Bug 204177

Summary: [iOS] Crash under WebProcess::processTaskStateDidChange(WebKit::ProcessTaskStateObserver::TaskState)
Product: WebKit Reporter: Chris Dumez <cdumez>
Component: WebKit2Assignee: Chris Dumez <cdumez>
Status: RESOLVED FIXED    
Severity: Normal CC: achristensen, commit-queue, david_quesada, ggaren, jer.noble, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Chris Dumez 2019-11-13 16:16:29 PST 
Crash under WebProcess::processTaskStateDidChange(WebKit::ProcessTaskStateObserver::TaskState):
Thread 2 name:  Dispatch queue: RBSProcessMonitor
Thread 2 Crashed:
0   WebKit                          0x00000001011bc19c IPC::Connection::remoteProcessID() const + 0
1   WebKit                          0x00000001014e6a00 WebKit::WebProcess::processTaskStateDidChange(WebKit::ProcessTaskStateObserver::TaskState) + 288
2   WebKit                          0x000000010118b43c WebKit::ProcessTaskStateObserver::setTaskState(WebKit::ProcessTaskStateObserver::TaskState) + 120
3   WebKit                          0x000000010118af5c -[WKProcessTaskStateObserverDelegate process:taskStateDidChange:] + 172
4   AssertionServices               0x0000000187d0789c __36-[BKSProcess _lock_configureMonitor]_block_invoke_2 + 432 (AssertionServices/BKSProcess.m:284)
5   RunningBoardServices            0x0000000186116c20 -[RBSProcessMonitor _handleProcessStateChange:] + 732 (RunningBoardServices/RBSProcessMonitor.m:275)
6   RunningBoardServices            0x000000018612b5d0 __65-[RBSConnection async_observedProcessStatesDidChange:completion:]_block_invoke + 176 (RunningBoardServices/RBSConnection.m:911)
7   libdispatch.dylib               0x0000000183291d7c _dispatch_block_async_invoke2 + 104 (src/queue.c:525)
8   libdispatch.dylib               0x00000001832ae514 _dispatch_client_callout + 16 (src/object.m:495)
9   libdispatch.dylib               0x000000018328baec _dispatch_lane_serial_drain$VARIANT$armv81 + 564 (src/inline_internal.h:2484)
10  libdispatch.dylib               0x000000018328c534 _dispatch_lane_invoke$VARIANT$armv81 + 448 (src/queue.c:3863)
11  libdispatch.dylib               0x000000018328d598 _dispatch_workloop_invoke$VARIANT$armv81 + 1544 (src/inline_internal.h:2525)
12  libdispatch.dylib               0x00000001832957fc _dispatch_workloop_worker_thread + 580 (src/queue.c:6445)
13  libsystem_pthread.dylib         0x00000001832feb74 _pthread_wqthread + 276 (src/pthread.c:2351)
14  libsystem_pthread.dylib         0x0000000183301740 start_wqthread + 8
Comment 1 Chris Dumez 2019-11-13 16:23:55 PST 
Created attachment 383511 [details]
Patch
Comment 2 Jer Noble 2019-11-14 13:21:08 PST 
Comment on attachment 383511 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=383511&action=review

> Source/WebKit/WebProcess/WebProcess.cpp:224
> +    ASSERT_NOT_REACHED();

LOL.
Comment 3 WebKit Commit Bot 2019-11-14 14:18:22 PST 
Comment on attachment 383511 [details]
Patch

Clearing flags on attachment: 383511

Committed r252466: <https://trac.webkit.org/changeset/252466>
Comment 4 WebKit Commit Bot 2019-11-14 14:18:24 PST 
All reviewed patches have been landed.  Closing bug.
Comment 5 Radar WebKit Bug Importer 2019-11-14 14:19:18 PST 
<rdar://problem/57204146>