Olivier,
On 29/10/2026 19:24, Michael Kelly wrote:
Hi Olivier,
On 29/10/2026 19:10, Olivier Valentin wrote:
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.
How did you work around the Netdde problem that you see? It's possible
that my situation is similar, since the loss of the memory address in
Qemu starts just as the network interface is being configured.
Thanks,
Mike.
