<div dir="ltr">I take it back, that build doesn't have that revision. It could be r<span style="color:rgb(0,0,0)">302461, which is from the first failing build: </span><font color="#000000"><a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/1815">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/1815</a></font><div><font color="#000000"><br></font></div><div><font color="#000000">That revision is much safer, though. I am rebuilding with debug info enabled. First I ran check-msan without RelWithDebInfo, and of course I didn't reproduce the problem.</font></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 8, 2017 at 6:28 PM, Kostya Serebryany <span dir="ltr"><<a href="mailto:kcc@google.com" target="_blank">kcc@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks! </div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 8, 2017 at 6:25 PM, Reid Kleckner <span dir="ltr"><<a href="mailto:rnk@google.com" target="_blank">rnk@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I give it 99% odds it was r302483. Let's revert and debug it tomorrow.</div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_6237612380645627026h5">On Mon, May 8, 2017 at 6:20 PM, Kostya Serebryany via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_6237612380645627026h5"><div dir="ltr"><div>David, Dean, all, </div><div><br></div>The bots got red today with assertion failures in llvm::DbgVariable::addMMIEntry<wbr>: <br><div><a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/1816/steps/check-msan%20in%20gcc%20build/logs/stdio" target="_blank">http://lab.llvm.org:8011/build<wbr>ers/sanitizer-x86_64-linux/bui<wbr>lds/1816/steps/check-msan%20in<wbr>%20gcc%20build/logs/stdio</a></div><div>I did not find the offender yet. Any ideas? <br><div><pre style="font-family:"courier new",courier,monotype,monospace;color:rgb(0,0,0);font-size:medium"><span class="m_6237612380645627026m_-1669519349742332932m_-2617045583664390878gmail-stdout">clang-5.0: /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.h:131: void llvm::DbgVariable::addMMIEntry<wbr>(const llvm::DbgVariable&): Assertion `V.Var == Var && "conflicting variable"' failed.
clang-5.0: /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.h:131: void llvm::DbgVariable::addMMIEntry<wbr>(const llvm::DbgVariable&): Assertion `V.Var == Var && "conflicting variable"' failed.
#0 0x0000000002000bea llvm::sys::PrintStackTrace(llv<wbr>m::raw_ostream&) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/Support/Unix/Signals.inc:<wbr>402:0
#1 0x0000000001ffea1e llvm::sys::RunSignalHandlers() /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/Support/Signals.cpp:44:0
#2 0x0000000001ffeb92 SignalHandler(int) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/Support/Unix/Signals.inc:<wbr>242:0
#3 0x00007fa903bee390 __restore_rt (/lib/x86_64-linux-gnu/libpthr<wbr>ead.so.0+0x11390)
#4 0x00007fa902b7b428 gsignal (/lib/x86_64-linux-gnu/libc.so<wbr>.6+0x35428)
#5 0x00007fa902b7d02a abort (/lib/x86_64-linux-gnu/libc.so<wbr>.6+0x3702a)
#6 0x00007fa902b73bd7 (/lib/x86_64-linux-gnu/libc.so<wbr>.6+0x2dbd7)
#7 0x00007fa902b73c82 (/lib/x86_64-linux-gnu/libc.so<wbr>.6+0x2dc82)
#8 0x0000000002601cd4 llvm::DbgVariable::addMMIEntry<wbr>(llvm::DbgVariable const&) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.h:130:0
#9 0x0000000002601cd4 llvm::DwarfFile::addScopeVaria<wbr>ble(llvm::LexicalScope*, llvm::DbgVariable*) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfF<wbr>ile.cpp:104:0
#10 0x00000000025f5a29 llvm::DwarfDebug::createAbstra<wbr>ctVariable(llvm::DILocalVariab<wbr>le const*, llvm::LexicalScope*) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-li</span><span class="m_6237612380645627026m_-1669519349742332932m_-2617045583664390878gmail-stdout">nux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.cpp:746:0
</span><span class="m_6237612380645627026m_-1669519349742332932m_-2617045583664390878gmail-stdout">#11 0x00000000025f5cf4 llvm::DwarfDebug::ensureAbstra<wbr>ctVariableIsCreatedIfScoped(st<wbr>d::pair<llvm::DILocalVariable const*, llvm::DILocation const*>, llvm::MDNode const*) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.cpp:767:0
#12 0x00000000025f5d38 llvm::DwarfDebug::createConcre<wbr>teVariable(llvm::LexicalScope&<wbr>, std::pair<llvm::DILocalVariabl<wbr>e const*, llvm::DILocation const*>) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.cpp:961:0
#13 0x00000000025f901c llvm::DwarfDebug::collectVaria<wbr>bleInfo(llvm::DwarfCompileUnit<wbr>&, llvm::DISubprogram const*, llvm::DenseSet<std::pair<llvm:<wbr>:DILocalVariable const*, llvm::DILocation const*>, llvm::DenseMapInfo<std::pair<l<wbr>lvm::DILocalVariable const*, llvm::DILocation const*> > >&) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.cpp:1005:0
#14 0x00000000025f9ae8 llvm::DwarfDebug::endFunctionI<wbr>mpl(llvm::MachineFunction const*) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DwarfD<wbr>ebug.cpp:1208:0
#15 0x000000000262f75a llvm::DebugHandlerBase::endFun<wbr>ction(llvm::MachineFunction const*) /mnt/b/sanitizer-buildbot1/san<wbr>itizer-x86_64-linux/build/llvm<wbr>/lib/CodeGen/AsmPrinter/DebugH<wbr>andlerBase.cpp:256:0</span></pre></div></div></div>
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