Bug #1083
closeddfly-2.0.0-REL: panic: hammer: insufficient undo FIFO space!
0%
Description
OS: dfly-2.0.0-REL
I backed up my 5GB win2k ntfs partition to a disk image file on my Hammer FS
(6GB in size). When removing the image file, panic occurs.
To reproduce panic:
NOTE: assuming Hammer FS is mounted on /hammer dir and /root is symlinked to
/hammer/root.
- cd /root
- cat /dev/ad0s1 > c.img
- rm c.img
PANIC
Screen Shot of Panic: http://www.bmk.com.au/webshare/hammer_panic.jpg
My dmesg: http://www.bmk.com.au/webshare/dmesg.txt
My fdisk, disklabel & fstab: http://www.bmk.com.au/webshare/labels.txt
Updated by dillon over 16 years ago
:OS: dfly-2.0.0-REL
:
:I backed up my 5GB win2k ntfs partition to a disk image file on my Hammer FS
:(6GB in size). When removing the image file, panic occurs.
:
:To reproduce panic:
:
:NOTE: assuming Hammer FS is mounted on /hammer dir and /root is symlinked to
:/hammer/root.
:
:# cd /root
:# cat /dev/ad0s1 > c.img
:# rm c.img
: PANIC
Ok, I'm on it. It's probably due to the tiny undo fifo one gets
when one has a tiny 6GB filesystem.
-Matt
Matthew Dillon
<dillon@backplane.com>
Updated by bastyaelvtars over 16 years ago
On Wed, 23 Jul 2008 11:05:06 -0700 (PDT)
Matthew Dillon <dillon@apollo.backplane.com> wrote:
This is strange. I have my 4gig /usr on HAMMER and did not have such
panics.
Updated by bastyaelvtars about 15 years ago
correction: I am also experiencing this on 2.4.1 and did so on 2.4.0. Has not
happened before.
Updated by mk about 15 years ago
Yes, that's because the installer uses "-f" on the the newfs_hammer command.
By doing this, they have disabled the feature that protects us from a
too small undo FIFO.
Gergo Szakal (via DragonFly issue tracker) wrote:
Gergo Szakal <bastyaelvtars@gmail.com> added the comment:
correction: I am also experiencing this on 2.4.1 and did so on 2.4.0. Has not
happened before._____________________________________________
DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1083>
_____________________________________________
Updated by ftigeot almost 13 years ago
- Description updated (diff)
- Status changed from New to Resolved
A warning saying smaller than 10GB HAMMER filesystems are unsupported has been added to the installer.
Updated by ftigeot almost 13 years ago
- Status changed from Resolved to Closed
- Assignee deleted (
0)