Strange Segfault

[Resicow]

Hello,

I am receiving a strange segault in dmesg every few hours... and then 
nginx orphans those connections, so after about a day there are 
2000-3000 connections that are just "waiting".

This isn't that bad, as the server has received over 1,228,503 
connections since a restart this morning, but still those orphaned 
connections pile up, and I have to restart nginx to clear them.

Here is what I am receiving:

nginx[27715]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27679]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27690]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27727]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27728]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27677]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27706]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27680]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[5214]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 error 
4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27686]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27688]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27678]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27717]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27682]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27726]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27724]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
__ratelimit: 34 callbacks suppressed
nginx[27720]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[22566]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27685]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[22587]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27722]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27696]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27691]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27701]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[23722]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[22562]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[27719]: segfault at c ip 00000030d106c942 sp 00007fffcd340728 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[22578]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]
nginx[22560]: segfault at c ip 00000030d106c942 sp 00007fffcd340798 
error 4 in libkrb5.so.3.3[30d1000000+9f000]

I know that libkrb5 is for kerberos... I don't think I am even using 
that in my configuration. No DAV support, etc... So I don't understand 
exactly why nginx is faulting.

Please let me know what additional information I can send that would be 
helpful.

Thanks,

John