Re: mount of ext2fs volume stuck in "D+" state (disk uninterruptible wait)
Joe Peterson wrote: Kris Kennaway wrote: Joe Peterson wrote: I just tried (under FreeBSD 7.0-RC1) to mount an ext2fs volume - I've mounted it before with no trouble on this same FreeBSD version. This time, mount appeared to hang. I noticed that I can see the contents of the volume under the mount point, so the mount seemed to "work", but the process is stuff. "ps" shows: root 1307 0.0 0.0 3156 792 p6 D+5:21PM 0:00.00 mount /mnt/linux-home The "ps" man page says that "D" means: "Marks a process in disk (or other short term, uninterruptible) wait." Is there any way I can investigate what is going on? I cannot umount (device busy) or break out of the mount command... http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html But unfortunately I do not have KDB and DDB compiled into the kernel. And, obviously, if I reboot, I will lose this opportunity. I suspect this to be an intermittent thing. Is there anything I can extract while the system is running that would be useful? Thanks, Joe You can run kgdb on /dev/mem to obtain the backtrace. Kris ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: mount of ext2fs volume stuck in "D+" state (disk uninterruptible wait)
New information: it looks as though this ext2fs was already mounted when the mount was attempted. I have reproduced the issue by simply trying to mount the ext2fs volume more than once. Given this, I'd expect the mount to return an already mounted error rather than hanging, so this is perhaps a straightforward bug. -Joe ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: mount of ext2fs volume stuck in "D+" state (disk uninterruptible wait)
Kris Kennaway wrote: > Joe Peterson wrote: >> I just tried (under FreeBSD 7.0-RC1) to mount an ext2fs volume - I've >> mounted it before with no trouble on this same FreeBSD version. This >> time, mount appeared to hang. I noticed that I can see the contents of >> the volume under the mount point, so the mount seemed to "work", but the >> process is stuff. "ps" shows: >> >> root 1307 0.0 0.0 3156 792 p6 D+5:21PM 0:00.00 mount >> /mnt/linux-home >> >> The "ps" man page says that "D" means: "Marks a process in disk (or >> other short term, uninterruptible) wait." >> >> Is there any way I can investigate what is going on? I cannot umount >> (device busy) or break out of the mount command... > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html But unfortunately I do not have KDB and DDB compiled into the kernel. And, obviously, if I reboot, I will lose this opportunity. I suspect this to be an intermittent thing. Is there anything I can extract while the system is running that would be useful? Thanks, Joe ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: mount of ext2fs volume stuck in "D+" state (disk uninterruptible wait)
Joe Peterson wrote: I just tried (under FreeBSD 7.0-RC1) to mount an ext2fs volume - I've mounted it before with no trouble on this same FreeBSD version. This time, mount appeared to hang. I noticed that I can see the contents of the volume under the mount point, so the mount seemed to "work", but the process is stuff. "ps" shows: root 1307 0.0 0.0 3156 792 p6 D+5:21PM 0:00.00 mount /mnt/linux-home The "ps" man page says that "D" means: "Marks a process in disk (or other short term, uninterruptible) wait." Is there any way I can investigate what is going on? I cannot umount (device busy) or break out of the mount command... http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html Kris ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
