From owner-freebsd-stable  Tue Sep 19 22:34:30 2000
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To: Marc Fonvieille <fonvi@easynet.fr>
Cc: freebsd-stable@freebsd.org
Subject: Re: pci.c from 2000/09/01 freeze my laptop 
In-reply-to: Your message of "Sat, 16 Sep 2000 13:54:50 +0200."
             <20000916135450.A7969@vobiscum.styx.org> 
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Date: Tue, 19 Sep 2000 22:35:02 -0700
From: Mike Smith <msmith@freebsd.org>
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> Hello,
> 
> I upgraded my 4-Stable on my laptop with ctms and after reboot
> with new kernel the system freeze after that line:
> 
> atapci0: <Intel PIIX4 ATA33 controller> port 0x8000-0x800f at device 7.1
> on pci0
> 
> So after long search i found that ctm src-4.0227.gz is guilty
> (with src-4.0226.gz and previous no problems)
...
> It seems that only the changes on sys/pci/pci.c could be the reason
> of the freeze.

Can you back this code out and confirm that you don't see the symptoms?  
In the case of your system, this code fragment shouldn't actually do 
*anything* at all, so I'm a little puzzled as to what might be going on.

Thanks.

> Here's the code:
> 
> CTMFN sys/pci/pci.c 70 70 644 0dec08827f728a7e3af51801b6d2ba4b
> 018e3bc3fa
> 551c0dd7d4dd59ed8681f6 405
> d26 1
> a26 1
>  * $FreeBSD: /ctm/FreeBSD/anoncvs/cvs/src/sys/pci/pci.c,v 1.141.2.3
>  * 2000/
> 09/01 23:29:34 msmith Exp $
> d1082 4
> a1085 8  
>         if (type == SYS_RES_IOPORT && !pci_porten(cfg)) {
>                 cfg->cmdreg |= PCIM_CMD_PORTEN;
>                 pci_cfgwrite(cfg, PCIR_COMMAND, cfg->cmdreg, 2);
>         }
>         if (type == SYS_RES_MEMORY && !pci_memen(cfg)) {
>                 cfg->cmdreg |= PCIM_CMD_MEMEN;
>                 pci_cfgwrite(cfg, PCIR_COMMAND, cfg->cmdreg, 2);
>         }
> 
> Any advices?
> (If you need more informations: dmesg..., ask for it.)
> 
> ps: in my kernel config i've got
> 
> # ATA and ATAPI devices
> device          ata0    at isa? port IO_WD1 irq 14
> device          ata1    at isa? port IO_WD2 irq 15
> device          ata
> device          atadisk                 # ATA disk drives
> device          atapicd                 # ATAPI CDROM drives
> options         ATA_STATIC_ID           #Static device numbering
> #options        ATA_ENABLE_ATAPI_DMA    #Enable DMA on ATAPI devices
> 
> Marc
> 
> 
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> 



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... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also.  But not because people want
to be opponents, rather because the tasks and relationships force
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