[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Brad Figg]

** Tags added: cscc

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Andy Whitcroft]

This bug was erroneously marked for verification in bionic; verification
is not required and verification-needed-bionic is being removed.

** Tags removed: verification-needed-bionic

** Tags added: verification-done-bionic

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Brad Figg]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-bionic

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Andy Whitcroft]

** Tags removed: verification-needed-bionic
** Tags added: kernel-fixup-verification-needed-bionic

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Brad Figg]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-bionic

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-134.160

---
linux (4.4.0-134.160) xenial; urgency=medium

  * linux: 4.4.0-134.160 -proposed tracker (LP: #1787177)

  * locking sockets broken due to missing AppArmor socket mediation patches
(LP: #1780227)
- UBUNTU SAUCE: apparmor: fix apparmor mediating locking non-fs, unix 
sockets

  * Backport namespaced fscaps to xenial 4.4 (LP: #1778286)
- Introduce v3 namespaced file capabilities
- commoncap: move assignment of fs_ns to avoid null pointer dereference
- capabilities: fix buffer overread on very short xattr
- commoncap: Handle memory allocation failure.

  * Xenial update to 4.4.140 stable release (LP: #1784409)
- usb: cdc_acm: Add quirk for Uniden UBC125 scanner
- USB: serial: cp210x: add CESINEL device ids
- USB: serial: cp210x: add Silicon Labs IDs for Windows Update
- n_tty: Fix stall at n_tty_receive_char_special().
- staging: android: ion: Return an ERR_PTR in ion_map_kernel
- n_tty: Access echo_* variables carefully.
- x86/boot: Fix early command-line parsing when matching at end
- ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
- i2c: rcar: fix resume by always initializing registers before transfer
- ipv4: Fix error return value in fib_convert_metrics()
- kprobes/x86: Do not modify singlestep buffer while resuming
- nvme-pci: initialize queue memory before interrupts
- netfilter: nf_tables: use WARN_ON_ONCE instead of BUG_ON in nft_do_chain()
- ARM: dts: imx6q: Use correct SDMA script for SPI5 core
- ubi: fastmap: Correctly handle interrupted erasures in EBA
- mm: hugetlb: yield when prepping struct pages
- tracing: Fix missing return symbol in function_graph output
- scsi: sg: mitigate read/write abuse
- s390: Correct register corruption in critical section cleanup
- drbd: fix access after free
- cifs: Fix infinite loop when using hard mount option
- jbd2: don't mark block as modified if the handle is out of credits
- ext4: make sure bitmaps and the inode table don't overlap with bg
  descriptors
- ext4: always check block group bounds in ext4_init_block_bitmap()
- ext4: only look at the bg_flags field if it is valid
- ext4: verify the depth of extent tree in ext4_find_extent()
- ext4: include the illegal physical block in the bad map ext4_error msg
- ext4: clear i_data in ext4_inode_info when removing inline data
- ext4: add more inode number paranoia checks
- ext4: add more mount time checks of the superblock
- ext4: check superblock mapped prior to committing
- HID: i2c-hid: Fix "incomplete report" noise
- HID: hiddev: fix potential Spectre v1
- HID: debug: check length before copy_to_user()
- x86/mce: Detect local MCEs properly
- x86/mce: Fix incorrect "Machine check from unknown source" message
- media: cx25840: Use subdev host data for PLL override
- mm, page_alloc: do not break __GFP_THISNODE by zonelist reset
- dm bufio: avoid sleeping while holding the dm_bufio lock
- dm bufio: drop the lock when doing GFP_NOIO allocation
- mtd: rawnand: mxc: set spare area size register explicitly
- dm bufio: don't take the lock in dm_bufio_shrink_count
- mtd: cfi_cmdset_0002: Change definition naming to retry write operation
- mtd: cfi_cmdset_0002: Change erase functions to retry for error
- mtd: cfi_cmdset_0002: Change erase functions to check chip good only
- netfilter: nf_log: don't hold nf_log_mutex during user access
- staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write()
- Linux 4.4.140

  * Xenial update to 4.4.139 stable release (LP: #1784382)
- xfrm6: avoid potential infinite loop in _decode_session6()
- netfilter: ebtables: handle string from userspace with care
- ipvs: fix buffer overflow with sync daemon and service
- atm: zatm: fix memcmp casting
- net: qmi_wwan: Add Netgear Aircard 779S
- net/sonic: Use dma_mapping_error()
- Revert "Btrfs: fix scrub to repair raid6 corruption"
- tcp: do not overshoot window_clamp in tcp_rcv_space_adjust()
- Btrfs: make raid6 rebuild retry more
- usb: musb: fix remote wakeup racing with suspend
- bonding: re-evaluate force_primary when the primary slave name changes
- tcp: verify the checksum of the first data segment in a new connection
- ext4: update mtime in ext4_punch_hole even if no blocks are released
- ext4: fix fencepost error in check for inode count overflow during resize
- driver core: Don't ignore class_dir_create_and_add() failure.
- btrfs: scrub: Don't use inode pages for device replace
- ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream()
- ALSA: hda: add dock and led support for HP EliteBook 830 G5
- ALSA: hda: add dock and led support for HP ProBook 640 G4
- cpufreq: Fix new policy initialization during limits updates via 

[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Launchpad Bug Tracker]

This bug was fixed in the package zfs-linux - 0.6.5.6-0ubuntu24

---
zfs-linux (0.6.5.6-0ubuntu24) xenial; urgency=medium

  * Allow multiple mounts of zfs datasets (LP: #1759848)
- Change zpl_mount() to call sget() directly with it's own test
  callback. Passing the objset_t object as the fs data allows
  checking if a superblock already exists for the dataset, and in
  that case we just need to return a new reference for the sb's
  root dentry.

 -- Colin Ian King   Thu, 25 Jun 2018 14:31:14
+0100

** Changed in: zfs-linux (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

Tested with zfsutils-linux 0.6.5.6-0ubuntu24 and linux 4.4.0-134 with
test in comment #2 and this now works. Marking as verified for Xenial

** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Kleber Sacilotto de Souza]

** Changed in: linux (Ubuntu Xenial)
   Status: In Progress => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Tags removed: verification-done-bionic
** Tags added: verification-needed-xenial

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

Tested with kernel 4.15.0-27-generic and the fix works. Marking as
verified for Bionic.

** Tags added: verification-done-bionic

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

We need to wait until the kernel is updated with the fix before it can
be tested as the fixes require kernel + zfs together to work

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Brian Murray]

Hello Colin, or anyone else affected,

Accepted zfs-linux into xenial-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/zfs-
linux/0.6.5.6-0ubuntu24 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: zfs-linux (Ubuntu Xenial)
   Status: In Progress => Fix Committed

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Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Changed in: linux (Ubuntu Xenial)
   Status: New => In Progress

** Changed in: zfs-linux (Ubuntu Xenial)
   Status: New => In Progress

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  In Progress
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

This SRU requires and update in zfsutils-linux and the change sync'd to
the kernel and the kernel update to complete the fix.

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Description changed:

- Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
- mounts-of-zfs-datasets to allow multiple mounts
+ === SRU Justification, Xenial ==
  
  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
- involve unmounting and remounting the dataset.  This fix from Seth
- addresses this issue
+ involve unmounting and remounting the dataset.
+ 
+ == Fix ==
+ 
+ Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
+ multiple-mounts-of-zfs-datasets to allow multiple mounts
+ 
+ This fix from Seth addresses this issue
+ 
+ == Regression potential ==
+ 
+ Like all backports, this has a potential to be incorrectly backported
+ and break the ZFS mounting. However, any breakage should be picked up
+ via the ZFS smoke tests that thoroughly exercise mounting/dismounting
+ options.  At worst, the mounting won't work, but this has been tested,
+ so I doubt this is a possibility.

-- 
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Changed in: linux (Ubuntu Xenial)
 Assignee: (unassigned) => Colin Ian King (colin-king)

** No longer affects: linux (Ubuntu Artful)

** No longer affects: zfs-linux (Ubuntu Artful)

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Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Also affects: linux (Ubuntu Artful)
   Importance: Undecided
   Status: New

** Also affects: zfs-linux (Ubuntu Artful)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: zfs-linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Artful:
  New
Status in zfs-linux source package in Artful:
  New
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.15.0-15.16

---
linux (4.15.0-15.16) bionic; urgency=medium

  * linux: 4.15.0-15.16 -proposed tracker (LP: #1761177)

  * FFe: Enable configuring resume offset via sysfs (LP: #1760106)
- PM / hibernate: Make passing hibernate offsets more friendly

  * /dev/bcache/by-uuid links not created after reboot (LP: #1729145)
- SAUCE: (no-up) bcache: decouple emitting a cached_dev CHANGE uevent

  * Ubuntu18.04:POWER9:DD2.2 - Unable to start a KVM guest with default machine
type(pseries-bionic) complaining "KVM implementation does not support
Transactional Memory, try cap-htm=off" (kvm) (LP: #1752026)
- powerpc: Use feature bit for RTC presence rather than timebase presence
- powerpc: Book E: Remove unused CPU_FTR_L2CSR bit
- powerpc: Free up CPU feature bits on 64-bit machines
- powerpc: Add CPU feature bits for TM bug workarounds on POWER9 v2.2
- powerpc/powernv: Provide a way to force a core into SMT4 mode
- KVM: PPC: Book3S HV: Work around transactional memory bugs in POWER9
- KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode
- KVM: PPC: Book3S HV: Work around TEXASR bug in fake suspend state

  * Important Kernel fixes to be backported for Power9 (kvm) (LP: #1758910)
- powerpc/mm: Fixup tlbie vs store ordering issue on POWER9

  * Ubuntu 18.04 - IO Hang on some namespaces when running HTX with 16
namespaces  (Bolt / NVMe) (LP: #1757497)
- powerpc/64s: Fix lost pending interrupt due to race causing lost update to
  irq_happened

  * fwts-efi-runtime-dkms 18.03.00-0ubuntu1: fwts-efi-runtime-dkms kernel module
failed to build (LP: #1760876)
- [Packaging] include the retpoline extractor in the headers

linux (4.15.0-14.15) bionic; urgency=medium

  * linux: 4.15.0-14.15 -proposed tracker (LP: #1760678)

  * [Bionic] mlx4 ETH - mlnx_qos failed when set some TC to vendor
(LP: #1758662)
- net/mlx4_en: Change default QoS settings

  * AT_BASE_PLATFORM in AUXV is absent on kernels available on Ubuntu 17.10
(LP: #1759312)
- powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features

  * Bionic update to 4.15.15 stable release (LP: #1760585)
- net: dsa: Fix dsa_is_user_port() test inversion
- openvswitch: meter: fix the incorrect calculation of max delta_t
- qed: Fix MPA unalign flow in case header is split across two packets.
- tcp: purge write queue upon aborting the connection
- qed: Fix non TCP packets should be dropped on iWARP ll2 connection
- sysfs: symlink: export sysfs_create_link_nowarn()
- net: phy: relax error checking when creating sysfs link netdev->phydev
- devlink: Remove redundant free on error path
- macvlan: filter out unsupported feature flags
- net: ipv6: keep sk status consistent after datagram connect failure
- ipv6: old_dport should be a __be16 in __ip6_datagram_connect()
- ipv6: sr: fix NULL pointer dereference when setting encap source address
- ipv6: sr: fix scheduling in RCU when creating seg6 lwtunnel state
- mlxsw: spectrum_buffers: Set a minimum quota for CPU port traffic
- net: phy: Tell caller result of phy_change()
- ipv6: Reflect MTU changes on PMTU of exceptions for MTU-less routes
- net sched actions: return explicit error when tunnel_key mode is not
  specified
- ppp: avoid loop in xmit recursion detection code
- rhashtable: Fix rhlist duplicates insertion
- test_rhashtable: add test case for rhltable with duplicate objects
- kcm: lock lower socket in kcm_attach
- sch_netem: fix skb leak in netem_enqueue()
- ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()
- net: use skb_to_full_sk() in skb_update_prio()
- net: Fix hlist corruptions in inet_evict_bucket()
- s390/qeth: free netdevice when removing a card
- s390/qeth: when thread completes, wake up all waiters
- s390/qeth: lock read device while queueing next buffer
- s390/qeth: on channel error, reject further cmd requests
- soc/fsl/qbman: fix issue in qman_delete_cgr_safe()
- dpaa_eth: fix error in dpaa_remove()
- dpaa_eth: remove duplicate initialization
- dpaa_eth: increment the RX dropped counter when needed
- dpaa_eth: remove duplicate increment of the tx_errors counter
- dccp: check sk for closed state in dccp_sendmsg()
- ipv6: fix access to non-linear packet in ndisc_fill_redirect_hdr_option()
- l2tp: do not accept arbitrary sockets
- net: ethernet: arc: Fix a potential memory leak if an optional regulator 
is
  deferred
- net: ethernet: ti: cpsw: add check for in-band mode setting with RGMII PHY
  interface
- net: fec: Fix unbalanced PM runtime calls
- net/iucv: Free memory obtained by kzalloc
- netlink: avoid a double skb free in genlmsg_mcast()
- net: Only honor ifindex in IP_PKTINFO if non-0
- net: systemport: Rewrite __bcm_sysport_tx_reclaim()
- 

[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Thadeu Lima de Souza Cascardo]

** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
   Status: Incomplete

** Also affects: zfs-linux (Ubuntu Bionic)
   Importance: Medium
 Assignee: Colin Ian King (colin-king)
   Status: Fix Released

** Changed in: linux (Ubuntu Bionic)
   Status: Incomplete => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Committed
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Committed
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Launchpad Bug Tracker]

This bug was fixed in the package zfs-linux - 0.7.5-1ubuntu13

---
zfs-linux (0.7.5-1ubuntu13) bionic; urgency=medium

  * Allow multiple mounts of zfs datasets (LP: #1759848)
- Change zpl_mount() to call sget() directly with it's own test
  callback. Passing the objset_t object as the fs data allows
  checking if a superblock already exists for the dataset, and in
  that case we just need to return a new reference for the sb's
  root dentry.

 -- Colin Ian King   Thu, 29 Mar 2018 13:58:22
+0100

** Changed in: zfs-linux (Ubuntu)
   Status: In Progress => Fix Released

-- 
You received this bug notification because you are a member of Kernel
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Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Incomplete
Status in zfs-linux package in Ubuntu:
  Fix Released

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Also affects: linux (Ubuntu)
   Importance: Undecided
   Status: New

-- 
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Incomplete
Status in zfs-linux package in Ubuntu:
  In Progress

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

Applied patch, tested successfully with:

mount -t zfs -o zfsutil pool/ds /mnt/first
mount -t zfs -o zfsutil pool/ds /mnt/second

And also passes the ubuntu ZFS regression tests.

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Title:
  Allow multiple mounts of zfs datasets

Status in zfs-linux package in Ubuntu:
  In Progress

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Ubuntu Foundations Team Bug Bot]

** Tags added: patch

-- 
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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in zfs-linux package in Ubuntu:
  In Progress

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Description changed:

  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts
+ 
+ An attempt to mount an already mounted zfs dataset should return a new
+ mount referencing the existing super block, but instead it returns an
+ error. Operations such as bind mounts and unsharing mount namespaces
+ create new mounts for the sb, which can cause operations to fail which
+ involve unmounting and remounting the dataset.  This fix from Seth
+ addresses this issue

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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in zfs-linux package in Ubuntu:
  In Progress

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.  This fix from Seth
  addresses this issue

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1759848/+subscriptions

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[Kernel-packages] [Bug 1759848] Re: Allow multiple mounts of zfs datasets

[Colin Ian King]

** Patch added: "0001-Allow-mounting-datasets-more-than-once.patch"
   
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1759848/+attachment/5094832/+files/0001-Allow-mounting-datasets-more-than-once.patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in zfs-linux package in Ubuntu:
  In Progress

Bug description:
  Pull upstream fix https://trello.com/c/l89Ygj28/352-allow-multiple-
  mounts-of-zfs-datasets to allow multiple mounts

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1759848/+subscriptions

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