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Date: Fri, 24 Oct 2014 13:32:51 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: musl pthread/tls issue.
* ????????? <jianzhong.huang@...oft.com.cn> [2014-10-24 15:35:46 +0800]:
> The default pthread stacksize is 81920, that's 80k.
>
> I increase the stacksize to 8M and this bug disappear.
it would be nice to know what causes the stack usage in gnome-shell
(dynamic stack allocation can be a vulnerability)
> And about the webkit, the different codebase of webkitgtk had different
> behaviors:
> 2.4.x run but report a exception of RangeError.
> 2.6.x(they call it webkitgtk4) use the same codebase as ewebkit, directly
> segfault.
>
> I guess it's related to the "fastmalloc" of JavaScriptCore.
it seems to be a tcmalloc variant by default, which can go wrong
in many ways so that should be disabled: try -DUSE_SYSTEM_MALLOC
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