[PATCH] clean the event context after fork in fork_domain_child()

Stefan (metze) Metzmacher metze at samba.org
Mon Jan 5 14:02:22 GMT 2009

Stefan (metze) Metzmacher schrieb:
> boyang schrieb:
>> Stefan (metze) Metzmacher wrote:
>>> Hi BoYang,
>>>>      The point here is that there maybe outstanding requests in parent,
>>>> and async_request_timeout is set, which cause this child try to kill
>>>> some other child, probably be primary domain's child. Look, After
>>>> winbindd started, child for primary domain is forked, then other domains
>>>> such as BUILTIN. If there are outstanding requests sent to child for
>>>> primary domain, async_request_timeout handler is set, which is
>>>> inheritted in child for domain BUILTIN. Later, time expired and child
>>>> for BUILTIN sends SIGTERM to child for primary domain.
>>>>      Patches are in the attachment, Thanks!
>>> I think the real solution is to create a new event context in the child
>>> process (and free the parents context). In the end we should do that
>>> also within smbd...
>>> metze
>> Hi, Metze:
>>      I've finished the patch to clean event context after fork. Please
>> review it. In event_context_reinit(ev), I freed all timed_event and
>> fd_event to save some memory. Initial test and 'make test' looks fine.
> Thanks!
> I think freeing the events is dangerous, as it leaves broken pointers
> around.
> I integrated it without freeing the events and your krb5 ticket patch
> in this branch:
> http://gitweb.samba.org/?p=metze/samba/wip.git;a=shortlog;h=refs/heads/master3-tevent3
> It would be nice if you could test if that branch fixes still fixes all
> the problems you wanted to resolve.

as make test passes, I pushed it to master, so please test master.


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