ap_vlan_open exits hwsim tests

[Jacob Minshall]

On Tue, Mar 11, 2014 at 5:43 PM, Eduardo Abinader
<eduardo.abinader at openbossa.org> wrote:
> It was a timeout issue in wpaspy:
>
>     def request(self, cmd):
>            self.s.send(cmd)
>            [r, w, e] = select.select([self.s], [], [], 20)
>            if r:
>
> I just increased the timeout and everything went fine. Don't know why do I
> need now to do such change, in order to get my tests running ok. A change in
> hwsim? I was using latest wireless-testing head for my tests.
>
> Jouni, it is ok if I send you a patch with this incremented value (from 10
> to 20)? I've tested with 15 and it failed also.
>
> Cheers.
>
>
> On Tue, Mar 11, 2014 at 3:53 PM, Eduardo Abinader
> <eduardo.abinader at openbossa.org> wrote:
>>
>> I've run tests on kvm with v3.14-rc4 and on non-virtual machines. The
>> behavior I reported, termination earlier, was due to a crash in my kvm. It
>> occurs that this test is freezing my real machine, event if it is run
>> separetely (run-tests.py -f ap_vlan).
>>
>> I suspect of configure filter function in hwsim that is causing such
>> issue, as can be seen in the message logs below:
>>
>> ===> From VM logs:
>> [ 1610.660319] kobject: 'brport' (ffff880078d35558): kobject_uevent_env
>> [ 1610.660341] kobject: 'brport' (ffff880078d35558): kobject_uevent_env:
>> filter function caused the event to drop!
>> [ 1610.663776] kobject: 'rx-0' (ffff88007afc3b20): kobject_release, parent
>> ffff88007afc1750 (delayed 100)
>> [ 1610.667599] kobject: 'tx-3' (ffff880078df4bf8): kobject_release, parent
>> ffff88007afc1750 (delayed 300)
>> [ 1610.671548] kobject: 'tx-2' (ffff880078df49b8): kobject_release, parent
>> ffff88007afc1750 (delayed 100)
>> [ 1610.674346] kobject: 'tx-1' (ffff880078df4778): kobject_release, parent
>> ffff88007afc1750 (delayed 400)
>> [ 1610.675251] kobject: 'tx-0' (ffff880078df4538): kobject_release, parent
>> ffff88007afc1750 (delayed 300)
>>
>> ===> From real machine logs:
>> kernel: [  298.329711] ieee80211 phy2: mac80211_hwsim_config
>> (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
>> kernel: [  298.329728] ieee80211 phy2: mac80211_hwsim_configure_filter
>> kernel: [  298.329744] IPv6: ADDRCONF(NETDEV_UP): wlan2: link is not ready
>> kernel: [  298.329747] ieee80211 phy2: mac80211_hwsim_configure_filter
>> kernel: imklog 5.8.11, log source = /proc/kmsg started.
>>
>>
>> The kvm logs are available at
>> https://www.dropbox.com/s/miuo7z2rscj2rwg/kvm_logs.tgz
>>
>>
>> Thanks.
>>
>> On Tue, Mar 11, 2014 at 9:54 AM, Jouni Malinen <j at w1.fi> wrote:
>>>
>>> On Tue, Mar 11, 2014 at 09:13:57AM -0400, Eduardo Abinader wrote:
>>> > With current master branch (390b92913a9a1b3a6aaf70e8b5971a7b7c76cabc),
>>> > in
>>> > every environment I
>>> > test, hwsim test is exiting just after ap_vlan_open with the message:
>>> > 'Terminating early due to device reset failure', although I have
>>> > noticed
>>> > success in buildbot.
>>>
>>> I don't see that in any of my test setups. Could you please check the
>>> end of each ap_vlan_open log file to see if they show any signs of a
>>> process getting stuck or terminating? If no, please check all log files
>>> in the same directory that are newer than ap_vlan_open* logs.

I have noticed the same behaviour when running in a virtual machine.
The test will fail for me with the latest wireless-testing kernel, but
it passes with v3.13 for me. I will do a git bisect tomorrow if no one
else has by then. Since increasing the timeout fixes it, maybe
whatever is happening is now taking longer than it did before?
>>>
>>> --
>>> Jouni Malinen                                            PGP id EFC895FA
>>> _______________________________________________
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>>> HostAP at lists.shmoo.com
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>>
>>
>
>
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-- 
Jacob Minshall
cozybit Inc.
http://www.cozybit.com