-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 An interesting observation: my IPv6 connectivity is via a sixXS tunnel.
Resolving isc.org through dnsmasq w/DNSSEC to google's IPv6 DNS servers times out, because dnsmasq was never getting a reply to a query for the DNSKEY RRset for org. This reply (when signed) is 1600-or-so bytes. running dnsmasq with --edns-packet-max=1280 makes it work. The tunnel MTU is 1280 Simon. On 09/01/15 08:52, Dave Taht wrote: > I was able to lock up this version of dnsmasq twice: 100% cpu > usage. No syscalls were visible from strace during the lockup. > Lockups occurred once on nearly at boot, and the second time, after > a few hours of casual usage, with only ipv6 upstreams, on > cero-3.10.50-1. > > furthermore, the only thing that kills it is a kill -9. I will > build a non-stripped version in the morning... (and I do note that > I was testing two things - one ipv6 upstreams only, and two, > dnssec. Prior to this version I was using both ipv4 and ipv6 > upstreams, no issues, had dnssec on also, usually no issues) > > Other suggestions for debugging the causes of a lockup requested > (log all queries?) > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJUsAapAAoJEBXN2mrhkTWi6BMP/jXXRw3lQ9vuX28lut4VUsz8 yuVhPB8nQYpewXAT3LRxd33C7mVI6hQfbxcA192Mh7/4N66yAp91a3jeRZTe5pW6 nUS+GDGfXQXNZoVFbeQZrUQEyJ7QF1tj1TqXncp9lbYPGUFWrlruM3r0kDfHEYIb hHZ7oO/LWg6sYTg5JkidbogL7QwFG97cZ5+6I4++rFTe+rrtfgKRIMSDP4kY+azU vqzTOzQfwM69TfCPFjm/iJ8AStH8Y99lhORMyK/0F7kSODI0c3fPkcYLDaqslq/S 0GnhWIscAle0FoKG1CUErrUXESN1Q9dn4SKqrzeoRB4494n8tP0QykvmlgkcR/fx orAxbvshTpWZaNzo0D6fjd9Pk81fFH2jTB6hFz3O1e67+2DOK5wqrOm4+vLU2Kke gPthCsGDD5s6CcYs93gUfufzjZAllNvCgouvUZJMDWK2YQoMRLTHyGozz/wNeUV5 qI0aZTrXXluUQNaWxs326C4Ej02UXztE4rrPXb1YRiPzyFC0TZSNdco0tv0l/yru oZQ1s6VFvqrqy7aNHeh/TyjFDEC2OqRVIXvuNOe1SECgjActLTOzxaOhOqfvqgjc 10Py3aZz8Tm40pixW4Q7LCm++QOB770NwzhLMjQ4jvvCEo5ua5dNsMA7whVX6Spf pVw5V1h6KX4QDNbfZmeC =HAlX -----END PGP SIGNATURE----- _______________________________________________ Cerowrt-devel mailing list [email protected] https://lists.bufferbloat.net/listinfo/cerowrt-devel
