Showstopper ? Userland prozesses showing up as kernelprocesses with AMD opterons ?

[Dan Nelson]

In the last episode (Oct 19), Martin Blapp said:
> Hi, I have some strange problems here with a AMD box in intel compat
> mode. An upgrade to 5.3 RC1 did not help at all and still shows the
> problems.
> 
> Working box, same kernel and userland as mx3:
> ---------------------------------------------
> 
> mx2# ps -auxwww | grep rbl
> bind     703  2.2  0.8 18612 16280  ??  Ss   15Sep04  46:32.74 rbldnsd -p /var/run/rbldnsd.pid -r /docsis/etc/rbldnsd -f -u bind:rbldns -b 127.0.0.2 -c 5 [...]
> 
> Box with strange symptoms:
> --------------------------
> 
> mx3# ps -auxwww | grep rbl
> bind     952  0.0  0.8 18536 17660  ??  Ss   10:33AM   0:01.18 [rbldnsd]
> 
> Why rbldnsd shows up as a kernel process ? And there are even other
> procs showing up as kernel procs with missing cmdline ...

What are you seeing that identifies it as a kernel process?  The only
way I know of determining that from ps is "ps axlo flags", and looking
for processes with the 0x200 bit set.

> clamav  1568  0.0  1.8 37592 37008  ??  I     7:00PM   0:01.65 [mimedefang-multiple]
> clamav  1798  0.0  1.8 37592 37008  ??  I     7:00PM   0:00.00 [mimedefang-multiple]
> 
> All cmdline args are gone. Any thoughts ?

ps or libkvm out of sync with kernel?  kern.ps_arg_cache_limit set to 0
for some reason?
 
-- 
	Dan Nelson
	dnelson at allantgroup.com