A Windows Debug build crashes on startup with the following stacktrace (the revision to blame is between 55975 and 55990 inclusive): > user32.dll!_NtUserShowWindow@8() + 0x15 bytes user32.dll!_NtUserShowWindow@8() + 0x15 bytes Safari.dll!Safari::Application::showWelcomePageIfNeeded() + 0xc6 bytes pthreadVC2.dll!pthread_mutex_unlock(pthread_mutex_t_ * * mutex=0x00000001) Line 89 + 0x14 bytes C Safari.dll!run() + 0xef bytes CFNetwork.dll!CFNetServiceIsBonjourAvailable() Line 62 C++ Safari.dll!safariMain() + 0x596 bytes Safari.dll!_safariDLLMain@16() + 0x38 bytes Safari.exe!_wWinMain@16() + 0x152 bytes Safari.exe!@__security_check_cookie@4() + 0x1aa bytes kernel32.dll!@BaseThreadInitThunk@12() + 0x12 bytes ntdll.dll!___RtlUserThreadStart@8() + 0x27 bytes ntdll.dll!__RtlUserThreadStart@8() + 0x1b bytes and a couple of messages in the console: First-chance exception at 0x5ee85a1b (WebKit.dll) in Safari.exe: 0xC0000005: Access violation reading location 0x00000000. First-chance exception at 0x64e65671 in Safari.exe: 0xC0000005: Access violation reading location 0x00000000. ASSERTION FAILED: it->m_next->m_previous == it (...\webkitbuild\include\private\javascriptcore\HashTable.h:1088 WTF::removeIterator) First-chance exception at 0x5ed22b3b (WebKit.dll) in Safari.exe: 0xC0000005: Access violation writing location 0xbbadbeef. First-chance exception at 0x76cf0dd3 (user32.dll) in Safari.exe: 0xC0000005: Access violation reading location 0x00000010. Unhandled exception at 0x76cf0dd3 (user32.dll) in Safari.exe: 0xC000041D: An unhandled exception was encountered during a user callback.
r55975 removed support for running nightly builds of WebKit with Safari 4.0.4. Have you tried running with Safari 4.0.5?
Thanks, nightly+4.0.5 works fine.