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Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input
From: |
Stephane Chazelas |
Subject: |
Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input |
Date: |
Fri, 2 May 2008 16:50:53 +0100 |
User-agent: |
Mutt/1.5.16 (2007-09-19) |
On Fri, May 02, 2008 at 11:27:00PM +0800, jidanni@jidanni.org wrote:
> SC> Try
> SC> sudo env -i SHELLOPTS=xtrace su -p - nobody
> (I don't use sudo)
> uid=0(root) gid=0(root) groups=0(root)
> # env -i SHELLOPTS=xtrace su -p - nobody
> + PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
> + '[' /bin/sh ']'
> + PS1='\u@\h:\w\$ '
> + export PATH
> + umask 022
> nobody@jidanni2:/root$ kill -1 $$
> + kill -1 6215
> # env -i SHELLOPTS=xtrace su -p - nobody
> + PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
> + '[' /bin/sh ']'
> + PS1='\u@\h:\w\$ '
> + export PATH
> + umask 022
> nobody@jidanni2:/root$ logout
> #
>
> Above on my first attempt the shell stayed alive, so I typed kill -1
> $$ (instead of exit, so it would be clear that I typed it, as that is
> something the "magic hand" never uses.) On the second and later
> attempts, some magic hand typed "logout" for me. The magic hand also
> sometimes types "exit"...
[...]
Does that happen straight away or after a delay?
The "logout" thing looks a bit like eof from the terminal.
It could be the "read" being interupted by a signal or something
like that.
strace would probably help then:
sudo env -i strace -vfo /tmp/strace.out /bin/su - nobody
And look at the last read(0 in /tmp/strace.out
It could be worth checking the ulimits as well.
--
Stéphane
Message not available
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input,
Stephane Chazelas <=
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input, jidanni, 2008/05/02
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input, Stephane Chazelas, 2008/05/02
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input, jidanni, 2008/05/03
- Message not available
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input, Stephane Chazelas, 2008/05/04
- Re: [Pkg-shadow-devel] Bug#476519: shell-mode garbles input, jidanni, 2008/05/05