[dpdk-dev] [PATCH v6 00/11] al: replace calls to rte_panic and refrain from new instances

[Burakov, Anatoly]

On 08-May-19 12:15 PM, Thomas Monjalon wrote:
> 24/04/2018 08:41, Arnon Warshavsky:
>> The purpose of this patch series is to cleanup the library code
>> from paths that end up aborting the process,
>> and move to checking error values, in order to allow the running process
>> perform an orderly teardown or other mitigation of the event.
>>
>> This patch modifies the majority of rte_panic calls
>> under lib and drivers, and replaces them with a log message
>> and an error return code according to context,
>> that can be propagated up the call stack.
>>
>> - Focus was given to the dpdk initialization path
>> - Some of the panic calls within drivers were left in place where
>>    the call is from within an interrupt or calls that are
>>    on the data path,where there is no simple applicative
>>    route to propagate the error to temination.
>>    These should be handled by the driver maintainers..
>> - local void functions with no api were changed to retrun a value
>>    where needed
>> - No change took place in example and test files
>> - No change took place for debug assertions calling panic
> 
> I did a status of rte_panic/rte_exit calls in libs.
> 
> There are a lot of cleanups to do in EAL.
> We may apply the same kind of solution for Linux, FreeBSD and Windows.
> 
> The status is described below in a kind of call tree:
> 

<snip>

> librte_mempool:
>      void rte_mempool_*
>          RTE_LIBRTE_MEMPOOL_DEBUG
>              rte_panic
> 

(and other similar places)

Could an argument not be made that when debugging options are enabled, 
having rte_panic there is actually useful?

-- 
Thanks,
Anatoly