From: Benjamin Herrenschmidt <bh40@calva.net>
To: Martin Costabel <costabel@wanadoo.fr>, linuxppc-dev@lists.linuxppc.org
Subject: Re: Extreme swapping / new location of Paul's kernels [was Re: Kernel debugging??]
Date: Fri, 19 Nov 1999 11:25:22 +0100 [thread overview]
Message-ID: <19991119112522.020925@mailhost.mipsys.com> (raw)
In-Reply-To: <38349F1A.8AECF96F@wanadoo.fr>
On Fri, Nov 19, 1999, Martin Costabel <costabel@wanadoo.fr> wrote:
> kernel: Calibrating delay loop... 133.12 BogoMIPS
>
>Booting with BootX-1.2b2, I get with the same kernels
>
> kernel: Calibrating delay loop... 11.39 BogoMIPS
>
>This is repeatable, but for me quite incomprehensible.
Ouch. Could this be a problem with VIA-based calibration in the kernel ?
Paul ? Any clue ? I don't see what in BootX could cause this to happen,
probably MacOS playing tricks with the VIA behind my back... I just
looked at the calibration code, and it looks ok, except if interrupts are
enabled during the calibration (Actually, I don't know if MSR-EE is
enabled at this point, I should really add code to BootX that masks all
interrupts in the controller before launching the kernel anyway).
If I remember correctly, Martin, your machine has a 603. There is a
possibility that, for some reason, MacOS changes the PLL settings in HID1
(but I don't really see why this would happen with BootX 1.2x and not
with previous versions).
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~1999-11-19 10:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-11-16 12:25 Kernel debugging?? Andreas Tobler
1999-11-16 15:52 ` Ani Joshi
1999-11-16 16:03 ` Andreas Tobler
1999-11-16 17:45 ` Geert Uytterhoeven
1999-11-16 22:44 ` Martin Costabel
1999-11-17 21:08 ` Geert Uytterhoeven
1999-11-17 23:48 ` Martin Costabel
1999-11-18 9:13 ` Martin Costabel
1999-11-18 0:35 ` Extreme swapping / new location of Paul's kernels [was Re: Kernel debugging??] phandel
1999-11-18 10:04 ` Benjamin Herrenschmidt
1999-11-18 10:22 ` phandel
1999-11-18 10:40 ` Benjamin Herrenschmidt
1999-11-19 0:51 ` Martin Costabel
1999-11-19 10:25 ` Benjamin Herrenschmidt [this message]
1999-11-18 2:37 ` Kernel debugging?? Paul Mackerras
1999-11-18 17:32 ` Michael Fenske
1999-11-18 18:30 ` Benjamin Herrenschmidt
1999-11-19 9:10 ` Michael Fenske
1999-11-20 19:36 ` Joel Klecker
1999-11-18 18:34 ` Kevin Hendricks
1999-11-18 23:29 ` Paul Mackerras
1999-11-18 10:02 ` Benjamin Herrenschmidt
1999-11-22 20:00 ` Geert Uytterhoeven
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