Bug 146794

Summary: Excessive memory use loading bugs on bugzilla.redhat.com
Product: WebKit Reporter: Michael Catanzaro <mcatanzaro>
Component: WebCore Misc.Assignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: mcatanzaro, zan
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: PC   
OS: Linux   
See Also: https://bugs.webkit.org/show_bug.cgi?id=146793
Attachments:
Description Flags
backtrace none

Description Michael Catanzaro 2015-07-09 10:47:24 PDT 
Created attachment 256490 [details]
backtrace

Open a bunch of bugs on Red Hat Bugzilla in new tabs. [1] If you open ~20 bugs, at least one (usually about three for me) should run out of control, allocating memory until your computer begins to swap excessively. Mine hangs for an hour, forcing me to power off. This happens to me multiple times per day. I've found that runaway web processes reach around 5 GiB before they bring down my computer.

The issue likely has something to do with the huge combo box with >10000 elements, but I don't know why it does not occur reliably.

I've attached a backtrace I took after attaching to a runaway process. It's probably the same issue that was discussed in https://bugs.webkit.org/show_bug.cgi?id=126122
Comment 1 Zan Dobersek 2015-07-09 13:21:34 PDT 
Seems very related to bug #16450.
Comment 2 Michael Catanzaro 2015-07-09 13:54:46 PDT 

*** This bug has been marked as a duplicate of bug 16450 ***