[HAWQ-1337] Log stack info before forward signals sigsegv, sigill or sigbus in CdbProgramErrorHandler()

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.1.0.0-incubating
• Component/s: Core
• Assignee: Radar Da Lei
• Reporter: Paul Guo
• Created: 16/Feb/17 04:12
• Updated: 20/Mar/17 03:58

Description

CdbProgramErrorHandler() is a signal handler, while it seems that it just forwards signal to its its main thread. This is not friendly for development when encountering signals like sigsegv, signal and sigbus, etc. We should save the thread stack info in log before forwarding.