Messages in this thread | | | From | (Måns Rullgård) | Subject | Re: Strange behavior observed w.r.t 'su' command | Date | Fri, 28 Nov 2003 11:47:20 +0100 |
| |
Andreas Schwab <schwab@suse.de> writes:
>> hi, i am not sure if this is a kernel problem or an 'su' related issue, >> but this is what i have observed. Tried on 2.4.20-8 ( RH 9.0 kernel ) and >> latest 2.6.0-test11. >> >> - log in as any normal user. ( on Console.). >> - su - root >> - from root prompt, run 'ps' and check the pid of 'su'. >> - kill -9 <pid of su> >> After the kill command, strangely my keyboard switches to unbuffered mode >> ( a key press is processed immediately ). Also, i alternate between the >> root prompt and the normal user prompt. >> Every key press switches from root prompt to normal user prompt and vice >> versa. Typing 'whoami' at the respective prompts displays 'normal user' >> and 'root' for the respective prompts. > > Nothing unusual, you just have two shells competing with each other on the > terminal. Don't use kill -9 unless you know what you are doing.
It appears that my su exec()s the shell, whereas the redhat and gentoo su fork() and exec().
-- Måns Rullgård mru@kth.se
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |