The leaks build slaves have been crashing repeatedly following <http://trac.webkit.org/projects/webkit/changeset/24492>. The crash happens under DocLoader::removeCachedResource().
Mitz, I see crashes like the following: 0 <<00000000>> 0xffff8264 __spin_lock + 4 (cpu_capabilities.h:179) 1 libSystem.B.dylib 0x90114010 stack_logging_log_stack + 608 2 libSystem.B.dylib 0x90003558 malloc + 688 3 com.apple.JavaScriptCore 0x004879ec WTF::fastMalloc(unsigned long) + 104 (FastMalloc.cpp:142) 4 com.apple.WebCore 0x011ff0e0 WebCore::newUCharVector(unsigned) + 40 (StringImpl.cpp:59) 5 com.apple.WebCore 0x011ff4c4 WebCore::StringImpl::init(unsigned short const*, unsigned) + 132 (StringImpl.cpp:125) Is that what you're talking about? If so, this is a known bug in Tiger malloc / leaks. We've seen it before on the leaks bot, and it's not related to r24492.
Wait a sec. I was looking at the wrong part of the crash log. Here's the crash Mitz was talking about: 0 com.apple.WebCore 0x015eef44 WebCore::StringImpl::length() const + 20 (StringImpl.h:72) 1 com.apple.WebCore 0x015efb84 WTF::StrHash<WebCore::StringImpl*>::equal(WebCore::StringImpl const*, WebCore::StringImpl const*) + 100 (StringHash.h:42) 2 com.apple.WebCore 0x015f11b4 WTF::IdentityHashTranslator<WebCore::StringImpl*, std::pair<WebCore::StringImpl*, int>, WTF::StrHash<WebCore::StringImpl*> >::equal(WebCore::StringImpl* const&, WebCore::StringImpl* const&) + 56 (HashTable.h:257)
<rdar://problem/5352570>
7/22/07 12:31 PM Anders Carlsson: Darin checked in a fix for this, revision 24514 as a followup fix to rdar://problem/5298816. We should verify with TOT.