nis + dnslookup => glibc crash

[Charlie Brej]

Jon Ciesla wrote:
>> I haven't dug very deep but I am getting crashes in all applications that
>> do dns
>> lookups while ypbind is running. The backtraces point the crash somewhere
>> in glibc.
>> This happens when hosts in nsswitch is set to look at nis before looking
>> up dns
>> "hosts:      files nis dns".
>>
>> If I reorder the line to look up dns before nis them it works fine as nis
>> is
>> never accessed. Also shutting down ypbind also makes the crashes stop.
>>
>> I can get more info tomorrow morning (GMT). (Unfortunately I can't log
>> into that
>> machine from home now as I screwed something up)
> 
> Is your machine that's running ypserv set to provide host information?

That is an interesting point which I can answer tomorrow. All I know is the nis 
hosts are some very old sun servers. But even if it didn't then it should just 
drop though to dns and certainly not cause a crash in a user level app. It 
wasn't an issue in previous versions.

Btw the apps which crashed were yum, pidgin, firefox and thunderbird. I can try 
some more out but I think it is pretty generic.