Re: [ISSUE] `cxl disable-region region0` twice but got same output

[Dave Jiang <dave.jiang@intel.com>]

On 10/29/23 23:41, Cao, Quanquan/曹 全全 wrote:
> Dear Linux Community Members,
> 
> I am writing to seek assistance with a issue that I have encountered while testing [Repeat executing the "cxl disable-region region0" command]. I have provided a detailed description of the problem along with relevant test for reference. I would greatly appreciate it if you could spare some time to help me resolve this issue.

Hi Quanquan,
I've reproduced the issue. I'll take a look.

> 
> Problem Description:
> 
> After investigation, it was found that when disabling the region and attempting to disable the same region again, the message "cxl region: cmd_disable_region: disabled 1 region" is still returned.
> I consider this to be unreasonable.
> 
> 
> Test Example:
> 
> [root@fedora-37-client memory]# cxl list
> [
>   {
>     "memdevs":[
>       {
>         "memdev":"mem0",
>         "ram_size":1073741824,
>         "serial":0,
>         "host":"0000:0d:00.0"
>       }
>     ]
>   },
>   {
>     "regions":[
>       {
>         "region":"region0",
>         "resource":27111981056,
>         "size":1073741824,
>         "type":"ram",
>         "interleave_ways":1,
>         "interleave_granularity":256,
>         "decode_state":"commit"
>       }
>     ]
>   }
> ]
> 
> [root@fedora-37-client ~]# cxl disable-region region0
> cxl region: cmd_disable_region: disabled 1 region
> [root@fedora-37-client ~]# cxl disable-region region0
> cxl region: cmd_disable_region: disabled 1 region
> 
> expectation:cmd_disable_region: disabled 0 region
> 
> 
> Thank you very much for taking the time to review my issue. I am grateful for your assistance and look forward to your response.
> 
> Best regards,
> Quanquan Cao
> caoqq@fujitsu.com