Bug 135366

Summary: Web process crash causes UI process to die with an assertion failure in Connection::exceptionSourceEventHandler
Product: WebKit Reporter: Mark Rowe (bdash) <mrowe>
Component: WebKit2Assignee: Mark Rowe (bdash) <mrowe>
Status: RESOLVED FIXED    
Severity: Normal CC: andersca, commit-queue, sam
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Mark Rowe (bdash) 2014-07-28 16:18:34 PDT
I've been hitting the following assertion several times a day:

    // Now send along the message.
    kern_return_t kr = mach_msg(header, MACH_SEND_MSG, header->msgh_size, 0, MACH_PORT_NULL, MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
    if (kr != KERN_SUCCESS) {
        LOG_ERROR("Failed to send message to real exception port. %s (%x)", mach_error_string(kr), kr);
        ASSERT_NOT_REACHED();
    }

It typically happens after the web process hits an assertion failure of some sort. Having the UI process die when a web process dies interferes with development.
Comment 1 Mark Rowe (bdash) 2014-07-28 16:21:36 PDT
Created attachment 235636 [details]
Patch
Comment 2 WebKit Commit Bot 2014-07-28 17:56:37 PDT
Comment on attachment 235636 [details]
Patch

Clearing flags on attachment: 235636

Committed r171715: <http://trac.webkit.org/changeset/171715>
Comment 3 WebKit Commit Bot 2014-07-28 17:56:39 PDT
All reviewed patches have been landed.  Closing bug.