On 17 maj 2012, at 12:53, Garry Dolley wrote:

> On Thu, May 17, 2012 at 03:19:07AM -0700, Garry Dolley wrote:
>> On Fri, May 11, 2012 at 09:13:30AM -0400, Simon Perreault wrote:
>>> On 2012-05-11 04:15, Garry Dolley wrote:
>>>> I now have an amd64 test VM set up, where I installed stock 5.0.
>>>>
>>>> I ran a lot of traffic over em0 without any timeouts.
>>>
>>> That's expected. 5.0 has been running without issue for me for a long
time.
>>>
>>>> I also have been trying several -current kernels.
>>>>
>>>> As of:
>>>>
>>>>   OpenBSD 5.1-current (GENERIC) #205: Wed Mar 28 21:40:45 MDT 2012
>>>>
>>>> I don't see any em0 timeouts.
>>>>
>>>> I will continue to try newer ones and report back here...
>>>
>>> Why not just test 5.1? Problems have been reported against 5.1, not
>>> -current.
>>
>> I now have a stock 5.1 test VM set up.
>>
>>  OpenBSD 5.1 (GENERIC) #181: Sun Feb 12 09:35:53 MST 2012
>>      dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
>>
>> I don't see any timeouts.  I grabbed the ports tree via curl several
>> times and have been slaving away at it over SSH.  I don't notice
>> anything wrong.
>>
>> So, perhaps this issue does not appear in stock 5.1, but in a newer
>> kernel.  I'll try something newer soon...
>
> I have tried the following newer kernels:
>
> bsd.20120330
> bsd.20120419
> bsd.20120427
> bsd.20120516
>
> I still can't reproduce the problem.
>
> I have disabled mpbios on all these kernels, forgot to mention that.
>
> I will leave this be for now; will pick it up again if any new
> information should arise.
>
> --
> Garry Dolley
> ARP Networks, Inc. | http://www.arpnetworks.com | (818) 206-0181
> Data center, VPS, and IP Transit solutions
> Member Los Angeles County REACT, Unit 336 | WQGK336
> Blog http://scie.nti.st
>


I have a running 4.9 release + patches ( i.e 4.9 stable) working perfect. When
Updated to 5.1 release + patches I have real problems with watchdog timeout
resets on my intel nic:s. Same hardware, but just different OpenBSD version.

I have tried a bunch of kernels from Stuart Henderson (Broken after 4.9.....).
I have also recompiled the 5.1 stable kernel with most  versions of the
if_em.c driver. I have compiled and tried the following...
(note that the userland was 5.1 stable with all kernel tests)

bsd-5.1-stable
bsd-5.1-stable_plus_if_em.c-1.249
bsd-5.1-stable_plus_if_em.c-1.250
bsd-5.1-stable_plus_if_em.c-1.251
bsd-5.1-stable_plus_if_em.c-1.252
bsd-5.1-stable_plus_if_em.c-1.253
bsd-5.1-stable_plus_if_em.c-1.254
bsd-5.1-stable_plus_if_em.c-1.263

Watchdog timeout resets on all versions.....

NOTE that the Watchdog timeout reset appears in version 1.249 of if_em.c as
well. And that version is default in 4.9 stable which works fantastic. So if I
haven't done anything totally wrong it must be related to something else in
the kernel. So.... my nic hardware and the kvm bios is the same. And an
if_em.c version that works in 4.9 is tried. ????????


I can see above that you got rid of the problem by testing the same version as
me.. But you use AMD and I use i386.
Also... I have a firewall with 2 nic:s. Often ONE nic works but the other
gives watchdog timeout resets and wont work.

Any clues?


Tnx

Per-Olov

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