Description of problem: Since a few weeks, avahi-daemon logs a lot of warnings: "server.c: Packet too short or invalid while reading known answer record. (Maybe a UTF-8 problem?)" Version-Release number of selected component (if applicable): 0.6.31 How reproducible: Watch the log -- but the problems is shown when then are certain other devices around that (apparently) use bonjour/zeroconf in a way that avahi does not like. Have not seen any adverse effects other than the log so far though. Steps to Reproduce: 1. watch the log Actual results: Lots of warnings. Expected results: No warnings. Additional info: I added the following to avahi-core/server.c: if (!(record = avahi_dns_packet_consume_record(p, &unique))) { unsigned u; avahi_log_warn(__FILE__": Packet too short (%u) or invalid while reading known answer record. (Maybe a UTF-8 problem?)", (unsigned)p->size); for (u = 0; u != p->size; ++u) { char kar; kar = (char)AVAHI_DNS_PACKET_DATA(p)[u]; avahi_log_warn ("[%02x] (%c)", kar, isprint(kar) ? kar : '.'); } goto fail; } Now, I can see in my log: Jul 28 12:49:41 wintersun avahi-daemon[32482]: server.c: Packet too short (53) or invalid while reading known answer record. (Maybe a UTF-8 problem?) Jul 28 12:49:41 wintersun avahi-daemon[32482]: server.c: Packet too short (53) or invalid while reading known answer record. (Maybe a UTF-8 problem?) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [01] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [01] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [0b] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [5f] (_) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [67] (g) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6f] (o) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6f] (o) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [67] (g) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6c] (l) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [65] (e) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [63] (c) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [61] (a) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [73] (s) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [74] (t) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [04] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [5f] (_) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [74] (t) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [63] (c) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [70] (p) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [05] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6c] (l) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6f] (o) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [63] (c) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [61] (a) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6c] (l) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [0c] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [00] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [01] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [1b] (.) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [41] (A) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [64] (d) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [72] (r) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [69] (i) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [61] (a) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [6e] (n) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [20] ( ) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [43] (C) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [61] (a) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [73] (s) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [74] (t) Jul 28 12:49:41 wintersun avahi-daemon[32482]: [69] (i) Some, apparently something _googlecast._tcp; and note that the name at the end has its last 6 characters chopped off. Interestingly, it seems wireshark also sees at least some of these packets as 'malformed'.
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