https://bugs.kde.org/show_bug.cgi?id=363740
Bug ID: 363740
Summary: Possible data race in
vgPlain_amd64_linux_REDIR_FOR_vgettimeofday
Product: valgrind
Version: 3.11.0
Platform: RedHat RPMs
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: helgrind
Assignee: [email protected]
Reporter: [email protected]
I checked that gettimeofday is thread-safe. However when I tried to analyze my
program with helgrind, I got following report. Please fix this or suppress it
by default.
==23482== Possible data race during write of size 8 at 0x9218A0 by thread #1
==23482== Locks held: none
==23482== at 0x3803BCCC: vgPlain_amd64_linux_REDIR_FOR_vgettimeofday
(m_trampoline.S:178)
==23482== by 0x5FFD7A9: gettimeofday (in /lib64/libc-2.12.so)
==23482== [remaining part of stack was here]
==23482==
==23482== This conflicts with a previous write of size 8 by thread #2
==23482== Locks held: 1, at address 0x912D80
==23482== at 0x3803BCCC: vgPlain_amd64_linux_REDIR_FOR_vgettimeofday
(m_trampoline.S:178)
==23482== by 0x5FFD7A9: gettimeofday (in /lib64/libc-2.12.so)
==23482== [remaining part of stack was here]
==23482== Address 0x9218a0 is 0 bytes inside data symbol "func"
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