Systems Administrator at Cyberone
2016-Aug-01 14:30 UTC
[Pkg-xen-devel] Bug#833153: Additional info - guest console output
Hi, Seems that after the migration, things stop working on the guest. Cant shutdown, reboot, cron fails, ssh fails. Further info (quest's console during migration process and attempt to migrate back ----------- migrate from server 1 to server 2 root at c1-sb-vs1:~# xl console c1-sb-test1 c1-sb-test1 login: Debian GNU/Linux 8 c1-sb-test1 hvc0 c1-sb-test1 login: [ 31.750901] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 31.752377] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 31.753716] PM: freeze of devices complete after 0.077 msecs [ 31.753748] PM: late freeze of devices complete after 0.023 msecs [ 31.753785] PM: noirq freeze of devices complete after 0.032 msecs <... disconnect ...> root at c1-sb-vs2:~# xl console c1-sb-test1 [ 31.757439] xen:grant_table: Grant tables using version 1 layout [ 31.757439] PM: noirq restore of devices complete after 0.036 msecs [ 31.757439] PM: early restore of devices complete after 0.022 msecs [ 31.761161] PM: restore of devices complete after 6.782 msecs [ 31.761190] Restarting tasks ... done. [ 31.778758] Setting capacity to 10485760 Debian GNU/Linux 8 c1-sb-test1 hvc0 c1-sb-test1 login: ----------- attempt to migrate back from server 2 to server 1 root at c1-sb-vs2:~# xl console c1-sb-test1 Debian GNU/Linux 8 c1-sb-test1 hvc0 c1-sb-test1 login: [ 92.404108] random: nonblocking pool is initialized [ 93.959766] Freezing user space processes ... [ 113.960323] Freezing of tasks failed after 20.000 seconds (1 tasks refusing to freeze, wq_busy=0): [ 113.960331] cron D ffff88001f815bc0 0 425 396 0x00000004 [ 113.960340] ffff88001a94e5c0 ffffffff81a0d500 ffff8800028fc000 ffff8800028fb9e8 [ 113.960346] ffff880002199598 ffff88001a94e5c0 ffff88001a93e240 ffff8800021994c0 [ 113.960360] ffffffff815c2a81 ffff8800021995a0 ffffffff815c5942 7fffffffffffffff [ 113.960372] Call Trace: [ 113.960416] [<ffffffff815c2a81>] ? schedule+0x31/0x80 [ 113.960424] [<ffffffff815c5942>] ? schedule_timeout+0x1b2/0x270 [ 113.960441] [<ffffffff812e4f77>] ? blk_finish_plug+0x27/0x40 [ 113.960516] [<ffffffffc007d8ef>] ? _xfs_buf_ioapply+0x35f/0x490 [xfs] [ 113.960528] [<ffffffff815c34b1>] ? wait_for_completion+0xf1/0x130 [ 113.960545] [<ffffffff810a3790>] ? wake_up_q+0x60/0x60 [ 113.960591] [<ffffffffc007f61f>] ? xfs_buf_read_map+0xff/0x180 [xfs] [ 113.960645] [<ffffffffc007f368>] ? xfs_buf_submit_wait+0x78/0x200 [xfs] [ 113.960684] [<ffffffffc00ac3a8>] ? xfs_trans_read_buf_map+0xe8/0x330 [xfs] [ 113.960728] [<ffffffffc007f61f>] ? xfs_buf_read_map+0xff/0x180 [xfs] [ 113.960781] [<ffffffffc00ac3a8>] ? xfs_trans_read_buf_map+0xe8/0x330 [xfs] [ 113.960825] [<ffffffffc0071f3e>] ? xfs_imap_to_bp+0x6e/0xf0 [xfs] [ 113.960883] [<ffffffffc0072680>] ? xfs_iread+0x80/0x2c0 [xfs] [ 113.960931] [<ffffffffc0087d62>] ? xfs_iget+0x332/0x840 [xfs] [ 113.960982] [<ffffffffc0090950>] ? xfs_lookup+0x100/0x140 [xfs] [ 113.961042] [<ffffffffc008d5a3>] ? xfs_vn_lookup+0x73/0xb0 [xfs] [ 113.961071] [<ffffffff8120a376>] ? __d_alloc+0x116/0x170 [ 113.961094] [<ffffffff811faf89>] ? lookup_real+0x19/0x60 [ 113.961104] [<ffffffff811fb397>] ? lookup_slow+0x57/0xe0 [ 113.961113] [<ffffffff811fdcd3>] ? walk_component+0x1f3/0x470 [ 113.961132] [<ffffffff811fbcf9>] ? path_init+0x1d9/0x330 [ 113.961142] [<ffffffff811fe6bd>] ? path_lookupat+0x5d/0x110 [ 113.961151] [<ffffffff81200dc1>] ? filename_lookup+0xb1/0x180 [ 113.961161] [<ffffffff812009ff>] ? getname_flags+0x6f/0x1e0 [ 113.961181] [<ffffffff811f5ff9>] ? vfs_fstatat+0x59/0xb0 [ 113.961189] [<ffffffff811916cc>] ? vm_mmap_pgoff+0xbc/0xf0 [ 113.961195] [<ffffffff811f654a>] ? SYSC_newstat+0x2a/0x60 [ 113.961203] [<ffffffff810648de>] ? __do_page_fault+0x20e/0x500 [ 113.961211] [<ffffffff815c6776>] ? system_call_fast_compare_end+0xc/0x96 [ 113.961217] [ 113.961225] Restarting tasks ... done. [ 113.962782] xen:manage: do_suspend: freeze processes failed -16 [ 240.032030] INFO: task cron:425 blocked for more than 120 seconds. [ 240.032043] Tainted: G W E 4.6.0-1-amd64 #1 [ 240.032049] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.032058] cron D ffff88001f815bc0 0 425 396 0x00000004 [ 240.032072] ffff88001a94e5c0 ffffffff81a0d500 ffff8800028fc000 ffff8800028fb9e8 [ 240.032084] ffff880002199598 ffff88001a94e5c0 ffff88001a93e240 ffff8800021994c0 [ 240.032100] ffffffff815c2a81 ffff8800021995a0 ffffffff815c5942 7fffffffffffffff [ 240.032122] Call Trace: [ 240.032147] [<ffffffff815c2a81>] ? schedule+0x31/0x80 [ 240.032159] [<ffffffff815c5942>] ? schedule_timeout+0x1b2/0x270 [ 240.032175] [<ffffffff812e4f77>] ? blk_finish_plug+0x27/0x40 [ 240.032235] [<ffffffffc007d8ef>] ? _xfs_buf_ioapply+0x35f/0x490 [xfs] [ 240.032252] [<ffffffff815c34b1>] ? wait_for_completion+0xf1/0x130 [ 240.032274] [<ffffffff810a3790>] ? wake_up_q+0x60/0x60 [ 240.032306] [<ffffffffc007f61f>] ? xfs_buf_read_map+0xff/0x180 [xfs] [ 240.032360] [<ffffffffc007f368>] ? xfs_buf_submit_wait+0x78/0x200 [xfs] [ 240.032395] [<ffffffffc00ac3a8>] ? xfs_trans_read_buf_map+0xe8/0x330 [xfs] [ 240.032444] [<ffffffffc007f61f>] ? xfs_buf_read_map+0xff/0x180 [xfs] [ 240.032479] [<ffffffffc00ac3a8>] ? xfs_trans_read_buf_map+0xe8/0x330 [xfs] [ 240.032520] [<ffffffffc0071f3e>] ? xfs_imap_to_bp+0x6e/0xf0 [xfs] [ 240.032557] [<ffffffffc0072680>] ? xfs_iread+0x80/0x2c0 [xfs] [ 240.032592] [<ffffffffc0087d62>] ? xfs_iget+0x332/0x840 [xfs] [ 240.032629] [<ffffffffc0090950>] ? xfs_lookup+0x100/0x140 [xfs] [ 240.032671] [<ffffffffc008d5a3>] ? xfs_vn_lookup+0x73/0xb0 [xfs] [ 240.032681] [<ffffffff8120a376>] ? __d_alloc+0x116/0x170 [ 240.032688] [<ffffffff811faf89>] ? lookup_real+0x19/0x60 [ 240.032697] [<ffffffff811fb397>] ? lookup_slow+0x57/0xe0 [ 240.032713] [<ffffffff811fdcd3>] ? walk_component+0x1f3/0x470 [ 240.032719] [<ffffffff811fbcf9>] ? path_init+0x1d9/0x330 [ 240.032726] [<ffffffff811fe6bd>] ? path_lookupat+0x5d/0x110 [ 240.032742] [<ffffffff81200dc1>] ? filename_lookup+0xb1/0x180 [ 240.032749] [<ffffffff812009ff>] ? getname_flags+0x6f/0x1e0 [ 240.032756] [<ffffffff811f5ff9>] ? vfs_fstatat+0x59/0xb0 [ 240.032763] [<ffffffff811916cc>] ? vm_mmap_pgoff+0xbc/0xf0 [ 240.032775] [<ffffffff811f654a>] ? SYSC_newstat+0x2a/0x60 [ 240.032783] [<ffffffff810648de>] ? __do_page_fault+0x20e/0x500 [ 240.032790] [<ffffffff815c6776>] ? system_call_fast_compare_end+0xc/0x96 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.alioth.debian.org/pipermail/pkg-xen-devel/attachments/20160801/ee8079bc/attachment-0001.html>