Re: [Xen-devel] Help on domain creation

[Ning Wu <ningwu@xxxxxxxxxxxxxx>]

Hi,

It is caused by the memory parameter. I lowered the domain1 memory to 32M
and it seems succeeded now. I haven't been able to connect to it. But
that's a different problem. When I try to create domain2 with 16384k, the
problem appears again.

This is the memory parameters I use:
My total physical mem = 128M
domain 0 = 64M
domain 1 = 32M

I knew I can't use 100% of physical memory. Learned that a few days ago
when creating domain0. So I choose to create domain 2 with 16M, and it failed.

64 + 32 + 16 = 112 < 128

It should let me create it. Is there a bug?

[root@oscan18 root]# xenctl script -f/etc/xen-mynewdom
Domain defaults:
   name            XenoLinux2
   size            16384
   vifs            1
   domainImage     /boot/xenolinux.gz
   domainInitRD    null
   rootDevice      /dev/hda5
   rootArgs        rw
   usrDevice       null
   NWIP            169.254.1.0+
   NWGW            169.254.1.0
   NWMask          255.255.0.0
   MaxDomainNumber 1000
   NWNFSServer     169.254.1.0
   NWNFSRoot       null
   XIToolsDir      /usr/local/bin/
   args            init=/linuxrc 4 DOMID=+
Failed to create domain using: /usr/local/bin/xi_create 16384 XenoLinux2
[root@oscan18 root]# xenctl domain list
id: 0 (Domain-0)
  processor: 0
  has cpu: true
  state: 0 running
  mcu advance: 10
  total pages: 16383
id: 1 (XenoLinux2)
  processor: 0
  has cpu: false
  state: 8 suspended
  mcu advance: 10
  total pages: 8192

Then I tried to use 8M for domain2, it succeed.

Yesterday I used domain0=96M and domain1=16M and it also failed.
96+16=112 < 128M

Anyone else has experience on this?


Thanks all for your help!

sincerely,

Ning









On Tue, 21 Oct 2003, Ian Pratt wrote:

>
> > I did run it as root on domain0. The program calls ioctl(,SNDCTL...) and
> > denied access. ??????  What does it do with sound device? The error
> > returned for xi_phys_grant is "invalid argument".
>
> Things have already gone wrong with the xi_build -- let's solve
> that first.
>
> Does /proc/xen exist?
>
> Are you sure you have 98MB of memory free for the new domain?
>
> Thanks,
> Ian
>
>
> > Any ideas?
> >
> > Here is a more complete log:
> > [root@oscan18 root]# id
> > uid=0(root) gid=0(root)
> > groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)
> > [root@oscan18 root]# xi_create 98304 XenoLinux
> > ERROR: Error when executing privileged control ioctl (1 = Operation not
> > permitted)
> > [root@oscan18 root]# strace xi_create 98304 XenoLinux
> > execve("/usr/local/bin/xi_create", ["xi_create", "98304", "XenoLinux"],
> > [/* 35 vars */]) = 0
> > uname({sys="Linux", node="oscan18", ...}) = 0
> > brk(0)                                  = 0x8049b7c
> > open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or
> > directory)
> > open("/etc/ld.so.cache", O_RDONLY)      = 3
> > fstat64(3, {st_mode=S_IFREG|0644, st_size=13466, ...}) = 0
> > old_mmap(NULL, 13466, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40014000
> > close(3)                                = 0
> > open("/lib/i686/libc.so.6", O_RDONLY)   = 3
> > read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`u\1B4\0"...,
> > 1024) = 1024
> > fstat64(3, {st_mode=S_IFREG|0755, st_size=1401027, ...}) = 0
> > old_mmap(0x42000000, 1264928, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
> > 0x42000000
> > mprotect(0x4212c000, 36128, PROT_NONE)  = 0
> > old_mmap(0x4212c000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED,
> > 3, 0x12c000) = 0x4212c000
> > old_mmap(0x42131000, 15648, PROT_READ|PROT_WRITE,
> > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x42131000
> > close(3)                                = 0
> > munmap(0x40014000, 13466)               = 0
> > brk(0)                                  = 0x8049b7c
> > brk(0x8049bac)                          = 0x8049bac
> > brk(0x804a000)                          = 0x804a000
> > mlock(0xbffff500, 13466)                = 0
> > open("/proc/xeno/privcmd", O_RDWR)      = 3
> > ioctl(3, SNDCTL_DSP_RESET, 0xbffff4e0)  = -1 EPERM (Operation not
> > permitted)
> > write(2, "ERROR: Error when executing priv"..., 83ERROR: Error when
> > executing privileged control ioctl (1 = Operation not permitted)
> > ) = 83
> > close(3)                                = 0
> > munlock(0xbffff500, 292)                = 0
> > _exit(1)                                = ?
> > [root@oscan18 root]# strace /usr/local/bin/xi_phys_grant rw 1 768 48258
> > 29961162 5
> > execve("/usr/local/bin/xi_phys_grant", ["/usr/local/bin/xi_phys_grant",
> > "rw", "1", "768", "48258", "29961162", "5"], [/* 35 vars */]) = 0
> > uname({sys="Linux", node="oscan18", ...}) = 0
> > brk(0)                                  = 0x8049b40
> > open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or
> > directory)
> > open("/etc/ld.so.cache", O_RDONLY)      = 3
> > fstat64(3, {st_mode=S_IFREG|0644, st_size=13466, ...}) = 0
> > old_mmap(NULL, 13466, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40014000
> > close(3)                                = 0
> > open("/lib/i686/libc.so.6", O_RDONLY)   = 3
> > read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`u\1B4\0"...,
> > 1024) = 1024
> > fstat64(3, {st_mode=S_IFREG|0755, st_size=1401027, ...}) = 0
> > old_mmap(0x42000000, 1264928, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
> > 0x42000000
> > mprotect(0x4212c000, 36128, PROT_NONE)  = 0
> > old_mmap(0x4212c000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED,
> > 3, 0x12c000) = 0x4212c000
> > old_mmap(0x42131000, 15648, PROT_READ|PROT_WRITE,
> > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x42131000
> > close(3)                                = 0
> > munmap(0x40014000, 13466)               = 0
> > brk(0)                                  = 0x8049b40
> > brk(0x8049b70)                          = 0x8049b70
> > brk(0x804a000)                          = 0x804a000
> > open("/proc/xeno/privcmd", O_RDWR)      = 3
> > ioctl(3, SOUND_PCM_READ_RATE, 0x300)    = 4096
> > close(3)                                = 0
> > open("/proc/xeno/privcmd", O_RDWR)      = 3
> > ioctl(3, SNDCTL_DSP_SYNC, 0xbffff610)   = -1 EINVAL (Invalid argument)
> > write(2, "ERROR: Error when executing priv"..., 77ERROR: Error when
> > executing privileged control ioctl (22 = Invalid argument)
> > ) = 77
> > close(3)                                = 0
> > _exit(1)                                = ?
> > [root@oscan18 root]# uname -a
> > Linux oscan18 2.4.22-xeno #2 Mon Oct 20 16:58:44 EDT 2003
> > i686 unknown
> >
> >
> > On Tue, 21 Oct 2003, Keir Fraser wrote:
> >
> > > > Failed to create domain using: /usr/local/bin/xi_create 98304 XenoLinux
> > > > # /usr/local/bin/xi_create 98304 XenoLinux
> > > > ERROR: Error when executing privileged control ioctl (1 = Operation not
> > > > permitted)
> > > > # ./xenctl physical grant -phda5 -w -n1
> > > > warning: state file not found [/var/lib/xen/vdstate.xml]
> > > > Could not grant physical access using: /usr/local/bin/xi_phys_grant rw 1
> > > > 768 48258 29961162 5
> > >
> > > You need to run xenctl as root.
> > >
> > >  -- Keir
> > >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.net email is sponsored by OSDN developer relations
> > Here's your chance to show off your extensive product knowledge
> > We want to know what you know. Tell us and you have a chance to win $100
> > http://www.zoomerang.com/survey.zgi?HRPT1X3RYQNC5V4MLNSV3E54
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.sourceforge.net/lists/listinfo/xen-devel
>
>