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Old 11-20-2009, 05:37 AM
Ola Lundqvist
 
Default Bug#550740: linux-image-2.6.26-2-openvz-amd64: checkpointing openvz resets shared memory to zero

Hi Gerhard

Thanks for pointing this out. Sorry for the late answer but I did not see this
mail in all the others.

It seems like there are a patch available:
http://1342.bugzilla.openvz.org/attachment.cgi?id=1064

It do not look like an ABI breaker to me, but do you have any more information
about this issue please tell.

Best regards,

// Ola

On Mon, Oct 12, 2009 at 06:50:13PM +0200, Gerhard Heift wrote:
> Package: linux-image-2.6.26-2-openvz-amd64
> Version: 2.6.26-19
> Severity: critical
> Justification: causes serious data loss
>
> The checkpoint/restore of vzctl resets shared memory in an openvz container
> to zero if a programm access this shared memory.
>
> More information in the upstream bugreport:
>
> http://bugzilla.openvz.org/show_bug.cgi?id=1342
>
> -- Package-specific info:
> ** Version:
> Linux version 2.6.26-2-openvz-amd64 (Debian 2.6.26-19) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Wed Aug 19 23:15:49 UTC 2009
>
> ** Command line:
> root=/dev/mapper/service-system ro quiet
>
> ** Not tainted
>
> ** Kernel log:
> [ 3.172062] ide0: BM-DMA at 0xfc00-0xfc07
> [ 3.172076] ide1: BM-DMA at 0xfc08-0xfc0f
> [ 3.172086] Probing IDE interface ide0...
> [ 3.551179] hiddev96hidraw0: USB HID v1.10 Device [American Power Conversion Back-UPS BR 800 FW:9.o2 .I USB FW2 ] on usb-0000:00:1d.1-1
> [ 3.551179] usbcore: registered new interface driver usbhid
> [ 3.551179] usbhid: v2.6:USB HID core driver
> [ 4.191959] hda: HL-DT-STDVD-ROM GDR8163B, ATAPI CD/DVD-ROM drive
> [ 4.835552] hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
> [ 4.859479] hda: UDMA/33 mode selected
> [ 4.859479] Probing IDE interface ide1...
> [ 5.470719] ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> [ 5.475160] ide1 at 0x170-0x177,0x376 on irq 15
> [ 6.007116] Driver 'sd' needs updating - please use bus_type methods
> [ 6.007116] sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB)
> [ 6.007116] sd 0:0:0:0: [sda] Write Protect is off
> [ 6.007116] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> [ 6.007116] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 6.007116] sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB)
> [ 6.007116] sd 0:0:0:0: [sda] Write Protect is off
> [ 6.007116] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> [ 6.007116] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 6.007116] sda:<6>hda: ATAPI 52X DVD-ROM drive, 256kB Cache
> [ 6.015160] Uniform CD-ROM driver Revision: 3.20
> [ 6.021160] sda1 sda2
> [ 6.021361] sd 0:0:0:0: [sda] Attached SCSI disk
> [ 6.218508] md: raid0 personality registered for level 0
> [ 6.229939] md: md0 stopped.
> [ 6.234816] md: bind<sda1>
> [ 6.246839] md0: setting max_sectors to 128, segment boundary to 32767
> [ 6.246839] raid0: looking at sda1
> [ 6.246839] raid0: comparing sda1(240832) with sda1(240832)
> [ 6.246839] raid0: END
> [ 6.246839] raid0: ==> UNIQUE
> [ 6.246839] raid0: 1 zones
> [ 6.246839] raid0: FINAL 1 zones
> [ 6.246839] raid0: done.
> [ 6.246839] raid0 : md_size is 240832 blocks.
> [ 6.246839] raid0 : conf->hash_spacing is 240832 blocks.
> [ 6.246839] raid0 : nb_zone is 1.
> [ 6.246839] raid0 : Allocating 8 bytes for hash.
> [ 6.247034] md: md1 stopped.
> [ 6.273707] md: bind<sda2>
> [ 6.286009] md1: setting max_sectors to 128, segment boundary to 32767
> [ 6.286009] raid0: looking at sda2
> [ 6.286009] raid0: comparing sda2(488142976) with sda2(488142976)
> [ 6.286009] raid0: END
> [ 6.286009] raid0: ==> UNIQUE
> [ 6.286009] raid0: 1 zones
> [ 6.286009] raid0: FINAL 1 zones
> [ 6.286009] raid0: done.
> [ 6.286009] raid0 : md_size is 488142976 blocks.
> [ 6.286009] raid0 : conf->hash_spacing is 488142976 blocks.
> [ 6.286009] raid0 : nb_zone is 1.
> [ 6.286009] raid0 : Allocating 8 bytes for hash.
> [ 6.357615] device-mapper: uevent: version 1.0.3
> [ 6.358163] device-mapper: ioctl: 4.13.0-ioctl (2007-10-18) initialised: dm-devel@redhat.com
> [ 6.550451] PM: Starting manual resume from disk
> [ 6.607194] kjournald starting. Commit interval 5 seconds
> [ 6.607194] EXT3-fs: mounted filesystem with ordered data mode.
> [ 7.381760] udevd version 125 started
> [ 8.058604] EDAC MC: Ver: 2.1.0 Aug 19 2009
> [ 8.061974] EDAC e752x: tolm = 40000, remapbase = ffc000, remaplimit = 0
> [ 8.062011] EDAC MC0: Giving out device to 'e752x_edac' 'E7525': DEV 0000:00:00.0
> [ 8.062083] EDAC PCI0: Giving out device to module 'e752x_edac' controller 'EDAC PCI controller': DEV '0000:00:00.0' (POLLED)
> [ 8.264979] input: Power Button (FF) as /class/input/input2
> [ 8.329093] ACPI: Power Button (FF) [PWRF]
> [ 8.329291] input: Power Button (CM) as /class/input/input3
> [ 8.378467] ACPI: Power Button (CM) [PWRB]
> [ 8.507541] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [ 8.525388] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
> [ 9.315862] input: PC Speaker as /class/input/input4
> [ 9.337959] intel_rng: FWH not detected
> [ 9.337959] ACPI: PCI Interrupt 0000:00:1f.3[b] -> GSI 17 (level, low) -> IRQ 17
> [ 9.377984] Error: Driver 'pcspkr' is already registered, aborting...
> [ 9.525583] Error: Driver 'pcspkr' is already registered, aborting...
> [ 9.967052] input: ImPS/2 Generic Wheel Mouse as /class/input/input5
> [ 11.271590] EXT3 FS on dm-0, internal journal
> [ 12.016470] loop: module loaded
> [ 12.096415] i2c-adapter i2c-0: Unrecognized version/stepping 0x68 Defaulting to LM85.
> [ 12.159120] i2c-adapter i2c-0: Unrecognized version/stepping 0x69 Defaulting to LM85.
> [ 13.740641] kjournald starting. Commit interval 5 seconds
> [ 13.740641] EXT3 FS on md0, internal journal
> [ 13.740641] EXT3-fs: mounted filesystem with ordered data mode.
> [ 13.784641] kjournald starting. Commit interval 5 seconds
> [ 13.784641] EXT3 FS on dm-1, internal journal
> [ 13.784641] EXT3-fs: mounted filesystem with ordered data mode.
> [ 13.820642] kjournald starting. Commit interval 5 seconds
> [ 13.837382] EXT3 FS on dm-2, internal journal
> [ 13.837389] EXT3-fs: mounted filesystem with ordered data mode.
> [ 13.860642] kjournald starting. Commit interval 5 seconds
> [ 13.866050] EXT3 FS on dm-4, internal journal
> [ 13.866057] EXT3-fs: mounted filesystem with ordered data mode.
> [ 13.933378] Adding 9764856k swap on /dev/mapper/service-swap. Priority:-1 extents:1 across:9764856k
> [ 15.184727] e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
> [ 16.875387] NET: Registered protocol family 10
> [ 17.279085] ip_tables: (C) 2000-2006 Netfilter Core Team
> [ 17.786999] tun: Universal TUN/TAP device driver, 1.6
> [ 17.786999] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
> [ 18.176759] warning: `vzctl' uses deprecated v2 capabilities in a way that may be insecure.
> [ 18.207102] CT: 5: started
>
> ** Loaded modules:
> Module Size Used by
> vzethdev 14720 0
> vznetdev 24456 2
> simfs 8944 1
> vzrst 123048 0
> vzcpt 106424 0
> tun 15492 2 vzrst,vzcpt
> vzdquota 42868 1 [permanent]
> vzmon 31376 5 vzethdev,vznetdev,vzrst,vzcpt
> vzdev 7568 4 vzethdev,vznetdev,vzdquota,vzmon
> xt_tcpudp 7680 0
> xt_length 6400 0
> ipt_ttl 6144 0
> xt_tcpmss 6656 0
> xt_TCPMSS 8576 0
> iptable_mangle 8704 0
> iptable_filter 8320 0
> xt_multiport 7424 0
> xt_limit 7172 0
> xt_dscp 7168 0
> ipt_REJECT 7552 0
> ip_tables 21776 2 iptable_mangle,iptable_filter
> x_tables 25736 10 xt_tcpudp,xt_length,ipt_ttl,xt_tcpmss,xt_TCPMSS,xt _multiport,xt_limit,xt_dscp,ipt_REJECT,ip_tables
> ipv6 296384 35 vzrst,vzcpt,vzmon
> lm85 35492 0
> hwmon_vid 7296 1 lm85
> loop 19340 0
> serio_raw 9988 0
> psmouse 42268 0
> i2c_i801 13596 0
> rng_core 9096 0
> snd_pcsp 14588 0
> i2c_core 27936 2 lm85,i2c_i801
> snd_pcm 81928 1 snd_pcsp
> snd_timer 25744 1 snd_pcm
> snd 63688 3 snd_pcsp,snd_pcm,snd_timer
> soundcore 12064 1 snd
> snd_page_alloc 13072 1 snd_pcm
> shpchp 34080 0
> pci_hotplug 32056 1 shpchp
> button 11680 0
> e752x_edac 16656 0
> edac_core 49560 3 e752x_edac
> evdev 14208 0
> ext3 124816 5
> jbd 51240 1 ext3
> mbcache 12804 1 ext3
> dm_mirror 20608 0
> dm_log 13956 1 dm_mirror
> dm_snapshot 19400 0
> dm_mod 58864 14 dm_mirror,dm_log,dm_snapshot
> raid0 10624 2
> md_mod 80036 3 raid0
> ide_cd_mod 36360 0
> cdrom 37928 1 ide_cd_mod
> sd_mod 29376 3
> ide_pci_generic 9220 0 [permanent]
> piix 12424 0 [permanent]
> ide_core 128156 3 ide_cd_mod,ide_pci_generic,piix
> usbhid 45920 0
> hid 41792 1 usbhid
> ff_memless 9224 1 usbhid
> floppy 61544 0
> ata_piix 22660 2
> ata_generic 10116 0
> e1000 117184 0
> ehci_hcd 36108 0
> libata 165600 2 ata_piix,ata_generic
> scsi_mod 161144 2 sd_mod,libata
> dock 14112 1 libata
> uhci_hcd 25760 0
> thermal 22688 0
> processor 42304 1 thermal
> fan 9352 0
> thermal_sys 17728 3 thermal,processor,fan
>
> ** PCI devices:
> not available
>
>
> -- System Information:
> Debian Release: 5.0.3
> APT prefers stable
> APT policy: (500, 'stable')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 2.6.26-2-openvz-amd64 (SMP w/2 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/bash
>
> Versions of packages linux-image-2.6.26-2-openvz-amd64 depends on:
> ii debconf [debconf-2.0] 1.5.24 Debian configuration management sy
> ii initramfs-tools [linux-initra 0.92o tools for generating an initramfs
> ii module-init-tools 3.4-1 tools for managing Linux kernel mo
> ii vzctl 3.0.22-14 server virtualization solution - c
>
> linux-image-2.6.26-2-openvz-amd64 recommends no packages.
>
> Versions of packages linux-image-2.6.26-2-openvz-amd64 suggests:
> ii grub 0.97-47lenny2 GRand Unified Bootloader (Legacy v
> pn linux-doc-2.6.26 <none> (no description available)
>
> -- debconf information:
> linux-image-2.6.26-2-openvz-amd64/prerm/removing-running-kernel-2.6.26-2-openvz-amd64: true
> shared/kernel-image/really-run-bootloader: true
> linux-image-2.6.26-2-openvz-amd64/preinst/lilo-has-ramdisk:
> linux-image-2.6.26-2-openvz-amd64/preinst/bootloader-initrd-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/postinst/depmod-error-2.6.26-2-openvz-amd64: false
> linux-image-2.6.26-2-openvz-amd64/postinst/old-system-map-link-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/preinst/failed-to-move-modules-2.6.26-2-openvz-amd64:
> linux-image-2.6.26-2-openvz-amd64/postinst/kimage-is-a-directory:
> linux-image-2.6.26-2-openvz-amd64/preinst/lilo-initrd-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/postinst/bootloader-error-2.6.26-2-openvz-amd64:
> linux-image-2.6.26-2-openvz-amd64/postinst/create-kimage-link-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/preinst/initrd-2.6.26-2-openvz-amd64:
> linux-image-2.6.26-2-openvz-amd64/preinst/elilo-initrd-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/postinst/old-dir-initrd-link-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/postinst/bootloader-test-error-2.6.26-2-openvz-amd64:
> linux-image-2.6.26-2-openvz-amd64/preinst/abort-install-2.6.26-2-openvz-amd64:
> linux-image-2.6.26-2-openvz-amd64/preinst/overwriting-modules-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/prerm/would-invalidate-boot-loader-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/postinst/depmod-error-initrd-2.6.26-2-openvz-amd64: false
> linux-image-2.6.26-2-openvz-amd64/postinst/old-initrd-link-2.6.26-2-openvz-amd64: true
> linux-image-2.6.26-2-openvz-amd64/preinst/abort-overwrite-2.6.26-2-openvz-amd64:
>
>
>
> --
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>
>

--
--------------------- Ola Lundqvist ---------------------------
/ opal@debian.org Annebergsslingan 37
| ola@inguza.com 654 65 KARLSTAD |
| http://inguza.com/ +46 (0)70-332 1551 |
gpg/f.p.: 7090 A92B 18FE 7994 0C36 4FE4 18A1 B1CF 0FE5 3DD9 /
---------------------------------------------------------------



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