https://bugs.kde.org/show_bug.cgi?id=406681
Bug ID: 406681
Summary: Unrecognized instruction _dispatch_kq_poll (in
/usr/lib/system/libdispatch.dylib)
Product: valgrind
Version: 3.15 SVN
Platform: Compiled Sources
OS: macOS
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: eub...@virginia.edu
Target Milestone: ---
Created attachment 119507
--> https://bugs.kde.org/attachment.cgi?id=119507&action=edit
Full output of valgrind -v
SUMMARY
Trying to memcheck my executable compiled under mpicxx gives the following
error:
==68279== valgrind: Unrecognised instruction at address 0x100764b7b.
==68279== at 0x100764B7B: _dispatch_kq_poll (in
/usr/lib/system/libdispatch.dylib)
My code runs fine outside valgrind, it is stable, and there are no warnings
about bad jumps before the error in valgrind. The instruction seems to be in a
system library, so I think the instruction is legitimate.
OBSERVED RESULT
Full output of valgrind -v is attached.
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Valgrind 3.15.0 downloaded and built today, tested with 'valgrind ls -L'.
mpicxx --version:
Apple LLVM version 10.0.0 (clang-1000.11.45.5)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
My executable compiled with:
mpicxx -std=c++11 -g -O3 ... -lstdc++
uname -a:
Darwin Biocomplexitys-Eubank.local 17.7.0 Darwin Kernel Version 17.7.0: Thu Dec
20 21:47:19 PST 2018; root:xnu-4570.71.22~1/RELEASE_X86_64 x86_64
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