Please try master/latest: https://gerrit.fd.io/r/c/vpp/+/21468 fixed a source
of trivial spin-lock bugs.
HTH... Dave
From: Dave Barach (dbarach)
Sent: Thursday, August 22, 2019 12:11 PM
To: Carlito Nueno
Cc: vpp-dev@lists.fd.io
Subject: RE: [vpp-dev] Crash when using dns_name_server
NP, sorry
19 10:55 AM
> *To:* Dave Barach (dbarach)
> *Cc:* vpp-dev@lists.fd.io
> *Subject:* Re: [vpp-dev] Crash when using dns_name_server
>
>
>
> Thanks Dave! Let me know if you need me do more tests or gather more info.
>
>
>
> On Thu, Aug 22, 2019 at 4:48 AM Dave Bar
Nueno
Sent: Thursday, August 22, 2019 10:55 AM
To: Dave Barach (dbarach)
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Thanks Dave! Let me know if you need me do more tests or gather more info.
On Thu, Aug 22, 2019 at 4:48 AM Dave Barach (dbarach)
mailto:dbar
ito Nueno
> *Sent:* Wednesday, August 21, 2019 10:03 PM
> *To:* Dave Barach (dbarach)
> *Cc:* vpp-dev@lists.fd.io
> *Subject:* Re: [vpp-dev] Crash when using dns_name_server
>
>
>
> Hi Dave,
>
> Sorry about the late reply.
>
> I used below configs to eliminate mo
Ack. The DNS server has had zero multi-core testing, aside from what you’ve
done. I’ll look at it when I can.
From: Carlito Nueno
Sent: Wednesday, August 21, 2019 10:03 PM
To: Dave Barach (dbarach)
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Hi Dave,
Sorry
Hi Dave,
Sorry about the late reply.
I used below configs to eliminate most of the complexity. I did not see
binary-api being truncated.
Steps:
1. I used basic vpp.conf (see below) without the dns_name_server commands
2. gdb run -c /etc/vpp/startup.conf (see below)
3. sudo vppctl
4. Entered
I am trying to use DNS server and on "ping google.com" VPP is crashing
Color me unsurprised. Please fix your configuration, to the point where
first-order obvious errors have been eliminated. It looks to me like the
"binary-api dns_name_server_add_del 8.8.8.8" command has been truncated:
Aug
bly work.
D.
From: vpp-dev@lists.fd.io On Behalf Of Dave Barach via
Lists.Fd.Io
Sent: Thursday, August 15, 2019 2:54 PM
To: anoopnairh...@gmail.com; vpp-dev@lists.fd.io
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Folks,
I’ll look at these iss
won’t get fixed...
>
>
>
> To level-set: the DNS name resolver has been lightly used. Nothing would
> surprise me at this point.
>
>
>
> D.
>
>
>
> From: vpp-dev@lists.fd.io On Behalf Of
> anoopnairh...@gmail.com
> Sent: Thursday, August 15, 2019 1
.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Folks,
I’ll look at these issues. It would be helpful if people would contribute
patches, or at least write Jira tickets. If we don’t know it’s broken, it won’t
get fixed...
To level-set: the DNS name resolver has been lightly used. Noth
@lists.fd.io On Behalf Of
anoopnairh...@gmail.com
Sent: Thursday, August 15, 2019 1:07 PM
To: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Hi Carlio,
I had faced a similar crash with DNS module while resolving names.
The dns_cache_lock is in locked state after
Hi Carlio,
I had faced a similar crash with DNS module while resolving names.
The dns_cache_lock is in locked state after initialization. Because of this the
first worker thread which attempts to take this lock will find it in "locked"
state and spin forever. So the main thread panics when it
gt; To: Carlito Nueno
> Cc: vpp-dev@lists.fd.io
> Subject: Re: [vpp-dev] Crash when using dns_name_server
>
> Did a packet trace and I noticed two things:
>
> dns4-request: DNS pkts pending upstream name resolution
> nat44-out2in: no translation
>
>
> Packet 8
>
>
-
From: vpp-dev@lists.fd.io On Behalf Of carlito nueno
Sent: Wednesday, August 14, 2019 11:46 PM
To: Carlito Nueno
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Crash when using dns_name_server
Did a packet trace and I noticed two things:
dns4-request: DNS pkts pending upstream name resolution
Did a packet trace and I noticed two things:
dns4-request: DNS pkts pending upstream name resolution
nat44-out2in: no translation
Packet 8
00:28:11:659028: dpdk-input
lan1 rx queue 0
buffer 0x8aeef: current data 0, length 89, buffer-pool 0, ref-count
1, totlen-nifb 0, trace 0x5
VPP is not crashing anymore. I didn't change anything.
VPP is caching DNS queries
[P] DNS query: id 18
no-recur recur-des no-trunc non-auth
2 queries, 0 answers, 0 name-servers, 0 add'l recs
Queries:
Name: www.apple.com: type A
Name: www.apple.com: type
But LAN device is not
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