This appears fixed in Natty beta 2, x64 desktop run from cdrom: (2x4 GiB ram)
ubuntu@ubuntu:~$ cd /media/a1dbea37-c813-42a2-9e11-1968bf4b1a87/foxyboy/Desktop/md5/files $ ls -l asingle.avi asingleunzipped.avi anotsparse.avi asingle.zip -rw-r--r-- 1 1000 1000 733906944 2010-11-15 00:11 anotsparse.avi -rw-r--r-- 1 1000 1000 733906944 2010-11-15 00:08 asingle.avi -rw-r--r-- 1 1000 1000 733906944 2010-11-15 00:10 asingleunzipped.avi -rw-r--r-- 1 1000 1000 724419157 2010-11-15 00:13 asingle.zip ubuntu@ubuntu:/media/a1dbea37-c813-42a2-9e11-1968bf4b1a87/foxyboy/Desktop/md5/files$ md5sum asingle.avi asingleunzipped.avi anotsparse.avi; (unzip -p asingle.zip | md5sum -) 37b1b5cc322cb3566f8fbd1c7ac46d9a asingle.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a asingleunzipped.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a anotsparse.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a - ubuntu@ubuntu:/media/a1dbea37-c813-42a2-9e11-1968bf4b1a87/foxyboy/Desktop/md5/files$ sudo mkdir /media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421 ubuntu@ubuntu:/media/a1dbea37-c813-42a2-9e11-1968bf4b1a87/foxyboy/Desktop/md5/files$ sudo cp -v asingle.avi asingleunzipped.avi anotsparse.avi asingle.zip /media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/ `asingle.avi' -> `/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/asingle.avi' `asingleunzipped.avi' -> `/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/asingleunzipped.avi' `anotsparse.avi' -> `/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/anotsparse.avi' `asingle.zip' -> `/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/asingle.zip' ubuntu@ubuntu:/media/a1dbea37-c813-42a2-9e11-1968bf4b1a87/foxyboy/Desktop/md5/files$ cd /media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421/ ubuntu@ubuntu:/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421$ md5sum asingle.avi asingleunzipped.avi anotsparse.avi; (unzip -p asingle.zip | md5sum -) 37b1b5cc322cb3566f8fbd1c7ac46d9a asingle.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a asingleunzipped.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a anotsparse.avi 37b1b5cc322cb3566f8fbd1c7ac46d9a - ubuntu@ubuntu:/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421$ date Fri Apr 22 05:09:44 UTC 2011 ubuntu@ubuntu:/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421$ uname -a Linux ubuntu 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux ubuntu@ubuntu:/media/de947ba3-08ad-4c21-b0a5-2c266fdb420b/test-110421$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Natty (development branch) Release: 11.04 Codename: natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/675839 Title: Disk read corrupt on x64 exceeding 4 GiB RAM -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
