[BusyBox] RE: busybox using all memory/CPU

[Josh Goebel]

Ok,
	What libc features does "fancy shell prompts" need... after
removing all ash options and adding them one at a time until it broke
this seems to be the culprit... with it disabled no problems
whatsoever.. with it enables cpu/memory disappears... and on my Linux
2.0 system I get a bus error (likely it's running out of RAM)...

	Works fine on both with Fancy Shell prompts disabled... so I've
either found a bug or I've not included something from uclibc needed for
support of this feature (which I want).

Thanks,
Josh

P.S. Sorry for all the messages, hopefully someone else can learn from
these as well.

-----Original Message-----
From: Josh Goebel [mailto:josh at dwgsolutions.com] 
Sent: Wednesday, December 24, 2003 12:38 PM
To: 'busybox at mail.busybox.net'
Subject: RE: busybox using all memory/CPU

I'm finally making progress getting everything compiled here, but one
big problem.

Anytime I try and chroot into my test environment it works if I just run
a busybox command that quickly exits, but if I try and invoke the ash
shell it uses 100% of my CPU and starts going through my memory equally
quickly (100s of megs)... and appears locked up in the window I've
chrooted from...  I kill -9 it and all is back to normal.

Both the stable (0.65 is it?) and unstable (1.00-pre5) versions do this,
so I assume it might have something to do with my uclibc settings or
that fact that I'm compiling against linux 2.0 headers and have 2.4 on
my devel machine.

Would such a difference (of kernel headers) mean the binaries could not
run (even in a chrooted environment?)

Thanks,
Josh

Some output of LD_DEBUG=all chroot build_i386/root/ /bin/sh: (looks like
an infinite loop)

resolve function: getcwd(overflow)
    patched 0x804b9da ==> 0x4003158a @ 0x8099468
(overflow)
resolve function: __errno_location(overflow)
    patched 0x804bb7a ==> 0x4001692c @ 0x80994d0
(overflow)
resolve function: realloc(overflow)
    patched 0x804b69a ==> 0x40031070 @ 0x8099398
(overflow)
resolve function: getcwd(overflow)
    patched 0x804b9da ==> 0x4003158a @ 0x8099468
(overflow)
resolve function: __errno_location(overflow)
    patched 0x804bb7a ==> 0x4001692c @ 0x80994d0
(overflow)
resolve function: realloc(overflow)
    patched 0x804b69a ==> 0x40031070 @ 0x8099398
(overflow)
resolve function: getcwd(overflow)
    patched 0x804b9da ==> 0x4003158a @ 0x8099468
(overflow)