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Date:      Wed, 27 Apr 2005 19:42:35 -0400
From:      Tim Howe <tim.howe@celebrityresorts.com>
To:        freebsd-stable@freebsd.org
Subject:   Re: Kodak USB flash reader causes freezes, panics
Message-ID:  <873btbkcr8.fsf@beaker.data-secure.net>
In-Reply-To: <20050412164126.GA18471@odin.ac.hmc.edu> (Brooks Davis's message of "Tue, 12 Apr 2005 09:41:26 -0700")
References:  <87oecl57nk.fsf@beaker.data-secure.net> <20050411230107.GA11717@odin.ac.hmc.edu> <87y8boeo7d.fsf@beaker.data-secure.net> <20050412164126.GA18471@odin.ac.hmc.edu>

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Brooks Davis <brooks@one-eyed-alien.net> writes:

>> > > Reproducibly, if I begin copying data to a [...] CF card [...] it
>> > > works for a while, then freezes the system.
[...]
> Sounds like you should file a PR about the issue.  Are you sure the file
> system in question is OK?  There were some msdosfs corruption bugs fixed
> recently.

Taking your suggestion I zeroed out the CF card, then used fdisk and
newfs_msdos to get it in working order again.  I've been testing it
over the past week and have had no problems since.

Thanks for the pointer.  Is it accepted for a corrupt filesystem to
freeze the system, though?

>> [1042] ~ # true > /dev/da0               
[...]
>
> I'd highly recommend running the command in the other direction so you
> try to read rather than write.  It shouldn't matter, but that makes me
> nervous (not that I think it has anything to do with your problem.)

I tried that, and doing a read and waiting a few seconds.  Opening for
write, as above, worked immediately.

-- 
Tim Howe
Software Engineer
Celebrity Resorts



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