[Xen-users] bug mmu.c

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] bug mmu.c
From:	Roberto Scudeller <beto.rvs@xxxxxxxxx>
Date:	Wed, 20 Oct 2010 11:48:27 -0200
Delivery-date:	Wed, 20 Oct 2010 06:49:55 -0700
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Hi all,

I try started 30 VM with 4 cores and 2GB RAM, but the Dom0 frozen.

I using xen 4.0.2-rc1-pre.

Bug in /var/log/messages:

Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.372734] kernel msg: ebtables bug: please report to author: Wrong nr. of counters requested
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445641] ------------[ cut here ]------------
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445671] kernel BUG at /root/xen4/xen-4.0-testing.hg/linux-2.6-pvops.git/arch/x86/xen/mmu.c:1850!
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445700] invalid opcode: 0000 [#1] SMP
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445731] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445756] CPU 2
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445776] Modules linked in: bridge stp ebt_ip ebtable_filter ebtables bonding xt_multiport bnx2 megaraid_sas
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445880] Pid: 12119, comm: ebtables Not tainted 2.6.32.24 #2 PowerEdge M610
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.445904] RIP: e030:[<ffffffff8100cb2e>] [<ffffffff8100cb2e>] pin_pagetable_pfn+0x31/0x37
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.446157] RSP: e02b:ffff88004d9a9dd8 EFLAGS: 00010282
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.446386] RAX: 00000000ffffffea RBX: 000000000002f093 RCX: 0000000000000001
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.446623] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88004d9a9dd8
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.446861] RBP: ffff88004d9a9df8 R08: ffffffff81864840 R09: 0000000000000041
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.447096] R10: 0000000000007ff0 R11: dead000000100100 R12: ffff880002977000
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.447329] R13: 000000000004bf96 R14: 0000000000000003 R15: ffff880026e89630
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.447567] FS: 00007f60c14a06e0(0000) GS:ffff8800025e6000(0000) knlGS:0000000000000000
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.448016] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.448246] CR2: 00000000014a8008 CR3: 000000002f093000 CR4: 0000000000002660
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.448481] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.448714] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.448947] Process ebtables (pid: 12119, threadinfo ffff88004d9a8000, task ffff8800473c0790)
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.449391] Stack:
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.449612] 0000000000000000 00000000008a7f96 000000014d9a9df8 000000000002f093
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.449914] <0> ffff88004d9a9e28 ffffffff8100e9e3 000000004bf96000 ffff88007e39bf00
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.450387] <0> ffff88007e39bf80 ffff880032fe7050 ffff88004d9a9e38 ffffffff8100ea1a
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.451076] Call Trace:
Oct 19 18:33:15 r7byach3x38p3 kernel: [ 6324.451307] [<ffffffff8100e9e3>] xen_alloc_ptpage+0x88/0x91
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.451542] [<ffffffff8100ea1a>] xen_alloc_pte+0xe/0x10
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.451779] [<ffffffff810cc999>] paravirt_alloc_pte+0x17/0x1b
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.452011] [<ffffffff810cea96>] __pte_alloc+0x7f/0xd2
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.452245] [<ffffffff810ceb9e>] handle_mm_fault+0xb5/0x72c
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.452484] [<ffffffff8155da46>] do_page_fault+0x205/0x271
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.452719] [<ffffffff8155ba35>] page_fault+0x25/0x30
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.452949] Code: ec 20 89 7d e0 48 89 f7 e8 be ff ff ff 48 8d 7d e0 48 89 45 e8 be 01 00 00 00 31 d2 41 ba f0 7f 00 00 e8 16 c8 ff ff 85 c0 74 04 <0f> 0b eb fe c9 c3 55 40 f6 c7 01 48 89 e5 53 48 89 fb 74 3c 48
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.520013] RIP [<ffffffff8100cb2e>] pin_pagetable_pfn+0x31/0x37
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.520258] RSP <ffff88004d9a9dd8>
Oct 19 18:33:16 r7byach3x38p3 kernel: [ 6324.520712] ---[ end trace 9e009ccddf07369a ]---

Thanks for any help.

--
Roberto Scudeller

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[Xen-users] bug mmu.c