Ok I've re-ran the test with latest kernel versions on the same systems:
`thiel` (8001-22C) with focal-hwe (5.11.0-34-generic): ``` [ 3255.763649] Oops: Exception in kernel mode, sig: 5 [#1] [ 3255.763723] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV ```
And
`gulpin` (8335-GTA) with hirsute (5.11.0-34-generic) 2nd run of `reuseport_bpf_cpu`: ``` [ 760.451968] BUG: Unable to handle kernel instruction fetch (NULL pointer?) [ 760.452035] Faulting instruction address: 0x00000000 [ 760.452196] Oops: Kernel access of bad area, sig: 11 [#1] [ 760.452212] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV ```
Ok I've re-ran the test with latest kernel versions on the same systems:
`thiel` (8001-22C) with focal-hwe (5.11.0- 34-generic) :
```
[ 3255.763649] Oops: Exception in kernel mode, sig: 5 [#1]
[ 3255.763723] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV
```
And
`gulpin` (8335-GTA) with hirsute (5.11.0-34-generic) bpf_cpu` :
2nd run of `reuseport_
```
[ 760.451968] BUG: Unable to handle kernel instruction fetch (NULL pointer?)
[ 760.452035] Faulting instruction address: 0x00000000
[ 760.452196] Oops: Kernel access of bad area, sig: 11 [#1]
[ 760.452212] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV
```