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Re: [Qemu-devel] [PATCH v6 48/49] linux-user: Split out ioctl
From: |
Laurent Vivier |
Subject: |
Re: [Qemu-devel] [PATCH v6 48/49] linux-user: Split out ioctl |
Date: |
Wed, 13 Feb 2019 14:46:59 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 |
On 13/02/2019 14:09, Laurent Vivier wrote:
> Hi,
>
> this one is really a cut'n'paste but it introduces a problem with
> qemu-alpha, I don't know how/why:
>
> $ sudo unshare --ipc --uts --pid --fork --kill-child --mount chroot
> chroot/alpha/sid/
> Unsupported ioctl: cmd=0x80047476
>
> And then it hangs.
>
> I'll try to debug.
In fact it happens with sid, with ppc64 too, but not with m68k and sh4.
And only with "unshare --pid --fork".
Without "unshare", the result is:
Unsupported ioctl: cmd=0x80047476
bash: cannot set terminal process group (11507): Function not implemented
bash: no job control in this shell
Unsupported ioctl: cmd=0x80087467
Unsupported ioctl: cmd=0x80087467
Unsupported ioctl: cmd=0x802c7415
Thanks,
Laurent