writefd_unbuffered failed to write 4 bytes

Wayne Davison wayned at samba.org
Wed Apr 30 14:17:56 GMT 2008

On Tue, Apr 29, 2008 at 10:05:07AM +1000, Ramkumar Santoshi wrote:
> On Mac OS10.4, using rsync 3.0, it stops during a transfer.

That's an incomplete version.  The last release was 3.0.2.

> 2008/04/28 20:48:46 [3149] rsync: writefd_unbuffered failed to write 4 bytes [sender]: Broken pipe (32)

That just tells you that the receiver went away.  Run a version of rsync
that does not have the debug symbols stripped out (i.e. use the binary
in the build dir, not the one that is installed), enable core dumps (use
"ulimit -c unlimited"), and use a debugger on the core dump to get a
backtrace ("gdb /build/dir/rsync core" followed by "bt").  Then, please
let me know where it crashed.

> Also, what's the characters mean in the logfile, such as:
> >f..tpog.... RAID_One/data/file
>        8.39M 100%    4.12MB/s    0:00:01 (xfer#3478, to-check=1224/8633)

See the --itemize-changes option and the --progress option.


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