Comment 10 for bug 1371591
Revision history for this message
| Bruce Lucas (bruce-lucas) wrote Re: file not initialized to 0s under some conditions on VMWare | #10 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
0e1f616
(Get the code!)
By the way, a couple more pieces of information that may be relevant:
The problem is sensitive to the particular pattern of access to map0. If you remove either of the two writes (at 0x0 and 0x7000) the problem disappears, or if you change 0x7000 to a higher page it also disappears.
We also observed a message about a WRITE SAME failure in syslog. I believe this means that the platform does not implement SCSI WRITE SAME, which I imagine would be used to zero pages under some circumstances, but instead uses a fallback of "manually" zeroing the pages. Perhaps there is a problem in this area?