Opened 9 years ago
Closed 5 years ago
#707 closed defect (wontfix)
b10-resolver (as forwarder) exit with SEGV
Reported by: | jreed | Owned by: | |
---|---|---|---|
Priority: | medium | Milestone: | DNS Outstanding Tasks |
Component: | Unclassified | Version: | |
Keywords: | Cc: | ||
CVSS Scoring: | Parent Tickets: | ||
Sensitive: | no | Defect Severity: | N/A |
Sub-Project: | DNS | Feature Depending on Ticket: | |
Estimated Difficulty: | 0.0 | Add Hours to Ticket: | 0 |
Total Hours: | 0 | Internal?: | no |
Description
Not sure what caused this b10-resolver to exit with SEGV.
I am confused why question generates different upstream questions and one question results in multiple responses. Is this an error too?
Here is the closest lines in verbose output:
[b10-resolver] Got a DNS message [b10-resolver] received a message: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21919 ;; flags: rd ; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;external.ak.fbcdn.net. IN A [b10-resolver] Processing normal query [b10-resolver] Try out cache first (started by incoming event) [b10-resolver] Message not found in cache, starting recursive query [b10-resolver] doLookup: try cache [b10-resolver] Sending upstream query (external.ak.fbcdn.net. IN A ) to 127.0.0.1 [b10-resolver] Timeout, resending query [b10-resolver] Sending upstream query (profile.ak.fbcdn.net. IN A ) to 127.0.0.1 [b10-resolver] Timeout, resending query [b10-resolver] Sending upstream query (photos-e.ak.fbcdn.net. IN A ) to 127.0.0.1 [b10-resolver] Timeout, resending query [b10-resolver] Sending upstream query (external.ak.fbcdn.net. IN A ) to 127.0.0.1 [b10-resolver] sending a response (442bytes): ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3781 ;; flags: qr rd ra ; QUESTION: 1, ANSWER: 11, AUTHORITY: 9, ADDITIONAL: 0 ;; QUESTION SECTION: ;photos-e.ak.fbcdn.net. IN A ;; ANSWER SECTION: photos-e.ak.fbcdn.net. 895 IN CNAME photos-a.ak.facebook.com.edgesuite.net. photos-a.ak.facebook.com.edgesuite.net. 4798 IN CNAME a995.mm1.akamai.net. a995.mm1.akamai.net. 20 IN A 69.31.72.194 a995.mm1.akamai.net. 20 IN A 69.31.72.139 a995.mm1.akamai.net. 20 IN A 69.31.72.145 a995.mm1.akamai.net. 20 IN A 69.31.72.147 a995.mm1.akamai.net. 20 IN A 69.31.72.169 a995.mm1.akamai.net. 20 IN A 69.31.72.176 a995.mm1.akamai.net. 20 IN A 69.31.72.178 a995.mm1.akamai.net. 20 IN A 69.31.72.184 a995.mm1.akamai.net. 20 IN A 69.31.72.193 ;; AUTHORITY SECTION: mm1.akamai.net. 1798 IN NS n7mm1.akamai.net. mm1.akamai.net. 1798 IN NS n4mm1.akamai.net. mm1.akamai.net. 1798 IN NS n3mm1.akamai.net. mm1.akamai.net. 1798 IN NS n2mm1.akamai.net. mm1.akamai.net. 1798 IN NS n5mm1.akamai.net. mm1.akamai.net. 1798 IN NS n0mm1.akamai.net. mm1.akamai.net. 1798 IN NS n6mm1.akamai.net. mm1.akamai.net. 1798 IN NS a0mm1.akamai.net. mm1.akamai.net. 1798 IN NS n1mm1.akamai.net. [b10-resolver] Timeout, resending query [b10-resolver] Sending upstream query (profile.ak.fbcdn.net. IN A ) to 127.0.0.1 [b10-resolver] sending a response (308bytes): ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21919 ;; flags: qr rd ra ; QUESTION: 1, ANSWER: 4, AUTHORITY: 9, ADDITIONAL: 0 ;; QUESTION SECTION: ;external.ak.fbcdn.net. IN A ;; ANSWER SECTION: external.ak.fbcdn.net. 2472 IN CNAME external.ak.fbcdn.net.edgesuite.net. external.ak.fbcdn.net.edgesuite.net. 4798 IN CNAME a1920.g.akamai.net. a1920.g.akamai.net. 20 IN A 63.80.138.48 a1920.g.akamai.net. 20 IN A 63.80.138.67 ;; AUTHORITY SECTION: g.akamai.net. 1799 IN NS n4g.akamai.net. g.akamai.net. 1799 IN NS n7g.akamai.net. g.akamai.net. 1799 IN NS n6g.akamai.net. g.akamai.net. 1799 IN NS a0g.akamai.net. g.akamai.net. 1799 IN NS n5g.akamai.net. g.akamai.net. 1799 IN NS n3g.akamai.net. g.akamai.net. 1799 IN NS n0g.akamai.net. g.akamai.net. 1799 IN NS n1g.akamai.net. g.akamai.net. 1799 IN NS n2g.akamai.net. [b10-resolver] sending a response (38bytes): ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 24087 ;; flags: qr rd ra ; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;profile.ak.fbcdn.net. IN A [bind10] Process b10-resolver (PID 16152) terminated, exit status = 139
Subtickets
Change History (5)
comment:1 Changed 9 years ago by jreed
comment:2 Changed 9 years ago by jreed
Maybe this issue is already fixed. I don't know. I now see the verbose out put changed to also say "Asked to resolve:".
comment:3 Changed 8 years ago by jreed
- Defect Severity set to N/A
- Sub-Project set to DNS
- Summary changed from b10-resolver failure to b10-resolver (as forwarder) exit with SEGV
comment:4 Changed 6 years ago by stephen
- Milestone set to DNS Outstanding Tasks
comment:5 Changed 5 years ago by tomek
- Resolution set to wontfix
- Status changed from new to closed
DNS and BIND10 framework is outside of scope for Kea project.
The corresponding code has been removed from Kea git repository.
If you want to follow up on DNS or former BIND10 issues, see
http://bundy-dns.de project.
Closing ticket.
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Note this is a forwarder. It should not be doing upstream queries asking for the addresses for the nameservers.