Problem running helloworld-c x64-kvm on QEMU v8.2.2

[RaduMantu]

Describe the bug

A x86_64-qemu build of helloworld-c crashes early on; see attached log (last 2 lines repeating). Also added the related symbols file.

@razvand mentioned that someone else also had this problem on newer versions of qemu. If anyone wants to do a bisect and find the culprit, I've already checked a few versions starting with v8.0.0. Configure flags taken from the PKGBUILD file, plus --target-list=x86_64-softmmu. Note that you may need to cherry pick commit 497fad3897 to solve a missing file error on older versions; I gave up when more errors started cropping up in v7.x.

Steps to reproduce

Anything built for x64 KVM guest, with or without CONFIG_PAGING. ARMv8 or x64 linuxu both work fine.

Tested on Archlinux -- qemu-system-x86_64 version 8.2.2. Invocation:

$ qemu-system-x86_64                                     \
        -enable-kvm                                      \
        -kernel ${APP_DIR}/build/hello_world_qemu-x86_64 \
        -cpu qemu64,pdpe1gb                              \
        -nographic                                       \
        -smp 1                                           \
        -m 2G

Error occurs both on a manual build make A=${APP_DIR} ... and for kraft build / run ....

Expected behavior

The unikernel to boot and print "hello world".

Which architectures were you using or does this bug affect?

x86_64

Which platforms were you using or does this bug affect?

kvm

Relevant log output

SeaBIOS (version rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org)


iPXE (http://ipxe.org) 00:03.0 CA00 PCI2.10 PnP PMM+7EFD1040+7EF31040 CA00
                                                            


Booting from ROM..[    0.101765] CRIT: [libkvmplat] <trace.c @   41> RIP: 0000002000000004 CS: 0008
[    0.102374] CRIT: [libkvmplat] <trace.c @   42> RSP: 0000000000011f78 SS: 0010 EFLAGS: 00000202
[    0.102553] CRIT: [libkvmplat] <trace.c @   44> RAX: 0000002000000004 RBX: 000000000013b008 RCX: 00000000376cf07e
[    0.102755] CRIT: [libkvmplat] <trace.c @   46> RDX: 0000000000000000 RSI: 0000000400012020 RDI: 0000000000011f90
[    0.102964] CRIT: [libkvmplat] <trace.c @   48> RBP: 0000000000011fc0 R08: 000000000012c14d R09: 000000000012f3d8
[    0.103171] CRIT: [libkvmplat] <trace.c @   50> R10: 0000000000000001 R11: 0000000400001028 R12: 0000000000170220
[    0.103378] CRIT: [libkvmplat] <trace.c @   52> R13: 0000000000000001 R14: 0000000400011020 R15: 0000000000000000
[    0.103656] CRIT: [libkvmplat] <trace.c @   86> base is 0x11fc0 caller is 0x122557
[    0.103856] CRIT: [libkvmplat] <trace.c @   86> base is 0x11fe0 caller is 0x1187c9
[    0.104001] CRIT: [libkvmplat] <trace.c @   86> base is 0x11ff0 caller is 0
[    0.104175] CRIT: [libkvmplat] <trace.c @   66> 
[    0.104264] CRIT: [libkvmplat] <trace.c @   66> 11f60: 00 00 00 00 04 00 00 00 20 02 17 00 00 00 00 00
[    0.104477] CRIT: [libkvmplat] <trace.c @   66> 11f70: c0 1f 01 00 00 00 00 00 46 23 12 00 00 00 00 00
[    0.104669] CRIT: [libkvmplat] <trace.c @   66> 11f80: 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00
[    0.105463] CRIT: [libkvmplat] <trace.c @   66> 11f90: 01 00 00 00 00 00 00 00 20 02 17 00 00 00 00 00
[    0.106140] CRIT: [libkvmplat] <trace.c @   66> 
[    0.106460] CRIT: [libkvmplat] <trace.c @   66> 11fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    0.107111] CRIT: [libkvmplat] <trace.c @   66> 11fc0: e0 1f 01 00 00 00 00 00 57 25 12 00 00 00 00 00
[    0.107768] CRIT: [libkvmplat] <trace.c @   66> 11fd0: 00 00 00 00 00 00 00 00 00 20 01 00 00 00 00 00
[    0.108421] CRIT: [libkvmplat] <trace.c @   66> 11fe0: f0 1f 01 00 00 00 00 00 c9 87 11 00 00 00 00 00
[    0.109090] CRIT: [libkvmplat] <trace.c @   66> 
[    0.109409] CRIT: [libkvmplat] <trace.c @   66> 1ffffffff0:RIP: 0000000000104830 CS: 0008
[    0.110033] CRIT: [libkvmplat] <trace.c @   42> RSP: 000000000015ef10 SS: 0000 EFLAGS: 00000002
[    0.110661] CRIT: [libkvmplat] <trace.c @   44> RAX: 0000000000000000 RBX: 0000001ffffffff0 RCX: 0000000000000780
[    0.111313] CRIT: [libkvmplat] <trace.c @   46> RDX: 00000000000003d4 RSI: 0000000000000000 RDI: 000000000012cf80
[    0.111969] CRIT: [libkvmplat] <trace.c @   48> RBP: 000000000015ef30 R08: 0000000000000046 R09: 000000000000000b
[    0.112621] CRIT: [libkvmplat] <trace.c @   50> R10: 000000000000003e R11: 000000000015ed34 R12: 0000002000000030
[    0.113273] CRIT: [libkvmplat] <trace.c @   52> R13: 0000000000000002 R14: 0000000400011020 R15: 0000000000000000
[    0.113924] CRIT: [libkvmplat] <trace.c @   86> base is 0x15ef30 caller is 0x1057a6
[    0.114529] CRIT: [libkvmplat] <trace.c @   86> base is 0x15ef80 caller is 0x1141c5
[    0.115134] CRIT: [libkvmplat] <trace.c @   86> base is 0x15ef30 caller is 0x1057a6
[    0.115742] CRIT: [libkvmplat] <trace.c @   86> base is 0x15ef80 caller is 0x1141c5
[    0.116347] CRIT: [libkvmplat] <trace.c @   86> base is 0x15ef30 caller is 0x1057a6