How to debug libvulkan_lvp.so seg fault

[mickel8]

Hi,
when running wgpu on our CI machine where we only have CPU without GPU neither integrated nor dedicated, we sometimes get seg fault in libvulkan_lvp.so.

(gdb) bt full
#0  0x00007f5ab55177b0 in  () at /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so
#1  0x00007f5ab551ada2 in  () at /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so
#2  0x00007f5ab550b4db in  () at /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so
#3  0x00007f5ab550b3db in  () at /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so
#4  0x00007f5c66223609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf =
              {cancel_jmp_buf = {{jmp_buf = {140022426621696, -5440817730036991720, 140033663410942, 140033663410943, 140033663410944, 140022426619840, 5390053279809894680, 5388162631089355032}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5  0x00007f5c65df0133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb)

I wonder how I could debug this further?
Is it possible to get the exact line number in libvulkan_lvp.so where the seg fault happens?

Kernel and glibc versions

root@7ed44f4007a3:~/app# uname -r
5.15.0-1030-aws
root@7ed44f4007a3:~/app# ldd -version
ldd: unrecognized option `-version'
Try `ldd --help' for more information.

root@7ed44f4007a3:~/app# ldd --version
ldd (Ubuntu GLIBC 2.31-0ubuntu9.9) 2.31
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.