Subject: Re: bin/34979: -current libc causes boot failure
To: Christos Zoulas <christos@zoulas.com>
From: Scott Ellis <scotte@warped.com>
List: netbsd-bugs
Date: 11/11/2006 18:44:36
Christos Zoulas wrote:
> On Nov 11,  3:58pm, scotte@warped.com (Scott Ellis) wrote:
> -- Subject: Re: bin/34979: -current libc causes boot failure
> 
> | Thanks for the patch, but unfortunately there's no change at all with a 
> | re-built userland.  Enabling syslogd results in the exact same behavior 
> | as w/o this patch.
> | 
> | What additional steps can I take to help debug?
> 
> I did not think so. Can you ktrace it?

I put three ktraces at 
http://intrepid.warped.com/~scotte/visible/syslog_ktrace/ , and noted an 
interesting behavior. The first time I execute syslogd after boot, it 
produces the output shown in syslogd_Uses100PercentCPU.txt, while using 
100% CPU (or close to it).  If I kill syslogd (-9 is the only signal 
that works), it will restart and work perfectly fine, as shown in 
syslogd_1.txt and syslogd_2.txt.

I cannot get the system to hang, as I can when enabling syslogd on boot, 
just use lots and lots of CPU.  This is the behavior that I saw before 
in the Oct 24-ish -current (although the syslogd 100% cpu trick happened 
occasionally, and the initial run at boot didn't seem to cause the problem).

Let me know what else I can provide.  Thanks!

	ScottE