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Date: Wed, 27 Sep 2006 13:21:17 +0200
From: Divacky Roman <xdivac02@stud.fit.vutbr.cz>
To: Jung-uk Kim <jkim@freebsd.org>
Message-ID: <20060927112117.GA69141@stud.fit.vutbr.cz>
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Subject: Re: linuxulator on -CURRENT
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On Tue, Sep 26, 2006 at 05:33:44PM -0400, Jung-uk Kim wrote:
> I was little annoyed by linuxulator breakage on amd64, which fails to
> run Acrobat Reader.  (Well, actually it's not Acrobat's fault.  It's
> just that wrapper is failing.  If you run 'sh /usr/X11R6/bin/acroread'
> instead, it runs okay.)  All seem to boil down to one problem:
> 
> %cat test.sh
> #!/usr/compat/linux/bin/sh
> bar=`true`
> foo=`false`
> %sh -x test.sh
> + true
> + bar=
> + false
> + foo=
> %/compat/linux/bin/sh -x test.sh
> ++ true
> Segmentation fault (core dumped)
> 
> linux_kdump shows this:
> 
>  16618 bash     PSIG  SIGCHLD caught handler=0x807871f mask=0x0 code=0x0
>  16618 bash     CALL  linux_waitpid(0xffffffff,0xffffcc7c,0x1)
>  16618 bash     RET   linux_waitpid 16619/0x40eb
>  16618 bash     CALL  linux_waitpid(0xffffffff,0xffffcc7c,0x1)
>  16618 bash     RET   linux_waitpid -1 errno 10 No child processes
>  16618 bash     PSIG  SIGSEGV SIG_DFL
>  16618 bash     NAMI  "bash.core"

1) arent true and false bash builtins?

2) can you compile it with -DDEBUG and show us the trace.. I wonder why the
child dies. and the trace could show it.

thnx

roman