https://bugs.kde.org/show_bug.cgi?id=405716
Bug ID: 405716
Summary: int-overflow in stack size Margin calculation
Product: valgrind
Version: 3.13.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: drd
Assignee: bvanass...@acm.org
Reporter: alsdfjoiloeilt4o23l34jjjlskfjsadoh8s7df736giwqk@mailin
ator.com
Target Milestone: ---
SUMMARY
int-overflow in stack size Margin calculation
STEPS TO REPRODUCE
1. run a multithreaded program which uses more stack than available with the
following call: valgrind --tool=drd --show-stack-usage=yes ./myProg
2. drd reports: ==10476== thread 9 (which is a detached thread) finished and
used 18223 bytes out of 16384 on its stack. Margin: 18446744073709549777 bytes.
OBSERVED RESULT
Margin shows a huge value
EXPECTED RESULT
Margin should show -1839
SOFTWARE/OS VERSIONS
Linux Xubuntu 18.04
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