From: Jeff Dike <jdike@ka...> - 2002-08-16 13:06:20
> Tom wrote:
> > looks like it. I just tried on a different machine (2.4.10, standard
> > suse kernel) and it breaks up with a message "I'm tracing myself and I
> > can't get out" - does that help in any way?
> I don't think so, but I'm sure Jeff would love a backtrace of that.
Not really. I've got that fixed here. Apply this trivial patch:
--- ../../cvs/linux/arch/um/kernel/trap_user.c Fri Aug 9 14:39:58 2002
+++ arch/um/kernel/trap_user.c Wed Aug 14 11:12:53 2002
@@ -508,14 +508,11 @@
extern int jail_timer_off;
void alarm_handler(int sig, struct sigcontext sc)
user = user_context(SC_SP(&sc));
if(!user && !kern_timer_on) return;
If that fails to fix it, then I'm interested in stack traces :-)
> I personally have never managed to get jail working here on about five
> different boxes, running different kernels, because of this.
I'm having no problems with jail mode on 2.4.18. I just tried it on
2.4.19 and I get that panic. Stay tuned...
From: Jeff Dike <jdike@ka...> - 2002-08-19 16:59:52
> there does seem to be still another bug, though. it hangs when it
> tries to bring up the eth0 interface.
usermode:~# ifconfig eth0 192.168.0.253 up
stracing it does this:
access("/proc/sys/net/ash", R_OK) = -1 ENOENT (No such file or directory)
at which point it hangs. Offhand, neither of these seems right.
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