On 29 May 2011 15:52, Chris Rees <utis...@gmail.com> wrote:
> Hi all,
>
> I'm afraid I've also got the infamous error 5 problem on my Macbook.
>
> USB hard drive seems to work fine as it's newfs'd a couple of times,
> but after a little while (using USB hard drive as backup destination
> with rsync) it gives me these:
>
> [crees@zeus]~% dmesg |tail
> g_vfs_done():da0s1[WRITE(offset=41748480, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41750528, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41752576, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41754624, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41756672, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41758720, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41760768, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41762816, length=12288)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41775104, length=2048)]error = 5
> g_vfs_done():da0s1[WRITE(offset=41777152, length=2048)]error = 5
>
> Unfortunately I can't seem to stop it doing this, and every time I've
> just unplugged the drive in the past the system panics... I'd really
> rather avoid that since it's my main server.
>
> [crees@zeus]~% uname -a
> FreeBSD zeus.bayofrum.net 8.2-RELEASE-p1 FreeBSD 8.2-RELEASE-p1 #0:
> Sat Apr 30 15:09:06 BST 2011
> r...@zeus.bayofrum.net:/usr/obj/usr/src/sys/ZEUS  i386
>
> Kernel config file is at [1].
>
> I've tried the patch from [2], and this stops the AutoSense failed
> messages I used to get, but not these.
>
> Perhaps oddly related, when these messages start tab-completion in
> tcsh sometimes hangs -- even for unrelated directories such as % ls
> /roo^VTAB causes a hang.
>
> Any ideas/patches/information I've missed? The drive works perfectly
> in 'Windows', and I also tried it on my Ubuntu netbook.
>
> Chris
>
>
> [1] http://www.bayofrum.net/~crees/ZEUS (diff to GENERIC at
> http://www.bayofrum.net/~crees/ZEUS.diff)
> [2] http://www.freebsd.org/cgi/query-pr.cgi?pr=usb/150401

Sorry to reply to my own post.

I should clarify that I have only tried enabling some USB quirks
_after_ the problem has started, but my main problem is now that the
disk is 'stuck' in the computer.

Is there a trick to removing that drive now without causing a panic?

I've tried umount -f (hangs, but now mount doesn't show it mounted,
although newfs can't open for writing), followed by camcontrol eject
da0 (fails).

Chris
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