RESOLVED FIXED 250133
REGRESSION (258031@main): Occasional crashes under WTF::Detail::CallableWrapper<WebCore::ThreadedScrollingTree::deferWheelEventTestCompletionForReason() 
https://bugs.webkit.org/show_bug.cgi?id=250133
Summary REGRESSION (258031@main): Occasional crashes under WTF::Detail::CallableWrapp...
Simon Fraser (smfr)
Reported 2023-01-05 10:00:36 PST
Running a recent build with 258031@main, I see rare crashes when closing tabs: Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000380 Exception Codes: 0x0000000000000001, 0x0000000000000380 Termination Reason: Namespace SIGNAL, Code 11 Segmentation fault: 11 Terminating Process: exc handler [40921] VM Region Info: 0x380 is not in any region. Bytes before following region: 140737487592576 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL UNUSED SPACE AT START ---> shared memory 7ffffff46000-7ffffff47000 [ 4K] r-x/r-x SM=SHM Application Specific Information: Bundle controller class: BrowserBundleController Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 WebCore 0x66db1572e WTF::Detail::CallableWrapper<WebCore::ThreadedScrollingTree::deferWheelEventTestCompletionForReason(unsigned long long, WebCore::WheelEventTestMonitor::DeferReason)::$_20, void>::call() + 14 1 JavaScriptCore 0x660c83f3f WTF::RunLoop::performWork() + 431 2 JavaScriptCore 0x660c84a1a WTF::RunLoop::performWork(void*) + 26 3 CoreFoundation 0x7ff81aa52b78 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 4 CoreFoundation 0x7ff81aa52b27 __CFRunLoopDoSource0 + 157 5 CoreFoundation 0x7ff81aa52901 __CFRunLoopDoSources0 + 212 6 CoreFoundation 0x7ff81aa5157b __CFRunLoopRun + 929 7 CoreFoundation 0x7ff81aa50b60 CFRunLoopRunSpecific + 560 8 Foundation 0x7ff81b8ad02a -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 216 9 Foundation 0x7ff81b92fc3c -[NSRunLoop(NSRunLoop) run] + 76 10 libxpc.dylib 0x7ff81a6ecf4b _xpc_objc_main + 773 11 libxpc.dylib 0x7ff81a6ec963 xpc_main + 96 12 WebKit 0x6630fdd26 WebKit::XPCServiceMain(int, char const**) + 276 13 dyld 0x7ff81a644310 start + 2432
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2023-01-05 10:00:57 PST
<rdar://problem/103918112>
Simon Fraser (smfr)
Comment 2 2023-01-05 10:03:00 PST
Pull request: https://github.com/WebKit/WebKit/pull/8238
Simon Fraser (smfr)
Comment 3 2023-01-06 13:50:53 PST
*** Bug 250226 has been marked as a duplicate of this bug. ***
EWS
Comment 4 2023-01-06 16:41:36 PST
Committed 258581@main (8f60a59627c6): <https://commits.webkit.org/258581@main> Reviewed commits have been landed. Closing PR #8238 and removing active labels.
Note You need to log in before you can comment on or make changes to this bug.