libgmalloc didn't seem to produce anything.
This seems to be a timing issue.
I was able to catch it failing in the debugger.
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00003ff3
0x01040c2c in QString::setLength ()
(gdb) bt
#0 0x01040c2c in QString::setLength ()
#1 0x010414cc in QString::insert ()
#2 0x010d75c8 in khtml::Decoder::decode ()
#3 0x0105c7b8 in KHTMLPart::write ()
#4 0x0022eda8 in -[WebDataSource(WebPrivate) _receivedData:]
(self=0x4da3d20, _cmd=0x2ee0, data=0x4da5590) at /Volumes/Stuff/
Projects/WKOpen/WebKit/WebView.subproj/WebDataSource.m:818
#5 0x0024d564 in -[WebMainResourceLoader addData:] (self=0x4da8450,
_cmd=0x2ee0, data=0x4da5590) at /Volumes/Stuff/Projects/WKOpen/WebKit/
WebView.subproj/WebMainResourceLoader.m:155
#6 0x0022b8e0 in -[WebLoader didReceiveData:lengthReceived:]
(self=0x4da8450, _cmd=0x2ee0, data=0x4da5590, lengthReceived=16371)
at /Volumes/Stuff/Projects/WKOpen/WebKit/WebView.subproj/WebLoader.m:528
#7 0x0024df14 in -[WebMainResourceLoader
didReceiveData:lengthReceived:] (self=0x4da8450, _cmd=0x2ee0,
data=0x4da5590, lengthReceived=0) at /Volumes/Stuff/Projects/WKOpen/
WebKit/WebView.subproj/WebMainResourceLoader.m:366
#8 0x0022bdd8 in -[WebLoader
connection:didReceiveData:lengthReceived:] (self=0x0, _cmd=0x2ee0,
con=0x0, data=0x0, lengthReceived=0) at /Volumes/Stuff/Projects/
WKOpen/WebKit/WebView.subproj/WebLoader.m:631
#9 0x928af7d8 in -[NSURLConnection(NSURLConnectionInternal)
_sendDidReceiveDataCallback] ()
#10 0x928adc4c in -[NSURLConnection(NSURLConnectionInternal)
_sendCallbacks] ()
#11 0x928ada18 in _sendCallbacks ()
#12 0x9074bd2c in __CFRunLoopDoSources0 ()
#13 0x9074b25c in __CFRunLoopRun ()
#14 0x9074acdc in CFRunLoopRunSpecific ()
#15 0x9288c164 in -[NSRunLoop runMode:beforeDate:] ()
#16 0x00002f74 in dumpRenderTree (filename=0x90a19534
"runMode:beforeDate:") at /Volumes/Stuff/Projects/WKOpen2/WebKitTools/
DumpRenderTree/DumpRenderTree.m:247
#17 0x00003274 in main (argc=2, argv=0xbffff504) at /Volumes/Stuff/
Projects/WKOpen2/WebKitTools/DumpRenderTree/DumpRenderTree.m:95
On Jul 7, 2005, at 8:45 AM, Eric Seidel wrote:
Thanks Mark.
One next step is to try running under libgmalloc. That should
catch whatever this is every time on the same test.
I'll try that when I get into work.
-eric
On Jul 7, 2005, at 5:59 AM, Mark Rowe wrote:
On 8/07/2005, at 00:41 , Mark Rowe wrote:
I've spent the last two hours trying to track down which change
causes the test failures + DumpRenderTree crash. As was
mentioned, rolling out the patch for bugs #3882 and #3829 does
not resolve the issue. Rolling out #3826 and #3674 individually
didn't help either. It seemed that removing *both* stopped the
crashing but that may have just been luck as the crashes are
intermittent at best. I'm retesting this scenario now.
It seems I was just lucky... As far as I can tell none of the
four patches have any relation to the failing test + crash. I'm
not sure which other changes have been checked in recently that I
could check, so I'll leave that up to someone else.
Regards,
Mark Rowe
<http://bdash.net.nz/>
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