RISC-V: crash in riscv_get_time()

[Bin Meng]

On Thu, Aug 6, 2020 at 10:28 PM Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>
> On 06.08.20 13:18, Rick Chen wrote:
> > Hi Heinrich
> >
> >> From: Heinrich Schuchardt [mailto:xypron.glpk at gmx.de]
> >> Sent: Thursday, August 06, 2020 6:45 PM
> >> To: Bin Meng; Rick Jian-Zhi Chen(陳建志)
> >> Cc: U-Boot Mailing List
> >> Subject: RISC-V: crash in riscv_get_time()
> >>
> >> Hello Rick, hello Bin,
> >>
> >> when I run qemu-riscv64_defconfig using
> >>
> >> qemu-system-riscv64 -machine virt -m 1G -nographic \
> >>         -bios u-boot \
> >>         -device virtio-net-device,netdev=net0 \
> >>         -netdev user,id=net0,tftp=tftp
> >>
> >> a crash occurs in riscv_get_time() when executing readq().
> >>
> >> $ qemu-system-riscv64 --version
> >> QEMU emulator version 5.0.0 (Debian 1:5.0-13)
> >>
> >> Looking at doc/board/emulation/qemu-riscv.rst this should work.
> >>
> >> Is there something missing in the documentation?
> >>
> >
> > You can try this
> > ./qemu-system-riscv64 -nographic -machine virt -bios u-boot -device
> > virtio-net-device,netdev=net0 -netdev user,id=net0,tftp=tftp
> >
> > It can work as below:
> >
> > U-Boot 2020.10-rc1-00299-g89150a9 (Aug 06 2020 - 19:14:01 +0800)
> >
> > CPU:   rv64imafdcsu
> > Model: riscv-virtio,qemu
> > DRAM:  128 MiB
> > In:    uart at 10000000
> > Out:   uart at 10000000
> > Err:   uart at 10000000
> > Net:   eth0: virtio-net#0
> > Hit any key to stop autoboot:  0
> > => help
>
> But on Debian Bullseye it fails:
>
> $ git reset --hard origin/master
> $ make mrproper
> $ make qemu-riscv64_defconfig
> $ export CROSS_COMPILE
> $ export CROSS_COMPILE=riscv64-linux-gnu-
> $ qemu-system-riscv64 -nographic -machine virt \
> > -bios u-boot \
> > -device virtio-net-device,netdev=net0 \
> > -netdev user,id=net0,tftp=tftp
>

Just rebuilt a QEMU 5.0.0 on Ubuntu 16.04 and cannot reproduce.
Something is wrong with Debian?

Regards,
Bin