[ovs-discuss] make check failing on 2.x

[Andrey Korolyov]

On 02/10/2014 04:42 AM, Ben Pfaff wrote:
> On Mon, Feb 10, 2014 at 01:42:23AM +0400, Andrey Korolyov wrote:
>> On 02/09/2014 11:14 PM, Ben Pfaff wrote:
>>> On Sat, Feb 08, 2014 at 05:24:16PM +0400, Andrey Korolyov wrote:
>>>> 'ofproto - flow monitoring pause and resume' test failing continuously
>>>> during make check on all 2.x major branches. The problem is in
>>>> 'ovs-ofctl add-flows br0 flows.txt' execution which actually hangs a
>>>> test switch because set count is insanely high and test execution
>>>> actually hitting the timeout:
>>>>
>>>> wc -l ./tests/testsuite.dir/0613/flows.txt
>>>> 1400833 ./tests/testsuite.dir/0613/flows.txt
>>>>
>>>> filled with cookie=1,reg1=[incrementing count],actions=drop
>>>>
>>>> Can anyone please fix this?
>>>
>>> We don't see the problem.  What's different about your system?
>>>
>>
>> I am observing this behavior on wheezy with a couple of backports and on
>> gentoo on my laptop. Generic wheezy passes test just fine, I will try to
>> pin the issue and report in case of success.
> 
> What's in /proc/sys/net/core/rmem_max?
> 

Ben, thanks for this suggestion, you saved me a couple of hours -
non-default network memory settings led to this. Okay, and I almost
immediately faced another issue - check passes well as long as I am not
trying to build datapath at once, with kernel datapath 'ofproto-dpif -
NetFlow active expiration - IPv6 collector' failing. Though it is 2.1
still-experimental branch, I am willing to play first with it due to
easier mechanism to fake ARP responses. Please check the attached log
for details.
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