error: exceptions.OSError ... VM test restarting too fast

[Michael Dexter <dexter%ambidexter.com@localhost>]

Hello all,

I set up a Xen 3.0/NetBSD 4.0 system with a NetBSD 4.0 release and 
automatically-retrieved packages and received the errors below.

As the system has 4GB of RAM, 3320M in reality, This post may shed some 
light on the situation:

> > I've had issues on the 2950 with 4G RAM. I had to restrict the memory
> > to about 3GB via xen boot line (I think it's mem=3092M, or something
> > like that) to have domUs working. I assumed it was an issue with the
> > 2950's bios, because I didn't have this problem with a supermicro
> > server with also 4GB RAM, and the same CPUs.
>
> Yay, thanks ! mem=3092M solved it, indeed. But the question is: why
> is -current DOMU kernel working ?

Can mem=3092M be added to menu.lst? If so where? (xen line or netbsd line?)

Else, does this appear to be a different issue entirely?

Thanks,

Michael.



Unexpected error: exceptions.OSError

Please report to xen-devel%lists.xensource.com@localhost
Traceback (most recent call last):
  File "/usr/pkg/sbin/xm", line 10, in ?
    main.main(sys.argv)
  File "/usr/pkg/lib/python2.4/site-packages/xen/xm/main.py", line 
2500, in main
    _, rc = _run_cmd(cmd, cmd_name, args)
  File "/usr/pkg/lib/python2.4/site-packages/xen/xm/main.py", line 
2524, in _run_cmd
    return True, cmd(args)
  File "<string>", line 1, in <lambda>
  File "/usr/pkg/lib/python2.4/site-packages/xen/xm/main.py", line 
1302, in xm_importcommand
    cmd.main([command] + args)
  File "/usr/pkg/lib/python2.4/site-packages/xen/xm/create.py", line 
1293, in main
    do_console(sxp.child_value(config, 'name', -1))
  File "/usr/pkg/lib/python2.4/site-packages/xen/xm/create.py", line 
1318, in do_console
    (p, rv) = os.waitpid(cpid, os.WNOHANG)
OSError: [Errno 10] No child processes



/var/log/xen/xend.log

[2008-07-10 21:10:20 103] WARNING (XendDomainInfo:1154) Domain has 
crashed: name=test id=8.
[2008-07-10 21:10:20 103] ERROR (XendDomainInfo:1284) VM test restarting 
too fast (0.898140 seconds since the last restart).  Refusing to restart 
to avoid loops.
[2008-07-10 21:10:20 103] DEBUG (XendDomainInfo:1753) 
XendDomainInfo.destroy: domid=8


xm dmesg

(XEN) traps.c:403:d2 Unhandled general protection fault fault/trap [#13] 
in doma
in 2 on VCPU 0 [ec=0000]
(XEN) domain_crash_sync called from entry.S (ff16699e)
(XEN) Domain 2 (vcpu#0) crashed on cpu#1:
(XEN) ----[ Xen-3.1.2  x86_32  debug=n  Not tainted ]----
(XEN) CPU:    1
(XEN) EIP:    e019:[<c0394069>]
(XEN) EFLAGS: 00000246   CONTEXT: guest
(XEN) eax: ffffffff   ebx: c6c12003   ecx: c6c12000   edx: 00000000
(XEN) esi: 00000177   edi: c0571000   ebp: c043c9d4   esp: c043c998
(XEN) cr0: 8005003b   cr4: 000006d0   cr3: c6c11000   cr2: 00000000
(XEN) ds: e021   es: e021   fs: 0000   gs: 0000   ss: e021   cs: e019
(XEN) Guest stack trace from esp=c043c998: