Subject: Re: misc/37369: Unmounting mass-storage causes umount to freeze
To: None <misc-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: bennybyko@gmx.de <bennybyko@gmx.de>
List: netbsd-bugs
Date: 11/12/2007 20:55:12
The following reply was made to PR misc/37369; it has been noted by GNATS.
From: "bennybyko@gmx.de" <bennybyko@gmx.de>
To: gnats-bugs@NetBSD.org
Cc:
Subject: Re: misc/37369: Unmounting mass-storage causes umount to freeze
Date: Mon, 12 Nov 2007 20:50:47 +0000
Allen Briggs wrote:
> The following reply was made to PR misc/37369; it has been noted by GNATS.
>
> From: Allen Briggs <briggs@netbsd.org>
> To: gnats-bugs@NetBSD.org
> Cc: misc-bug-people@netbsd.org, gnats-admin@netbsd.org,
> netbsd-bugs@netbsd.org
> Subject: Re: misc/37369: Unmounting mass-storage causes umount to freeze
> Date: Mon, 12 Nov 2007 12:43:04 -0500
>
> On Mon, Nov 12, 2007 at 05:35:00PM +0000, bennybyko@gmx.de wrote:
> > Unmounting an usb-stick from "umass0: MEDION Medion Flash XL V2.7D, rev 1.10/2.7d" (an usb-hub and card-reader) causes umount to freeze and error messages to appear in "dmesg". If the usb-stick is simply removed from the device, NetBSD freezes.
>
> Can you copy the messages from "dmesg"? It would be useful to know what
> it's complaining about. This has generally worked for me in the past
> with different usb sticks and drives.
>
> Thanks,
> -allen
>
> --
> Allen Briggs | http://www.ninthwonder.com/~briggs/ | briggs@ninthwonder.com
>
>
>
Hello again ,
It just worked without copying files. 2 times.
It seems as if the error only appears if I copy files.
Thanks for your support so far.
What I did exactly when my usb-stick was plugged in:
*plugging in the stick*
$ dmesg | tail
umass1 at uhub0 port 1 configuration 1 interface 0
umass1: AccFast AFMP3 Player, rev 1.10/2.05, addr 2
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, 1 lun per target
sd4 at scsibus1 target 0 lun 0: <AccFast, USB-MSC Disk IN, T> disk removable
sd4: fabricating a geometry
sd4: 239 MB, 239 cyl, 64 head, 32 sec, 512 bytes/sect x 490496 sectors
$ disklabel /dev/sd4
# /dev/rsd4d:
type: SCSI
disk: USB-MSC Disk IN
label: fictitious
flags: removable
bytes/sector: 512
sectors/track: 32
tracks/cylinder: 64
sectors/cylinder: 2048
cylinders: 239
total sectors: 490496
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # microseconds
track-to-track seek: 0 # microseconds
drivedata: 0
4 partitions:
# size offset fstype [fsize bsize cpg/sgs]
a: 490496 0 4.2BSD 0 0 0 # (Cyl. 0
- 239*)
d: 490496 0 unused 0 0 # (Cyl. 0
- 239*)
disklabel: boot block size 0
disklabel: super block size 0
$ mount_msdos /dev/sd4a /mnt/usb
*copying files to /mnt/usb*
$ cp /home/babenny/netbsd.png /mnt/usb
*yep*
$ umount /mnt/usb
*FREEZES!*
$ dmesg | tail --->
umass1: BBB bulk-out stall clear failed, IOERROR
umass1: BBB reset failed, IOERROR
umass1: BBB bulk-in clear stall failed, IOERROR
umass1: BBB bulk-out clear stall failed, TIMEOUT
*I unplug my usb-stick --> complete FREEZE*