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Date: Tue, 12 Feb 2019 13:48:49 -0500
From: Rich Felker <dalias@...c.org>
To: Alexey Izbyshev <izbyshev@...ras.ru>
Cc: musl@...ts.openwall.com
Subject: Re: __synccall: deadlock and reliance on racy /proc/self/task
On Sun, Feb 03, 2019 at 12:40:39AM +0300, Alexey Izbyshev wrote:
> Hello!
>
> I've discovered that setuid() deadlocks on a simple stress test
> (attached: test-setuid.c) that creates threads concurrently with
> setuid(). (Tested on 1.1.21 on x86_64, kernel 4.15.x and 4.4.x). The
> gdb output:
FYI I just posted the start of a new thread describing the possible
thread list design:
https://www.openwall.com/lists/musl/2019/02/12/14
If you want to reply into it the message-id for replies is,
Message-ID: <20190212182625.GA24199@...ghtrain.aerifal.cx>
(still wish the openwall archive showed those...)
Rich
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