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Ticket Resolution Summary Owner Reporter
#8221 fixed BLKCACHE_IOERR after creating snapshots. => fixed in svn/4.0.4 jptech
Description

I get a BLKCACHE_IOERR after creating a 2nd snapshot on one of my VMs. It causes the VM to switch into suspended state when trying to boot the guest. Others have reported a similar problem here:

http://forums.virtualbox.org/viewtopic.php?f=6&t=38523

Some things that may be relevant:

  • The VM was imported from an appliance that I created (VMDK disk)
  • Everything works ok if I enable Use host I/O cache on my VM
  • I'm using an AHCI SATA controller in my VM.

I experience this problem by doing the following:

  • create a minimal guest installation
  • export the guest as an appliance
  • import the appliance as a new VM
  • work on guest
  • stop guest
  • snapshot 1
  • start guest
  • work on guest
  • stop guest
  • snapshot 2
  • error starting guest

I'm using a Windows 7 64bit host and an Ubuntu 10.04.1 (i386) guest. All of my virtual machine disk files are writable and I have >150GB free on the (host) disk.

#11030 wontfix BLKCACHE_IOERR error pauses VM JJ
Description

BLKCACHE_IOERR observed and it paused the VM. Please check the log for details. The disk space is enough on both host OS (windows 7) and VM OS (Oracle Linux), please refer to the screenshot for "df -h" command.

#12779 worksforme BLKCACHE_IOERR on Fedora Linux F20 3.13.5-200.fc20.x86_64 Groovie
Description

Dear sirs,

after upgrading to 3.13.5-200.fc20.x86_64 i ran into problems with my USP3 mounted SSD drive. This did not happened before, so it should be a problem with the recent kernel update.

[configuration]: Host: Fedora Linux F20 VM: Windows 7 with

  • a mapped C: drive vmdk file
  • a mounted c:\usp device over usb3 as a map device

Before you ask: why this configuration: The portable ssd device contains my development environment, that i share between home and my office. It worked good before the recent kernel update.

After some time, i'll get a:

Während der Ausführung der virtuellen Maschine ist ein Fehler aufgetreten. Einzelheiten werden unten gezeigt. Sie können versuchen, den angezeigten Fehler zu beheben und mit der Ausführung fortzufahren.

The I/O cache encountered an error while updating data in medium "ahci-0-1" (rc=VERR_DEV_IO_ERROR). Make sure there is enough free space on the disk and that the disk is working properly. Operation can be resumed afterwards.

Fehler ID: BLKCACHE_IOERR Dringlichkeit:Normaler Fehler

There is enough disk space on all devives (approx 16 to 30% usage).

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