Bug 502288

Summary:	s390x: Memcheck false positives with NNPA last tensor dimension
Product:	[Developer tools] valgrind	Reporter:	Andreas Arnez <arnez>
Component:	general	Assignee:	Julian Seward <jseward>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Andreas Arnez 2025-04-01 15:16:20 UTC

When filling a 4D input tensor without initializing the pad elements, memcheck may complain about the NNPA instruction like this:
  ==3180208== Syscall param NNPA(in_tensor_1) points to uninitialised byte(s)
This is a false positive, because the architecture declares the pad elements to be ignored.

Comment 1 Andreas Arnez 2025-04-01 15:22:22 UTC

Fixed with commit bba9d299ca5ed0d6220fd47cf0a5eed5a7ce3b55.