[DRBD-user] H.A Xen

Bart Coninckx bart.coninckx at telenet.be
Sat Feb 19 12:05:21 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


What's the deal with the storage for the DomU's? LVM block devices? Are
the VG activated first?

On 02/19/11 10:52, gilmarlinux at agrovale.com.br wrote:
> Hello!
> I am using the solution with drbd + heartbeat xen xen to have an
> environment with high availability.
> 2 servers with two primaries where five runs on server1 and 2 domus
> domus in server2, uses the same block device, but there is no recording
> simultaneously in the same VG.
> The problem with that when server2 2 domU, has a fall, after a few
> seconds a message appears on server1 and the same screen and restarted.
> Below is the message
> Thanks.
> 
> [  302.797651] BUG: soft lockup - CPU#6 stuck for 61s! [vgchange:3054]
> [  302.797713] Modules linked in: bridge stp xen_evtchn xenfs drbd
> lru_cache cn loop snd_pcm snd_timer snd soundcore snd_page_alloc psmouse
> joydev evdev serio_raw power_meter dcdbas processor pcspkr button
> acpi_processor ext4 mbcache jbd2 crc16 dm_mod usbhid hid sg sr_mod cdrom
> ata_generic sd_mod ses usb_storage enclosure crc_t10dif uhci_hcd
> ata_piix libata megaraid_sas ehci_hcd usbcore nls_base scsi_mod thermal
> bnx2 thermal_sys [last unloaded: scsi_wait_scan]
> [  302.799472] CPU 6:
> [  302.799551] Modules linked in: bridge stp xen_evtchn xenfs drbd
> lru_cache cn loop snd_pcm snd_timer snd soundcore snd_page_alloc psmouse
> joydev evdev serio_raw power_meter dcdbas processor pcspkr button
> acpi_processor ext4 mbcache jbd2 crc16 dm_mod usbhid hid sg sr_mod cdrom
> ata_generic sd_mod ses usb_storage enclosure crc_t10dif uhci_hcd
> ata_piix libata megaraid_sas ehci_hcd usbcore nls_base scsi_mod thermal
> bnx2 thermal_sys [last unloaded: scsi_wait_scan]
> [  302.801304] Pid: 3054, comm: vgchange Tainted: G      D   
> 2.6.32-5-xen-amd64 #1 PowerEdge T610
> [  302.801379] RIP: e030:[<ffffffff8130cb18>]  [<ffffffff8130cb18>]
> _spin_lock+0x15/0x1b
> [  302.801491] RSP: e02b:ffff88013de65b10  EFLAGS: 00000297
> [  302.801546] RAX: 0000000000000049 RBX: ffff88013de65b28 RCX:
> ffff88013de65b68
> [  302.801604] RDX: 0000000000000048 RSI: 0000000000000200 RDI:
> ffff88013afa3880
> [  302.801662] RBP: 0000000000000200 R08: 0000000000000008 R09:
> ffffffff814eb870
> [  302.801720] R10: 000000000000000b R11: ffffffff811ba945 R12:
> ffff88013afa3800
> [  302.801778] R13: 000000000000c580 R14: ffff88013de65b28 R15:
> ffffffff814eb830
> [  302.801839] FS:  00007fb85aeee7a0(0000) GS:ffff88000678b000(0000)
> knlGS:0000000000000000
> [  302.806903] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> [  302.806959] CR2: 00000000028f03f8 CR3: 0000000001001000 CR4:
> 0000000000002660
> [  302.807017] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [  302.807075] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [  302.807133] Call Trace:
> [  302.807189]  [<ffffffff8100dd87>] ? xen_exit_mmap+0xf8/0x136
> [  302.807245]  [<ffffffff8130cb3a>] ? _spin_unlock_irqrestore+0xd/0xe
> [  302.807303]  [<ffffffff8100922a>] ? hypercall_page+0x22a/0x1001
> [  302.807361]  [<ffffffff810d1208>] ? exit_mmap+0x5a/0x148
> [  302.807417]  [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [  302.807475]  [<ffffffff811ba945>] ? vgacon_cursor+0x0/0x140
> [  302.807533]  [<ffffffff8104cb09>] ? mmput+0x3c/0xdf
> [  302.807588]  [<ffffffff81050702>] ? exit_mm+0x102/0x10d
> [  302.807644]  [<ffffffff8100ec99>] ? xen_irq_enable_direct_end+0x0/0x7
> [  302.807702]  [<ffffffff81052127>] ? do_exit+0x1f8/0x6c6
> [  302.807758]  [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [  302.807816]  [<ffffffff8130cb3a>] ? _spin_unlock_irqrestore+0xd/0xe
> [  302.807873]  [<ffffffff8104f3af>] ? release_console_sem+0x17e/0x1af
> [  302.807931]  [<ffffffff8130d9dd>] ? oops_end+0xaf/0xb4
> [  302.807988]  [<ffffffff810135f0>] ? do_invalid_op+0x8b/0x95
> [  302.808045]  [<ffffffff8100c694>] ? pin_pagetable_pfn+0x2d/0x36
> [  302.808105]  [<ffffffffa01079ea>] ? copy_params+0x71/0xb1 [dm_mod]
> [  302.808164]  [<ffffffff810baf07>] ? __alloc_pages_nodemask+0x11c/0x5f5
> [  302.808222]  [<ffffffff8101293b>] ? invalid_op+0x1b/0x20
> [  302.808278]  [<ffffffff8100c694>] ? pin_pagetable_pfn+0x2d/0x36
> [  302.808335]  [<ffffffff8100c690>] ? pin_pagetable_pfn+0x29/0x36
> [  302.808392]  [<ffffffff810cd4e2>] ? __pte_alloc+0x6b/0xc6
> [  302.808449]  [<ffffffff810cb394>] ? pmd_alloc+0x28/0x5b
> [  302.808505]  [<ffffffff810cd60b>] ? handle_mm_fault+0xce/0x80f
> [  302.808561]  [<ffffffff810d2bcc>] ? do_brk+0x227/0x301
> [  302.808619]  [<ffffffff8130f016>] ? do_page_fault+0x2e0/0x2fc
> [  302.808675]  [<ffffffff8130ceb5>] ? page_fault+0x25/0x30
> 
> 
> 
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