Re: Strange symbols_lookup() behaviour in test-symbols on arm64 CI

[Jan Beulich <jbeulich@xxxxxxxx>]

On 15.12.2025 12:00, Mykola Kvach wrote:
> On Thu, Dec 11, 2025 at 6:40 PM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>>
>> On 11.12.2025 17:30, Mykola Kvach wrote:
>>> I have now attached the corresponding build log.
>>
>> Okay, so indeed not a table size change issue here. Then I fear some 
>> instrumenting
>> will be needed to at least know what exactly is going wrong. Alternatively 
>> you could
>> arrange for the intermediate binaries to not be deleted, and make them 
>> available
>> somehow / somewhere for me to see whether by inspection I can gain some clue.
> 
> I prepared a small patch to keep the intermediate artifacts instead of
> deleting them.
> 
> It removes two cleanup commands:
>     xen/arch/arm/Makefile: drops rm -f $(@D)/.$(@F).[0-9]* (keeps
> .xen-syms.* intermediates)

This alone should be sufficient.

>     xen/scripts/Kbuild.include: drops rm -f $(@D)/.cst.$$$$ (keeps
> .cst.<pid> used by compare-symbol-tables)

These can be easily re-created from the ones retained above. (They might be
of immediate interest - and hence worth keeping - if the comparisons failed,
but you said the build works fine for you even with these comparisons added.)

Jan

> Should I gather any other files/logs that would be useful?
> 
> 
> 
> Mykola
> 
>>
>> Jan