[ovs-discuss] branch-2.3: rx/tx counter overflow

[Ben Pfaff]

On Mon, Oct 27, 2014 at 9:15 AM, Andrey Korolyov <andrey at xdel.ru> wrote:
> On Mon, Oct 27, 2014 at 7:15 PM, Ben Pfaff <blp at nicira.com> wrote:
>> On Mon, Oct 27, 2014 at 08:12:28PM +0400, Andrey Korolyov wrote:
>>> On Mon, Oct 27, 2014 at 7:09 PM, Ben Pfaff <blp at nicira.com> wrote:
>>> > On Mon, Oct 27, 2014 at 08:05:01PM +0400, Andrey Korolyov wrote:
>>> >> On Mon, Oct 27, 2014 at 7:04 PM, Ben Pfaff <blp at nicira.com> wrote:
>>> >> > On Mon, Oct 27, 2014 at 07:55:01PM +0400, Andrey Korolyov wrote:
>>> >> >> ovs-ofctl dump-ports currently reporting values not large than u32 in
>>> >> >> the mentioned branch. lib/ofp-util.c has no regressions at a glance,
>>> >> >> probably truncation going in the different (not so obvious) way.
>>> >> >
>>> >> > Are you using a 64-bit kernel?  There is some unavoidable truncation
>>> >> > with 32-bit kernels.
>>> >>
>>> >> Yes, of course.
>>> >
>>> > Thanks.  I guess you must have previously seen 64-bit values with some
>>> > earlier version.  Do you know what the most recent version was?
>>>
>>> For 0fe1d7f39de9836fea01c560a6fdbfd1405096ea it is clearly positive
>>> that it reports 64-bit counter values (branch-2.1). Had not tested
>>> against other revisions yet. Are you suggesting that the counter
>>> behavior with 32b limit is currently taken as a right one?
>>
>> I am trying to narrow down the range of commits that could have caused
>> the problem.  "git bisect" would be the ideal way to do it, if you are
>> willing and able to try it.
>
> Heh, okay. I`m signing over bisection, please give me some time :)

Thanks a lot.