[ovs-dev] Datapath kern log msg key attribute error

[Andy Zhou]

How about we skip logging each unexpected key attributes once?  We can
use a u64 bit fields to keep track the flow key attributes in the
kernel module.

On Thu, Apr 24, 2014 at 6:30 PM, Jesse Gross <jesse at nicira.com> wrote:
> On Thu, Apr 24, 2014 at 4:30 PM, Jarno Rajahalme <jrajahalme at nicira.com> wrote:
>>
>> On Apr 24, 2014, at 3:32 PM, Ben Pfaff <blp at nicira.com> wrote:
>>
>>> On Thu, Apr 24, 2014 at 02:57:28PM -0700, Jesse Gross wrote:
>>>> I suppose the other possibility is to pass some kind of flag attribute
>>>> with messages indicating that this is a test probe and would silence
>>>> logging. Existing kernels would ignore this so they would still log
>>>> but the behavior would be otherwise unchanged.
>>>
>>> That makes me nervous--it poses the temptation of changing behavior in
>>> some other way, not just log-wise.
>>
>> How about a specific netlink (DP) command to set the logging level and invoking it before and after probing?
>
> I guess something seems vaguely wrong about this to me - it seems to
> assume too much about the kernel implementation.
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