any debugging hunches on this assert in sendto_kdc.c?

[Chris Hecker]

Gah, this assert appears to be a gcc bug (this machine is running Centos 
5.6, sadly), after digging into the asm and modifying the code for 
hours.  The host+1 expression in the call to service_fds is not 
reloading host and is using $esi after a bunch of inlined functions, so 
it's reading the next fd after the end, which is 0.

So annoying.

Chris


On 2013-03-15 12:37, Chris Hecker wrote:
>
> If I have trouble fixing this for real, since it's pretty indirected
> where the fds coming from, can I get a call on how bad it would be to
> just return 0 from cm_get_ssflags if the fd doesn't exist?  It's only
> called from one place in sendto_kdc.c, from service_fds.
>
> sendto_kdc.c:617: cm_get_ssflags: Assertion `i < selstate->nfds' failed.
>
> Thanks,
> Chris
>
>
> On 2013-03-14 18:18, Chris Hecker wrote:
>>
>> Hrm, these didn't fix the assert...guess I'm going to have to debug
>> it...will report back.
>>
>> Chris
>>
>>
>> On 2013-03-04 08:35, Greg Hudson wrote:
>>> On 03/04/2013 02:49 AM, Chris Hecker wrote:
>>>> Maybe the assert problem is known and fixed too?  A guy can dream.
>>>
>>> The other fixes you want to look at are:
>>>
>>> https://github.com/krb5/krb5/commit/d47cb3023828da211cd342f6d94d56c97d102227
>>>
>>>
>>> https://github.com/krb5/krb5/commit/279a040bf3bf98a81502410dd71ccdc630683233
>>>
>>>
>>> https://github.com/krb5/krb5/commit/2b06a22f7fd8ec01fb27a7335125290b8ceb6f18
>>>
>>>
>>>
>>> The second of those might account for the assertion failure you're
>>> seeing.
>>>
>>>