[DRBD-user] DRBD attempts to access beyond end of device

Nate Seif seifn at rstechnicalservices.com
Tue Feb 26 22:14:36 CET 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hello all:
I intermittently experience the errors below while running DRBD and would 
like to correct whatever condition is causing DRBD to randomly lose pages. 
My hard disks and partitions are identical and have never given me 
problems previously. I don't see any other disk I/O errors in my logs. And 
it appears that occassionally (not always) these errors are preceded by a 
resync of the two disks.

Why would DRBD "attempt to access beyond end of device"?

I am running DRBD 8.06 on Gentoo Linux as I could not get my latest 
Gentoo kernel to load the DRBD module where version > 8.06. Metadata is 
"internal" and I'm running Protocol C. I'd be happy to post my drbd.conf 
page if necessary.


Feb 26 08:21:46 <hostname> attempt to access beyond end of device
Feb 26 08:21:46 <hostname> drbd0: rw=1, want=211992584, limit=211986944
Feb 26 08:21:46 <hostname> Buffer I/O error on device drbd0, logical block 
26499072
Feb 26 08:21:46 <hostname> lost page write due to I/O error on drbd0
Feb 26 08:21:46 <hostname> attempt to access beyond end of device
Feb 26 08:21:46 <hostname> drbd0: rw=1, want=211992592, limit=211986944
Feb 26 08:21:46 <hostname> Buffer I/O error on device drbd0, logical block 
26499073
Feb 26 08:21:46 <hostname> lost page write due to I/O error on drbd0


Any ideas, tips, help, etc. is much appreciated. Thank you -

Nate




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