weird printk timestamps

[Heid, Oliver]

Hello Sergey,
thanks a lot - that was quick! Just switch on the printk timestamp in
kernel config, and take a look at dmesg. The time is (obviously)
monotonous, but all times are larger than >4.000.000s. Its probably only
a cosmetic thing. I'll prepare a sample dmesg output..
Oliver

-----Original Message-----
From: axp-list-bounces at redhat.com [mailto:axp-list-bounces at redhat.com]
On Behalf Of Sergey Tikhonov
Sent: Friday, December 01, 2006 12:03
To: Linux on Alpha processors
Subject: Re: weird printk timestamps

Hi,

Heid, Oliver wrote:

>Dear all,
>I've noticed that printk has weird timestamps in 2.6.1[78] kernels on
>all my UP2000+, PC164 and XP1000 boxes. It seems that some recent CPU
>jiffies changes have not been ported to the alpha tree. My quick fix
>(???) for the (otherwise nicely working - a big thanks!!) 2.6.17.1[13]
>kernels was
>
>************
>--- include/linux/jiffies.h~	2006-06-18 03:49:35.000000000 +0200
>+++ include/linux/jiffies.h	2006-12-01 11:30:32.000000000 +0100
>@@ -119,7 +119,7 @@
>  * Have the 32 bit jiffies value wrap 5 minutes after boot
>  * so jiffies wrap bugs show up earlier.
>  */
>-#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ))
>+#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (0*HZ))
> 
> /*
>  * Change timeval to jiffies, trying to avoid the
>************
>
>Any comments?!
>    Oliver
>
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>
>  
>
Could you post the sample program that shows the problem? I will check 
it on my (AC3pre) kernel.

Regards,

-- 
Sergey Tikhonov

Solvo Ltd.
Saint-Petersburg, Russia
tsv at solvo.ru

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