Re: x86_64 image fails to start with high ram

[yelninei--- via Bug reports for the GNU Hurd]

Nov 23, 2025, 19:24 by samuel.thiba...@gnu.org:

> Samuel Thibault, le mer. 19 nov. 2025 16:23:02 +0100, a ecrit:
>
>> yelninei--- via Bug reports for the GNU Hurd, le mer. 19 nov. 2025 15:11:28 
>> +0100, a ecrit:
>> > Trying to run a x86_64 hurd image with qemu and it fails to boot when the 
>> > -m option is too high. Something gets stuck after grub, the last message is
>> > ext2fs: part:1:device:wd0: Input/output error
>> > 
>> > After reducing the ram to < 3584 the issue goes away.
>> > 
>> > This happens both with images cross compiled with guix and the 
>> > debian-hurd-amd64-20250807.img.
>> > 
>> > Is this limitation currently known?
>>
>> No, we have some buildds with 16GB ram.
>>
>
> Perhaps try with -M q35: perhaps there are issues with some virtual
> devices when using 64b physical addresses.
>

HI Samuel,
Thanks a lot, that seems to solve it
> Samuel
>