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Date:      Wed, 18 Nov 2009 12:13:32 +0100
From:      Hans Petter Selasky <hselasky@c2i.net>
To:        freebsd-usb@freebsd.org
Cc:        questions@freebsd.org, freebsd-stable@freebsd.org, Guojun Jin <gjin@ubicom.com>
Subject:   Re: 8.0-RC3 USB lock up on mounting two partitions from one USB drive
Message-ID:  <200911181213.34112.hselasky@c2i.net>
In-Reply-To: <CB2DD11991B27C4F99935E6229450D3203950A1D@STORK.scenix.com>
References:  <CB2DD11991B27C4F99935E6229450D3203950A1C@STORK.scenix.com> <CB2DD11991B27C4F99935E6229450D3203950A1D@STORK.scenix.com>

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Hi,

I'm not sure if this is an USB issue or not. If you get READ/WRITE errors and 
the drive simply dies then it might be the case. Else it is a system issue.

There are quirks for mass storage which you can add to 
sys/dev/usb/storage/umass.c .

--HPS

On Wednesday 18 November 2009 08:33:07 Guojun Jin wrote:
> Did newfs on those partition and made things worsen -- restore completely
> fails: (I had experienced another similar problem on an IDE, which works
> well for 6.4 and 7.2, but 8.0.) This dirve works fine under FreeBSD 6.4.
>
> Is something new in 8.0 making disk partition schema changed?
>
> g_vfs_done():da0s3d[READ(offset=98304, length=16384)]error = 6
> g_vfs_done():da0s3d[WRITE(offset=192806912, length=16384)]error = 6
> fopen: Device not configured
> cannot create save file ./restoresymtable for symbol table
> abort? [yn] (da0:umass-sim0:0:0:0): Synchronize cache failed, status ==
> 0xa, scs i status == 0x0
> (da0:umass-sim0:0:0:0): removing device entry
> ugen1.2: <DMI> at usbus1
> umass0: <DMI Ultra HDD, class 0/0, rev 2.00/1.19, addr 2> on usbus1
> umass0:  SCSI over Bulk-Only; quirks = 0x0000
> umass0:0:0:-1: Attached to scbus0
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0: <DMI Ultra HDD 1.19> Fixed Direct Access SCSI-0 device
> da0: 40.000MB/s transfers
> da0: 114473MB (234441648 512 byte sectors: 255H 63S/T 14593C)
> Device da0s3d went missing before all of the data could be written to it;
> expect data loss.
>
>     99  23:19   sysinstall
>    100  23:20   newfs /dev/da0s3d
>    101  23:20   newfs /dev/da0s3e
>    102  23:21   mount /dev/da0s3d /mnt
>    103  23:21   cd /mnt
>    104  23:21   dump -0f - /home | restore -rf -
>    105  23:27   history 15
>
>
>
> -----Original Message-----
> From: Guojun Jin
> Sent: Tue 11/17/2009 11:05 PM
> To: freebsd-stable@freebsd.org
> Cc: questions@freebsd.org; freebsd-usb@freebsd.org
> Subject: 8.0-RC3 USB lock up on mounting two partitions from one USB drive
>
> When mounting two partitions from a USB dirve, it can cause the drive
> access lock up for a long time. Details:
>
> Terminal 1 --
> term1# mount /dev/da0s3d  /mnt
> term1# cd /mnt ; rm -fr *
>
> when rm starts, go to terminal 2 and do:
>
> term2# mount /dev/da0s3e /dist ### this will hanging for a long time and
> USB hard drive activity light is off. After more than 1-2 minutes, mount
> returns, and the drive activity light is blinking, thus removing is going
> on.
>
> term2# ls /dist   ### this will cause dUSB dirve hanging again -- no
> avtivity. Similarly, ls will finish in a couple of miniutes or longer, the
> rm command continues; but for a while, the drive activity will stop again.
>
> Reboot machine, repeat the above steps, and result will be the same. Reboot
> machine again, and just mount one partition, then doing "rm -rf *" without
> involve the second partition, rm will finish quickly.
>
> Has anyone obseved this behave on 8.0-RC?
>
> -Jin




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