[PATCH i-g-t] tests/intel/xe_fault_injection: Ignore all errors while injecting fault

[Daniele Ceraolo Spurio]

On 5/29/2025 1:29 PM, Michal Wajdeczko wrote:
>
> On 29.05.2025 18:23, Daniele Ceraolo Spurio wrote:
>>
>> On 5/29/2025 6:31 AM, Satyanarayana K V P wrote:
>>> Currently, numerous fault messages have been included in the dmesg
>>> ignore list,
>>> and this list continues to expand. Each time a new fault injection
>>> point is
>>> introduced or a new feature is activated, additional fault messages
>>> appear,
>>> making it cumbersome to manage the dmesg ignore list.
>>>
>>> This new patch automatically ignores all error messages from dmesg,
>>> eliminating
>>> the need to add or maintain a dmesg ignore message list.
>> This would make the test almost meaningless. If the test finds an actual
>> bug (i.e., an error we didn't expect), how would CI detect and report it
> but how can you tell upfront, without actually running a test, which
> error is expected and which is not?
>
>> if all errors are ignored? The only situations we would still fail on is
>> when the kernel just dies.
> and that perfectly fins, sine we should look only for BUG and WARNs, as
> it's quite natural and expected that once we inject an error, the driver
> will likely fail to load or proceed, and/or may report some error
> messages, or even try to silently recover, *but* it shouldn't ever crash
>
> and that should be taken as a test goal, not that we look for specific
> error messages that could be changed, omitted, replaced by the different
> driver release or when running on different platform or function

The patch does not look for WARNs though, it ignores all errors with a 
"*" filter, even WARNs. I'm still not fully convinced about ignoring 
anything, but I can understand the POV of ignoring just messages with 
the "ERROR" tag, as suggested in the other replies. I'd be happy with 
that kind of solution.

Daniele

>
> Michal
>
>> Daniele
>>