On Wed, Jan 04, 2023 at 07:13:59PM +0800, Heyi Guo <guoheyi@xxxxxxxxxxxxxxxxx> wrote: > Jan 04 16:10:57 ali2600 systemd[1]: Caught <SEGV>, dumped core as pid 7516. > Jan 04 16:10:57 ali2600 systemd[1]: Freezing execution. > Jan 04 16:10:57 ali2600 phosphor-dump-manager[7536]: Failed to list units: > Transport endpoint is not connected > > Is it the reason for systemctl fails to work? For the log says "systemd > freezing execution". Yes, see the line above, there's SIGSEGV in PID 1. (Given the other SIGSEGVs, it looks like a common cause across different processes, e.g. screwed libc update or similar.) Also, based on the same line, you may be able to extract the coredump from /var/lib/systemd/coredump (depends on coredump.conf:Storage=) and figure out more. Michal
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