Am Fri, 13 Apr 2018 01:21:22 -0700
schrieb <a.ku...@matellio.com>:

> Hi all,
> 
> I am getting the below crash after few minutes when non root cell is
> running.
> 
> [root@localhost ~]# FATAL: Invalid PIO write, port: 70 size: 1
> RIP: 0xffffffff90036e0b RSP: 0xffffb34249697d38 FLAGS: 6
> RAX: 0x000000000000000b RBX: 0x0000000000000012 RCX:
> 0x0000000051eb851f RDX: 0x0000000000000064 RSI: 0x000000000000000c
> RDI: 0x000000000000000b CS: 10 BASE: 0x0000000000000000 AR-BYTES:
> a09b EFER.LMA 1 CR0: 0x0000000080050033 CR3: 0x000000070920a002 CR4:
> 0x00000000003626e0 EFER: 0x0000000000000d01
> Parking CPU 18 (Cell: "RootCell")
> 

The RIP and your kernel symbols should also tell you which device
driver is behind that access. You could also unload that driver or
otherwise make it not access the port.

Henning

> I have added access into the pio_bitmap region of both root and non
> root cell still i am getting this issue. If anyone faced the similar
> issue and let me anything missed in the config file
> 
> .pio_bitmap = {
>         /*[     0/8 ...   0x3f/8] = -1,*/
>         [     0/8 ...   0x7/8] = 0,    /*0x1 port crash*/
>         [     8/8 ...   0x3f/8] = -1,
>         [  0x40/8 ...   0x47/8] = 0xf0, /* PIT */
>         [  0x48/8 ...   0x5f/8] = -1,
>         [  0x60/8 ...   0x67/8] = 0xec, /* HACK: NMI status/control */
>         [  0x68/8 ...   0x6f/8] = -1,
> 
>         [  0x70/8 ...   0x77/8] = 0,    /* added */
> 
>         /*[  0x78/8 ...   0x3af/8] = -1,*/
>         [  0x78/8 ...   0xaf/8] = -1,
>                  .......
> 
> I have attached the root and non-root cell configs
> 

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