One more log which is generated by remount command mount -t ufs -o ufstype=ufs2,remount,rw /dev/nbd0p2 /mnt
Fyi. ** Attachment added: "another syslog when remount ufs with rw" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501623/+attachment/4482483/+files/report.jenkins1.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1501623 Title: UFS rw support fails with 3.19.0-26-generic Status in linux package in Ubuntu: Incomplete Status in linux source package in Vivid: Incomplete Bug description: Hi guys, I'd like to enable rw support for ufs file system with kernel 3.19.0-26-generic. Basically, I follow steps as below from http://oz123.github.io/writings/2012-11-26-enable-ufs-write-support- debian/ sudo apt-get build-dep --no-install-recommends linux-image-$(uname -r) mkdir ufs_rw cd ufs_rw apt-get source linux-image-$(uname -r) cp -v /usr/src/linux-headers-$(uname -r)/Module.symvers . cd linux-*/ cp -v /boot/config-$(uname -r) . make EXTRAVERSION=-4 O=~/ufs_rw oldconfig sed -i 's/# CONFIG_UFS_FS_WRITE is not set/CONFIG_UFS_FS_WRITE=y/' ~/ufs_rw/.config make EXTRAVERSION=-4 O=~/ufs_rw prepare make EXTRAVERSION=-4 O=~/ufs_rw outputmakefile make EXTRAVERSION=-4 O=~/ufs_rw archprepare make EXTRAVERSION=-4 O=~/ufs_rw modules SUBDIRS=scripts make EXTRAVERSION=-4 O=~/ufs_rw modules SUBDIRS=fs/ufs I get ufs.ko under ufs_rw/fs/ufs and try it with below commands. modprobe nbd qemu-nbd -c /dev/nbd0 freebsd10u1x64 mount -t ufs -o ufstype=ufs2,rw /dev/nbd0p2 /mnt There is no error or warning when I run mount -t ufs -o ufstype=ufs2,rw /dev/nbd0p2 /mnt However, when I try to write something to /mnt or even umount /mnt, there is kernel panic. And further more, the way above works for 3.8.0-34-generic/3.11.0-26-generic. That means I can read/write correctly with ufs2 file system. It breaks with 3.19.0-26-generic, from my view. Please let me know if more info is needed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501623/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
