VirtualBox

Ticket #7764 (closed defect: fixed)

Opened 3 years ago

Last modified 11 months ago

Guest system stuck in IOWAIT for tens of seconds periodically

Reported by: pwaller Owned by:
Priority: major Component: virtual disk
Version: VirtualBox 3.2.10 Keywords: fsync IOWAIT
Cc: Guest type: Linux
Host type: Windows

Description (last modified by aeichner) (diff)

My experience using VirtualBox is significantly degraded because many times a day (sometimes more often than others), the whole virtual machine (or individual programs) will freeze, sometimes for as long a as a minute. In the system monitor I could see that the system was in IOWAIT, so I ran latencytop.

I have attached a screenshot for one of the shorter freezes, but I have seen the wait as long as 45,000 seconds.

Attachments

Ubuntu-2010-11-26-13-23-59.log Download (59.0 KB) - added by pwaller 3 years ago.
Virtualbox Log
Screenshot-LatencyTOP 0.5.png Download (102.7 KB) - added by pwaller 3 years ago.
Screenshot from LatencyTop

Change History

Changed 3 years ago by pwaller

Virtualbox Log

Changed 3 years ago by pwaller

Screenshot from LatencyTop

comment:1 in reply to: ↑ description Changed 3 years ago by pwaller

Replying to pwaller:

I have attached a screenshot for one of the shorter freezes, but I have seen the wait as long as 45,000 seconds.

Typo: I meant milliseconds here.

comment:2 Changed 3 years ago by pwaller

I should also have mentioned the guest system is, and the guest is Windows 7.

$ uname -srvmpio Linux 2.6.35-23-generic # 40-Ubuntu SMP Wed Nov 17 22:14:33 UTC 2010 x86_64 unknown unknown GNU/Linux

comment:3 Changed 11 months ago by aeichner

  • Status changed from new to closed
  • Resolution set to fixed
  • Description modified (diff)

Closing, please reopen if still relevant with the latest VirtualBox release.

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