[XenPPC] David M Daly is out of the office.

2007-09-10 Thread David M Daly

I will be out of the office starting  09/06/2007 and will not return until
09/13/2007.

I will respond to your message when I return.


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Re: [XenPPC] Question about netbooting with initrd/initramfs

2007-01-29 Thread David M Daly
[EMAIL PROTECTED] wrote on 01/27/2007 11:02:03 PM:

 On Thu, Jan 25, 2007 at 04:39:39PM -0500, David M Daly wrote:
  I've been having some trouble netbooting linux on a JS21 with an 
initramfs
 
 Getting a builtin initramfs to work on PPC is tricky.  The only way I
 have found to do it is a fragile two-stage process. 
 

Amos, thanks for the recipes. I've been able to get some initramfs 
functionality working using them, and I was able to netboot it. 

 I assume that you want to build an initramfs necessary and sufficient to
 run xend and launch a domU, so in the following I describe one technique

I want to do two things with the initramfs:
1. Run xend as you suggest
2. Boot a utility image to set some things up for a later boot (flash 
SLOF, configure HBA/SAN settings). This does not require xend running. 

I'll post a followup if I get xend working from an initramfs. 

Thanks again. 

David Daly
Research Staff Member
32-003 IBM T.J. Watson Research Center
Yorktown Heights, NY, 10958
(914) 945-1845, T/L 862-1845

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[XenPPC] Crash with ssh

2006-11-27 Thread David M Daly
I got the following error this morning from the console on one of our 
JS21s. I had a program that was supposed to ssh into the blade and reboot 
it after shutting down GPFS. I don't think it did any of the gpfs shutdown 
before crashing. Here is the error message. I saw it because I happened to 
be on the SOL console ( I wouldn't normally be). This is the first time 
I'm noticing this. I will post again if I see more errors of this kind. 

cso85:/ # cpu 0x2: Vector: 700 (Program Check) at [c0017b5a7340]
pc: c00f62bc: .clear_inode+0x3c/0x120
lr: c00f62b4: .clear_inode+0x34/0x120
sp: c0017b5a75c0
   msr: 90029032
  current = 0xc0002facc540
  paca= 0xc05ae600
pid   = 17947, comm = umount
kernel BUG in clear_inode at 
/root/xen-maria-latest/linux/linux-xen-ppc/fs/inode.c:251!
enter ? for help
2:mon
2:mon

This is built from Maria's tree on 11-9. 

David Daly
Research Staff Member
32-003 IBM T.J. Watson Research Center
Yorktown Heights, NY, 10958
(914) 945-1845, T/L 862-1845___
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Re: [XenPPC] xend start error

2006-10-23 Thread David M Daly

Hollis,

Your comment on upgrading kernel with
Xen seems to be the key. I tried Maria's tree for linux and xen tree and
xend start; xm list doesn't give an error message. 

David Daly
Research Staff Member
32-003 IBM T.J. Watson Research Center
Yorktown Heights, NY, 10958
(914) 945-1845, T/L 862-1845





[EMAIL PROTECTED]

10/23/2006 06:19 PM




To
Hao Yu/Watson/[EMAIL PROTECTED]


cc
Xen-ppc-devel@lists.xensource.com, Edi
Shmueli/Watson/[EMAIL PROTECTED], David M Daly/Watson/[EMAIL PROTECTED], Doron Shiloach/Watson/[EMAIL PROTECTED]


Subject
Re: [XenPPC] xend start error








On Fri, 2006-10-20 at 11:04 -0400, Hao Yu wrote:
 Hi ,
 
 On our js21 blade running xen, we encountered a problem.
 
 What we did:
 cso83:/etc/xen # xend start
 cso83:/etc/xen # xm list
 Error: Error connecting to xend: No such file or directory. Is
xend
 running?
 
 cso83:/etc/xen # tail -25 /var/log/xen/xend.log
 Error: (22, 'Invalid argument')
 [2006-10-20 11:03:05 xend 8097] INFO (SrvDaemon:190) Xend stopped
due to
 signal 15.
 [2006-10-20 11:03:07 xend 8116] INFO (SrvDaemon:283) Xend Daemon started
 [2006-10-20 11:03:07 xend 8116] INFO (SrvDaemon:287) Xend changeset:
Wed
 Oct 11 13:01:31 2006 -0400 12202:e7cb3aefc233.
 [2006-10-20 11:03:07 xend 8116] ERROR (SrvDaemon:297) Exception starting
 xend ((22, 'Invalid argument'))
 Traceback (most recent call last):
  File //usr/lib/python/xen/xend/server/SrvDaemon.py,
line 291, in run
   servers = SrvServer.create()
  File //usr/lib/python/xen/xend/server/SrvServer.py,
line 108, in create
   root.putChild('xend', SrvRoot())
  File //usr/lib/python/xen/xend/server/SrvRoot.py,
line 40, in __init__
   self.get(name)
  File //usr/lib/python/xen/web/SrvDir.py, line 82,
in get
   val = val.getobj()
  File //usr/lib/python/xen/web/SrvDir.py, line 52,
in getobj
   self.obj = klassobj()
  File //usr/lib/python/xen/xend/server/SrvDomainDir.py,
line 39, in __init__
   self.xd = XendDomain.instance()
  File //usr/lib/python/xen/xend/XendDomain.py, line
636, in instance
   inst.init()
  File //usr/lib/python/xen/xend/XendDomain.py, line
76, in init
   self._add_domain(
  File //usr/lib/python/xen/xend/XendDomain.py, line
139, in xen_domains
   domlist = xc.domain_getinfo()
 Error: (22, 'Invalid argument')
 
 
 We wonder what the problem could be?

Doesn't look like there's much in the domctl path that returns EINVAL.

Did you recently upgrade Xen? If so, make sure you install a newer
kernel and tools.

Do you see any errors when you run 'dmesg' in Linux?

-- 
Hollis Blanchard
IBM Linux Technology Center


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[XenPPC] Xen on JS21 - Dom0 rootfs on SAN

2006-09-25 Thread David M Daly

I consistently get an error booting
Dom0 from a SAN on JS21. I'm using xen_maple_defconfig + QLA2xxx device
driver. 

With an nfsroot boot argument passed
in, the system boots fine. 
With a root=/dev/nfs changed to root=/dev/sdc1
(a lun on the SAN), it mounts the root filesystem, and then fails with
the following message:

kjournald starting. Commit interval
5 seconds
EXT3-fs: mounted filesystem with ordered
data mode.
VFS: Mounted root (ext3 filesystem)
readonly.
Freeing unused kernel memory: 244k freed
/bin/bash: /lib/libdl.so.2: version
`' not found (required by /bin/bash)
/bin/bash: /lib/libdl.so.2: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
/bin/bash: /lib/power4/libc.so.6: version
`' not found (required by /bin/bash)
Kernel panic - not syncing: Attempted
to kill init!
0Rebooting in 180 seconds..Connection
closed by foreign host.

The two root filesystems are basically
identical, and I can boot and mount the SAN based filesystem as root for
a linux kernel (no Xen). 

This can be repeated on my test blade
cso86 (chassis 4 blade 6). I am using yaboot, and the failing configuration
is target cxeny2s. 

David Daly
Research Staff Member
32-003 IBM T.J. Watson Research Center
Yorktown Heights, NY, 10958
(914) 945-1845, T/L 862-1845___
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