[Qemu-devel] [Bug 1254940] [NEW] qemu-KVM guest OS occurs many ext3-fs errors after multiple forced shutdown

[benjamin_zb]

Public bug reported:

Hi:
I met some filesysterm errors in a sles guest on KVM. My system environment is:
HOST:
   suse 10, the kernel version is 2.6.32.43
   Qemu-KVM 1.2
   Libvirt 1.0
guest OS:
   suse 10, the kernel version is 2.6.32.43
VMs use a qcow2 disk.

Description of problem:
I have 20+ VMs with qcow2 disk, these VMs have been forced to shut down by
"virsh destroy" many times during and after VM installation.
When these vm reboot,dmesg show a ext3-fs mount error occurred on /usr/local
partion /dev/vda3:
    EXT3-fs warning: mounting fs with errors, running e2fsck is recommendedand
when I wrote into partion /dev/vda3,some errors occurred in dmesg:
1.error (device vda3): ext3_free_blocks: Freeing blocks not in datazone - block
= 1869619311, count = 1error (device vda3): ext3_free_blocks_sb: bit already
cleared for block 2178152error (device vda3): ext3_readdir: bad entry in
directory #1083501:
2.[347470.661893] attempt to access beyond end of device[347470.661896] vda3:
rw=0, want=6870892952, limit=41945715[347470.661897] EXT3-fs error (device
vda3): ext3_free_branches: Read failure, inode=1083508, block=858861618
3.EXT3-fs error (device vda3): ext3_new_block: block(4295028581) >= blocks
count(-1) - block_group = 1, es == ffff88021b6c7400

I suspect this fs-error is caused by multiple forced shutdown, but I can't
reproduce this bug now.

Could anyone has an idea or suggestion to help me?

Thanks in Advance
Regards
Ben

Steps to Reproduce:
I can't reproduce this bug now.

additional:
1.multiple forced shutdown during and after the vm installing
2.vm with qcow2 disk
3.different vm dmesg different errors in above error list(1/2/3)

** Affects: qemu
     Importance: Undecided
     Assignee: benjamin_zb (zhuben1989)
         Status: New

** Description changed:

  Hi:
  I met some filesysterm errors in a sles guest on KVM. My system environment 
is:
- HOST: 
-    suse 10, the kernel version is 2.6.32.43 
-    Qemu-KVM 1.2 
-    Libvirt 1.0
- guest OS: 
-    suse 10, the kernel version is 2.6.32.43
- VMs use a qcow2 disk. 
+ HOST:
+    suse 10, the kernel version is 2.6.32.43
+    Qemu-KVM 1.2
+    Libvirt 1.0
+ guest OS:
+    suse 10, the kernel version is 2.6.32.43
+ VMs use a qcow2 disk.
  
  Description of problem:
  I have 20+ VMs with qcow2 disk, these VMs have been forced to shut down by
  "virsh destroy" many times during and after VM installation.
  When these vm reboot,dmesg show a ext3-fs mount error occurred on /usr/local
  partion /dev/vda3:
-     EXT3-fs warning: mounting fs with errors, running e2fsck is recommendedand
+     EXT3-fs warning: mounting fs with errors, running e2fsck is recommendedand
  when I wrote into partion /dev/vda3,some errors occurred in dmesg:
  1.error (device vda3): ext3_free_blocks: Freeing blocks not in datazone - 
block
  = 1869619311, count = 1error (device vda3): ext3_free_blocks_sb: bit already
  cleared for block 2178152error (device vda3): ext3_readdir: bad entry in
- directory #1083501: 
+ directory #1083501:
  2.[347470.661893] attempt to access beyond end of device[347470.661896] vda3:
  rw=0, want=6870892952, limit=41945715[347470.661897] EXT3-fs error (device
  vda3): ext3_free_branches: Read failure, inode=1083508, block=858861618
  3.EXT3-fs error (device vda3): ext3_new_block: block(4295028581) >= blocks
  count(-1) - block_group = 1, es == ffff88021b6c7400
  
  I suspect this fs-error is caused by multiple forced shutdown, but I can't
  reproduce this bug now.
  
  Could anyone has an idea or suggestion to help me?
  
  Thanks in Advance
  Regards
- Ben 
- 
- Reproducible: Always
+ Ben
  
  Steps to Reproduce:
  I can't reproduce this bug now.
- 
  
  additional:
  1.multiple forced shutdown during and after the vm installing
  2.vm with qcow2 disk
  3.different vm dmesg different errors in above error list(1/2/3)

** Changed in: qemu
     Assignee: (unassigned) => benjamin_zb (zhuben1989)

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1254940

Title:
  qemu-KVM guest OS occurs many ext3-fs errors after multiple forced
  shutdown

Status in QEMU:
  New

Bug description:
  Hi:
  I met some filesysterm errors in a sles guest on KVM. My system environment 
is:
  HOST:
     suse 10, the kernel version is 2.6.32.43
     Qemu-KVM 1.2
     Libvirt 1.0
  guest OS:
     suse 10, the kernel version is 2.6.32.43
  VMs use a qcow2 disk.

  Description of problem:
  I have 20+ VMs with qcow2 disk, these VMs have been forced to shut down by
  "virsh destroy" many times during and after VM installation.
  When these vm reboot,dmesg show a ext3-fs mount error occurred on /usr/local
  partion /dev/vda3:
      EXT3-fs warning: mounting fs with errors, running e2fsck is recommendedand
  when I wrote into partion /dev/vda3,some errors occurred in dmesg:
  1.error (device vda3): ext3_free_blocks: Freeing blocks not in datazone - 
block
  = 1869619311, count = 1error (device vda3): ext3_free_blocks_sb: bit already
  cleared for block 2178152error (device vda3): ext3_readdir: bad entry in
  directory #1083501:
  2.[347470.661893] attempt to access beyond end of device[347470.661896] vda3:
  rw=0, want=6870892952, limit=41945715[347470.661897] EXT3-fs error (device
  vda3): ext3_free_branches: Read failure, inode=1083508, block=858861618
  3.EXT3-fs error (device vda3): ext3_new_block: block(4295028581) >= blocks
  count(-1) - block_group = 1, es == ffff88021b6c7400

  I suspect this fs-error is caused by multiple forced shutdown, but I can't
  reproduce this bug now.

  Could anyone has an idea or suggestion to help me?

  Thanks in Advance
  Regards
  Ben

  Steps to Reproduce:
  I can't reproduce this bug now.

  additional:
  1.multiple forced shutdown during and after the vm installing
  2.vm with qcow2 disk
  3.different vm dmesg different errors in above error list(1/2/3)

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1254940/+subscriptions