https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88791
--- Comment #5 from dominik.stras...@onespin-solutions.com --- ASAN from git crashes like this. Looks like a double fault. SignalHandler_Unix.h is in my application's code. I've attached ASAN's debug output where I removed all messages talking about poisoning/unpoisoning as they look unrelated. #5 0x00007f6fd264c005 in SYSTEM::handleSignalForThread (t=140117893179136) at SignalHandler_Unix.h:412 #6 0x00007f6fd264c57f in SYSTEM::gBadSignalHandler (signalNr=11, info=0x7f6fbd3fb070, ctx=0x7f6fbd3faf40) at SignalHandler_Unix.h:478 #7 <signal handler called> #8 __asan::GetCurrentThread () at ../../../../gcc-git/libsanitizer/asan/asan_thread.cc:415 #9 0x00007f6ffa37c58d in __asan_handle_no_return () at ../../../../gcc-git/libsanitizer/asan/asan_rtl.cc:538 #10 0x00007f6fd264c04e in SYSTEM::handleSignalForThread (t=140117893179136) at SignalHandler_Unix.h:423 #11 0x00007f6fd264c57f in SYSTEM::gBadSignalHandler (signalNr=11, info=0x7f6fbd3fbd70, ctx=0x7f6fbd3fbc40) at SignalHandler_Unix.h:478 #12 <signal handler called> #13 GetCurrentThread () at ../../../../gcc-git/libsanitizer/asan/asan_thread.cc:415 #14 __asan::GetCurrentTidOrInvalid () at ../../../../gcc-git/libsanitizer/asan/asan_thread.cc:429 #15 0x00007f6ffa37a1ea in __asan::ReportGenericError (pc=140118247917729, bp=bp@entry=140117893172896, sp=sp@entry=140117893172888, addr=105827994255744, is_write=is_write@entry=false, access_size=access_size@entry=8, exp=0, fatal=true) at ../../../../gcc-git/libsanitizer/asan/asan_report.cc:459 #16 0x00007f6ffa37aea8 in __asan::__asan_report_load8 (addr=<optimized out>) at ../../../../gcc-git/libsanitizer/asan/asan_rtl.cc:119 #17 0x00007f6fd264c8a1 in SYSTEM::gBadSignalHandler (signalNr=11, info=0x7f6fbd3fd630, ctx=0x7f6fbd3fd500) at SignalHandler_Unix.h:502 #18 <signal handler called> #19 __asan::AsanThread::SetThreadStackAndTls (this=this@entry=0x7f6fbc552000, options=<optimized out>) at ../../../../gcc-git/libsanitizer/asan/asan_thread.h:80 #20 0x00007f6ffa37e619 in __asan::AsanThread::Init (this=this@entry=0x7f6fbc552000, options=options@entry=0x0) at ../../../../gcc-git/libsanitizer/asan/asan_thread.cc:223 #21 0x00007f6ffa37ea64 in __asan::AsanThread::ThreadStart (this=0x7f6fbc552000, os_id=5519, signal_thread_is_registered=0x7f6fc29da978) at ../../../../gcc-git/libsanitizer/asan/asan_thread.cc:244 #22 0x00007f6fd150de25 in start_thread () from /lib64/libpthread.so.0 #23 0x00007f6fd01dcbad in clone () from /lib64/libc.so.6
