Bug#996807: tinydns stops replying to queries after a few hours
Emil, I ran into this problem with an old self-maintained dbndjb 1.05-9 package's tinydns, but mine hung after just one or two queries after a recent upgrade (including libc6 2.32-4) and reboot. My ./run file was: exec envuidgid tinydns envdir ./env softlimit -d30 /usr/bin/tinydns I tried running manually with strace interspersed, but that refused to start until I dropped the softlimit -d30 (data segment size), and then it ran fine. That got me to thinking that the problem is running out of memory. So I bumped up -d30 to -d35 in ./run and tinydns runs quite well now. The tinydns 1.05-13 package uses chpst (from runit) instead of softlimit (from daemontools), but I think the intent is the same. I conjecture that something in libc6 2.32 increased the size of the data segment. The work around/fix is to increase the data segment limit in tinydns package's ./run file. Ideally, tinydns should detect the problem and complain. That would have saved a lot of frustration.
Bug#996807: tinydns stops replying to queries after a few hours
Package: tinydns Version: 1:1.05-13 Severity: grave Justification: renders package unusable -- System Information: Debian Release: bookworm/sid APT prefers testing APT policy: (700, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.16.0-1-amd64 (SMP w/2 CPU threads) Kernel taint flags: TAINT_WARN Locale: LANG=C.UTF-8, LC_CTYPE=ro_RO (charmap=ISO-8859-2), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages tinydns depends on: ii init-system-helpers 1.60 ii libc62.31-17 ii runit-helper 2.10.3 ii sysuser-helper 1.3.5.1 Versions of packages tinydns recommends: pn daemon pn runit tinydns suggests no packages. -- no debconf information None of the tinydns files have been changed when this bug started manifesting (nor the ELF or its data files). In fact it was an update of libc which caused this. Any version of libc6 2.32-* will cause tinydns to ignore queries after a while. dnscache runing on the same machine is not affected. tinydns doesn't crash and there is nothing unusual in its logfiles. If I kill the tinydns daemon then supervise will spawn another version and it starts working again for a while then stops replying to queries. Rolling back libc6 to version 2.31-17 makes tinydns working again.
