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Message-ID: <5A08C239.4070003@adelielinux.org>
Date: Sun, 12 Nov 2017 15:50:49 -0600
From: "A. Wilcox" <awilfox@...lielinux.org>
To: musl@...ts.openwall.com
Subject: Re: diffutils crash in malloc
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On 12/11/17 15:46, Tobias Koch wrote:
> Hi,
>
> when I switched from musl 1.1.16 to 1.1.17 (and now 1.1.18) diff
> started to crash. The gdb backtrace shows, that this happens
> during memory allocation:
>
> build@...tstrap(mipsel):~$ gdb /tools/bin/diff
[snip]
I notice you are using mipsel. Do you see this on any other
architectures? diffutils compiled against 1.1.16 runs fine against
1.1.17 and 1.1.18 here on x86_64 (64-bit, LE) and ppc (32-bit, BE).
So it seems this may be a MIPS issue.
> Here a and b are empty files, but this happens with other input,
> as well. diffutils' xmalloc looks fairly inconspicuous to me:
>
> I understand this may very well be a problem in diff and not musl.
> But this is the exact same version of diffutils included with
> Debian Stretch and running the same under Valgrind compiled against
> glibc shows no problems. My wisdom ends here. Any clues how I can
> get to the bottom of this?
>
> Tobias
>
Are you using valgrind and glibc on the same hardware (mipsel)?
Best,
- --arw
- --
A. Wilcox (awilfox)
Project Lead, Adélie Linux
http://adelielinux.org
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