Re: Fw: not syncing

["Pasi Kärkkäinen" <pasik@iki.fi>]

On Sat, Mar 20, 2010 at 12:00:40AM -0700, ccmail111 wrote:
> 
> Attaching error I see on serial:
> 
> 
> (XEN) Dom0 has maximum 1 VCPUs
> 
> (XEN) Scrubbing Free RAM:
> ....................................................................done.
> 
> (XEN) Xen trace buffers: disabled
> 
> (XEN) Std. Loglevel: All
> 
> (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
> 
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
> 
> (XEN) Freed 128kB init memory.
> 
> Bootdata ok (command line is root=dev/ram0 ro console=hvc0 earlyprintk=xen
> nomodeset)
> 

"console=hvc0 earlyprintk=xen" are options for a pvops dom0 kernel,
I don't think linux-2.6.18-xen can use them.

-- Pasi


> Linux version 2.6.18.8-xen (stevyang@wilma) (gcc version 4.1.2 20080704 (Red Hat
> 4.1.2-44)) #1 SMP Mon Mar 15 23:23:21 PDT 2010
> 
> BIOS-provided physical RAM map:
> 
>  Xen: 0000000000000000 - 0000000040800000 (usable)
> 
> kernel direct mapping tables up to 40800000 @ 3f736000-3f93d000
> 
> DMI 2.4 present.
> 
> bootmem alloc of 14794752 bytes failed!
> 
> Kernel panic - not syncing: Out of memory
> 
>  (XEN) Domain 0 crashed: 'noreboot' set - not rebooting.
> 
> Any thoughts/suggestions, appreciated !
> 
> Thanks,
> SV
> 
> --- On Sat, 3/20/10, ccmail111 <ccmail111@yahoo.com> wrote:
> 
>   From: ccmail111 <ccmail111@yahoo.com>
>   Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
>   To: xen-devel@lists.xensource.com, "Dan Magenheimer" <dan.magenheimer@oracle.com>
>   Date: Saturday, March 20, 2010, 2:37 AM
> 
>   Thanks Dan.
>   I am past that and see different error now:
> 
>   "Xen: Scrubbing Free RAM ............"
>   Then the xterm(screen) goes blank..
> 
>   Any thoughts ?
> 
>   SV
>   --- On Fri, 3/19/10, Dan Magenheimer <dan.magenheimer@oracle.com> wrote:
> 
>     From: Dan Magenheimer <dan.magenheimer@oracle.com>
>     Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
>     To: "ccmail111" <ccmail111@yahoo.com>, xen-devel@lists.xensource.com
>     Date: Friday, March 19, 2010, 9:16 PM
> 
>     Your kernel and initrd are compressed and still exceed 512MB?  That is very
>     unusual.  Are you building everything in your dom0 kernel? (e.g. answering yes
>     to all drivers, and everything when configuring your kernel?)  If so, thatâ**s
>     not a good idea and is likely contributing to your problem.
> 
> 
> 
>     You didnâ**t say how much memory is in your machine.  If you have enough, you
>     can try dom0_mem=768M or dom0_mem=1GB and so on.
> 
> 
> 
>     If those suggestions donâ**t work, sorry, maybe someone else can answer but this
>     is probably a xen-users list question than a xen-devel question.
> 
> 
> 
>     From: ccmail111 [mailto:ccmail111@yahoo.com]
>     Sent: Friday, March 19, 2010 5:47 PM
>     To: xen-devel@lists.xensource.com; Dan Magenheimer
>     Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
> 
> 
> 
>     Hi Dan,
> 
>     Thanks for response.
> 
> 
> 
>     I just tried (with dom0_mem=512M) and see error:
> 
>     "Domain 0 allocation is too small for kernel image"
> 
> 
> 
>     But if I dont use the parameter I see error as in subject line which is
>     different.
> 
>     Question is: does subject line error printed by kernel ? Any kernel parameter
>     that I need to change during build ?
> 
> 
> 
>     Any suggestions ?
> 
>     Is there anyway I can specifiy the max for kernel and xen ?
> 
> 
> 
>     Thanks,
> 
> 
> 
>     SV
> 
> 
> 
>     --- On Fri, 3/19/10, Dan Magenheimer <dan.magenheimer@oracle.com> wrote:
> 
>       From: Dan Magenheimer <dan.magenheimer@oracle.com>
>       Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
>       To: "ccmail111" <ccmail111@yahoo.com>, xen-devel@lists.xensource.com
>       Date: Friday, March 19, 2010, 6:10 PM
> 
>       You should be able to get around this problem by specifying dom0_mem= on the
>       Xen boot line, e.g.:
> 
> 
> 
>       kernel /boot/xen.gz noreboot loglvl=all dom0_mem=256M
> 
> 
> 
>     From: ccmail111 [mailto:ccmail111@yahoo.com]
>     Sent: Friday, March 19, 2010 3:43 PM
>     To: xen-devel@lists.xensource.com
>     Subject: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
> 
> 
> 
>     --- On Fri, 3/19/10, ccmail111 <ccmail111@yahoo.com> wrote:
> 
>     From: ccmail111 <ccmail111@yahoo.com>
>     Subject: Not enough RAM for domain 0 allocation
>     To: "Fajar A. Nugraha" <fajar@fajar.net>
>     Cc: xen-users@lists.xensource.com
>     Date: Friday, March 19, 2010, 5:38 PM
> 
> 
> 
>     Hi,
> 
> 
> 
>     I see above error when xen tries to boot up.
> 
> 
> 
>     The grub.conf is:
> 
> 
> 
>     title Dom0 Xen 3.4.2  XenLinux 2.6
>            kernel /boot/xen.gz noreboot loglvl=all
>            module /boot/vmlinuz.vm  root=dev/ram0 ro
>            module /boot/ramdisk.gz
> 
>     Looking through archives I found couple of pointers but no solution.
> 
>     The closest I see:
> 
>     [1]http://www.mailinglistarchive.com/xen-devel@lists.xensource.com/msg56592.html
> 
>     by Keir:
> 
> 
> 
>     " Either this restriction of the domain builder needs
>     to be lifted (a bit of a pain and not really on anyone's todo list), ..."
> 
> 
> 
>     Any solutions/suggestions is appreciated !
> 
> 
> 
>     Thanks !
> 
> 
> 
>     SV
> 
> 
> 
> 
> 
> 
> 
> 
> 
> References
> 
>    Visible links
>    1. http://www.mailinglistarchive.com/xen-devel@lists.xensource.com/msg56592.html

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel