[IMPALA-5666] Use manual poisoning for ASAN with new buffer pool

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.10.0
• Fix Version/s: Impala 2.10.0
• Component/s: Backend
• Target Version: Impala 2.10.0
• Epic Color: ghx-label-3
• Assignee: Henry Robinson
• Reporter: Tim Armstrong
• Created: 14/Jul/17 19:06
• Updated: 14/Aug/17 20:12
• Resolved: 14/Aug/17 20:12

Description

We should use https://github.com/google/sanitizers/wiki/AddressSanitizerManualPoisoning for the to catch bugs where memory buffers are accessed after they are freed. We should do this for MemPools and the BufferPool to start off with and maybe for DiskIoMgr buffers and FreePool allocations.

We can already catch this with --disable_mem_pools but it would be good to have stricter checks enabled by default.