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Bug#645827: marked as done (linux-image-2.6.32-5-xen-686: new in 2.6.32-38: running in pv domU, VM is freezed after being restored)



Your message dated Wed, 23 Nov 2011 17:40:04 +0000
with message-id <20111123174004.GU3366@decadent.org.uk>
and subject line Re: Bug#649742: Virtual machine with linux-image-2.6.32-5-amd64 hang-up after live migrate on XCP
has caused the Debian Bug report #649742,
regarding linux-image-2.6.32-5-xen-686: new in 2.6.32-38: running in pv domU, VM is freezed after being restored
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
649742: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649742
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: linux-2.6
Version: 2.6.32-38
Severity: important

This bug was not present in 2.6.32-35squeeze2.

My setup: 64bit squeeze dom0, 32bit PV squeeze domU.
When kernel 2.6.32-38 is running in the domU, domU cant be saved/restored successfuly.

VM is mostly freezed after restore. VM answers to ping. I can issue ssh commands but
interactive ssh is broken (strange, do not get replys). xm shutdown hangs.
If I add vcpu=2 in vm.cfg, vm is completely frozen, doesnt answer to ping or give ssh access.

I can reproduce on 3 dom0 and all VM on these hosts (all 64bit dom0 + 32bit squeeze domU).
CPUs are P4-era dualcore pentium D.

I cant find anything interesting in xen logs on dom0 (I get the same output for 2.6.32-38 kernel (freezing) or
2.6.32-35squeeze2 kernel (working)). Please ask for other logs/informations... I cant find anything relevant to
include.

Reverting to 2.6.32-35squeeze2 in domU fixes the problem (still running 2.6.32-38 in dom0).

Anyone with a similar setup to confirm or disprove the problem?

-- Package-specific info:
** Version:
Linux version 2.6.32-5-xen-686 (Debian 2.6.32-38) (ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Mon Oct 3 09:00:14 UTC 2011

** Command line:
root=UUID=fbdc829b-2464-444f-8c9a-4a9b8f49d3da ro  quiet root=/dev/xvda ro 

** Not tainted

** Kernel log:
[    0.004000] CPU: Trace cache: 12K uops, L1 D cache: 16K
[    0.004000] CPU: L2 cache: 1024K
[    0.004000] CPU: Unsupported number of siblings 2
[    0.004000] Performance Events: no PMU driver, software events only.
[    0.004000] SMP alternatives: switching to UP code
[    0.004000] Freeing SMP alternatives: 14k freed
[    0.004380] Brought up 1 CPUs
[    0.004396] CPU0 attaching NULL sched-domain.
[    0.004655] devtmpfs: initialized
[    0.005574] Grant table initialized
[    0.005582] regulator: core version 0.5
[    0.005683] NET: Registered protocol family 16
[    0.007045] PCI: setting up Xen PCI frontend stub
[    0.008137] bio: create slab <bio-0> at 0
[    0.008274] ACPI: Interpreter disabled.
[    0.008348] xen_balloon: Initialising balloon driver with page order 0.
[    0.008443] vgaarb: loaded
[    0.008594] PCI: System does not support PCI
[    0.008601] PCI: System does not support PCI
[    0.008753] Switching to clocksource xen
[    0.011803] pnp: PnP ACPI: disabled
[    0.011811] PnPBIOS: Disabled
[    0.012000] NET: Registered protocol family 2
[    0.012000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.012000] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[    0.012000] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.012043] TCP: Hash tables configured (established 4096 bind 4096)
[    0.012050] TCP reno registered
[    0.012164] NET: Registered protocol family 1
[    0.012260] Unpacking initramfs...
[    0.058855] Freeing initrd memory: 20796k freed
[    0.072675] platform rtc_cmos: registered platform RTC device (no PNP device found)
[    0.072980] audit: initializing netlink socket (disabled)
[    0.073004] type=2000 audit(1318958543.752:1): initialized
[    0.077110] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.079670] VFS: Disk quotas dquot_6.5.2
[    0.079763] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.079922] msgmni has been set to 241
[    0.080388] alg: No test for stdrng (krng)
[    0.080519] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    0.080527] io scheduler noop registered
[    0.080533] io scheduler anticipatory registered
[    0.080538] io scheduler deadline registered
[    0.080614] io scheduler cfq registered (default)
[    0.080906] isapnp: ISA Plug & Play support disabled
[    0.090660] registering netback
[    0.093899] Linux agpgart interface v0.103
[    0.094099] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.094527] PNP: No PS/2 controller found. Probing ports directly.
[    0.095383] i8042.c: No controller found.
[    0.095487] mice: PS/2 mouse device common for all mice
[    0.095695] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
[    0.095819] cpuidle: using governor ladder
[    0.095826] cpuidle: using governor menu
[    0.095838] No iBFT detected.
[    0.096339] TCP cubic registered
[    0.096576] NET: Registered protocol family 10
[    0.097758] Mobile IPv6
[    0.097766] NET: Registered protocol family 17
[    0.097798] Using IPI No-Shortcut mode
[    0.097935] PM: Resume from disk failed.
[    0.097958] registered taskstats version 1
[    0.097980] XENBUS: Device with no driver: device/vbd/51712
[    0.097986] XENBUS: Device with no driver: device/vbd/51728
[    0.097992] XENBUS: Device with no driver: device/vbd/51744
[    0.097997] XENBUS: Device with no driver: device/vif/0
[    0.098003] XENBUS: Device with no driver: device/console/0
[    0.098035] /build/buildd-linux-2.6_2.6.32-38-i386-G9QRBd/linux-2.6-2.6.32/debian/build/source_i386_xen/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    0.098089] Initalizing network drop monitor service
[    0.098151] Freeing unused kernel memory: 404k freed
[    0.099748] Write protecting the kernel text: 2640k
[    0.100252] Write protecting the kernel read-only data: 964k
[    0.156292] udev[47]: starting version 164
[    0.262526] Initialising Xen virtual ethernet driver.
[    0.332160] blkfront: xvda: barriers enabled
[    0.337017]  xvda:
[    0.340133] Setting capacity to 4194304
[    0.340149] xvda: detected capacity change from 0 to 2147483648
[    0.340901] blkfront: xvdb: barriers enabled
[    0.342916]  xvdb: unknown partition table
[    0.371728] Setting capacity to 524288
[    0.371742] xvdb: detected capacity change from 0 to 268435456
[    0.373268] blkfront: xvdc: barriers enabled
[    0.375863]  xvdc: unknown partition table
[    0.391844] Setting capacity to 12582912
[    0.391858] xvdc: detected capacity change from 0 to 6442450944
[    0.640696] EXT3-fs: INFO: recovery required on readonly filesystem.
[    0.640705] EXT3-fs: write access will be enabled during recovery.
[    0.681684] kjournald starting.  Commit interval 5 seconds
[    0.681706] EXT3-fs: recovery complete.
[    0.682586] EXT3-fs: mounted filesystem with ordered data mode.
[    1.861273] udev[148]: starting version 164
[    2.249812] input: PC Speaker as /devices/platform/pcspkr/input/input0
[    2.527248] Error: Driver 'pcspkr' is already registered, aborting...
[    2.711530] Adding 262136k swap on /dev/xvdb.  Priority:-1 extents:1 across:262136k SS
[    2.862522] EXT3 FS on xvda, internal journal
[    3.754772] kjournald starting.  Commit interval 5 seconds
[    3.758794] EXT3 FS on xvdc, internal journal
[    3.758811] EXT3-fs: mounted filesystem with ordered data mode.
[   15.064035] eth0: no IPv6 routers present

** Model information
not available

** Loaded modules:
Module                  Size  Used by
evdev                   5609  0 
snd_pcm                47402  0 
snd_timer              12270  1 snd_pcm
snd                    34423  2 snd_pcm,snd_timer
soundcore               3450  1 snd
snd_page_alloc          5109  1 snd_pcm
pcspkr                  1207  0 
ext3                   94384  2 
jbd                    32309  1 ext3
mbcache                 3762  1 ext3
xen_netfront           13645  0 
xen_blkfront            8347  3 

** PCI devices:
not available

** USB devices:
not available


-- System Information:
Debian Release: 6.0.3
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-xen-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-5-xen-686 depends on:
ii  debconf [debconf-2.0]         1.5.36.1   Debian configuration management sy
ii  initramfs-tools               0.98.8     tools for generating an initramfs
ii  linux-base                    2.6.32-38  Linux image base package
ii  module-init-tools             3.12-1     tools for managing Linux kernel mo

Versions of packages linux-image-2.6.32-5-xen-686 recommends:
ii  firmware-linux-free           2.6.32-38  Binary firmware for various driver
ii  libc6-xen                     2.11.2-10  Embedded GNU C Library: Shared lib

Versions of packages linux-image-2.6.32-5-xen-686 suggests:
pn  grub                          <none>     (no description available)
pn  linux-doc-2.6.32              <none>     (no description available)

Versions of packages linux-image-2.6.32-5-xen-686 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
pn  firmware-ralink               <none>     (no description available)
pn  xen-hypervisor                <none>     (no description available)

-- debconf information:
  linux-image-2.6.32-5-xen-686/postinst/depmod-error-initrd-2.6.32-5-xen-686: false
  linux-image-2.6.32-5-xen-686/postinst/ignoring-do-bootloader-2.6.32-5-xen-686:
  linux-image-2.6.32-5-xen-686/prerm/removing-running-kernel-2.6.32-5-xen-686: true
  linux-image-2.6.32-5-xen-686/postinst/missing-firmware-2.6.32-5-xen-686:



--- End Message ---
--- Begin Message ---
Version: 2.6.32-39

Fixed in the above version, which is in stable-proposed-updates
(but should really be added to stable-updates...)

Ben.

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
                                                              - Albert Camus


--- End Message ---

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