[Webkit-unassigned] [Bug 42756] JIT requires VM overcommit (particularly on x86-64), Linux does not by default support this without swap?

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jan 12 11:56:54 PST 2011


Gavin Barraclough <barraclough at apple.com> changed:

           What    |Removed                     |Added
            Summary|Crash in                    |JIT requires VM overcommit
                   |privateCompileCTIMachineTra |(particularly on x86-64),
                   |mpolines() on Intel Atom    |Linux does not by default
                   |D510 processor              |support this without swap?
                 CC|                            |barraclough at apple.com

--- Comment #24 from Gavin Barraclough <barraclough at apple.com>  2011-01-12 11:56:54 PST ---
Interesting comment in redhat's bug tracker: https://bugzilla.redhat.com/show_bug.cgi?id=648319

    Pete Zaitcev 2010-12-22 20:03:51 EST
        BTW, an easy workaround if you don't want to use my RPM from comment #31 is:
            echo 1 > /proc/sys/vm/overcommit_memory
        Well, or just buy a couple gigs of RAM.

A more graceful failure for WebKit might be to read '/proc/sys/vm/overcommit_memory' on startup, and if this is not enabled then exit with an error message indicating that this is required.

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