[systemd-devel] systemctl hangs with 249.7 systemd in yocto Honister release

[Heyi Guo]

On 2023/1/4 下午8:59, Michal Koutný wrote:
> On Wed, Jan 04, 2023 at 07:13:59PM +0800, Heyi Guo <guoheyi at linux.alibaba.com> 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.

The core shows something like this:

(gdb) bt
#0  0x00485848 in prioq_peek_by_index (idx=0, q=0x80808080) at 
../git/src/basic/prioq.c:272
#1  prioq_peek (q=0x80808080) at ../git/src/basic/prioq.h:25
#2  process_timer (n=<optimized out>, d=d at entry=0x6f6600, e=<optimized 
out>) at ../git/src/libsystemd/sd-event/sd-event.c:3181
#3  0x00486594 in process_timer (d=0x6f6600, n=<optimized out>, 
e=0x6f65c8) at ../git/src/libsystemd/sd-event/sd-event.c:4124
#4  sd_event_wait (e=e at entry=0x6f65c8, timeout=<optimized out>) at 
../git/src/libsystemd/sd-event/sd-event.c:4124
#5  0x00486bb0 in sd_event_run (timeout=18446744073709551615, 
e=0x6f65c8) at ../git/src/systemd/sd-event.h:172
#6  sd_event_loop (e=0x6f65c8) at 
../git/src/libsystemd/sd-event/sd-event.c:4264
#7  0x0040c59c in main_loop (manager=0x0) at ../git/src/udev/udevd.c:1872
#8  run_udevd (argv=<optimized out>, argc=<optimized out>) at 
../git/src/udev/udevd.c:1984
#9  run (argv=<optimized out>, argc=<optimized out>) at 
../git/src/udev/udevadm.c:116
#10 main (argc=<optimized out>, argv=<optimized out>) at 
../git/src/udev/udevadm.c:133

Thanks,

Heyi


>
> Michal