Bug #783

umount issue with NTFS filesystems

Added by qermit over 8 years ago. Updated almost 6 years ago.

Status:ClosedStart date:
Priority:NormalDue date:
Assignee:-% Done:


Target version:-


qbot# mount
/dev/ad0s4a on / (ufs, local)
procfs on /proc (procfs, local)
/dev/ad0s5 on /mnt/aparat (ntfs, local)

if I umount by path (/mnt/aparat) my box reboots
if I umount by device (/dev/ad0s5) it's ok


#1 Updated by dillon over 8 years ago

:New submission from qermit <>:
:qbot# mount
:/dev/ad0s4a on / (ufs, local)
:procfs on /proc (procfs, local)
:/dev/ad0s5 on /mnt/aparat (ntfs, local)
:if I umount by path (/mnt/aparat) my box reboots
:if I umount by device (/dev/ad0s5) it's ok

Its really hard for me to test ntfs. Could you format a small ntfs
filesystem on, say, a usb memory stick, which reproduces the crashing
problem, and then dump an image of that filesystem and make it available
for download? I have no way of constructing a ntfs filesystem myself.


#2 Updated by floid over 8 years ago

Looks like there's a mkntfs is available in /usr/pkgsrc/sysutils/ntfsprogs
(Linux-NTFS.org tools), and I did the sanity-check of making sure it builds
before saying so.

-Joe "Floid" Kanowitz

#3 Updated by tuxillo over 6 years ago


I can't reproduce this:

> grep ntfs /etc/fstab
/dev/ad3s1 /mnt/ntfs ntfs ro 0 0

> sudo mount /mnt/ntfs
> mount -v | grep ntfs
/dev/ad3s1 on /mnt/ntfs (ntfs, local, read-only)

> sudo umount /mnt/ntfs/
> mount -v | grep ntfs

Can you please give us more details on how to reproduce it?

Antonio Huete

#4 Updated by alexh almost 6 years ago

likely related to issue1671, which is fixed.

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