Hi, This problem just occurs on a small ubuntu 8.04 LTS host. On this host, there is just 1 VM running. The problem always occurs, when the VM is up for about 2-3days. Suddenly, the machine hangs and you cannot connect to it using ssh. ( Just a xm destroy and xm create helps to get the VM running again. ) when i open the xen console of the vm, i start seeing such strange error messages: [148030.316941] [<c011cdb3>] dequeue_entity+0x13/0x40 [148030.316952] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148030.316963] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148030.316974] [<c0167ecf>] shrink_inactive_list+0x11f/ 0x3b0 [148030.316991] [<c01681fc>] shrink_zone+0x9c/0x100 [148030.317001] [<c016889c>] kswapd+0x44c/0x490 [148030.317014] [<c013bad0>] autoremove_wake_function+0x0/0x40 [148030.317027] [<c011e270>] complete+0x40/0x60 [148030.317037] [<c0168450>] kswapd+0x0/0x490 [148030.317042] [<c013b812>] kthread+0x42/0x70 [148030.317046] [<c013b7d0>] kthread+0x0/0x70 [148030.317051] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [148030.317057] ======================[148041.948368] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [148041.948377] [148041.948383] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [148041.948390] EIP: 0061:[<c03285f7>] EFLAGS: 00000286 CPU: 0 [148041.948399] EIP is at _spin_lock+0x7/0x10 [148041.948405] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [148041.948410] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [148041.948416] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [148041.948423] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [148041.948430] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [148041.948435] DR6: ffff0ff0 DR7: 00000400 [148041.948441] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [148041.948456] [<c0167c75>] shrink_page_list+0x4c5/0x600 [148041.948471] [<c011cdb3>] dequeue_entity+0x13/0x40 [148041.948481] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148041.948492] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148041.948504] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [148041.948520] [<c01681fc>] shrink_zone+0x9c/0x100 [148041.948531] [<c016889c>] kswapd+0x44c/0x490 [148041.948544] [<c013bad0>] autoremove_wake_function+0x0/0x40 [148041.948557] [<c011e270>] complete+0x40/0x60 [148041.948566] [<c0168450>] kswapd+0x0/0x490 [148041.948571] [<c013b812>] kthread+0x42/0x70 [148041.948576] [<c013b7d0>] kthread+0x0/0x70 [148041.948581] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [148041.948587] ======================[148053.543628] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [148053.543638] [148053.543644] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [148053.543650] EIP: 0061:[<c03285f7>] EFLAGS: 00000286 CPU: 0 [148053.543660] EIP is at _spin_lock+0x7/0x10 [148053.543665] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [148053.543671] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [148053.543676] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [148053.543684] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [148053.543690] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [148053.543696] DR6: ffff0ff0 DR7: 00000400 [148053.543701] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [148053.543719] [<c0167c75>] shrink_page_list+0x4c5/0x600 [148053.543734] [<c011cdb3>] dequeue_entity+0x13/0x40 [148053.543745] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148053.543755] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148053.543767] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [148053.543784] [<c01681fc>] shrink_zone+0x9c/0x100 [148053.543795] [<c016889c>] kswapd+0x44c/0x490 [148053.543808] [<c013bad0>] autoremove_wake_function+0x0/0x40 [148053.543820] [<c011e270>] complete+0x40/0x60 [148053.543828] [<c0168450>] kswapd+0x0/0x490 [148053.543833] [<c013b812>] kthread+0x42/0x70 [148053.543837] [<c013b7d0>] kthread+0x0/0x70 [148053.543842] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [148053.543849] ======================[148065.165553] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [148065.165563] [148065.165569] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [148065.165575] EIP: 0061:[<c03285f5>] EFLAGS: 00000286 CPU: 0 [148065.165585] EIP is at _spin_lock+0x5/0x10 [148065.165590] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [148065.165596] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [148065.165601] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [148065.165609] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [148065.165615] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [148065.165621] DR6: ffff0ff0 DR7: 00000400 [148065.165626] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [148065.165642] [<c0167c75>] shrink_page_list+0x4c5/0x600 [148065.165656] [<c011cdb3>] dequeue_entity+0x13/0x40 [148065.165667] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148065.165678] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148065.165690] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [148065.165706] [<c01681fc>] shrink_zone+0x9c/0x100 [148065.165717] [<c016889c>] kswapd+0x44c/0x490 [148065.165730] [<c013bad0>] autoremove_wake_function+0x0/0x40 [148065.165742] [<c011e270>] complete+0x40/0x60 [148065.165752] [<c0168450>] kswapd+0x0/0x490 [148065.165757] [<c013b812>] kthread+0x42/0x70 [148065.165762] [<c013b7d0>] kthread+0x0/0x70 [148065.165767] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [148065.165773] ======================[148076.738934] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [148076.738943] [148076.738950] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [148076.738956] EIP: 0061:[<c03285f5>] EFLAGS: 00000286 CPU: 0 [148076.738965] EIP is at _spin_lock+0x5/0x10 [148076.738971] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [148076.738976] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [148076.738982] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [148076.738989] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [148076.738996] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [148076.739001] DR6: ffff0ff0 DR7: 00000400 [148076.739007] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [148076.739022] [<c0167c75>] shrink_page_list+0x4c5/0x600 [148076.739037] [<c011cdb3>] dequeue_entity+0x13/0x40 [148076.739048] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148076.739059] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [148076.739070] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [148076.739087] [<c01681fc>] shrink_zone+0x9c/0x100 [148076.739097] [<c016889c>] kswapd+0x44c/0x490 [148076.739110] [<c013bad0>] autoremove_wake_function+0x0/0x40 [148076.739123] [<c011e270>] complete+0x40/0x60 [148076.739133] [<c0168450>] kswapd+0x0/0x490 [148076.739138] [<c013b812>] kthread+0x42/0x70 [148076.739142] [<c013b7d0>] kthread+0x0/0x70 [148076.739147] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [148076.739154] ======================[148088.362709] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [148088.362719] [148088.362725] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [148088.362731] EIP: 0061:[<c03285f7>] EFLAGS: 00000286 CPU: 0 [148088.362741] EIP is at _spin_lock+0x7/0x10 [148088.362746] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [148088.362754] ESI: c17a33c0 EDI__rmqueue_smallest+0xb7/0x130 [178204.806034] [<c02de99b>] __inet_lookup_listener+0x1b/0x140 [178204.806041] [<c02f589d>] tcp_v4_rcv+0x7bd/0x9a0 [178204.806049] [<c02d72b9>] ip_local_deliver_finish+0xf9/0x210 [178204.806055] [<c02d6f4f>] ip_rcv_finish+0xff/0x370 [178204.806061] [<c01082e3>] sched_clock+0x23/0x70 [178204.806067] [<c02d74c0>] ip_rcv+0x0/0x290 [178204.806072] [<c02b4419>] netif_receive_skb+0x399/0x480 [178204.806079] [<c01623d9>] free_hot_cold_page+0x139/0x220 [178204.806085] [<c026bd97>] netif_poll+0xa67/0[187595.019177] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [187595.019185] [187595.019189] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [187595.019193] EIP: 0061:[<c03285f7>] EFLAGS: 00000286 CPU: 0 [187595.019200] EIP is at _spin_lock+0x7/0x10 [187595.019203] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [187595.019206] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [187595.019210] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [187595.019215] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [187595.019219] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [187595.019223] DR6: ffff0ff0 DR7: 00000400 [187595.019226] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [187595.019236] [<c0167c75>] shrink_page_list+0x4c5/0x600 [187595.019245] [<c011cdb3>] dequeue_entity+0x13/0x40 [187595.019250] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187595.019256] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187595.019262] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [187595.019274] [<c01681fc>] shrink_zone+0x9c/0x100 [187595.019279] [<c016889c>] kswapd+0x44c/0x490 [187595.019287] [<c013bad0>] autoremove_wake_function+0x0/0x40 [187595.019294] [<c011e270>] complete+0x40/0x60 [187699.479450] [<c0168450>] kswapd+0x0/0x490 [187699.479454] [<c013b812>] kthread+0x42/0x70 [187699.479459] [<c013b7d0>] kthread+0x0/0x70 [187699.479464] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [187699.479470] ======================[187711.037292] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [187711.037301] [187711.037308] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [187711.037315] EIP: 0061:[<c03285f5>] EFLAGS: 00000286 CPU: 0 [187711.037325] EIP is at _spin_lock+0x5/0x10 [187711.037332] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [187711.037338] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [187711.037345] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [187711.037353] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [187711.037360] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [187711.037367] DR6: ffff0ff0 DR7: 00000400 [187711.037373] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [187711.037390] [<c0167c75>] shrink_page_list+0x4c5/0x600 [187711.037407] [<c011cdb3>] dequeue_entity+0x13/0x40 [187711.037420] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187711.037433] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187711.037448] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [187711.037467] [<c01681fc>] shrink_zone+0x9c/0x100 [187711.037480] [<c016889c>] kswapd+0x44c/0x490 [187711.037496] [<c013bad0>] autoremove_wake_function+0x0/0x40 [187711.037511] [<c011e270>] complete+0x40/0x60 [187711.037524] [<c0168450>] kswapd+0x0/0x490 [187711.037529] [<c013b812>] kthread+0x42/0x70 [187711.037534] [<c013b7d0>] kthread+0x0/0x70 [187711.037539] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [187711.037545] ======================[187722.652134] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [187722.652143] [187722.652150] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [187722.652157] EIP: 0061:[<c03285f5>] EFLAGS: 00000286 CPU: 0 [187722.652168] EIP is at _spin_lock+0x5/0x10 [187722.652174] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [187722.652180] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [187722.652187] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [187722.652195] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [187722.652202] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [187722.652209] DR6: ffff0ff0 DR7: 00000400 [187722.652215] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [187722.652233] [<c0167c75>] shrink_page_list+0x4c5/0x600 [187722.652252] [<c011cdb3>] dequeue_entity+0x13/0x40 [187722.652265] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187722.652284] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187722.652306] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [187722.652329] [<c01681fc>] shrink_zone+0x9c/0x100 [187722.652347] [<c016889c>] kswapd+0x44c/0x490 [187722.652372] [<c013bad0>] autoremove_wake_function+0x0/0x40 [187722.652387] [<c011e270>] complete+0x40/0x60 [187722.652400] [<c0168450>] kswapd+0x0/0x490 [187722.652406] [<c013b812>] kthread+0x42/0x70 [187722.652410] [<c013b7d0>] kthread+0x0/0x70 [187722.652415] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [187722.652426] ======================[187734.268601] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [187734.268610] [187734.268617] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [187734.268624] EIP: 0061:[<c03285f5>] EFLAGS: 00000286 CPU: 0 [187734.268635] EIP is at _spin_lock+0x5/0x10 [187734.268641] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [187734.268647] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [187734.268654] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [187734.268662] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [187734.268669] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [187734.268676] DR6: ffff0ff0 DR7: 00000400 [187734.268682] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [187734.268700] [<c0167c75>] shrink_page_list+0x4c5/0x600 [187734.268717] [<c011cdb3>] dequeue_entity+0x13/0x40 [187734.268730] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187734.268744] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187734.268758] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [187734.268777] [<c01681fc>] shrink_zone+0x9c/0x100 [187734.268795] [<c016889c>] kswapd+0x44c/0x490 [187734.268811] [<c013bad0>] autoremove_wake_function+0x0/0x40 [187734.268826] [<c011e270>] complete+0x40/0x60 [187734.268839] [<c0168450>] kswapd+0x0/0x490 [187734.268845] [<c013b812>] kthread+0x42/0x70 [187734.268850] [<c013b7d0>] kthread+0x0/0x70 [187734.268854] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [187734.268861] ======================[187745.853420] BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:95] [187745.853429] [187745.853436] Pid: 95, comm: kswapd0 Tainted: G D (2.6.24-24-xen #1) [187745.853443] EIP: 0061:[<c03285f7>] EFLAGS: 00000286 CPU: 0 [187745.853454] EIP is at _spin_lock+0x7/0x10 [187745.853460] EAX: cf802dd8 EBX: cf802d94 ECX: c17a33c0 EDX: 00000000 [187745.853466] ESI: c17a33c0 EDI: 00000000 EBP: cfdeff7c ESP: cfdefdcc [187745.853473] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 [187745.853482] CR0: 8005003b CR2: 00100100 CR3: 0f5b7000 CR4: 00000660 [187745.853489] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [187745.853496] DR6: ffff0ff0 DR7: 00000400 [187745.853502] [<c01a6ebd>] try_to_free_buffers+0x2d/0x90 [187745.853520] [<c0167c75>] shrink_page_list+0x4c5/0x600 [187745.853537] [<c011cdb3>] dequeue_entity+0x13/0x40 [187745.853555] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187745.853569] [<c0166e0f>] isolate_lru_pages+0x5f/0x1c0 [187745.853583] [<c0167ecf>] shrink_inactive_list+0x11f/0x3b0 [187745.853605] [<c01681fc>] shrink_zone+0x9c/0x100 [187745.853619] [<c016889c>] kswapd+0x44c/0x490 [187745.853636] [<c013bad0>] autoremove_wake_function+0x0/0x40 [187745.853654] [<c011e270>] complete+0x40/0x60 [187745.853667] [<c0168450>] kswapd+0x0/0x490 [187745.853672] [<c013b812>] kthread+0x42/0x70 [187745.853677] [<c013b7d0>] kthread+0x0/0x70 [187745.853682] [<c0105bb7>] kernel_thread_helper+0x7/0x10 [187745.853689] ====================== Does anyone know what to do there? Thanks a lot in advance for any reply. Marco Weber _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hey, On Wed, Jan 26, 2011 at 10:58:28AM +0100, Marco Weber wrote:> This problem just occurs on a small ubuntu 8.04 LTS host. > On this host, there is just 1 VM running. > The problem always occurs, when the VM is up for about 2-3days. > Suddenly, the machine hangs and you cannot connect to it using ssh. > ( Just a xm destroy and xm create helps to get the VM running again. )You forgot to say what kernel you''re running on your dom0 and what kernel you''re running on your domU and of course, what xen hypervisor version are you running? Regards, D. -- Dmitry Nedospasov <dmitry@nedos.net> -- Twitter: @nedos Web: http://nedos.net -- Github: http://github.com/nedos _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Marco Weber wrote:>This problem just occurs on a small ubuntu 8.04 LTS host. >On this host, there is just 1 VM running. >The problem always occurs, when the VM is up for about 2-3days. >Suddenly, the machine hangs and you cannot connect to it using ssh. >( Just a xm destroy and xm create helps to get the VM running again. )From the copious console messages I think it probably isn''t the known xenconsoled bug, but just to rule it out can you try this next time it happens ? With xentop, see how much CPU the guest is using. Typically I see the guest taking one full core. stop xend - "/etc/init.d/xend stop" kill the xencolsoled process : ps axl | grep xenconsoled kill nnn (where nnn is the process ID found in the previous step) start xend again - "/etc/init.d/xend start" Withsome combinations of xen and kernel, the guest will block on IO to the console because xenconsoled has turned up it''s toes in some way. Restarting xenconsoled unblocks it and the guest carries on as it was. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
hi,
yes you''re right:
host: 2.6.24-24-xen (ubuntu 8.04 LTS)
vm: 2.6.24-24-xen (ubuntu 8.04 LTS)
__ __ _____ ____ _ _
\ \/ /___ _ __ |___ / |___ \ / | _ __ ___/ | _ __ _ __ ___
\ // _ \ ''_ \ |_ \ __) | | |__| ''__/ __| |__|
''_ \| ''__/ _ \
/ \ __/ | | | ___) | / __/ _| |__| | | (__| |__| |_) | | | __/
/_/\_\___|_| |_| |____(_)_____(_)_| |_| \___|_| | .__/|_| \___|
|_|
(XEN) Xen version 3.2.1-rc1-pre (buildd@buildd) (gcc version 4.2.4
(Ubuntu 4.2.4-1ubuntu4)) Fri Feb 20 06:53:43 UTC 2009
(XEN) Latest ChangeSet: unavailable
(XEN) Command line:
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: V2; EDID transfer time: 2 seconds
(XEN) Disc information:
(XEN) Found 2 MBR signatures
(XEN) Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 0000000000098000 (usable)
(XEN) 0000000000098000 - 00000000000a0000 (reserved)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000003fee0000 (usable)
(XEN) 000000003fee0000 - 000000003fee3000 (ACPI NVS)
(XEN) 000000003fee3000 - 000000003fef0000 (ACPI data)
(XEN) 000000003fef0000 - 000000003ff00000 (reserved)
(XEN) 00000000e0000000 - 00000000f0000000 (reserved)
(XEN) 00000000fec00000 - 0000000100000000 (reserved)
(XEN) System RAM: 1022MB (1047008kB)
(XEN) Xen heap: 9MB (10128kB)
(XEN) Domain heap initialised: DMA width 32 bits
(XEN) PAE enabled, limit: 16 GB
(XEN) Processor #0 15:7 APIC version 16
(XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2021.984 MHz processor.
(XEN) CPU0: AMD Opteron(tm) Processor 146 stepping 01
(XEN) Total of 1 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Platform timer overflows in 234 jiffies.
(XEN) Platform timer is 3.579MHz ACPI PM Timer
(XEN) Brought up 1 CPUs
(XEN) AMD IOMMU: Disabled
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 32-bit, PAE, lsb
(XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc0503000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000003c000000->000000003e000000 (232499 pages
to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0100000->c0503000
(XEN) Init. ramdisk: c0503000->c16f3e00
(XEN) Phys-Mach map: c16f4000->c17df0cc
(XEN) Start info: c17e0000->c17e0474
(XEN) Page tables: c17e1000->c17f4000
(XEN) Boot stack: c17f4000->c17f5000
(XEN) TOTAL: c0000000->c1c00000
(XEN) ENTRY ADDRESS: c0100000
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Initrd len 0x11f0e00, start at 0xc0503000
(XEN) Scrubbing Free RAM: done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch
input to Xen)
(XEN) Freed 96kB init memory.
See you,
Marco
On 01/26/2011 12:31 PM, Dmitry Nedospasov wrote:> Hey,
>
> On Wed, Jan 26, 2011 at 10:58:28AM +0100, Marco Weber wrote:
>> This problem just occurs on a small ubuntu 8.04 LTS host.
>> On this host, there is just 1 VM running.
>> The problem always occurs, when the VM is up for about 2-3days.
>> Suddenly, the machine hangs and you cannot connect to it using ssh.
>> ( Just a xm destroy and xm create helps to get the VM running
again. )
> You forgot to say what kernel you''re running on your dom0 and what
> kernel you''re running on your domU and of course, what xen
hypervisor
> version are you running?
>
> Regards,
>
> D.
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
right now it happened again... i followed your guide, and it seems that the vm uses 100% cpu. what can be done to fix this xenconsoled bug? 2011/1/26 Simon Hobson <linux@thehobsons.co.uk>> Marco Weber wrote: > > This problem just occurs on a small ubuntu 8.04 LTS host. >> On this host, there is just 1 VM running. >> The problem always occurs, when the VM is up for about 2-3days. >> Suddenly, the machine hangs and you cannot connect to it using ssh. >> ( Just a xm destroy and xm create helps to get the VM running again. ) >> > > From the copious console messages I think it probably isn''t the known > xenconsoled bug, but just to rule it out can you try this next time it > happens ? > > With xentop, see how much CPU the guest is using. Typically I see the guest > taking one full core. > > stop xend - "/etc/init.d/xend stop" > > kill the xencolsoled process : > ps axl | grep xenconsoled > kill nnn (where nnn is the process ID found in the previous step) > > start xend again - "/etc/init.d/xend start" > > Withsome combinations of xen and kernel, the guest will block on IO to the > console because xenconsoled has turned up it''s toes in some way. Restarting > xenconsoled unblocks it and the guest carries on as it was. > > -- > Simon Hobson > > Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed > author Gladys Hobson. Novels - poetry - short stories - ideal as > Christmas stocking fillers. Some available as e-books. > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
At 17:35 -0800 29/1/11, Marco Weber wrote:>right now it happened again... i followed your guide, and it seems >that the vm uses 100% cpu. >what can be done to fix this xenconsoled bug?Did you also follow the steps I outlined ?>stop xend - "/etc/init.d/xend stop" > >kill the xencolsoled process : >ps axl | grep xenconsoled >kill nnn (where nnn is the process ID found in the previous step) > >start xend again - "/etc/init.d/xend start"If so, did that unfreeze the guest ? -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
hi,
( sorry for my late reply. i was ill this week. in fact i''m still
recovering
from a terrible flu. ;) )
yes, killing xenconsoled helped unfreezing the guest.
you said, that it happens on certain kernels. so should i just use another
guest kernel and the problem disappears?
see you,
marco
2011/1/30 Simon Hobson <linux@thehobsons.co.uk>
> At 17:35 -0800 29/1/11, Marco Weber wrote:
>
>> right now it happened again... i followed your guide, and it seems that
>> the vm uses 100% cpu.
>> what can be done to fix this xenconsoled bug?
>>
>
> Did you also follow the steps I outlined ?
>
>
> stop xend - "/etc/init.d/xend stop"
>>
>> kill the xencolsoled process :
>> ps axl | grep xenconsoled
>> kill nnn (where nnn is the process ID found in the previous step)
>>
>> start xend again - "/etc/init.d/xend start"
>>
>
> If so, did that unfreeze the guest ?
>
>
> --
> Simon Hobson
>
> Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
> author Gladys Hobson. Novels - poetry - short stories - ideal as
> Christmas stocking fillers. Some available as e-books.
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>
--
*Marco Weber**
System Administrator
*Tel: +352 26 53 42 1
Fax: +352 26 53 42 42
*
Open your ears!*
41, avenue de la Gare
L-1611 – Luxembourg
www.jamendo.com
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Marco Weber wrote:>yes, killing xenconsoled helped unfreezing the guest. >you said, that it happens on certain kernels. so should i just use >another guest kernel and the problem disappears?Quite probably using newer kernel/tools/hypervisor would cure it. I''m running what is now a fairly old setup with Xen 3.2.1 & Kernel 2.6.18 on Dom0, and kernel 2.6.26 in DomU. All Debian Lenny except for Dom0 kernel which is Sarge. I''ve never pursued it since it''s not been a major headache - but more importantly I''ve not yet had enough hand me down hardware to be able to move things around and safely do upgrades :-( -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users