Le 29 octobre 2026 20:48:06 GMT+01:00, Michael Kelly <[email protected]> a
écrit :
>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.
I switched to rumpnet and started investigating. But did not have a lot of time
afterwards 😅
--
Olivier
