr 2001 08:46:47 +0200 () | From | Thomas Pfaff <> | Subject | Re: 2.4.2: System clock slows down under load |
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On Tue, 27 Mar 2001, Steven Walter wrote:
> On Tue, Mar 27, 2001 at 01:42:39PM +0200, Thomas Pfaff wrote: > > Hi all, > > > > i decided to make a test for the 2.4 kernel on my old hardware (Gigabyte > > EISA/VLB with an AMD 486 DX4 133). The kernel boots fine but there is one > > strange thing: The system clock slows down under load, after a make > > dep in the linux src directory it is about 2 minutes behind. This appears > > both in 2.4.1 and in 2.4.2 (I have not tried 2.4.0 yet). > > > > I have attached a gzipped dmesg. > > > > Any ideas ? > > I notice that you're using fbcon from your dmesg. There was a > discussion about this a while back, and it was determined that fbcon > runs with interrupts disabled for unhealthily long period of time. This > causes it to miss timer interrupts, and the system lock get behind. See > if this slowdown occurs with vgacon. If it does, its probably just a > cheap crystal on the motherboard. > > -- > -Steven > Freedom is the freedom to say that two plus two equals four. > > >
You are right. If i compile with vgacon it works fine.
I would be really glad if vesa fbcon in 2.4 would run without that problem like in all 2.2 kernels i have installed. It is the easiest way to get X and virtual consoles on my S3 graphic card.
Thanks,
Thomas
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