Red Hat Bugzilla – Bug 49717
no space left on device error
Last modified: 2007-04-18 12:35:02 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Description of problem: Bonnie (www.textuality.com/bonnie) fails on a write() call while writing on a RAID 1 device. The message printed by the perror() call made by bonnie after the failed write() is "No space left on device." However, df reports that there is plenty of space left on the device (shown below). How reproducible: Sometimes Steps to Reproduce: 1. Run Bonnie to write a large file (at least 512MB) on a RAID 1 device. 2. Bonnie should fail as described. Additional info: IBM ServeRAID 4L controller on a dual P3-700 w/1024MB RAM. Bonnie output: File '/temp/Bonnie.1185', size: 536870912 Writing with putc()...done Rewriting...done Writing intelligently...Bonnie: drastic I/O error (write(2)): No space left on device df reports the following: /dev/sdb1 1k-blocks: 1031608 Used: 506804 Available: 472400 Use%: 52% Mounted on: /temp The actual size of the file when Bonnie dies: /temp/Bonnie.1185 size: 501649408 We reproduced this once - failed much earlier into the file (324444160 bytes).
Smells like the VM mistuning gives -ENOMEM and bonnie translates that as "disk full"....
This defect is considered SHOULD-FIX for Fairfax.
Beta3 should have this fixed at the cost of performance-loss. We're trying to undo the performance-loss without loosing the fix. Could you verify this ?
This failure no longer occurs in beta 3.