writefd_unbuffered failed (when writing to micro SD cards)

[Christopher de Vidal]

Just got a brand new micro SD card and it's also throwing the error.
Any ideas? How can I troubleshoot this more deeply?

Christopher de Vidal
(You're a good person? If you can prove it, take the money. This is a
legitimate offer. TenThousandDollarOffer.com)


On Wed, Apr 17, 2013 at 8:17 AM, Christopher de Vidal
<cbdevidal.jk1 at gmail.com> wrote:
> I'm using rsync 3.0.9-1 in Cygwin to copy several directories to 32GB
> micro SD cards in both WinXP and Win7.  I randomly get this error
> message; Please help me to debug it: rsync: writefd_unbuffered failed
> to write 127 bytes to socket [generator]: Broken pipe (32)
>
> I'd first posted this to the Cygwin mailing list with no response
> after almost two weeks (and sent a reminder after one week).
>
> I've got rsync on an infinite while loop so it keeps retrying, and it
> copies a little more each time, dying at different places each time.
>
> It has happened on all of my SD cards and with multiple SD card
> readers/tablets, copying from two different computers. The only
> constant is the hard drive (moved from one computer to the other) but
> it's not exhibiting other symptoms of early failure. The directories
> are various sizes but one of the directories is only 231MB with 417
> files/7 folders. The smallest file is only a few bytes and the largest
> file is 109MB.
>
> Sometimes it dies randomly and sometimes it dies on a specific file.
> If I copy the file manually, it works. I opened the file and it shows
> no signs of corruption after copying to the micro SD card. Also, the
> micro SD card has a FAT32 filesystem.
>
> Here's the command which syncs the 231MB directory:
> rsync --modify-window=10 --recursive --times --verbose --delete
> --timeout=10 --human-readable --progress --omit-dir-times
> --no-compress --inplace --partial --bwlimit=1000
> "Appropriate_technology" "/cygdrive/f/C"
>
> I added --no-compress --inplace --partial --bwlimit=1000 after
> searching Google. No good.
>
> I have multiple commands like these for multiple directories. When I
> put just this command in a loop by itself, it works, but when I put
> multiple commands, one of them will randomly generate that error
> message.
>
> My .bashrc and .bash_profile are untouched from the install, as are
> /etc/bash.bashrc and /etc/profile, etc. I'm certain I haven't tweaked
> my environment. Just a typical install.
>
> Ran checkdisk on the drive before attempting again.
>
> Cygwin setup version 2.774
> Bash version 4.1.10-4
> base-cygwin 3.1-1
> cygwin 1.7.17-1
> cygwin1.dll version 1.7.17
> Windows 7 64-bit Service Pack 1
> Intel E2200 2.20GHz Dual Core CPU
> 4GB RAM
> Not swapping or maxed CPU or anything.
>
> Christopher de Vidal
> (You're a good person? If you can prove it, take the money. This is a
> legitimate offer. TenThousandDollarOffer.com)