Bind crashed again, this time the log is much different.
Jan 28 22:04:44 dc-dns-02 named[647]: network unreachable resolving
'q-seeqcview.com/A/IN': 2600:9000:5302:fc00::1#53
Jan 28 22:04:47 dc-dns-02 named[647]: tcp.c:855:
REQUIRE((__builtin_expect(!!((sock) != ((void *)0)), 1) &&
__builtin_expect(!!(((const isc__magic_t *)(sock))->magic == ((('N') << 24 |
('M') << 16 | ('S') << 8 | ('K')))), 1))) failed, back trace
Jan 28 22:04:47 dc-dns-02 named[647]: #0 0x55a892a78e43 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #1 0x7f07eb0f4ac0 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #2 0x7f07eb11131a in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #3 0x7f07eb3d9707 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #4 0x7f07eb3dafe9 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #5 0x7f07eb3e99b0 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #6 0x7f07eb3f19a7 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #7 0x7f07eb3f8de6 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #8 0x7f07eb3f4936 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #9 0x7f07eb3f6a3e in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #10 0x7f07eb3f7048 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #11 0x7f07eb3f1a24 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #12 0x7f07eb3f4e96 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #13 0x7f07eb3fa4c6 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #14 0x7f07eb11c161 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #15 0x7f07eabe4609 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: #16 0x7f07eab05293 in ??
Jan 28 22:04:47 dc-dns-02 named[647]: exiting (due to assertion failure)
Jan 28 22:04:58 dc-dns-02 systemd[1]: named.service: Main process exited,
code=killed, status=6/ABRT
Jan 28 22:04:58 dc-dns-02 systemd[1]: named.service: Failed with result
'signal'.
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https://bugs.launchpad.net/bugs/1954854
Title:
bind 9.16.1-ubuntu on ubuntu 20.04 randomly exits with segfault signal
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