Bug 47753

Bug: 47753

Impact:

Product:

GemStone/S 64 Bit

Versions:

3.4.2, 3.4.1, 3.4, 3.3.8, 3.3.7, 3.3.6, 3.3.5, 3.3.4, 3.3.3, 3.3.1, 3.3, 3.2.16, 3.2.15, 3.2.14, 3.2.13, 3.2.12, 3.2.11, 3.2.10, 3.2.9, 3.2.8, 3.2.7, 3.2.6, 3.2.5, 3.2.4, 3.2.3, 3.2.2, 3.2.1, 3.x

Platform:

Fixed In:

3.4.3, 3.3.9

Very large GEM_MAX_SMALLTALK_STACK_DEPTH can result in SEGV on AlmostOutOfStack on x86_64

With a very large GEM_MAX_SMALLTALK_STACK_DEPTH for Gems running on x86_64 processors (Linux and Solaris/X86), when an AlmostOutOfStack occurs, the Gem cashes with a SEGV.

The SEGV is in stack memory due to the native code's use of 8 bytes of C stack per Smalltalk frame.

Workaround

Set GEM_MAX_SMALLTALK_STACK_DEPTH to 30000 or less.