Ticket #8826 (closed defect: fixed)
Bad HD Writes in OEL5.6 => Fixed in SVN
| Reported by: | paul.lienhard | Owned by: | |
|---|---|---|---|
| Component: | virtual disk | Version: | VirtualBox 4.0.6 |
| Keywords: | Cc: | ||
| Guest type: | other | Host type: | Windows |
Description
I'm getting regular invalid writes to the disk (reads seem to be OK) when running OEL 5.6 and giving it a large hunk of memory (6144megs) but do not see the problem when giving it 2048megs or less. The error occurs with the "use host I/O cache" option both on and off.
I've written a shell script to reproduce the error and have seen it occur on multiple host machines (although all windows 7 64bit) on virtual box 4.0.4 and 4.0.6, and have run memtest to confirm that it's not bad RAM.
Attachments
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VBox.log
(48.1 KB) -
added by paul.lienhard 12 years ago.
- VBox.log from a running machine that had had the write to hd error
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bug.sh
(510 bytes) -
added by paul.lienhard 12 years ago.
- A quick shell script that writes a 1meg file from /dev/random and then does a cp then diff 1700 times, and then repeates 100 times.
Change History
Changed 12 years ago by paul.lienhard
-
attachment
bug.sh
added
A quick shell script that writes a 1meg file from /dev/random and then does a cp then diff 1700 times, and then repeates 100 times.
comment:1 Changed 12 years ago by paul.lienhard
The issue seems to be within the SATA Controller, when I swap the .vdi over from the SATA controller to the IDE controller the issue goes away.
comment:3 Changed 12 years ago by frank
Thanks for the testcase, we were able to reproduce this bug. Question is still if this is related to Oracle Linux 5 guests or if the same happens with other guests as well. We will do more tests.
comment:4 Changed 12 years ago by frank
We think we found and fixed the bug. Could you install this test build and check if your problem is fixed?
VBox.log from a running machine that had had the write to hd error