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RE: [Xen-devel] ParaGuest cannot see 30GB memory

To: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] ParaGuest cannot see 30GB memory
From: pak333@xxxxxxxxxxx
Date: Wed, 10 May 2006 00:17:51 +0000
Delivery-date: Tue, 09 May 2006 17:18:15 -0700
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Looks like ti has problem allcoating mem


Mounting other filesystems:  [  OK  ]

Starting automount: kernel BUG at arch/xen/i386/mm/pgtable.c:284 (pgd_ctor)!

 [<c011334f>] pgd_ctor+0x50/0x5c

 [<c0146076>] cache_init_objs+0x49/0x60

 [<c0146245>] cache_grow+0x119/0x1df

 [<c01464d5>] cache_alloc_refill+0x1ca/0x232

 [<c0146748>] kmem_cache_alloc+0x7e/0x82

 [<c01133c3>] pgd_alloc+0x1c/0x31e

 [<c014fa92>] do_anonymous_page+0x97/0x28e

 [<c011c476>] mm_init+0xe6/0x117

 [<c011c75f>] copy_mm+0xbd/0x3bc

 [<c011cd99>] copy_files+0x20b/0x30f

 [<c0132d1e>] do_posix_clock_monotonic_get+0x18/0x4a

 [<c032adc0>] inflate_fixed+0x23/0x170

 [<c011d342>] copy_process+0x402/0xcc1

 [<c016d131>] do_pipe+0x188/0x216

 [<c032ac80>] inflate_stored+0x76/0x193

 [<c011dcf5>] do_fork+0x68/0x197

 [<c012b48c>] sys_rt_sigprocmask+0x86/0xe8

 [<c0108043>] sys_clone+0x3e/0x42

 [<c0109551>] syscall_call+0x7/0xb

Kernel panic - not syncing: BUG!

-------------- Original message --------------
From: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>

Could you send the serial output for the kernel panic?





From: pak333@xxxxxxxxxxx [mailto:pak333@xxxxxxxxxxx]
Sent: Tuesday, May 09, 2006 7:37 PM
To: Puthiyaparambil, Aravindh; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-devel] ParaGuest cannot see 30GB memory



Hi, I tried with 15GB and that too did not work. kernel panic: not syncing : BUG

This may be related to some of the other traffic I am seeing


- Thanks

- padma


-------------- Original message --------------
From: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>

Xen can only see 16GB of memory in PAE mode. So the greatest amount of memory you can assign to guest is a little less than 16GB ? dom0_mem.




From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of pak333@xxxxxxxxxxx
Sent: Tuesday, May 09, 2006 7:02 PM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] ParaGuest cannot see 30GB memory




I have buit Xen (32 bit) with PAE and can start multiple Paraguests with 4 gig memory, but cannot launch a single VM with more than 4 gb memory. I would like to launch 1 VM with 30GB or so memory. Are there any config paramters like kernel,/inittrd that need to be changed.


I have the ramdisk set to the initrd I used to boot xen with PAE.



- padma


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