陈 璇 <Sakura286@outlook.com> 于2022年10月11日周二 19:42写道：

Greetings.

Recently I need a mips64el chroot. But qemu crashed with "qemu: uncaught target signal 11 (Segmentation fault) - core dumped Segmentation fault" after I ran "chroot" command.

My host is Debian sid amd64 on VMWare. Here are the commands which I ranned with outputs .

```console
infinity@debian:~$ sudo apt install binfmt-support qemu-user-static mmdebstrap
...balabala...

infinity@debian:~$ sudo mkdir -p /chroots/sid-mips64el

infinity@debian:~$ sudo mmdebstrap --arch=mips64el sid /chroots/sid-mips64el http://ftp.debian.org/debian
I: automatically chosen mode: root
I: mips64el cannot be executed natively, but transparently using qemu-user binfmt emulation
I: automatically chosen format: directory
I: running apt-get update...
done
I: downloading packages with apt...
done
I: extracting archives...
done
I: installing essential packages...
done
I: installing remaining packages inside the chroot...
done
done
I: cleaning package lists and apt cache...
done
done
I: success in 145.9303 seconds

infinity@debian:~$ sudo chroot /chroots/sid-mips64el
qemu: uncaught target signal 11 (Segmentation fault) - core dumped Segmentation fault
```

Is there a qemu-mips64el in /chroots/sid-mips64el/usr/bin ?
I guess mmdebootstrap put an old version of qemu into it?

I did not find core files after this seg fault.

This chroot works well with sbuild. I just cannot chroot into it directly.

Sbuild will mount-bind the qemu of host system into guest rootfs.
I guess it is the reason.

From,
Sakura286

--
YunQiang Su

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