Date: Fri, 10 Jul 2009 11:05:48 +0200 (CEST) From: Alexander Best <alexbestms@math.uni-muenster.de> To: <freebsd-usb@freebsd.org> Subject: detaching usb device without unmounting it Message-ID: <permail-20090710090548f7e55a9d00003ae0-a_best01@message-id.uni-muenster.de>
next in thread | raw e-mail | index | archive | help
since the usb2 stack allows one to detach a mounted usb device without the kernel panic'ing i'd like to know which steps are necessary to be taken after detaching a device? because i tried the following: 1. attach device 2. mount device 3. detach device when i tried to unmount the device i got the follwing error message: g_vfs_done():label/usb[WRITE(offset=19456, length=4096)]error = 6 and the console got locked up (ctr+c didn't work). so i tried to reboot using ctrl+alt+del. however after the message: "All buffers synced" there was no reboot. so i had to do a hard reset. however after the reset freebsd fsck'ed my harddrives. so they didn't unmount properly. should i have used `umount -f`? or just plug the device back in again? or isn't it possible to unmount a device that has already been detached? i'm running r195476 btw. alex
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?permail-20090710090548f7e55a9d00003ae0-a_best01>