Recent 6.0-CURRENT and VMware 4.2.1: boot problem with PREEMPTION enabled kernel

[SANETO Takanori]

I have the same problem with 5.3-BETA5 on VMware 4.2.1 guest.
I'll try disabling PREEMPTION later.

----- Original Message ----- 
From: "Makoto Matsushita" <matusita at jp.FreeBSD.org>
To: <current at FreeBSD.org>
Sent: Monday, September 13, 2004 12:02 AM
Subject: Recent 6.0-CURRENT and VMware 4.2.1: boot problem with PREEMPTION 
enabled kernel


>
> I've just found that my VMware Workstation virtual machine doesn't
> boot as expected with recent 6.0-CURRENT kernel.  For example, with
> 6.0-CURRENT-20040912-JPSNAP boot floppies, following three lines are
> the last message, and stops VM forever:
>
> md0: Preloaded image </mfsroot> 4423680 bytes at 0xc0a33764
> acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
> pid 24: corrected slot count (0->1)
>
> I've tried to boot with the floppies "boot -v", and got:
>
> ata0: reiniting channel ..
> ata0: reset tp1 mask=03 ostat0=50 ostat1=50
> ata0-master: stat=0x50 err=0x01 lsb=0x00 msb=0x00
> ata0-slave:  stat=0x50 err=0x01 lsb=0x00 msb=0x00
> ata0: reset tp2 stat0=50 stat1=50 devices=0x3<ATA_SLAVE,ATA_MASTER>
> ata0: resetting done ..
> pid 24: corrected slot count (0->1)
> ata0: reiniting channel ..
> ata0: reset tp1 mask=03 ostat0=50 ostat1=50
> (... and stops)
>
> After some try-and-error challenge, it seems that this occurs if
> PREEMPTION kernel option is enabled (note that SCHD_4BSD is used).
>
> In anyway, anybody have experienced this problem?  I'm afraid that
> next 5.3 beta (it'll be 5.3-BETA4) have the same problem.
>
> -- -
> Makoto `MAR' Matsushita
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