Dom0 = centos 5 (32bit), 4GB Ram
DomU = centos 5 (PV) (32bit)
xen 3.1.2 rc1, compiled using XEN_TARGET_X86_PAE=Y
kernel 2.6.18, modified to load areca card drivers
initrd image created using the following command
mkinitrd -v -f --with=aacraid --with=arcmsr --with=sd_mod --with=scsi_mod
initrd-2.6.18-xen.img 2.6.18-xen
When i issue xm create for a domU which was working earlier i get the
following error
xm create ldap
Using config file "./ldap".
Error: (9, ''Bad file descriptor'')
Log snippet when the error appears
[2007-11-01 01:01:09 4605] ERROR (xmlrpclib2:178) Internal error handling
xend.domain.create
Traceback (most recent call last):
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/util/xmlrpclib2.py",
line 131, in _marshaled_dispatch
response = self._dispatch(method, params)
File "/usr/lib/python2.4/SimpleXMLRPCServer.py", line 406, in
_dispatch
return func(*params)
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/server/XMLRPCServer.py",
line 72, in domain_create
info = XendDomain.instance().domain_create(config)
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomain.py",
line 918, in domain_create
self._refresh()
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomain.py",
line 402, in _refresh
self.domains[domid].update(dom, refresh_shutdown)
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomainInfo.py",
line 2198, in update
self._update_consoles()
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomainInfo.py",
line 792, in _update_consoles
self.console_port = self.readDom(''console/port'')
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomainInfo.py",
line 845, in readDom
return xstransact.Read(self.dompath, *args)
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/xenstore/xstransact.py",
line 298, in Read
return complete(path, lambda t: t.read(*args))
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/xenstore/xstransact.py",
line 352, in complete
t = xstransact(path)
File
"/home/xen/xen-3.1-testing.hg/dist/install/usr/lib/python/xen/xend/xenstore/xstransact.py",
line 21, in __init__
self.transaction = xshandle().transaction_start()
Error: (9, ''Bad file descriptor'')
Config file
kernel = "/boot/vmlinuz-2.6.18-xen"
ramdisk = "/boot/initrd-2.6.18-xen.img"
name = "ldap"
memory = "1024"
disk = [ ''phy:/dev/VolGroup00/ldap,sda1,w'']
root = "/dev/sda1 ro"
vif = [ ''mac=00:16:3e:12:34:a8, bridge=xenbr0'', ]
uuid = "bee5f62b-7193-a454-e37e-a151a5be8f45"
vcpus=7
The above domU was booting up properly so i am guessing its an issue with
the way i have setup xen.
--
regards,
Anand Gupta
I also created a fresh domU using the wiki article located at http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU After this since i have to use lvm, i created a new lvm volume, mounted the file, copied the first partition contents to the lvm volume. Now when i try to boot the lvm volume, it gives me the below error mount: could not find filesystem ''/dev/root''> Setting up other filesystems. > Setting up new root fs > setuproot: moving /dev failed: No such file or directory > no fstab.sys, mounting internal defaults > setuproot: error mounting /proc: No such file or directory > setuproot: error mounting /sys: No such file or directory > Switching to new root and running init. > unmounting old /dev > unmounting old /proc > unmounting old /sys > switchroot: mount failed: No such file or directory > Kernel panic - not syncing: Attempted to kill init! >Here is the config file name = "new2" memory = "512" disk = [ ''phy:/dev/VolGroup00/new2,xvda1,w'',] vif = [ ''bridge=xenbr0'', ] bootloader="/usr/bin/pygrub" vcpus=7 extra="single" on_reboot = ''restart'' on_crash = ''restart'' In the above i tried both xvda and xvda1, they give the same error. /etc/fstab inside the lvm volume /dev/xvda1 / ext3 defaults 1 1 devpts /dev/pts devpts gid=5,mode=620 0 0 tmpfs /dev/shm tmpfs defaults 0 0 proc /proc proc defaults 0 0 sysfs /sys sysfs defaults 0 0 Any pointers / ideas on how to fix the problems will be appreciated. -- regards, Anand Gupta
Hmm.. somehow i am getting this now. Haven''t changed any config of xen, and i am in /root, so why it should show that message. xm list Error: (9, ''Bad file descriptor'') Usage: xm list [options] [Domain, ...] List information about all/some domains. -l, --long Output all VM details in SXP --label Include security labels --state=<state> Select only VMs with the specified state -- regards, Anand Gupta
Just did a reinstall of xen by running install.sh inside dist directory, and rebooted dom0, things turned back to normal xm list Name ID Mem VCPUs State Time(s) Domain-0 0 3011 8 r----- 134.9 Strange, but must be something i did... Now if the other problem can get resolved, i can put this box aside and concentrate on other servers :p On 11/1/07, Anand Gupta <xen.mails@gmail.com> wrote:> > Hmm.. somehow i am getting this now. Haven''t changed any config of xen, > and i am in /root, so why it should show that message. > > xm list > Error: (9, ''Bad file descriptor'') > Usage: xm list [options] [Domain, ...] > > List information about all/some domains. > -l, --long Output all VM details in > SXP > --label Include security > labels > --state=<state> Select only VMs with the specified > state > > > -- > regards, > > Anand Gupta-- regards, Anand Gupta