[Webkit-unassigned] [Bug 141934] New: [Mac][WK2] ASSERTION FAILED: m_sendPort in IPC::Connection::open()
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Feb 23 16:41:31 PST 2015
https://bugs.webkit.org/show_bug.cgi?id=141934
Bug ID: 141934
Summary: [Mac][WK2] ASSERTION FAILED: m_sendPort in
IPC::Connection::open()
Classification: Unclassified
Product: WebKit
Version: 528+ (Nightly build)
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: WebKit2
Assignee: webkit-unassigned at lists.webkit.org
Reporter: cdumez at apple.com
CC: andersca at apple.com, benjamin at webkit.org,
sam at webkit.org
I recently hit the following assertion while navigating:
ASSERTION FAILED: m_sendPort
/Volumes/Data/cdumez/WebKit/OpenSource/Source/WebKit2/Platform/IPC/mac/ConnectionMac.mm(182) : bool IPC::Connection::open()
1 0x115764cb0 WTFCrash
2 0x111f263ba IPC::Connection::open()
3 0x111ef2344 WebKit::ChildProcess::initialize(WebKit::ChildProcessInitializationParameters const&)
4 0x11240ead9 void WebKit::XPCServiceInitializer<WebKit::WebProcess, WebKit::XPCServiceInitializerDelegate>(WTF::OSObjectPtr<_xpc_connection_s*>, void*)
5 0x11240e8a1 WebContentServiceInitializer
6 0x10ad6868d invocation function for block in WebKit::XPCServiceEventHandler(NSObject<OS_xpc_object>*)
7 0x7fff8a388d51 _xpc_connection_call_event_handler
8 0x7fff8a3888cf _xpc_connection_mach_event
9 0x7fff90dd20f8 _dispatch_client_callout4
10 0x7fff90dd31a3 _dispatch_mach_msg_invoke
11 0x7fff90dd0154 _dispatch_queue_drain
12 0x7fff90dd1a10 _dispatch_mach_invoke
13 0x7fff90dd8b02 _dispatch_main_queue_callback_4CF
14 0x7fff8f93d939 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
15 0x7fff8f8f8d8f __CFRunLoopRun
16 0x7fff8f8f82d8 CFRunLoopRunSpecific
17 0x7fff8b23663f RunCurrentEventLoopInMode
18 0x7fff8b2363ba ReceiveNextEventCommon
19 0x7fff8b2361fb _BlockUntilNextEventMatchingListInModeWithFilter
20 0x7fff864abe3d _DPSNextEvent
21 0x7fff864ab440 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
22 0x7fff864a1133 -[NSApplication run]
23 0x7fff8641d814 NSApplicationMain
24 0x7fff8a398958 _xpc_objc_main
25 0x7fff8a39a060 _parse_sysctl_once
26 0x10ad68185 main
27 0x7fff8f4495c9 start
I had a very quick look and the culprit might be XPCServiceInitializerDelegate::getConnectionIdentifier() which returns true unconditionally although xpc_dictionary_copy_mach_send() can return MACH_PORT_NULL. I am not familiar with this code though.
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