Hi!
I'm having a very weird crash with run-webkit-tests. I've got two copies of
the entire WebKit tree in my home directory, /Users/ap/WebKit and
/Users/ap/Clean-WebKit. Here's what I get:
1) When run-webkit-tests is executed from WebKit, it crashes on a certain test
(info about the crash below).
2) When it is executed from Clean-WebKit, no crash.
3) If I rename WebKit to WebKit-bad and run from there, no crash.
4) If I rename WebKit-Clean to WebKit and run from there, it crashes.
I have tried clean rebuilds, clean checkout, and deleting
/Library/Caches/com.apple.Xcode.501/SharedPrecompiledHeaders - the result is
always the same, tests running from ~/WebKit crash.
Now to the crash itself :).
Date/Time: 2005-08-19 08:15:54.540 +0400
OS Version: 10.4.2 (Build 8C46)
Report Version: 3
Command: DumpRenderTree
Path: /Users/ap/WebKit/WebKitBuild/Deployment/DumpRenderTree
Parent: perl [334]
Version: ??? (???)
PID: 365
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000feb
Thread 0 Crashed:
0 com.apple.WebCore 0x01041cfc QString::setLength(unsigned) + 112
(KWQString.mm:2618)
1 com.apple.WebCore 0x01041068 QString::insert(unsigned, char
const*, unsigned) + 76 (KWQString.h:607)
2 com.apple.WebCore 0x010fc1c4 khtml::Decoder::decode(char const*,
int) + 484 (KWQString.h:607)
3 com.apple.WebCore 0x0105733c KHTMLPart::write(char const*, int) +
368 (KWQString.h:622)
4 com.apple.WebKit 0x0022df8c -[WebDataSource(WebPrivate)
_receivedData:] + 104 (WebDataSource.m:785)
5 com.apple.WebKit 0x0024b690 -[WebMainResourceLoader addData:] +
84 (WebMainResourceLoader.m:161)
6 com.apple.WebKit 0x0022ae64 -[WebLoader
didReceiveData:lengthReceived:] + 68 (WebLoader.m:530)
7 com.apple.WebKit 0x0024bfdc -[WebMainResourceLoader
didReceiveData:lengthReceived:] + 136 (WebMainResourceLoader.m:373)
8 com.apple.WebKit 0x0022b2fc -[WebLoader
connection:didReceiveData:lengthReceived:] + 60 (WebLoader.m:632)
9 com.apple.Foundation 0x928af538
-[NSURLConnection(NSURLConnectionInternal) _sendDidReceiveDataCallback] + 564
10 com.apple.Foundation 0x928ad9ac
-[NSURLConnection(NSURLConnectionInternal) _sendCallbacks] + 440
11 com.apple.Foundation 0x928ad778 _sendCallbacks + 156
12 com.apple.CoreFoundation 0x9074bd2c __CFRunLoopDoSources0 + 384
13 com.apple.CoreFoundation 0x9074b25c __CFRunLoopRun + 452
14 com.apple.CoreFoundation 0x9074acdc CFRunLoopRunSpecific + 268
15 com.apple.Foundation 0x9288bec4 -[NSRunLoop runMode:beforeDate:] +
172
16 DumpRenderTree 0x00003b94 dumpRenderTree + 448
(DumpRenderTree.m:475)
17 DumpRenderTree 0x00002afc main + 1176 (DumpRenderTree.m:156)
18 DumpRenderTree 0x00001ec4 _start + 344 (crt.c:272)
19 DumpRenderTree 0x00001d68 start + 60
Thread 1:
0 libSystem.B.dylib 0x9000a778 mach_msg_trap + 8
1 libSystem.B.dylib 0x9000a6bc mach_msg + 60
2 com.apple.CoreFoundation 0x9074b3d8 __CFRunLoopRun + 832
3 com.apple.CoreFoundation 0x9074acdc CFRunLoopRunSpecific + 268
4 com.apple.Foundation 0x928a43e0
+[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 264
5 com.apple.Foundation 0x9287cf34 forkThreadForFunction + 108
6 libSystem.B.dylib 0x9002c3d4 _pthread_body + 96
Thread 2:
0 libSystem.B.dylib 0x9000a778 mach_msg_trap + 8
1 libSystem.B.dylib 0x9000a6bc mach_msg + 60
2 com.apple.CoreFoundation 0x9074b3d8 __CFRunLoopRun + 832
3 com.apple.CoreFoundation 0x9074acdc CFRunLoopRunSpecific + 268
4 com.apple.Foundation 0x928a5520 +[NSURLCache _diskCacheSyncLoop:] +
152
5 com.apple.Foundation 0x9287cf34 forkThreadForFunction + 108
6 libSystem.B.dylib 0x9002c3d4 _pthread_body + 96
Thread 3:
0 libSystem.B.dylib 0x9000a778 mach_msg_trap + 8
1 libSystem.B.dylib 0x9000a6bc mach_msg + 60
2 com.apple.CoreFoundation 0x9074b3d8 __CFRunLoopRun + 832
3 com.apple.CoreFoundation 0x9074acdc CFRunLoopRunSpecific + 268
4 com.apple.Foundation 0x9288bec4 -[NSRunLoop runMode:beforeDate:] +
172
5 com.apple.Foundation 0x9288bdfc -[NSRunLoop run] + 76
6 com.apple.WebKit 0x002634dc +[WebFileDatabase _syncLoop:] + 176
(WebFileDatabase.m:291)
7 com.apple.Foundation 0x9287cf34 forkThreadForFunction + 108
8 libSystem.B.dylib 0x9002c3d4 _pthread_body + 96
QString::setLength() crashes because main_thread_malloc() returns a zero.
0x00000feb is the parameter to setLength, so nothing unusual with the
requested size.
I'm running on a dual G4, compiling a deployment build with gcc 3.3. This
has started a few days ago.
- WBR, Alexey Proskuryakov
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