** Tags removed: verification-needed-noble-linux
** Tags added: verification-done-noble-linux
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Title:
LXD fan bridge causes blocked
** Tags removed: verification-needed-jammy-linux
** Tags added: verification-done-jammy-linux
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Title:
LXD fan bridge causes blocked
Hey John!
Of course, if I have any piece of information about this one (like
reproducer) I'll share it with you. But for now, we only have these two
LXD issues (links are in comment #3) and that's it.
Also you may look into this discussion:
https://github.com/openzfs/zfs/issues/16324
Also, I'm c
I don't think that I have permissions for that ;-)
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Title:
LXD fan bridge causes blocked tasks
Status in linux package in Ubuntu:
I have some evidences that potentially we have even more serious trouble
with ZFS on Ubuntu Noble 6.8 kernel.
Some time ago LXD team has got a report about LXCFS processes crashes:
https://github.com/lxc/lxcfs/issues/644
After spending really a lot of time checking everything from our side
(in LX
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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Title:
LXD fan bridge causes blocked tasks
Status in linux p
patch for Jammy https://lists.ubuntu.com/archives/kernel-
team/2024-September/154056.html
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Title:
LXD fan bridge causes blocked task
Minimal reproducer:
mkdir -p /tmp/ext4_crash/mnt
EXT4_CRASH_IMG="/tmp/ext4_crash/disk.img"
rm -f $EXT4_CRASH_IMG
truncate $EXT4_CRASH_IMG --size 25MiB
EXT4_CRASH_DEV=$(losetup --find --nooverlap --direct-io=on --show
$EXT4_CRASH_IMG)
mkfs.ext4 -E nodiscard,lazy_itable_init=0,lazy_journal_init=0 $E
upstream patch
https://lore.kernel.org/linux-ext4/20240925143325.518508-1-aleksandr.mikhalit...@canonical.com
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Title:
kernel 6.8.0-4
Looks like this:
https://lore.kernel.org/linux-ext4/ee3df746-901c-40bd-95b5-2a2b73403...@huawei.com
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Title:
kernel 6.8.0-40: ext4 on
** Summary changed:
- kernel 6.8.0-40: ext4 online resize on thin-provisioned storage gives
'invalid opcode'
+ kernel 6.8.0-40: ext4 online resize on thin-provisioned storage gives BUG at
fs/ext4/resize.c:324
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v2 submitted https://lists.ubuntu.com/archives/kernel-
team/2024-September/153551.html
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Title:
LXD fan bridge causes blocked tasks
** Description changed:
+ SRU Justification:
+
+ [Impact]
+
+ User can trigger a host crash on Jammy/Noble by launching
+ a container which uses Ubuntu FAN network in LXD.
+
+ [Fix]
+
+ A first proposed patch fixes RCU locking by releasing rcu_read_lock
+ on the skb discard codepath.
+
+ Seco
https://lists.ubuntu.com/archives/kernel-team/2024-September/153510.html
** Patch added:
"0001-UBUNTU-SAUCE-fan-release-rcu_read_lock-on-skb-discar.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2064176/+attachment/5814067/+files/0001-UBUNTU-SAUCE-fan-release-rcu_read_lock-on-skb
JFYI.
All that you need to properly backport this series is:
1. port
https://github.com/torvalds/linux/commit/ce0d5bd3a6c176f9a3bf867624a07119dd4d0878
(as this patch changes cephfs network protocol and have to be applied before
cephfs idmapped mounts as in this feature we are extending cephfs n
Fix was commited already and will get into release. We just need to
wait.
If you want you can validate it by yourself it will be good. But as far
as I know it's not a requirement.
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** Changed in: linux (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu Lunar)
Status: New => Confirmed
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I've spent some time to look at this issue closely.
First of all I want to confirm that the issue is present in the original patch:
("UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from
map_files")
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/fs/
** Information type changed from Private Security to Public Security
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Title:
io_uring regression in the Ubuntu kernel (deadlock)
St
You are right. That's it. Please try -proposed kernel and write about your
testing results.
Feel free to reach me on the forum/IRC if you have any questions.
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** No longer affects: linux-hwe-5.19 (Ubuntu)
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Title:
overlayfs mounts as R/O over idmapped mount
Status in linux package
** Tags removed: verification-needed-kinetic
** Tags added: verification-done-kinetic
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Title:
LXD containers using shiftfs on ZF
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Title:
overlayfs mounts as R/O over idmapped m
It makes no sense to run apport-collect 2009065 in this case :)
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Package changed: linux (Ubuntu) => linux-hwe-5.19 (Ubuntu)
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https://lists.ubuntu.com/archives/kernel-team/2023-March/137464.html
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Title:
overlayfs mounts as R/O over idmapped mount
Status in
** Patch added:
"0001-UBUNTU-SAUCE-overlayfs-handle-idmapped-mounts-in-ovl.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2009065/+attachment/5651146/+files/0001-UBUNTU-SAUCE-overlayfs-handle-idmapped-mounts-in-ovl.patch
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** Tags removed: verification-needed-jammy
** Tags added: verification-done-jammy
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Title:
LXD containers using shiftfs on ZFS or
** Package changed: linux-hwe-5.19 (Ubuntu) => linux (Ubuntu)
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Title:
overlayfs mounts as R/O over idmapped mount
Status in linux p
y, name,
value, size, flags);
+ inode_unlock(inode);
I'll send a patch soon.
** Affects: linux-hwe-5.19 (Ubuntu)
Importance: Undecided
Assignee: Aleksandr Mikhalitsyn (mihalicyn)
Status: New
** Package changed: linux (Ubuntu) => linux-hwe-5.19 (Ubuntu)
** Changed in: linux-hwe-5.19
** Tags removed: verification-needed-kinetic
** Tags added: verification-done-kinetic
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Title:
LXD containers using shiftfs on ZF
https://lists.ubuntu.com/archives/kernel-team/2023-January/136731.html
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Title:
LXD containers using shiftfs on ZFS or TMPFS brok
https://lists.ubuntu.com/archives/kernel-team/2023-January/136719.html
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Title:
LXD containers using shiftfs on ZFS or TMPFS brok
We are waiting for the maintainer's decision on that patch. I've done
everything from my side. I'm sorry that it takes too long to be landed
in the kernel.
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Any updates?
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Title:
LXD containers using shiftfs on ZFS or TMPFS broken on 5.15.0-48.54
Status in linux package in Ubuntu:
C
** Patch added:
"0001-UBUNTU-SAUCE-shiftfs-fix-permanent-EOVERFLOW-inside-.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1990849/+attachment/5631210/+files/0001-UBUNTU-SAUCE-shiftfs-fix-permanent-EOVERFLOW-inside-.patch
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Draft patch is ready
https://lists.ubuntu.com/archives/kernel-team/2022-November/134883.html
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Title:
LXD containers using shiftf
This degradation is not related to
SAUCE: overlayfs: remove CONFIG_AUFS_FS dependency
change
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Title:
LXD containers using shiftf
Dear friends,
Right now I'm on the way to understand what's happening with this.
# strace touch b
execve("/usr/bin/touch", ["touch", "b"], 0x7ffd29f848a8 /* 7 vars */) = 0
brk(NULL) = 0x56007dba6000
arch_prctl(0x3001 /* ARCH_??? */, 0x7fff436afcb0) = -1 EINVAL (Inval
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