Red Hat Bugzilla – Bug 125075
rsync needs better error messages
Last modified: 2007-11-30 17:06:54 EST
While running a local 'rsync -avP', the following error was reported:
rsync: writefd_unbuffered failed to write 32768 bytes: phase
"unknown": No buffer space available
rsync error: error in rsync protocol data stream (code 12) at io.c(515)
In this case, it appears that this was due to running out of disk
space, but "No buffer space available" did not lead us to that
Also, this error sometimes showed up immediately, at other times, it
occurred part way through the copy of the failing file, so that made
diagnosis even more difficult, as this appeared to be a rsync issue
rather than a disk space issue.
Version-Release number of selected component (if applicable):
This was 100% reproducable during a low disk space condition.
Steps to Reproduce:
1. Try to copy a file set larger than the available disk space.
The error messages above.
Something along the lines of "No space left on device" would have lead
us to the real cause sooner.
This bug is filed against RHEL2.1, which is in maintenance phase.
During the maintenance phase, only security errata and select mission
critical bug fixes will be released for enterprise products. Since
this bug does not meet that criteria, it is now being closed.
For more information of the RHEL errata support policy, please visit:
If you feel this bug is indeed mission critical, please contact your
support representative. You may be asked to provide detailed
information on how this bug is affecting you.