Am 05.12.25 um 20:30 schrieb Mark Hindley:
On Fri, Dec 05, 2025 at 08:10:13PM +0100, Michael Biebl wrote:What this has to do with systemd escapses me. Please elaborate.I don't think it has anything *directly* to do with systemd. It is merely that the common feature of all the similar reports I have seen is rsyslog having been built with --disable-libsystemd (i.e not the Debian default.) It appears to me that building in this way triggers a buggy interaction with libfastjson producing # /usr/sbin/rsyslogd -n -iNONE /usr/sbin/rsyslogd: Relink `/usr/lib/x86_64-linux-gnu/libfastjson.so.4' with `/usr/lib/x86_64-linux-gnu/libm.so.6' for IFUNC symbol `modf' Segmentation fault If this error message is taken on face value it suggests libfastjson should have an explicit linker reference to libm. It certainly doesn't appear to: $ ldd /usr/lib/x86_64-linux-gnu/libfastjson.so linux-vdso.so.1 (0x00007faac9759000) libc.so.6 => /usr/lib/x86_64-linux-gnu/libc.so.6 (0x00007faac9400000) /lib64/ld-linux-x86-64.so.2 (0x00007faac975b000) I have been trying to create a minimal reproducer, with no success so far. Do you have any further ideas?
No, so why do you frame it as a systemd issue?
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