Re: [Qemu-block] [Qemu-devel] I/O errors reported to guest for raw-image-file backed /dev/vda - but host sees no I/O errors

[Lutz Vieweg]

On 04/22/2016 03:16 AM, Fam Zheng wrote:
> On Thu, 04/21 17:54, Lutz Vieweg wrote:
> > Nevertheless, I think qemu could be somewhat more verbose, reporting
> > when and why it stops emulation. Something like a message to the monitor
> > or to standard out would be helpful to start with...
>
> QEMU does report an error message to connected monitor if configured to. See
> the werror= and rerror= options.

I looked up these options, but both the man-page and the source code
did not reveal any option to emit error messages to the qemu monitor -
the "report" option value just causes the guest to see the error code,
but that doesn't mean a message to the qemu monitor.

Regards,

Lutz Vieweg