Since IWD 1.23.1 IWD Segfaults on system resume. IWD 1.24.1 did not resolve issue.


b@ab-arch ~]$ sudo coredumpctl gdb 467
PID: 467 (iwd)
UID: 0 (root)
GID: 0 (root)
Signal: 11 (SEGV)
Timestamp: Sat 2022-02-05 21:15:32 EST (10min ago)
Command Line: /usr/lib/iwd/iwd
Executable: /usr/lib/iwd/iwd
Control Group: /system.slice/iwd.service
Unit: iwd.service
Slice: system.slice
Boot ID: c94bdd9365504e5e9628a20dd14eaf63
Machine ID: d92798486f32469480af53dd5ee2b928
Hostname: ab-arch
Storage: /var/lib/systemd/coredump/core.iwd.0.c94bdd9365504e5e9628a20dd14eaf63.467.1644113732000000.zst (present)
Disk Size: 45.1K
Message: Process 467 (iwd) of user 0 dumped core.

Module linux-vdso.so.1 with build-id bd401e5bd0d642686e3a27e85c9cfb15e287f348
Module ld-linux-x86-64.so.2 with build-id 040cc3dd10461562f177df39e3be2f3704258c3c
Module libc.so.6 with build-id 4b406737057708c0e4c642345a703c47a61c73dc
Module libgcc_s.so.1 with build-id 7f8508bb914546ada778809b64b99d234337d835
Module libell.so.0 with build-id 964169963666de7b2e9dcda90fedc2d3cac8468e
Module iwd with build-id 34c1d21bea688ec5a2460841a54f592a09e129e0
Stack trace of thread 467:
#0 0x00007f460dde53a3 l_queue_pop_head (libell.so.0 + 0x113a3)
#1 0x000056341a3377e9 n/a (iwd + 0x387e9)
#2 0x00007f460ddee244 n/a (libell.so.0 + 0x1a244)
#3 0x00007f460ddea741 n/a (libell.so.0 + 0x16741)
#4 0x00007f460dde986d l_main_iterate (libell.so.0 + 0x1586d)
#5 0x00007f460dde993e l_main_run (libell.so.0 + 0x1593e)
#6 0x00007f460dde9b84 l_main_run_with_signal (libell.so.0 + 0x15b84)
#7 0x000056341a312aba n/a (iwd + 0x13aba)
#8 0x00007f460dc14b25 __libc_start_main (libc.so.6 + 0x27b25)
#9 0x000056341a31339e n/a (iwd + 0x1439e)
ELF object binary architecture: AMD x86-64

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Reading symbols from /usr/lib/iwd/iwd...
(No debugging symbols found in /usr/lib/iwd/iwd)
[New LWP 467]
Core was generated by `/usr/lib/iwd/iwd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f460dde53a3 in l_queue_pop_head () from /usr/lib/libell.so.0



Steps to reproduce:

After reboot all looks to be ok. Put system in suspend mode or start and stop IWD servcie causing it to segfault. This pretty much brings the system to its knees and only resolution is a hard reboot. Reverting to 1.21.1 IWD resolves this issue.