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Old 11-08-2010, 10:53 AM
Tecnici
 
Default Bug#600992: closed by maximilian attems (Bug#600992: fixed in linux-2.6 2.6.32-27)

Greetings,

with the new kernel (*-27) the live migration completes without error on
the dom0 but on the domU migration from xen1 to xen2 works but whenever
I try the other way around the domU spits the following stack trace:


[157949.641828] BUG: unable to handle kernel paging request at
00007f11dc370180

[157949.641828] IP: [<ffffffff810327d2>] fill_pmd+0xe/0xec
[157949.641828] PGD 0
[157949.641828] Oops: 0000 [#1] SMP
[157949.641828] last sysfs file: /sys/module/parport/initstate
[157949.641828] CPU 0
[157949.641828] Modules linked in: ppdev lp parport evdev ext3 jbd
mbcache dm_mod raid1 md_mod xen_netfront xen_blkfront

[157949.641828] Pid: 2936, comm: kstop/0 Not tainted 2.6.32-5-xen-amd64 #1
[157949.641828] RIP: e030:[<ffffffff810327d2>] [<ffffffff810327d2>]
fill_pmd+0xe/0xec

[157949.641828] RSP: e02b:ffff88000f203d40 EFLAGS: 00010082
[157949.641828] RAX: 0000000000000ff8 RBX: ffffffffff57b000 RCX:
ffffffffff57b000
[157949.641828] RDX: 800000008ac55063 RSI: ffffffffff57b000 RDI:
ffffc7fffffffff8
[157949.641828] RBP: ffffc7fffffffff8 R08: 0000000000000000 R09:
7fffffffffffffff
[157949.641828] R10: ffffffff8100e5b5 R11: ffffc90000082000 R12:
ffffffffff57b000
[157949.641828] R13: ffff8800033f5ee0 R14: ffff88000ee82a60 R15:
ffff88000ee82a60
[157949.641828] FS: 00007fb68931e700(0000) GS:ffff8800033d8000(0000)
knlGS:0000000000000000

[157949.641828] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[157949.641828] CR2: 00007f11dc370180 CR3: 000000000fecb000 CR4:
0000000000002660
[157949.641828] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[157949.641828] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[157949.641828] Process kstop/0 (pid: 2936, threadinfo ffff88000f202000,
task ffff88000ee82a60)

[157949.641828] Stack:
[157949.641828] ffffc90000082000 ffffffff8100c287 ffffffffff57b000
0000000000000884
[157949.641828] <0> 800000008ac55063 ffffffff810328d1 00000000899d8067
800000008ac55063
[157949.641828] <0> ffffffff81001000 800000008ac55063 ffff8800033f5ed8
ffffffff810369db

[157949.641828] Call Trace:
[157949.641828] [<ffffffff8100c287>] ?
__raw_callee_save_xen_pgd_val+0x11/0x1e

[157949.641828] [<ffffffff810328d1>] ? set_pte_vaddr_pud+0x21/0x4b
[157949.641828] [<ffffffff810369db>] ? __native_set_fixmap+0x24/0x2c
[157949.641828] [<ffffffff8100d009>] ? xen_set_fixmap+0xcc/0xfb
[157949.641828] [<ffffffff8100c39e>] ? pfn_to_mfn+0xe/0x22
[157949.641828] [<ffffffff8100bedf>] ? xen_setup_shared_info+0x2d/0x56
[157949.641828] [<ffffffff8100ef5d>] ? xen_post_suspend+0x11/0x90
[157949.641828] [<ffffffff811f3083>] ? xen_suspend+0x9a/0xc4
[157949.641828] [<ffffffff8108ba3e>] ? stop_cpu+0x83/0xc6
[157949.641828] [<ffffffff810625ff>] ? worker_thread+0x188/0x21d
[157949.641828] [<ffffffff8108b9bb>] ? stop_cpu+0x0/0xc6
[157949.641828] [<ffffffff81065c2a>] ? autoremove_wake_function+0x0/0x2e
[157949.641828] [<ffffffff81062477>] ? worker_thread+0x0/0x21d
[157949.641828] [<ffffffff8106595d>] ? kthread+0x79/0x81
[157949.641828] [<ffffffff81012baa>] ? child_rip+0xa/0x20
[157949.641828] [<ffffffff81011d61>] ? int_ret_from_sys_call+0x7/0x1b
[157949.641828] [<ffffffff8101251d>] ? retint_restore_args+0x5/0x6
[157949.641828] [<ffffffff81012ba0>] ? child_rip+0x0/0x20
[157949.641828] Code: 00 00 48 ba 00 f0 ff ff ff 3f 00 00 41 5a 49 8d 04
04 48 21 d1 5b 5d 48 01 c8 41 5c c3 41 54 49 89 f4 55 48 89 fd 53 48 83
ec 10 <48> 83 3f 00 0f 85 95 00 00 00 e8 23 57 2c 00 48 89 c7 48 89 c3

[157949.641828] RIP [<ffffffff810327d2>] fill_pmd+0xe/0xec
[157949.641828] RSP <ffff88000f203d40>
[157949.641828] CR2: 00007f11dc370180
[157949.641828] ---[ end trace 728cde46d51bd637 ]---
[157949.641828] ------------[ cut here ]------------
[157949.641828] WARNING: at
/build/mattems-linux-2.6_2.6.32-27-amd64-IsDpkI/linux-2.6-2.6.32/debian/build/source_amd64_xen/kernel/time/timekeeping.c:249
ktime_get+0x22/0xb7()
[157949.641828] Modules linked in: ppdev lp parport evdev ext3 jbd
mbcache dm_mod raid1 md_mod xen_netfront xen_blkfront
[157949.641828] Pid: 0, comm: swapper Tainted: G D
2.6.32-5-xen-amd64 #1

[157949.641828] Call Trace:
[157949.641828] [<ffffffff8106d1ab>] ? ktime_get+0x22/0xb7
[157949.641828] [<ffffffff8106d1ab>] ? ktime_get+0x22/0xb7
[157949.641828] [<ffffffff8104edac>] ? warn_slowpath_common+0x77/0xa3
[157949.641828] [<ffffffff8106d1ab>] ? ktime_get+0x22/0xb7
[157949.641828] [<ffffffff810716b1>] ? tick_nohz_stop_sched_tick+0x6f/0x335
[157949.641828] [<ffffffff81010e82>] ? cpu_idle+0x73/0xda
[157949.641828] [<ffffffff81506cd1>] ? start_kernel+0x3dc/0x3e8
[157949.641828] [<ffffffff81508c7d>] ? xen_start_kernel+0x57c/0x581
[157949.641828] ---[ end trace 728cde46d51bd638 ]---

if there is anything else we can provide let us know



Il 30/10/2010 23:39, Debian Bug Tracking System ha scritto:

This is an automatic notification regarding your Bug report
which was filed against the linux-2.6 package:

#600992: linux-image-2.6.32-5-xen-amd64: cannot save or migrate domU with xen kernel 2.6.32-25 and 2.6.32-26

It has been closed by maximilian attems<maks@debian.org>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact maximilian attems<maks@debian.org> by
replying to this email.







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