[kernel]:overlayfs: invalid origin (root/bmcweb_persistent_data.json, ftype=8000, origin ftype=4000)

[www]

Hi Amir,


To solve this problem, we are trying to upgrade the kernel version or upgrade the file system separately, but because the kernel version we are using is quite different from the one that solves the problem. So I would like to ask you a few questions:


1. What is the root cause of this problem?


2. Can we just upgrade overlay fs to solve this problem without upgrading the kernel or all file systems?


3. If we upgrade overlayfs separately, we are not very good at verifying that we have solved this problem, because the recurrence probability of this problem is very low. So I want to ask, how can we quickly reproduce this problem?


4. Do you have any good suggestions?


I am looking forward to your reply.
Byron













At 2021-04-16 09:34:18, "www" <ouyangxuan10 at 163.com> wrote:




Hi Amir,
Thank you very much for your help. I will import this solution and test it.



thanks,
Byron












At 2021-04-16 01:09:23, "Amir Goldstein" <amir73il at gmail.com> wrote:
>On Thu, Apr 15, 2021 at 2:03 PM www <ouyangxuan10 at 163.com> wrote:
>>
>> Dear Amir, kevin, miklos,
>>
>> An open source project uses overlay filesystem and systemd. when the system first time boot, there is an error in the file system:
>> kernel: overlayfs: invalid origin (root/bmcweb_persistent_data.json, ftype=8000, origin ftype=4000)
>>
>> What's the reason for this? Can you give some help and suggestions to solve this problem?
>>
>> The details are as follows:
>> 1. linux kernel version:
>> root at N/A:~# uname -a Linux N/A 5.1.5-yocto-s-dirty-1605363 #1 Tue Apr 13 01:13:48 UTC 2021 armv6l GNU/Linux
>>
>> 2. mount command
>> mount -t overlay -o lowerdir=$rodir,upperdir=$upper,workdir=$work cow /root
>> (rodir=run/initramfs/ro, upper=run/initramfs/rw/cow, work=rwdir=run/initramfs/rw/work)
>>
>> 3. mountinfo
>> root at N/A:~# cat /proc/self/mountinfo
>> 13 21 0:6 / /dev rw,relatime shared:8 - devtmpfs dev rw,size=220800k,nr_inodes=55200,mode=755
>> 14 21 0:13 / /sys rw,relatime shared:3 - sysfs sys rw
>> 15 21 0:4 / /proc rw,relatime shared:2 - proc proc rw
>> 16 21 0:14 / /run rw,nosuid,nodev shared:11 - tmpfs tmpfs rw,mode=755
>> 17 16 7:0 / /run/initramfs/ro ro,relatime shared:12 - squashfs /dev/loop0 ro
>> 18 16 31:5 / /run/initramfs/rw rw,relatime shared:13 - jffs2 /dev/mtdblock5 rw
>> 21 0 0:15 / / rw,relatime shared:1 - overlay cow rw,lowerdir=run/initramfs/ro,upperdir=run/initramfs/rw/cow,workdir=run/initramfs/rw/work
>> 22 13 0:17 / /dev/shm rw,nosuid,nodev shared:9 - tmpfs tmpfs rw
>> 23 13 0:18 / /dev/pts rw,relatime shared:10 - devpts devpts rw,gid=5,mode=620,ptmxmode=000
>> 24 14 0:19 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:4 - tmpfs tmpfs ro,mode=755
>> 25 24 0:20 / /sys/fs/cgroup/unified rw,nosuid,nodev,noexec,relatime shared:5 - cgroup2 cgroup2 rw,nsdelegate
>> 26 24 0:21 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:6 - cgroup cgroup rw,xattr,name=systemd
>> 27 14 0:22 / /sys/fs/bpf rw,nosuid,nodev,noexec,relatime shared:7 - bpf bpf rw,mode=700
>> 28 14 0:7 / /sys/kernel/debug rw,nosuid,nodev,noexec,relatime shared:14 - debugfs debugfs rw
>> 29 14 0:12 / /sys/kernel/config rw,nosuid,nodev,noexec,relatime shared:15 - configfs configfs rw
>> 30 21 0:23 / /tmp rw,nosuid,nodev shared:16 - tmpfs tmpfs rw
>> 31 21 0:24 / /var/volatile rw,relatime shared:17 - tmpfs tmpfs rw
>>
>> 4. xino_auto
>>
>> 5. file in ro is correct
>> 6. file in rw is correct
>> 7. but the file in overlayfs is  incorrect
>>
>> What's the reason for this?
>
>I suppose lower squashfs was recreated and mounted with an existing
>upper dir that already contains upper files with origin references to the
>old squashfs lower fs.
>
>> Can you give some help and suggestions to solve this problem?
>
>Cherry-pick this fix to your kernel:
>a888db310195 ovl: fix regression with re-formatted lower squashfs
>
>OR as a workaround, build the lower squashfs with the "-no-exports"
>mksquashfs option.
>
>Thanks,
>Amir.
>
>_______________________________________________
>Kernelnewbies mailing list
>Kernelnewbies at kernelnewbies.org
>https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies





 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20210427/0e378e70/attachment.html>