[arch-general] USB Buffering Issue

[Timothy Redaelli]

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On 12/02/2011 11:58 AM, Paul Gideon Dann wrote:
> On Friday 02 Dec 2011 11:54:45 Timothy Redaelli wrote:
>> Hi, by default linux mounts the devices with the async option. 
>> You can mount using the sync option, so you are sure that the I/O
>> is made synchronously. Just remember: "In case of media with
>> limited number of write cycles (e.g. some flash drives) "sync"
>> may cause life-cycle shortening." (from man 8 mount)
> 
> Yes, that's probably it.  I don't see "sync" in the mount options,
> so I'm guessing it's being mounted async.  Shouldn't udev be taking
> care of this for usb drives?
> 
> By the way, I'm mounting the drive via udisks (from KDE).  So noone
> else is seeing this?

You can try to edit the udev mount options:

# echo 'ACTION=="add", ENV{mount_options}="sync"' >
/etc/udev.d/rules.d/99-mount-options.rules

Then you must reload udev rules:

# udevadm control --reload-rules

- -- 
Timothy Redaelli
drizztbsd @ irc.freenode.net
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