gdb 12.1 on a qemu 6.2 core

localhost:/mnt # gdb /usr/bin/qemu-system-x86_64  qemu.core
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Reading symbols from /usr/bin/qemu-system-x86_64...
Reading symbols from /usr/lib/debug/usr/bin/qemu-system-x86_64-6.2.0-150400.37.20.1.x86_64.debug...

warning: Can't open file anon_inode:kvm-vcpu:3 which was expanded to anon_inode:kvm-vcpu:3 during file-backed mapping note processing

warning: Can't open file anon_inode:kvm-vcpu:2 which was expanded to anon_inode:kvm-vcpu:2 during file-backed mapping note processing

warning: Can't open file anon_inode:kvm-vcpu:1 which was expanded to anon_inode:kvm-vcpu:1 during file-backed mapping note processing

warning: Can't open file anon_inode:kvm-vcpu:0 which was expanded to anon_inode:kvm-vcpu:0 during file-backed mapping note processing

warning: Can't open file /dev/zero (deleted) during file-backed mapping note processing

warning: Can't open file /usr/lib64/libibverbs.so.1.14.38.1 during file-backed mapping note processing

warning: Can't open file /usr/lib64/librdmacm.so.1.3.38.1 during file-backed mapping note processing

warning: Can't open file /[aio] (deleted) during file-backed mapping note processing

warning: core file may not match specified executable file.
[New LWP 18222]
[New LWP 18226]
[New LWP 18232]
[New LWP 18233]
[New LWP 18234]
[New LWP 18235]
[New LWP 18237]
Unable to read JIT descriptor from remote memory
Core was generated by `qemu-system-x86_64'.
#0  0x00007f0db956a463 in ?? ()
[Current thread is 1 (LWP 18222)]
(gdb) bt
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x0000000000000029 in ?? ()
#3  0x000055eedf8228b8 in ?? ()
#4  0x000055eedd214a39 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0x0000000000000040 in ?? ()
#7  0x0000000000000002 in ?? ()
#8  0x0000000000000030 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x000055eedf816720 in ?? ()
#11 0x000055eedf8228b8 in ?? ()
#12 0x0000000000000001 in ?? ()
#13 0x00007ffca1a0a204 in ?? ()
#14 0x0000000000000000 in ?? ()
(gdb) thread apply all bt

Thread 7 (LWP 18237):
#0  0x00007f0db956670c in ?? ()
#1  0x0008b00000000000 in ?? ()
#2  0x0000000000002d42 in ?? ()
#3  0x00007f0ba6dae200 in ?? ()
#4  0x0000000000000000 in ?? ()

Thread 6 (LWP 18235):
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x00007f0db42a59a0 in ?? ()
#3  0x000055eedd742a00 in ?? ()
#4  0x000055eedd297810 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0x00007f0dacffa538 in ?? ()
#7  0x000055eedcf0390a in ?? ()
#8  0xd3ab483800000000 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x00007f0db42729ce in ?? ()
#11 0x00007f0db4772028 in ?? ()
#12 0x00000000fe0a4000 in ?? ()
#13 0x0000000000000000 in ?? ()

Thread 5 (LWP 18234):
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x000055eedf2f9c80 in ?? ()
#3  0x000055eedd742a00 in ?? ()
#4  0x000055eedd297810 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0x00007f0dad7fb538 in ?? ()
#7  0x000055eedcf0390a in ?? ()
#8  0xd3ab483800000000 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x00007f0db42729ce in ?? ()
#11 0x00007f0db4775028 in ?? ()
#12 0x00000000fe0a0008 in ?? ()
#13 0x0000000000000000 in ?? ()

Thread 4 (LWP 18233):
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x00007f0dadffc538 in ?? ()
#3  0x000055eedd742a00 in ?? ()
#4  0x000055eedd297810 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0xffffffffffffffff in ?? ()
#7  0x9330b80c71837f00 in ?? ()
#8  0x000055eede0fbcd0 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x00007f0db42729ce in ?? ()
--Type <RET> for more, q to quit, c to continue without paging--
#11 0x00007f0db4778028 in ?? ()
#12 0x00000000fe0a3818 in ?? ()
#13 0x0000000000000000 in ?? ()

Thread 3 (LWP 18232):
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x00007f0db4f7e538 in ?? ()
#3  0x000055eedd742a00 in ?? ()
#4  0x000055eedd297810 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0xffffffffffffffff in ?? ()
#7  0x9330b80c71837f00 in ?? ()
#8  0x000055eede0fbcd0 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x00007f0db44319ae in ?? ()
#11 0x00007f0db477b028 in ?? ()
#12 0x00000000fe640040 in ?? ()
#13 0x0000000000000000 in ?? ()

Thread 2 (LWP 18226):
#0  0x00007f0db9470d89 in ?? ()
#1  0x000055eedd1ed2eb in ?? ()
#2  0x0000000000000000 in ?? ()

Thread 1 (LWP 18222):
#0  0x00007f0db956a463 in ?? ()
#1  0x00007f0db95621d1 in ?? ()
#2  0x0000000000000029 in ?? ()
#3  0x000055eedf8228b8 in ?? ()
#4  0x000055eedd214a39 in ?? ()
#5  0x000055eedd1fb383 in ?? ()
#6  0x0000000000000040 in ?? ()
#7  0x0000000000000002 in ?? ()
#8  0x0000000000000030 in ?? ()
#9  0x9330b80c71837f00 in ?? ()
#10 0x000055eedf816720 in ?? ()
#11 0x000055eedf8228b8 in ?? ()
#12 0x0000000000000001 in ?? ()
#13 0x00007ffca1a0a204 in ?? ()
#14 0x0000000000000000 in ?? ()
(gdb)