On Wed, May 18, 2005 at 10:14:07PM +1000, Michael D. Setzer II wrote: > File corruption - Fedora Core 3 > shutdown -r -F now gives no errors. > > Image file created on a P4 system with no problem after > earlier corruption on AMD 64 machine that was working before. > > 13,585,246,488 fc3ll.lzo > > File copied to AMD 64 machine using ncftp no error in copy, > but then fails lzop -t <fc3ll.lzo test with checksum error. > > Then copied file to another system to compare original file to > file from amd 64. > > System was working fine with 4 images, but now fails, on image > creation, > images that worked before, and even trying to blank drive with > dd if=/dev/zero of=/0bits (Machine froze after about 8.3GB) > > Here is the comparision of the bad file versus good file. > Note: all addresses end with 3 and all differences are either > 08 hex or 80 hex? > > The system is less than 1 month old, and is an MSI 6741 > motherboard with a 250GB Maxtor Diamond Max 10 6B250R0 drive. > > Other than this error, which was working earlier with 4 pervious > images, but now even those fail the lzop test. > > Ran the Gyum, and it went thru the install of the new updates with > no problem. > > Any suggestions on what tests might help to find what is causing the > problem. Does it look like motherboard, harddisk, hdparm, etc. mmmmmmmmmmmmm, no, sorry. We did chase problems with random file corruption on Redhat AS 3 using a major brand name server with > 6GB of RAM a while back. Never resolved, ended up sending back server and suing vendor. WHAT WE LEARNED was that iozone was an excellent test. It has a -d diagnostic option, which will compare what was written to what was read. I'd suggest you run that with a test file of at least 3X your RAM or 16GB, whatever comes first. That's now a part of our standard server test before putting anything on the box. > Comparing files fc3ll.lzo and \FC3LL.LZO > Address 64File P4 Diff > 27B5C8B3: 62 E2 80 > 4BE758B3: 2C AC 80 > 4BE761A3: 64 6C 8 > 4BE768D3: 0E 8E 80 > 785F13C3: 05 0D 8 > 785F1943: E5 ED 8 > A1A788B3: 44 C4 80 > F3543943: F3 FB 8 > F35448D3: 6B EB 80 > FE52A1A3: B3 BB 8 > 171BB943: F6 FE 8 > 2ECBA8B3: 6D ED 80 > 4009F8B3: 4C CC 80 > 400A08D3: 17 97 80 > 8E3A71D3: 79 F9 80 > 8E3A73C3: E0 E8 8 > 8E3A78B3: 67 E7 80 > 92123823: 67 6F 8 > 921238B3: 6C EC 80 > BB3923C3: 23 2B 8 > BB392943: 11 19 8 > BCEA48D3: 3E BE 80 > BE538943: 27 2F 8 > BE5398D3: 6F EF 80 > E3BC71D3: 1A 9A 80 > E3BC73C3: 07 0F 8 > ECB0E1A3: 60 68 8 > 0CD6A8B3: 34 B4 80 > 0CD6A943: F7 FF 8 > 0E8898D3: 0B 8B 80 > 1C65F3C3: B0 B8 8 > 1C65F8B3: 71 F1 80 > 1C6C81A3: 13 1B 8 > 357BD8B3: 11 91 80 > 371BE1A3: 63 6B 8 > 4AB5E8B3: 50 D0 80 > 4AB5E943: F7 FF 8 > 78AB41A3: 01 09 8 > 78AB48D3: 45 C5 80 > 87EB63C3: 21 29 8 > 88B971A3: E2 EA 8 > 88B978D3: 4A CA 80 > A74861A3: C5 CD 8 > B11443C3: 70 78 8 > B1C9F1A3: 33 3B 8 > B1C9F8D3: 6F EF 80 > D5CC9943: 01 09 8 > DA7ED1A3: 21 29 8 > 03A658B3: 0A 8A 80 > 03A668D3: 61 E1 80 > 03AEF873: 6C EC 80 > 1A7B0143: 2E AE 80 > 1A7B03C3: 37 3F 8 > 1A7B0943: 24 2C 8 > > Thanks. > > +----------------------------------------------------------+ > Michael D. Setzer II - Computer Science Instructor > Guam Community College Computer Center > mailto:mikes@xxxxxxxxxxxxxxxx > mailto:msetzerii@xxxxxxxxx > http://www.guam.net/home/mikes > Guam - Where America's Day Begins > +----------------------------------------------------------+ > > http://setiathome.berkeley.edu > Number of Seti Units Returned: 16,494 > Processing time: 30 years, 322 days, 22 hours, 23 minutes > (Total Hours: 270,550) > > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list -- ============================================================================ Neal Rhodes MNOP Ltd (770) 972-5430 President 4737 Habersham Ridge fax: (770) 978-4741 Lilburn (atlanta) GA 30047
