Hello Raz,
Can you specifically point it out in phase it is stuck. I guess IMPORT PROPER.
If your upgrade is in import proper it common to get dumps specifically while upgrading base Netweaver components ie. SAP_BASIS.
Please monitor the import from OS level
>> tp is running or not
>>check tp sys logs
>> tmp/log are updating properly or not
As per my experience its running properly.
Regards,
Surojit