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Bug#576131: marked as done (VZ migration cause kernel panic)

Your message dated Wed, 7 Apr 2010 00:44:41 +0200
with message-id <20100406224441.GG7863@stro.at>
and subject line Re: openvz fix
has caused the Debian Bug report #576131,
regarding VZ migration cause kernel panic
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
576131: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=576131
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-2.6.32-4-openvz-686
Severity: important

This is a report of the kernel testing that I have conducted.
It worked better than I thought based on that the patch is newly
created.

Starting, stopping and similar operations works fine. But migration
do not. That could be because I do migration from an old kernel
version to a new one, but I assume that should work as well, right?

tigereye:~# vzmigrate -r no --keep-dst --online malakit 1
OPT:-r
OPT:--keep-dst
OPT:--online
OPT:malakit
Starting online migration of CT 1 to malakit
Preparing remote node
Initializing remote quota
vzquota : (warning) Quota file exists, it will be overwritten
Syncing private
Live migrating container...
Syncing 2nd level quota
Error:  Failed to undump container
... and then I rebooted target machine
ssh: connect to host malakit port 22: Connection refused
ssh: connect to host malakit port 22: Connection refused
ssh: connect to host malakit port 22: Connection refused
ssh: connect to host malakit port 22: Connection refused
ssh: connect to host malakit port 22: Connection refused
ssh: connect to host malakit port 22: Connection refused


Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.424028] Stack:
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.422464] last sysfs file: /sys/devices/virtual/net/lo/operstate
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.424028] Process vzctl (pid: 1992, veid: 0, ti=ee10e000 task=e394c000 task.ti=ee10e000)
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.422300] general protection fault: 0000 [#1] SMP 
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.424028] Call Trace:
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.424028] Code: c9 89 d8 6a 00 e8 e3 36 dd ff e8 1e f2 ff ff 89 d8 89 f3 e8 ce 38 dd ff a1 00 5a 36 c1 5e 29 c3 31 c0 85 db 0f 49 c3 8b 54 24 30 <65> 33 15 14 00 00 00 74 05 e8 20 80 dc ff 83 c4 34 5b 5e c3 64 
Message from syslogd@malakit at Thu Apr  1 08:43:29 2010 ...
malakit kernel: [  640.424028] EIP: [<c126f52c>] schedule_timeout+0x9c/0xb0 SS:ESP 0068:ee10fe2c
Container(s) not found
malakit:~# vzctl start 1
Container already locked
malakit:~# vzctl stop 1
Container already locked
malakit:~# reboot

This problem is reproducible.

>From syslog
Apr  1 09:01:00 malakit kernel: [  879.706952] general protection fault: 0000 [#1] SMP
Apr  1 09:01:00 malakit kernel: [  879.707116] last sysfs file: /sys/devices/virtual/net/lo/operstate
Apr  1 09:01:00 malakit kernel: [  879.707208] Modules linked in: vzethdev vznetdev simfs vzrst vzcpt vzdquota vzmon vzdev xt_tcpudp xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_dscp ipt_REJECT ip_tables x_tables ext3 jbd mbcache dm_snapshot dm_mirror dm_region_hash dm_log loop snd_wavefront snd_cs4236 snd_via82xx snd_wss_lib snd_ac97_codec snd_opl3_lib ac97_bus snd_hwdep snd_mpu401 snd_mpu401_uart i2c_viapro snd_pcm snd_timer snd_page_alloc pcspkr psmouse shpchp snd_rawmidi i2c_core serio_raw snd_seq_device pci_hotplug ns558 gameport parport_pc snd soundcore evdev parport processor xfs exportfs dm_mod sd_mod crc_t10dif ata_generic pata_via uhci_hcd ehci_hcd via_rhine libata mii usbcore nls_base scsi_mod floppy button thermal fan thermal_sys [last unloaded: scsi_wait_scan]
Apr  1 09:01:00 malakit kernel: [  879.708020]
Apr  1 09:01:00 malakit kernel: [  879.708020] Pid: 3146, comm: vzctl Not tainted (2.6.32-4-openvz-686 #1) 042test001 KT400A-8237)
Apr  1 09:01:00 malakit kernel: [  879.708020] EIP: 0060:[<c126f52c>] EFLAGS: 00010206 CPU: 0
Apr  1 09:01:00 malakit kernel: [  879.708020] EIP is at schedule_timeout+0x9c/0xb0
Apr  1 09:01:00 malakit kernel: [  879.708020] EAX: 7fffffff EBX: 7fffffff ECX: 00000000 EDX: 956a01f5
Apr  1 09:01:00 malakit kernel: [  879.708020] ESI: ee191ea8 EDI: ee191eac EBP: 7fffffff ESP: ee191e2c
Apr  1 09:01:00 malakit kernel: [  879.708020]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Apr  1 09:01:00 malakit kernel: [  879.708020] Process vzctl (pid: 3146, veid: 0, ti=ee190000 task=ef12c000 task.ti=ee190000)
Apr  1 09:01:00 malakit kernel: [  879.708020] Stack:
Apr  1 09:01:00 malakit kernel: [  879.708020]  00000000 ee191ea8 00000000 00000000 00000000 00000000 0000007b 0000007b
Apr  1 09:01:00 malakit kernel: [  879.708020] <0> 000000d8 00000000 ffffffff c1008c80 956a01f5 ef12c000 ee191ea8 c126f3b9
Apr  1 09:01:00 malakit kernel: [  879.708020] <0> ef12c000 00000002 ee191eac 00000001 ef12c000 c1034101 ee191eb0 ee191eb0
Apr  1 09:01:00 malakit kernel: [  879.708020] Call Trace:
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c1008c80>] ? kernel_thread_helper+0x0/0x10
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c126f3b9>] ? wait_for_common+0xa4/0x100
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c1034101>] ? default_wake_function+0x0/0x8
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<f159ff48>] ? vps_rst_undump+0x328/0x3d8 [vzrst]
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<f159dc9f>] ? rst_ioctl+0x353/0x400 [vzrst]
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10f2a17>] ? proc_reg_unlocked_ioctl+0x8a/0xa3
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<f159d94c>] ? rst_ioctl+0x0/0x400 [vzrst]
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10f298d>] ? proc_reg_unlocked_ioctl+0x0/0xa3
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10c90b0>] ? vfs_ioctl+0x1c/0x5f
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10c9633>] ? do_vfs_ioctl+0x499/0x4e5
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10a8e19>] ? remove_vma+0x57/0x5c
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10a8e19>] ? remove_vma+0x57/0x5c
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c10c96ab>] ? sys_ioctl+0x2c/0x42
Apr  1 09:01:00 malakit kernel: [  879.708020]  [<c1008120>] ? syscall_call+0x7/0xb
Apr  1 09:01:00 malakit kernel: [  879.708020] Code: c9 89 d8 6a 00 e8 e3 36 dd ff e8 1e f2 ff ff 89 d8 89 f3 e8 ce 38 dd ff a1 00 5a 36 c1 5e 29 c3 31 c0 85 db 0f 49 c3 8b 54 24 30 <65> 33 15 14 00 00 00 74 05 e8 20 80 dc ff 83 c4 34 5b 5e c3 64
Apr  1 09:01:00 malakit kernel: [  879.708020] EIP: [<c126f52c>] schedule_timeout+0x9c/0xb0 SS:ESP 0068:ee191e2c
Apr  1 09:01:00 malakit kernel: [  879.716744] ---[ end trace deee59ba9cf41108 ]---

Best regards,

// Ola

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--- End Message ---
--- Begin Message --- 
Version: 2.6.32-11

latest openvz features a fix for both bugs, thus closing.
forgot to add to changelog when uploading.

thanks for your testing.

-- 
maks

--- End Message ---
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