Hi Olivier,
On 29/10/2026 19:10, Olivier Valentin wrote:
Le 29 octobre 2026 19:27:54 GMT+01:00, Michael Kelly <[email protected]> a
écrit :
0000000e00000000: Cannot access memory
It seems to me that Qemu has removed the memory region for the NVMe device. I
think it would be impossible for Hurd/gnumach to do anything at all that might
make that happen, wouldn't it ?
Hi Mike,
Could it be caused by something updating the 64 bits BAR ?
Recently I got bitten by the DDE driver, which was disabling the BAR of my Qemu
device at initialization. I suspect that the ddekit PCI code considers that
64bits is not supported.
I'll certainly look into activity in that area, thanks. The highest RAM
physical address in this VM is 0x140000000 and the PCI physical address
is at 0xe00000000. I would have thought that the PCI address region
would remain in Qemu regardless of whether the BAR was enabled or
disabled but honestly this is merely my surmise.
Cheers,
Mike.
