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Fix and enhance the assertion of no palloc's in a critical section.

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The assertion failed if WAL_DEBUG or LWLOCK_STATS was enabled; fix that by
using separate memory contexts for the allocations made within those code
blocks.

This patch introduces a mechanism for marking any memory context as allowed
in a critical section. Previously ErrorContext was exempt as a special case.

Instead of a blanket exception of the checkpointer process, only exempt the
memory context used for the pending ops hash table.
This commit is contained in:
Heikki Linnakangas
2014-06-30 10:13:48 +03:00
parent a749a23d7a
commit 1c6821be31
9 changed files with 147 additions and 42 deletions
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2
src/include/utils/memutils.h
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@ -101,6 +101,8 @@ extern MemoryContext GetMemoryChunkContext(void *pointer);
extern MemoryContext MemoryContextGetParent(MemoryContext context);
extern bool MemoryContextIsEmpty(MemoryContext context);
extern void MemoryContextStats(MemoryContext context);
extern void MemoryContextAllowInCriticalSection(MemoryContext context,
bool allow);
#ifdef MEMORY_CONTEXT_CHECKING
extern void MemoryContextCheck(MemoryContext context);