@TeddyAstie From what I've tried...It won't work at all in Linux. It kind of works in Windows, and while I do see some load on the GPU when running something, there's as much if not more load on the CPU. It's not what I expected at least. I've never really gamed on PC, and definitely never Linux. My only uses for GPU's have been in media composition which was always on dedicated systems and Nvidia GPUs. More recently I've been doing some AI tasks, again with passed-through NVidia GPUs. Side tangent... I ran into another workload last night where the app wanted OpenGL...But OpenGL doesn't work with the "normal" VGA adapter in XCP-ng, and I don't have a GPU on that particular pool to try a pass-through. That lead me to VirGL, but it doesn't look like that's gone anywhere.

That timeline is the clearest version of this yet. xen04 going down the same way as xen05 makes the race look real to me rather than coincidental, unless I am reading the ordering wrong. The fault lands inside drbd_bm_count_bits, so in the DRBD module itself, which makes me think this is an upstream LINBIT question as much as an XCP-ng one. I do not know enough about how that module gets packaged here to say who owns the fix though. Might be worth another mention to @Team-Storage so someone can open your bundles with your post #10 next to them. On the padding idea I am out of my depth: no idea whether LINSTOR can be told to pre-round a volume at creation, but asking LINBIT directly seems worth a try since it would sidestep drbd_bm_resize entirely.

@poddingue yeah I saw it now but I was more like mentioning that many people also have the same problem. Hope it gets resolved soon

Got this issue since 2026-07-12.

@pedro_udifar Hi, You can try again with minPartSize=100000000 indeed. But I would advise you to contact B2 directly. They should have a clearer error to show instead of a 500. Thanks for your patience and your help

@john.c Unfortunately, I cannot answer your question in the affirmative. I only use XCP-ng with TrueNAS. @Team-Storage have y'all had a chance to take a look at the bug report I filed? This issue is quite serious.

@poddingue Thank you for all the details and advise. I will reach out to them to see if it is anywhere on the project horizon. Thanks much, and have a great day!

@Bastien-Nollet Perfect, thanks Bastien! Thanks for looking into this, I really appreciate how responsive everyone at Vates is on this forum.

Thanks a lot @msupport ! @all-ki could you add this to our IPMI doc to be published ?