Date: Tue, 6 Dec 2005 02:22:57 +0700 From: Eugene Grosbein <eugen@kuzbass.ru> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-acpi@freebsd.org Subject: Re: 5.4: pci_link problem on 440BX Message-ID: <20051205192257.GC75425@svzserv.kemerovo.su> In-Reply-To: <200512021732.15866.jhb@freebsd.org> References: <20050513140240.GA25774@svzserv.kemerovo.su> <200512021732.15866.jhb@freebsd.org>
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> > 6.0's GENERIC does not boot to single user with
> > debug.acpi.disabled="pci_link", fatal trap 12 occures: page fault while in
> > kernel mode,
> > fault virtual address 0x0, supervisor read, page not present
> > in acpi_pci_link_lookup+0x26.
>
> I think I know what this is and this patch probably fixes the panic in the
> case that you use 'debug.acpi.disabled="pci_link"'
>
> --- //depot/vendor/freebsd/src/sys/dev/acpica/acpi_pci_link.c 2005/11/23 16:40:40
> +++ //depot/user/jhb/acpipci/dev/acpica/acpi_pci_link.c 2005/12/02 22:28:08
> @@ -1011,6 +1011,9 @@
> {
> struct link *link;
>
> + if (acpi_disabled("pci_link"))
> + return (PCI_INVALID_IRQ);
> +
> ACPI_SERIAL_BEGIN(pci_link);
> link = acpi_pci_link_lookup(dev, index);
> if (link == NULL)
>
6.0-RELEASE boots with this patch, ACPI enabled
and debug.acpi.disabled="pci_link", make buildworld started
but several minutes later kernel started to write to console:
ad4: req=0xc223d7d0 SETFEATURES SET TRANSFER MODE semaphore timeout !! DANGER Will Robinson !!
ad4: req=0xc223d7d0 SETFEATURES SET TRANSFER MODE semaphore timeout !! DANGER Will Robinson !!
ad4: req=0xc223d7d0 SETFEATURES SET TRANSFER MODE semaphore timeout !! DANGER Will Robinson !!
Every 4 seconds another line is appears.
Ctrl-T now shows:
load: 0.07 cmd: sh 16681 [ufs] 0.00u 0.00s 0% 284k
I cannot login using another vty, getty hangs too:
login: root
load: 0.08 cmd: getty 549 [ufs] 0.00u 0.00s 0% 928k
6.0-RELEASE is installed on ad6, and ad4 holds /usr/obj mounted
from 4.11 installation. ad4 is partitioned to hold
4.11-STABLE, Windows 98SE and Windows XP, all three OSes boot
and run from ad4 without a problem. 6.0-RELEASE with GENERIC kernel
behaves not so well.
However, previously established outgoing ssh session works
and I'm writting this letter using this session and pasting messages
with mouse :-)
Eugene Grosbein
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