- Minor
Hi there!
There appears to be an issue with GPU passthrough. I had GPU passthorugh working on 6.9.0-rc2 fine, using the latest approach to vfio binding I could find (using /boot/config/vfio-pci.cfg). For some information about vfio setup, please have a look on the screenshots. Unfortunately, I can not provide much detail on how I setup the VM itself, because it was running for quite some time now and I never touched it.
After upgrading to 6.9.1 I am able to launch the VM but I can not access it. My unRAID server logs are spammed with the following entries:
... Mar 15 09:15:56 Prime kernel: vfio-pci 0000:26:00.0: BAR 1: can't reserve [mem 0xc0000000-0xcfffffff 64bit pref] Mar 15 09:15:56 Prime kernel: vfio-pci 0000:26:00.0: BAR 1: can't reserve [mem 0xc0000000-0xcfffffff 64bit pref] Mar 15 09:15:56 Prime kernel: vfio-pci 0000:26:00.0: BAR 1: can't reserve [mem 0xc0000000-0xcfffffff 64bit pref] Mar 15 09:15:56 Prime kernel: vfio-pci 0000:26:00.0: BAR 1: can't reserve [mem 0xc0000000-0xcfffffff 64bit pref] Mar 15 09:15:56 Prime kernel: vfio-pci 0000:26:00.0: BAR 1: can't reserve [mem 0xc0000000-0xcfffffff 64bit pref] ...
My VM outputs:
...
2021-03-15T08:15:56.564833Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c0, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564842Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c1, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564850Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c2, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564859Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c3, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564868Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c4, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564876Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c5, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564885Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c6, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564894Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c7, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564902Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c8, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564911Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2c9, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564920Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2ca, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564936Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2cb, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564948Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2cc, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564958Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2cd, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564968Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2ce, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564978Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2cf, 0x0,1) failed: Device or resource busy
2021-03-15T08:15:56.564987Z qemu-system-x86_64: vfio_region_write(0000:26:00.0:region1+0xbd2d0, 0x0,1) failed: Device or resource busy
...
Resource busy seems quite odd to me. I tried to search this issue first, but I can not find any hint, which made me believe that that issue has to be related to the unRAID update.
Thanks for any help and your hard work on this!
best regards
