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Sender: Guenter Roeck <groeck7@gmail.com>
Date:   Tue, 24 May 2022 15:06:46 -0700
From:   Guenter Roeck <linux@roeck-us.net>
To:     Guo Ren <guoren@kernel.org>
Cc:     Palmer Dabbelt <palmer@dabbelt.com>, Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Christoph Hellwig <hch@lst.de>,
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        Heiko =?iso-8859-1?Q?St=FCbner?= <heiko@sntech.de>,
        Guo Ren <guoren@linux.alibaba.com>
Subject: Re: [PATCH V9 20/20] riscv: compat: Add COMPAT Kbuild skeletal
 support
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On Wed, May 25, 2022 at 01:46:38AM +0800, Guo Ren wrote:
[ ... ]

> > The problem is come from "__dls3's vdso decode part in musl's
> > ldso/dynlink.c". The ehdr->e_phnum & ehdr->e_phentsize are wrong.
> >
> > I think the root cause is from musl's implementation with the wrong
> > elf parser. I would fix that soon.
> Not elf parser, it's "aux vector just past environ[]". I think I could
> solve this, but anyone who could help dig in is welcome.
> 

I am not sure I understand what you are saying here. Point is that my
root file system, generated with musl a year or so ago, crashes with
your patch set applied. That is a regression, even if there is a bug
in musl.

Guenter