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Old 3rd April 2009, 12:51
AlexKent AlexKent is offline
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Default Confirmation of identical setups

Hi Falko,

uname -a on both dom0 is:

Linux xen02.example.com 2.6.26-1-xen-amd64 #1 SMP Fri Mar 13 21:39:38 UTC 2009 x86_64 GNU/Linux

Linux xen03.example.com 2.6.26-1-xen-amd64 #1 SMP Fri Mar 13 21:39:38 UTC 2009 x86_64 GNU/Linux

They are both setup the same using your tutorial and are otherwise running flawlessly.

One difference to your first tutorial is that they use LVM for managing their discs, like I saw on your follow on tutorial.

I've just tried again, this time without the --live migrate option and the same problem occurs.

I can connect to a console, but after typing in username and pressing enter, the system blocks for a period time and then returns:

---

dom1.example.com login: alex
[ 168.431234] vbd vbd-2049: 16 Device in use; refusing to close

---

After a little while longer of nothingness (couple of minutes), I get:

[ 232.123828] INFO: task rsyslogd:1157 blocked for more than 120 seconds.
[ 232.123837] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 232.123843] rsyslogd D ffff88008162d000 0 1157 1
[ 232.123850] ffff880001617c58 0000000000000286 ffff88000e130120 ffffffff8037e2cb
[ 232.123862] ffff88000fd904c0 ffff88000fd42340 ffff88000fd90740 000000008020e810
[ 232.123872] 0000000000000000 ffff88000e159aa8 0000000000000dfe ffff88008162d000
[ 232.123879] Call Trace:
[ 232.123890] [<ffffffff8037e2cb>] gnttab_free_grant_references+0x19/0x87
[ 232.123898] [<ffffffff8020e911>] xen_clocksource_read+0xd/0x9c
[ 232.123905] [<ffffffff80265ed3>] sync_page_killable+0x0/0x30
[ 232.123912] [<ffffffff80243f2e>] getnstimeofday+0x39/0x98
[ 232.123920] [<ffffffff80265ed3>] sync_page_killable+0x0/0x30
[ 232.123926] [<ffffffff80434a5f>] io_schedule+0x5c/0x9e
[ 232.123932] [<ffffffff802646fd>] sync_page+0x3c/0x41
[ 232.123937] [<ffffffff80265edc>] sync_page_killable+0x9/0x30
[ 232.123942] [<ffffffff80434bd2>] __wait_on_bit_lock+0x36/0x66
[ 232.123948] [<ffffffff8026464a>] __lock_page_killable+0x5e/0x64
[ 232.123956] [<ffffffff8023f6c7>] wake_bit_function+0x0/0x23
[ 232.123962] [<ffffffff802661fd>] generic_file_aio_read+0x2fa/0x4b2
[ 232.123972] [<ffffffff8028a23b>] do_sync_read+0xc9/0x10c
[ 232.123978] [<ffffffff8023f699>] autoremove_wake_function+0x0/0x2e
[ 232.123985] [<ffffffff8028aa2c>] vfs_read+0xaa/0x152
[ 232.123990] [<ffffffff8028ae0d>] sys_read+0x45/0x6e
[ 232.123996] [<ffffffff8020b528>] system_call+0x68/0x6d
[ 232.124001] [<ffffffff8020b4c0>] system_call+0x0/0x6d
[ 232.124005]
[ 232.124009] INFO: task cron:2109 blocked for more than 120 seconds.
[ 232.124015] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 232.124021] cron D ffff88008162d000 0 2109 1197
[ 232.124029] ffff88000f2499e8 0000000000000282 ffff88000e1300b0 ffffffff8037e2cb
[ 232.124039] ffff88000fd436c0 ffff88000fce2140 ffff88000fd43940 000000008020e810
[ 232.124048] ffff88000f802980 ffff88000fd4d1a8 0000000000000dfe ffff88008162d000
[ 232.124055] Call Trace:
[ 232.124061] [<ffffffff8037e2cb>] gnttab_free_grant_references+0x19/0x87
[ 232.124068] [<ffffffff8020e911>] xen_clocksource_read+0xd/0x9c
[ 232.124074] [<ffffffff80243f2e>] getnstimeofday+0x39/0x98
[ 232.124080] [<ffffffff802ac72a>] sync_buffer+0x0/0x3f
[ 232.124085] [<ffffffff80434a5f>] io_schedule+0x5c/0x9e
[ 232.124090] [<ffffffff802ac765>] sync_buffer+0x3b/0x3f
[ 232.124095] [<ffffffff80434cba>] __wait_on_bit+0x40/0x6e
[ 232.124102] [<ffffffff802ac72a>] sync_buffer+0x0/0x3f
[ 232.124107] [<ffffffff80434d54>] out_of_line_wait_on_bit+0x6c/0x78
[ 232.124114] [<ffffffff8023f6c7>] wake_bit_function+0x0/0x23
[ 232.124128] [<ffffffffa00612e3>] :ext3:ext3_find_entry+0x3f3/0x5d5
[ 232.124135] [<ffffffff8026c44c>] mark_page_accessed+0x18/0x2b
[ 232.124141] [<ffffffff802abf64>] __getblk+0x1d/0x222
[ 232.124153] [<ffffffffa005cb1b>] :ext3:__ext3_get_inode_loc+0xf9/0x2ac
[ 232.124167] [<ffffffffa0062c72>] :ext3:ext3_lookup+0x31/0xc9
[ 232.124173] [<ffffffff8029b826>] d_alloc+0x15b/0x1c7
[ 232.124179] [<ffffffff802919c5>] do_lookup+0xd7/0x1c1
[ 232.124186] [<ffffffff80293cdb>] __link_path_walk+0x96f/0xdfa
[ 232.124193] [<ffffffff80294028>] __link_path_walk+0xcbc/0xdfa
[ 232.124198] [<ffffffff8026908d>] get_page_from_freelist+0xde/0x518
[ 232.124204] [<ffffffff802941ac>] path_walk+0x46/0x8b
[ 232.124210] [<ffffffff802944d8>] do_path_lookup+0x158/0x1ce
[ 232.124215] [<ffffffff8029501b>] __path_lookup_intent_open+0x56/0x97
[ 232.124221] [<ffffffff80295151>] do_filp_open+0x9c/0x7c4
[ 232.124228] [<ffffffff8028893f>] get_unused_fd_flags+0x74/0x13f
[ 232.124234] [<ffffffff80288a50>] do_sys_open+0x46/0xc3
[ 232.124239] [<ffffffff8020b528>] system_call+0x68/0x6d
[ 232.124244] [<ffffffff8020b4c0>] system_call+0x0/0x6d
[ 232.124248]
[ 251.318307] INFO: task getty:1268 blocked for more than 120 seconds.
[ 251.318314] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 251.318320] getty D ffffffff80449f00 0 1268 1
[ 251.318327] ffff88000e707bc8 0000000000000286 ffff88000e130dd0 ffffffff8037e2cb
[ 251.318338] ffff88000fd7b7c0 ffffffff804fe460 ffff88000fd7ba40 000000008020e810
[ 251.318348] 0000000000000000 ffff88000e1597a8 0000000000000f88 ffff88008162d000
[ 251.318355] Call Trace:
[ 251.318362] [<ffffffff8037e2cb>] gnttab_free_grant_references+0x19/0x87
[ 251.318369] [<ffffffff8020e911>] xen_clocksource_read+0xd/0x9c
[ 251.318375] [<ffffffff80265ed3>] sync_page_killable+0x0/0x30
[ 251.318380] [<ffffffff80243f2e>] getnstimeofday+0x39/0x98
[ 251.318387] [<ffffffff80265ed3>] sync_page_killable+0x0/0x30
[ 251.318395] [<ffffffff80434a5f>] io_schedule+0x5c/0x9e
[ 251.318400] [<ffffffff802646fd>] sync_page+0x3c/0x41
[ 251.318406] [<ffffffff80265edc>] sync_page_killable+0x9/0x30
[ 251.318411] [<ffffffff80434bd2>] __wait_on_bit_lock+0x36/0x66
[ 251.318417] [<ffffffff8026464a>] __lock_page_killable+0x5e/0x64
[ 251.318423] [<ffffffff8023f6c7>] wake_bit_function+0x0/0x23
[ 251.318429] [<ffffffff802661fd>] generic_file_aio_read+0x2fa/0x4b2
[ 251.318436] [<ffffffff8028a23b>] do_sync_read+0xc9/0x10c
[ 251.318444] [<ffffffff8023f699>] autoremove_wake_function+0x0/0x2e
[ 251.318451] [<ffffffff802789b8>] __vma_link+0x42/0x4b
[ 251.318457] [<ffffffff8028aa2c>] vfs_read+0xaa/0x152
[ 251.318463] [<ffffffff8028e2a9>] kernel_read+0x38/0x4c
[ 251.318468] [<ffffffff8028f6b8>] do_execve+0xf1/0x215
[ 251.318474] [<ffffffff80209425>] sys_execve+0x35/0x4c
[ 251.318479] [<ffffffff8020b970>] stub_execve+0x40/0x70
[ 251.318485]
[ 253.498342] INFO: task kjournald:587 blocked for more than 120 seconds.
[ 253.498349] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 253.498355] kjournald D ffffffff80449f00 0 587 2
[ 253.498362] ffff8800016c7d30 0000000000000246 ffff88000e159b78 0000000000000d5a
[ 253.498370] ffff88000fc3a080 ffffffff804fe460 ffff88000fc3a300 000000008020e810
[ 253.498383] ffff8800020709a0 ffff88000e159b68 0000000000000fa4 ffff88008162d000
[ 253.498390] Call Trace:
[ 253.498397] [<ffffffff8020e911>] xen_clocksource_read+0xd/0x9c
[ 253.498403] [<ffffffff80243f2e>] getnstimeofday+0x39/0x98
[ 253.498409] [<ffffffff802ac72a>] sync_buffer+0x0/0x3f
[ 253.498414] [<ffffffff80434a5f>] io_schedule+0x5c/0x9e
[ 253.498421] [<ffffffff802ac765>] sync_buffer+0x3b/0x3f
[ 253.498426] [<ffffffff80434cba>] __wait_on_bit+0x40/0x6e
[ 253.498433] [<ffffffff802ac72a>] sync_buffer+0x0/0x3f
[ 253.498438] [<ffffffff80434d54>] out_of_line_wait_on_bit+0x6c/0x78
[ 253.498444] [<ffffffff8023f6c7>] wake_bit_function+0x0/0x23
[ 253.498455] [<ffffffffa004a196>] :jbd:__journal_file_buffer+0xb5/0x154
[ 253.498465] [<ffffffffa004c426>] :jbd:journal_commit_transaction+0x527/0xe5d
[ 253.498471] [<ffffffff80235c38>] lock_timer_base+0x26/0x4b
[ 253.498477] [<ffffffff80235cae>] try_to_del_timer_sync+0x51/0x5a
[ 253.498488] [<ffffffffa004fba5>] :jbd:kjournald+0xd5/0x25a
[ 253.498495] [<ffffffff8023f699>] autoremove_wake_function+0x0/0x2e
[ 253.498504] [<ffffffffa004fad0>] :jbd:kjournald+0x0/0x25a
[ 253.498510] [<ffffffff8023f56b>] kthread+0x47/0x74
[ 253.498516] [<ffffffff8022839f>] schedule_tail+0x27/0x5c
[ 253.498521] [<ffffffff8020be28>] child_rip+0xa/0x12
[ 253.498527] [<ffffffff8023f524>] kthread+0x0/0x74
[ 253.498532] [<ffffffff8020be1e>] child_rip+0x0/0x12

-----

Any ideas would be appreciated and thanks for your help with the tutorial.

Regards,

Alex
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