[Macchiato] [EXT] Network driver crash

[Stefan Chulski]

> steve at mjolnir:~$ cat /proc/interrupts
>            CPU0       CPU1       CPU2       CPU3
>   1:          0          0          0          0     GICv2  25 Level     vgic
>   3:       4148       3364       2992       2949     GICv2  30 Level     arch_timer
>   4:          0          0          0          0     GICv2  27 Level     kvm guest timer
>   7:        536       1027          0          0     GICv2  51 Level     ttyS0
>   9:          0          0          0          0     GICv2  95 Level     ahci[f2540000.sata]
>  10:         48     806328          0          0     GICv2  94 Level     xhci-hcd:usb1
>  11:          0          0          0          0     GICv2  93 Level     xhci-hcd:usb3
>  12:          0          0          0          0     GICv2 118 Level     mv64xxx_i2c
>  13:          0          0          0          0     GICv2 119 Level     mv64xxx_i2c
>  14:          0          0          0          0     GICv2  91 Level     f2760000.trng
>  22:          0          0          0          0     GICv2  64 Level     armada8k-pcie, PCIe PME,
> aerdrv
>  24:       3045          0       2465          0     GICv2 319 Level     ahci[f4540000.sata]
>  26:          0          0          0          0     GICv2 344 Level     f4760000.trng
>  27:          0          0          0          0      pMSI   0 Edge      f0400000.xor
>  28:          0          0          0          0      pMSI 2048 Edge      f0420000.xor
>  29:          0          0          0          0      pMSI 4096 Edge      f0440000.xor
>  30:          0          0          0          0      pMSI 6144 Edge      f0460000.xor
>  31:          0          0          0          0      pMSI 8192 Edge      f26a0000.xor
>  32:          0          0          0          0      pMSI 10240 Edge      f26c0000.xor
>  33:          0          0          0          0      pMSI 12288 Edge      f46a0000.xor
>  34:          0          0          0          0      pMSI 14336 Edge      f46c0000.xor
>  35:          0          0          0          0  f03f0100.interrupt-controller  17 Level     arm-
> pmu
>  70:          0          0          0          0     GICv2 294 Level     eth2
>  71:          0          0          0          0       MSI 524288 Edge      nvkm
> IPI0:      1564       1754       1721       1879       Rescheduling interrupts
> IPI1:      1065        735       1252       1831       Function call interrupts
> IPI2:         0          0          0          0       CPU stop interrupts
> IPI3:         0          0          0          0       CPU stop (for crash dump) interrupts
> IPI4:         0          0          0          0       Timer broadcast interrupts
> IPI5:         0          0          0          0       IRQ work interrupts
> IPI6:         0          0          0          0       CPU wake-up interrupts
> Err:          0
> 
> After some testing, I just see the "CPU3" column incrementing for eth2.
> 
> >And cat irq affinity for each eth2  interrupt.
> 
> The only eth2 interrupt I can see is 70.

IRQ requested during interface open procedure. 
So you should do "ifconfig eth2 up".
I don't have mainline code right now, but should be something like this:
# ifconfig eth2 up
# cat /proc/interrupts | grep eth2
134:          1          0          0          0       ICU 129 Level     f4000000.ppv22.eth2.link
135:          0          0          0          0       ICU  39 Level     f4000000.ppv22.eth2.cpu0
136:          0          0          0          0       ICU  43 Level     f4000000.ppv22.eth2.cpu1
137:          0          0          0          0       ICU  47 Level     f4000000.ppv22.eth2.cpu2
138:          0          0          0          0       ICU  51 Level     f4000000.ppv22.eth2.cpu3
# cat /proc/irq/138/smp_affinity
8

On which commit based your code?
Do you have this fix:
https://patchwork.ozlabs.org/patch/834189/

Stefan,
Best Regards.