Date: Thu, 14 Dec 2006 19:49:40 +0100 From: "Raphael H. Becker" <rabe@p-i-n.com> To: freebsd-geom@freebsd.org Subject: gstripe oder graid3 on USB-Sticks Message-ID: <20061214184940.GA50750@p-i-n.com> Resent-Message-ID: <200612191746.kBJHkI0M074008@pinserv2.p-i-n.com>
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Hello *,
today I bought 3 USB sticks to find out, if there's something to play
with GEOM on it. My FreeBSD ist 6.2-RC1.
umass0: SanDisk Corporation Cruzer Micro, rev 2.00/0.10, addr 3
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SanDisk Cruzer Micro 0.1> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 977MB (2001888 512 byte sectors: 64H 32S/T 977C)
# graid3 status sticks
Name Status Components
raid3/sticks COMPLETE da1
da2
da0
I newfs'd this stick-RAID3 and dd'd about 1G /dev/zero into a file,
gives me about 8MB/sec.
Trying to read this file using dd seems to deadlock the device, dd is'nt
interruptable by SIGHUP (^C) until removing one stick of the mounted
raid3, which causes an error. umount /mnt works.
umass0: BBB reset failed, IOERROR
umass0: BBB bulk-in clear stall failed, IOERROR
umass0: BBB bulk-out clear stall failed, IOERROR
umass0: BBB reset failed, IOERROR
umass0: BBB bulk-in clear stall failed, IOERROR
umass0: BBB bulk-out clear stall failed, IOERROR
umass0: at uhub4 port 4 (addr 3) disconnected
(da0:umass-sim0:0:0:0): lost device
GEOM_RAID3: Device sticks: provider da0 disconnected.
(da0:dead_sim0:0:0:0): Synchronize cache failed, status == 0x8, scsi status == 0x0
(da0:dead_sim0:0:0:0): removing device entry
GEOM_RAID3: Request failed (error=22). da0[READ(offset=12872192, length=65536)]
umass0: detached
After reinserting the stick, the automatic rebuild begins and finishes
successfully:
umass0: SanDisk Corporation Cruzer Micro, rev 2.00/0.10, addr 3
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SanDisk Cruzer Micro 0.1> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 977MB (2001888 512 byte sectors: 64H 32S/T 977C)
GEOM_RAID3: Device sticks: provider da0 detected.
GEOM_RAID3: Device sticks: rebuilding provider da0.
GEOM_RAID3: Device sticks: rebuilding provider da0 finished.
GEOM_RAID3: Device sticks: provider da0 activated.
Remounting / umount works:
root@daemon:~# mount /dev/raid3/stickss1 /mnt/
root@daemon:~# mount
/dev/raid3/stickss1 on /mnt (ufs, local)
root@daemon:~# umount
... but fsck the umounted filesystem
root@daemon:~# fsck /dev/raid3/stickss1
fsck: Could not determine filesystem type
Any idea about this?
Is this geom-specific? Or USB-stick related?
Can anyone else reproduce this behaviour (lock when reading)?
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