Control: tags -1 + upstream Am 23.03.21 um 15:05 schrieb Marc Lehmann:
we were just debugging an issue where systemd-networkd did not restart on some systems, with the following error: Mar 23 13:29:50 cert systemd[1]: Starting Network Service... Mar 23 13:29:50 cert systemd[564743]: systemd-networkd.service: Failed to set up mount namespacing: /run/systemd/unit-r... Mar 23 13:29:50 cert systemd[564743]: systemd-networkd.service: Failed at step NAMESPACE spawning /lib/systemd/systemd-... Mar 23 13:29:50 cert systemd[1]: systemd-networkd.service: Main process exited, code=exited, status=226/NAMESPACE Mar 23 13:29:50 cert systemd[1]: systemd-networkd.service: Failed with result 'exit-code'. Mar 23 13:29:50 cert systemd[1]: Failed to start Network Service. As it turns out, this is due to an extremely fragile setup of networkd - essentially, it requires working network connectivity to be restartable. In our case, the issue above (which, btw., we could only diagnose by strace'ing systemd as systemd gives absolutely no useful error message for this) was a shared network filesystem mounted as /shared. And since we had a network problem (that restarting networkd with a better config was supposed to fix), at some point accesses to /shared caused it to fail with ENOTCONN. This in turn caused sysstemd to not be able to set up the private fs namespace, eventually causing the failure: [pid 564996] statx(4, "shared", AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW|AT_NO_AUTOMOUNT, 0, 0x7ffdadcf3d30) = -1 ENOTCONN (Transport endpoint is not connected)
Please consider raising this upstream at https://github.com/systemd/systemd It's very likely that upstream has some follow up questions.I would suggest to include your strace in that upstream bug report and also attach your /etc/fstab.
Thanks
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