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[Weechat-dev] [bug #39090] attempt to malloc() value close to 2^64 when

From: Joel Taylor
Subject: [Weechat-dev] [bug #39090] attempt to malloc() value close to 2^64 when scrolling with mouse
Date: Tue, 28 May 2013 02:56:06 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.93 Safari/537.36


                 Summary: attempt to malloc() value close to 2^64 when
scrolling with mouse
                 Project: WeeChat
            Submitted by: otters
            Submitted on: Tue 28 May 2013 02:56:05 AM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 0.4.1
                IRC nick: otters



When scrolling up in a buffer using my mouse:

weechat-curses(1196) malloc: *** mmap(size=18446744073690892192) failed (error
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug

gets dumped into the current display (screenshot: http://puu.sh/32IKt.png). If
I force weechat to redraw, it goes away. It doesn't look like anything
sinister is happening when this error occurs: weechat functions properly and
memory usage looks fine.

Pretty sure it's happening when the top of the userlist the client received
when I joined passes the halfway point in the current buffer.

The error happens in all the rooms I'm in with more than about 200 users,
across multiple networks.


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