[CalendarServer-dev] Exception in recvfd --was: Re: continuing work on FreeBSD ports

[Axel Rau]

I did not make any progress. I tried
- in sendmsg_sendmsg to check for the right type arg (with PyErr_Format, got no error)
- to print out the args with PySys_WriteStdout (did not get anything)
- I'm not even sure, if this error is related to my problem:
    test_sendSubProcessFD ...                         [ERROR]
- If I try control_message->cmsg_type = 0;, I get Errno 22 in sendfd, as expected

I need more pointers...
 
Axel

Am 08.02.2013 um 13:30 schrieb Fredrik Unger:

> Hi,
> 
> I found some problem with sendfd.c some time ago. [1]
> 
> My problem was with 64 bit Debian and twext/python/sendmsg.c
> 
> Have a look and see if there is anything that is FreeBSD non friendly there.
> 
> You can try with the tests :
> cd twext/python
> trial test/test_sendmsg.py
> That could be easier to debug than the full code.
> 
> On my setup I failed test_sendSubProcessFD now, but I just did a quick test. Sources are not up to date or anything..
> 
> You can also add some printouts to the C code, and see if you find something bad.
> 
> It is most probably some flags or so that might not be covered for BSD ?
> and sendmsg.c is the interface to the operating system from python..
> 
> Just some suggestions. If you need more pointers let me know, but I have no experience with FreeBSD..
> 
> /Fred
> 
> [1] https://lists.macosforge.org/pipermail/calendarserver-users/2012-August/002032.html
> 
> On 02/08/2013 01:04 PM, Axel Rau wrote:
>> 
>> Am 02.02.2013 um 17:39 schrieb Axel Rau:
>> 
>>> [caldav-0] 	  File "/usr/local/lib/python2.7/site-packages/Calendar_and_Contacts_Server-4.2-py2.7-freebsd-8.2-RELEASE-p9-amd64.egg/twext/python/sendfd.py", line 65, in recvfd
>>> [caldav-0] 	    [unpackedFD] = unpack("i", packedFD)
>>> [caldav-0] 	struct.error: unpack requires a string argument of length 4
>> This is hard to debug. I did not make much progress.
>> If I switch to kqueue-reactor, I'm getting another FD problem when starting listening:
>> ---
>> Log opened.
>> twistd 12.1.0 (/usr/local/bin/python2.7 2.7.3) starting up.
>> reactor class: twext.internet.kqreactor.KQueueReactor.
>> ControlSocket starting on '/var/db/caldavd/caldavd.sock'
>> Traceback (most recent call last):
>>   File "/usr/local/bin/twistd", line 14, in<module>
>>     run()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/scripts/twistd.py", line 27, in run
>>     app.run(runApp, ServerOptions)
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/app.py", line 652, in run
>>     runApp(config)
>>   File "/usr/local/lib/python2.7/site-packages/twisted/scripts/twistd.py", line 23, in runApp
>>     _SomeApplicationRunner(config).run()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/app.py", line 390, in run
>>     self.postApplication()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/scripts/_twistd_unix.py", line 230, in postApplication
>>     self.startApplication(self.application)
>>   File "/usr/local/lib/python2.7/site-packages/twisted/scripts/_twistd_unix.py", line 340, in startApplication
>>     service.IService(application).privilegedStartService()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/service.py", line 277, in privilegedStartService
>>     service.privilegedStartService()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/service.py", line 277, in privilegedStartService
>>     service.privilegedStartService()
>>   File "/usr/local/lib/python2.7/site-packages/Calendar_and_Contacts_Server-4.2-py2.7-freebsd-9.1-RELEASE-amd64.egg/calendarserver/tap/caldav.py", line 487, in privilegedStartService
>>     super(GroupOwnedUNIXServer, self).privilegedStartService()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/internet.py", line 105, in privilegedStartService
>>     self._port = self._getPort()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/application/internet.py", line 133, in _getPort
>>     'listen%s' % (self.method,))(*self.args, **self.kwargs)
>>   File "/usr/local/lib/python2.7/site-packages/twisted/internet/posixbase.py", line 406, in listenUNIX
>>     p.startListening()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/internet/unix.py", line 303, in startListening
>>     self.startReading()
>>   File "/usr/local/lib/python2.7/site-packages/twisted/internet/abstract.py", line 416, in startReading
>>     self.reactor.addReader(self)
>>   File "/usr/local/lib/python2.7/site-packages/Calendar_and_Contacts_Server-4.2-py2.7-freebsd-9.1-RELEASE-amd64.egg/twext/internet/kqreactor.py", line 84, in addReader
>>     self._updateRegistration(fd, KQ_FILTER_READ, KQ_EV_ADD|KQ_EV_ENABLE)
>>   File "/usr/local/lib/python2.7/site-packages/Calendar_and_Contacts_Server-4.2-py2.7-freebsd-9.1-RELEASE-amd64.egg/twext/internet/kqreactor.py", line 74, in _updateRegistration
>>     self._kq.control([ev], 0, 0)
>> OSError: [Errno 9] Bad file descriptor
>> ---
>> Any help appreciated,
>> Axel
>> ---
>> PGP-Key:29E99DD6  ☀ +49 151 2300 9283  ☀ computing @ chaos claudius
>> 
>> _______________________________________________
>> calendarserver-dev mailing list
>> calendarserver-dev at lists.macosforge.org
>> https://lists.macosforge.org/mailman/listinfo/calendarserver-dev
> 
> _______________________________________________
> calendarserver-dev mailing list
> calendarserver-dev at lists.macosforge.org
> https://lists.macosforge.org/mailman/listinfo/calendarserver-dev

---
PGP-Key:29E99DD6  ☀ +49 151 2300 9283  ☀ computing @ chaos claudius