Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I tried to use it with Xen-3.0 It works well on 2 servers, and on third after some time of usage (about 2 hours) it fails. I tried Primary/Primary and Primary/Secondary. Only Primary host fails. Here is logmessages: First fail: Nov 7 11:05:39 cluster02 kernel: Unable to handle kernel paging request at virtual address ea66e000 Nov 7 11:05:39 cluster02 kernel: printing eip: Nov 7 11:05:39 cluster02 kernel: c0171175 Nov 7 11:05:39 cluster02 kernel: 00b60000 -> *pde = 00000000:3eb18001 Nov 7 11:05:39 cluster02 kernel: 00b18000 -> *pme = 00000000:3ec3c067 Nov 7 11:05:39 cluster02 kernel: 00c3c000 -> *pte = 00000000:00000000 Nov 7 11:05:39 cluster02 kernel: Oops: 0000 [#1] Nov 7 11:05:39 cluster02 kernel: SMP Nov 7 11:05:39 cluster02 kernel: last sysfs file: /devices/pci0000:00/0000:00:06.0/0000:06:00.0/subsystem_device Nov 7 11:05:39 cluster02 kernel: Modules linked in: xt_physdev iptable_filter ip_tables x_tables af_packet bridge ipv6 drbd blkbk netbk netloop raw button battery ac apparmor aamatch_pcre loop hw_random i8xx_tco tg3 shpchp pci_hotplug i2c_i801 i2c_core ehci_hcd uhci_hcd usbcore reiserfs dm_snapshot dm_mod fan thermal processor mptspi mptscsih mptbase scsi_transport_spi sg sr_mod cdrom ata_piix libata sd_mod scsi_mod Nov 7 11:05:39 cluster02 kernel: CPU: 0 Nov 7 11:05:39 cluster02 kernel: EIP: 0061:[<c0171175>] Tainted: G U VLI Nov 7 11:05:39 cluster02 kernel: EFLAGS: 00010206 (2.6.16.21-0.25-xenpae #1) Nov 7 11:05:39 cluster02 kernel: EIP is at __bio_clone+0x35/0xc0 Nov 7 11:05:39 cluster02 kernel: eax: 000000c0 ebx: ea41e380 ecx: 00000002 edx: ea66dec0 Nov 7 11:05:39 cluster02 kernel: esi: ea66e000 edi: eac87a38 ebp: ea41e380 esp: c7443b88 Nov 7 11:05:39 cluster02 kernel: ds: 007b es: 007b ss: 0069 Nov 7 11:05:39 cluster02 kernel: Process xvd 2 93:02 (pid: 5602, threadinfo=c7442000 task=c0b05630) Nov 7 11:05:39 cluster02 kernel: Stack: <0>ead32b60 ea41e380 ea66dec0 ea41b288 ea41b000 c0171230 00000800 00111bba Nov 7 11:05:39 cluster02 kernel: ee4cbe81 c154cda0 c154cda0 00000001 ea66d000 c0166c96 00000c00 00000001 Nov 7 11:05:39 cluster02 kernel: c0bed264 ffffffff c81cfcc8 c0bef680 0000002d 00000000 00000000 00000000 Nov 7 11:05:39 cluster02 kernel: Call Trace: Nov 7 11:05:39 cluster02 kernel: [<c0171230>] bio_clone+0x30/0x40 Nov 7 11:05:39 cluster02 kernel: [<ee4cbe81>] drbd_make_request_common+0x221/0xdc0 [drbd] Nov 7 11:05:39 cluster02 kernel: [<c0166c96>] cache_alloc_refill+0x86/0x5a0 Nov 7 11:05:39 cluster02 kernel: [<c01350b0>] autoremove_wake_function+0x0/0x50 Nov 7 11:05:39 cluster02 kernel: [<ee4ccc5f>] drbd_make_request_26+0x23f/0x3a7 [drbd] Nov 7 11:05:39 cluster02 kernel: [<ee4ccdad>] drbd_make_request_26+0x38d/0x3a7 [drbd] Nov 7 11:05:39 cluster02 kernel: [<c01d0d80>] generic_make_request+0x150/0x200 Nov 7 11:05:39 cluster02 kernel: [<c0166c96>] cache_alloc_refill+0x86/0x5a0 Nov 7 11:05:39 cluster02 kernel: [<ee4ca22a>] drbd_merge_bvec+0xca/0x130 [drbd] Nov 7 11:05:39 cluster02 kernel: [<ee4ca160>] drbd_merge_bvec+0x0/0x130 [drbd] Nov 7 11:05:39 cluster02 kernel: [<c0170954>] __bio_add_page+0x104/0x3c0 Nov 7 11:05:39 cluster02 kernel: [<c01d339f>] submit_bio+0x4f/0xf0 Nov 7 11:05:39 cluster02 kernel: [<c0170c47>] bio_add_page+0x37/0x50 Nov 7 11:05:39 cluster02 kernel: [<ee399799>] dispatch_rw_block_io+0x3b9/0x460 [blkbk] Nov 7 11:05:39 cluster02 kernel: [<ee4d7bbf>] drbd_unplug_fn+0xef/0x290 [drbd] Nov 7 11:05:39 cluster02 kernel: [<ee399a4b>] blkif_schedule+0x20b/0x420 [blkbk] Nov 7 11:05:39 cluster02 kernel: [<c01350b0>] autoremove_wake_function+0x0/0x50 Nov 7 11:05:39 cluster02 kernel: [<ee399840>] blkif_schedule+0x0/0x420 [blkbk] Nov 7 11:05:39 cluster02 kernel: [<c0134e2b>] kthread+0xab/0xe0 Nov 7 11:05:39 cluster02 kernel: [<c0134d80>] kthread+0x0/0xe0 Nov 7 11:05:39 cluster02 kernel: [<c0102b55>] kernel_thread_helper+0x5/0x10 Nov 7 11:05:39 cluster02 kernel: Code: 5c 24 04 89 74 24 08 89 7c 24 0c 8b 42 0c 8b 40 58 8b 40 38 89 04 24 8b 42 2c 8b 7d 30 8b 72 30 8d 04 40 c1 e0 02 89 c1 c1 e9 02 <f3> a5 89 c1 83 e1 03 74 02 f3 a4 8b 42 0c 8b 0a 8b 5a 04 83 4d Second fail: Nov 7 13:25:17 cluster02 kernel: Unable to handle kernel paging request at virtual address eb4e9000 Nov 7 13:25:17 cluster02 kernel: printing eip: Nov 7 13:25:17 cluster02 kernel: c0171175 Nov 7 13:25:17 cluster02 kernel: 2c1b6000 -> *pde = 00000000:12ba8001 Nov 7 13:25:17 cluster02 kernel: 2bda8000 -> *pme = 00000000:3ec43067 Nov 7 13:25:17 cluster02 kernel: 00c43000 -> *pte = 00000000:00000000 Nov 7 13:25:17 cluster02 kernel: Oops: 0000 [#1] Nov 7 13:25:17 cluster02 kernel: SMP Nov 7 13:25:17 cluster02 kernel: last sysfs file: /devices/pci0000:00/0000:00:06.0/0000:06:00.0/subsystem_device Nov 7 13:25:17 cluster02 kernel: Modules linked in: xt_physdev iptable_filter ip_tables x_tables af_packet bridge ipv6 drbd blkbk netbk netloop raw button battery ac apparmor aamatch_pcre loop hw_random i8xx_tco uhci_hcd ehci_hcd i2c_i801 i2c_core shpchp usbcore pci_hotplug tg3 reiserfs dm_snapshot dm_mod fan thermal processor mptspi mptscsih mptbase scsi_transport_spi sg sr_mod cdrom ata_piix libata sd_mod scsi_mod Nov 7 13:25:17 cluster02 kernel: CPU: 1 Nov 7 13:25:17 cluster02 kernel: EIP: 0061:[<c0171175>] Tainted: G U VLI Nov 7 13:25:17 cluster02 kernel: EFLAGS: 00010206 (2.6.16.21-0.25-xenpae #1) Nov 7 13:25:17 cluster02 kernel: EIP is at __bio_clone+0x35/0xc0 Nov 7 13:25:17 cluster02 kernel: eax: 000000c0 ebx: c8c6bf80 ecx: 00000002 edx: eb4e8ec0 Nov 7 13:25:17 cluster02 kernel: esi: eb4e9000 edi: c822d338 ebp: c8c6bf80 esp: c9229b88 Nov 7 13:25:17 cluster02 kernel: ds: 007b es: 007b ss: 0069 Nov 7 13:25:17 cluster02 kernel: Process xvd 1 93:02 (pid: 5262, threadinfo=c9228000 task=ec151050) Nov 7 13:25:17 cluster02 kernel: Stack: <0>c092d7a4 c8c6bf80 eb4e8ec0 c0546288 c0546000 c0171230 00000800 0018a7ba Nov 7 13:25:17 cluster02 kernel: ee4cde81 00000000 c09d1240 00000000 c8319780 c01711d5 00000c00 00000000 Nov 7 13:25:17 cluster02 kernel: 00000000 c0546000 c7c87b08 0018a78a 00000000 00000000 00000000 00000000 Nov 7 13:25:17 cluster02 kernel: Call Trace: Nov 7 13:25:17 cluster02 kernel: [<c0171230>] bio_clone+0x30/0x40 Nov 7 13:25:17 cluster02 kernel: [<ee4cde81>] drbd_make_request_common+0x221/0xdc0 [drbd] Nov 7 13:25:17 cluster02 kernel: [<c01711d5>] __bio_clone+0x95/0xc0 Nov 7 13:25:17 cluster02 kernel: [<ee0ab740>] mptscsih_io_done+0x0/0x5b0 [mptscsih] Nov 7 13:25:17 cluster02 kernel: [<c01350b0>] autoremove_wake_function+0x0/0x50 Nov 7 13:25:17 cluster02 kernel: [<ee4cec5f>] drbd_make_request_26+0x23f/0x3a7 [drbd] Nov 7 13:25:17 cluster02 kernel: [<ee4cedad>] drbd_make_request_26+0x38d/0x3a7 [drbd] Nov 7 13:25:17 cluster02 kernel: [<c010691c>] do_IRQ+0x3c/0x70 Nov 7 13:25:17 cluster02 kernel: [<c01d0d80>] generic_make_request+0x150/0x200 Nov 7 13:25:17 cluster02 kernel: [<c0166c96>] cache_alloc_refill+0x86/0x5a0 Nov 7 13:25:17 cluster02 kernel: [<ee4cc160>] drbd_merge_bvec+0x0/0x130 [drbd] Nov 7 13:25:17 cluster02 kernel: [<c0170954>] __bio_add_page+0x104/0x3c0 Nov 7 13:25:17 cluster02 kernel: [<c01d339f>] submit_bio+0x4f/0xf0 Nov 7 13:25:17 cluster02 kernel: [<c0170c47>] bio_add_page+0x37/0x50 Nov 7 13:25:17 cluster02 kernel: [<ee33b799>] dispatch_rw_block_io+0x3b9/0x460 [blkbk] Nov 7 13:25:17 cluster02 kernel: [<ee4d9bbf>] drbd_unplug_fn+0xef/0x290 [drbd] Nov 7 13:25:17 cluster02 kernel: [<ee33b991>] blkif_schedule+0x151/0x420 [blkbk] Nov 7 13:25:17 cluster02 kernel: [<c01350b0>] autoremove_wake_function+0x0/0x50 Nov 7 13:25:17 cluster02 kernel: [<ee33b840>] blkif_schedule+0x0/0x420 [blkbk] Nov 7 13:25:17 cluster02 kernel: [<c0134e2b>] kthread+0xab/0xe0 Nov 7 13:25:17 cluster02 kernel: [<c0134d80>] kthread+0x0/0xe0 Nov 7 13:25:17 cluster02 kernel: [<c0102b55>] kernel_thread_helper+0x5/0x10 Nov 7 13:25:17 cluster02 kernel: Code: 5c 24 04 89 74 24 08 89 7c 24 0c 8b 42 0c 8b 40 58 8b 40 38 89 04 24 8b 42 2c 8b 7d 30 8b 72 30 8d 04 40 c1 e0 02 89 c1 c1 e9 02 <f3> a5 89 c1 83 e1 03 74 02 f3 a4 8b 42 0c 8b 0a 8b 5a 04 83 4d Any suggestions?