em0 watchdog reset (kern/60285)

Ben Stuyts ben at stuyts.nl
Sat Jan 17 16:25:21 PST 2004

On 17 Jan 2004, at 19:43, Robin Schoonover wrote:

> On Sat, 17 Jan 2004 19:29:12 +0100, Ben Stuyts wrote:
>> I am trying to setup -current (just cvsupped) on a Gigabyte GA-8KNXP
>> and I experience the same symptoms as mentioned in the PR in the
>> subject: em0 keeps getting watchdog resets, and is unusable.
>> (http://www.freebsd.org/cgi/query-pr.cgi?pr=kern%2F60285)
>> It seems there is an acpi problem, which might be related. (pcib2:
>> could not get PCI interrupt routing table for \\_SB_.PCI0.CSAB -
> The errata for 5.2 mentions:
> (10 Jan 2004) Although APIC interrupt routing seems to work correctly 
> on
> many systems, on some others (such as some laptops) it can cause 
> various
> errors, such as ata(4) errors or hangs when starting or exiting X11. 
> For
> these situations, it may be advisable to disable APIC routing, using 
> the
> ``safe mode'' of the bootloader or the hint.apic.0.disabled loader 
> tunable.
> Note that disabling APIC is not compatible with SMP systems.
> For you, it looks like you can't disable APIC, since you have a SMP 
> system.

Actually it is a hyper-threading cpu. I tried to disable HTT in the 
bios, and boot in safe mode, or boot without acpi, but the kernel 
panics immediately because of multiple entries for pci irq 18.

Kind regards,

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