Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
*** What led up to the situation?***
Upgrading to kernel 5.19 and trying to read a small file from directory on the NFS server.
*** What exactly did you do (or not do) that was effective (or ineffective)?***
server:
WinNFSd.exe -log on "F/Kernel5.19/NFS"
client:
mount -t nfs 192.168.0.21:/F/Kernel5.19/NFS /mnt/img -o noatime,nfsvers=3
cd /mnt/img/GPCImageV4.0
cat parts
*** What was the outcome of this action?***
"Input/output error."
terminal interface stuck
*** What outcome did you expect instead?***
Files can be read normal ( This good outome happens with kernel 5.14 and older )
***Issue Details***
I have encountered a problem while using the WinNFSd.exe tool as a server, sharing directory on Windows 10, and with Debian 11 ( kernel version 5.19 ) as client utilizing the NFSv3 protocol for mounting. The mounting process completes without any errors, and can successfully access the directory info using the "ls" or "ls -l". However, when I attempt to access the directory contents using the "cat" command, I receive an error message stating "Input/output error."
I can also read the content of newly created files using cat when they are created on the client side using touch. However, if a file is created on the server side, the client can see the newly created file and get the file information with ls, but encounters an "Input/output error" when trying to read its contents with cat. That's the strange part confused me, seems like problems with access control?
Additionally, after a certain period of time, the terminal interface becomes unresponsive stuck when attempting to access the mounted directory. I'm uncertain about the exact cause triggering this issue, as the timing appears to be random. Sometimes, it takes several minutes for the unresponsiveness to occur, while in other instances, I can work for up to half an hour without any issues.
Interestingly, downgrading the kernel version to 5.14 or BELOW resolves this problem. In fact, using the same network environment, mounted directory, and mounting parameters, I tested kernel versions 6.1, 5.18, 5.15, 5.14, 5.10, and 4.19. Out of these versions, only the first three presented this issue, while the latter three low versions were able to read the contents of files within the NFS shared directory without any problems.
The attachments are the message log during the testing process.
---------------------------Here are the specific details of the problematic test environment :------------------------
***Server:***
--Operating System: Windows 10
--NFS Server Tool: WinNFSd.exe 2.4.0
***Client:***
--Operating System:
Debian 11.0
--Kernel Version:
Linux gpc 5.19.0-0.deb11.2-amd64 #1 SMP PREEMPT_DYNAMIC Debian 5.19.11-1~bpo11+1 (2022-10-03) x86_64 GNU/Linux
***Protocol:***
--NFS Version: NFSv3
nfs-common/oldstable,now 1:1.3.4-6 amd64 [installed]
rpcbind/oldstable,now 1.2.5-9 amd64 [installed,automatic]
***Mount CMD***
root@gpc:mount -t nfs 192.168.0.21:/F/Kernel5.19/NFS /mnt/img -o noatime,nfsvers=3
***Observations:***
root@gpc:/mnt/img# ls -l
total 4
drwxrwxrwx 1 root root 4096 Jul 28 2023 GPCImageV4.0
root@gpc:/mnt/img/GPCImageV4.0# ls -l
total 2400393
-rwxrwxrwx 1 root root 1529 Jul 26 18:54 blkdev.list
-rwxrwxrwx 1 root root 1424 Jul 26 18:54 blkid.list
-rwxrwxrwx 1 root root 13562 Jul 26 18:54 clonezilla-img
-rwxrwxrwx 1 root root 300 Jul 26 18:54 dev-fs.list
-rwxrwxrwx 1 root root 4 Jul 26 18:54 disk
-rwxrwxrwx 1 root root 1207 Jul 26 18:54 efi-nvram.dat
-rwxrwxrwx 1 root root 201 Nov 2 2022 GantryConfiguration.xml
-rwxrwxrwx 1 root root 22373 Jul 26 18:54 Info-dmi.txt
-rwxrwxrwx 1 root root 236 Jul 26 18:54 Info-img-id.txt
-rwxrwxrwx 1 root root 61 Jul 26 18:54 Info-img-size.txt
-rwxrwxrwx 1 root root 27602 Jul 26 18:54 Info-lshw.txt
-rwxrwxrwx 1 root root 1592 Jul 26 18:54 Info-lspci.txt
-rwxrwxrwx 1 root root 1539 Jul 26 18:54 Info-OS-prober.txt
-rwxrwxrwx 1 root root 200 Jul 26 18:54 Info-packages.txt
-rwxrwxrwx 1 root root 96 Jul 26 18:54 Info-saved-by-cmd.txt
-rwxrwxrwx 1 root root 4724 Jul 26 18:54 Info-smart.txt
-rwxrwxrwx 1 root root 35 Jul 26 18:54 parts
-rwxrwxrwx 1 root root 2158265 Jul 26 18:54 sda1.vfat-ptcl-img.gz
-rwxrwxrwx 1 root root 2210653199 Jul 26 18:54 sda2.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 225310835 Jul 26 18:53 sda3.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 4227536 Jul 26 18:52 sda4.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 7246389 Jul 26 18:52 sda5.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 2314988 Jul 26 18:52 sda6.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 5948542 Jul 26 18:52 sda7.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 37 Jul 26 18:54 sda-chs.sf
-rwxrwxrwx 1 root root 17408 Jul 26 18:54 sda-gpt-1st
-rwxrwxrwx 1 root root 16384 Jul 26 18:54 sda-gpt-2nd
-rwxrwxrwx 1 root root 17920 Jul 26 18:54 sda-gpt.gdisk
-rwxrwxrwx 1 root root 967 Jul 26 18:54 sda-gpt.sgdisk
-rwxrwxrwx 1 root root 512 Jul 26 18:54 sda-mbr
-rwxrwxrwx 1 root root 644 Jul 26 18:54 sda-pt.parted
-rwxrwxrwx 1 root root 540 Jul 26 18:54 sda-pt.parted.compact
-rwxrwxrwx 1 root root 1229 Jul 26 18:54 sda-pt.sf
root@gpc:/mnt/img/GPCImageV4.0# cat parts
cat: parts: Input/output error
root@gpc:/mnt/img/GPCImageV4.0# cat disk
cat: disk: Input/output error
---------------------------Here are the specific details of the normal test environment :------------------------
***Server:***
--Operating System: Windows 10
--NFS Server Tool: WinNFSd.exe 2.4.0
***Client:***
--Operating System:
Debian 9.1
--Kernel Version:
Linux gpc 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux
***Protocol:***
--NFS Version: NFSv3
nfs-common/now 1:1.3.4-2.1ubuntu5.5 amd64 [installed,local]
rpcbind/now 0.2.3-0.6ubuntu0.18.04.4 amd64 [installed,local]
***Mount CMD***
root@gpc:mount -t nfs 192.168.0.21:/F/Kernel5.19/NFS /mnt/img -o noatime,nfsvers=3
***Observations:***
root@gpc:/mnt/img# ls -l
total 4
drwxrwxrwx 1 root root 4096 Jul 28 2023 GPCImageV4.0
root@gpc:/mnt/img/GPCImageV4.0# ls -l
total 2400393
-rwxrwxrwx 1 root root 1529 Jul 26 2023 blkdev.list
-rwxrwxrwx 1 root root 1424 Jul 26 2023 blkid.list
-rwxrwxrwx 1 root root 13562 Jul 26 2023 clonezilla-img
-rwxrwxrwx 1 root root 300 Jul 26 2023 dev-fs.list
-rwxrwxrwx 1 root root 4 Jul 26 2023 disk
-rwxrwxrwx 1 root root 1207 Jul 26 2023 efi-nvram.dat
-rwxrwxrwx 1 root root 201 Nov 2 2022 GantryConfiguration.xml
-rwxrwxrwx 1 root root 22373 Jul 26 2023 Info-dmi.txt
-rwxrwxrwx 1 root root 236 Jul 26 2023 Info-img-id.txt
-rwxrwxrwx 1 root root 61 Jul 26 2023 Info-img-size.txt
-rwxrwxrwx 1 root root 27602 Jul 26 2023 Info-lshw.txt
-rwxrwxrwx 1 root root 1592 Jul 26 2023 Info-lspci.txt
-rwxrwxrwx 1 root root 1539 Jul 26 2023 Info-OS-prober.txt
-rwxrwxrwx 1 root root 200 Jul 26 2023 Info-packages.txt
-rwxrwxrwx 1 root root 96 Jul 26 2023 Info-saved-by-cmd.txt
-rwxrwxrwx 1 root root 4724 Jul 26 2023 Info-smart.txt
-rwxrwxrwx 1 root root 35 Jul 26 2023 parts
-rwxrwxrwx 1 root root 2158265 Jul 26 2023 sda1.vfat-ptcl-img.gz
-rwxrwxrwx 1 root root 2210653199 Jul 26 2023 sda2.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 225310835 Jul 26 2023 sda3.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 4227536 Jul 26 2023 sda4.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 7246389 Jul 26 2023 sda5.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 2314988 Jul 26 2023 sda6.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 5948542 Jul 26 2023 sda7.ext4-ptcl-img.gz
-rwxrwxrwx 1 root root 37 Jul 26 2023 sda-chs.sf
-rwxrwxrwx 1 root root 17408 Jul 26 2023 sda-gpt-1st
-rwxrwxrwx 1 root root 16384 Jul 26 2023 sda-gpt-2nd
-rwxrwxrwx 1 root root 17920 Jul 26 2023 sda-gpt.gdisk
-rwxrwxrwx 1 root root 967 Jul 26 2023 sda-gpt.sgdisk
-rwxrwxrwx 1 root root 512 Jul 26 2023 sda-mbr
-rwxrwxrwx 1 root root 644 Jul 26 2023 sda-pt.parted
-rwxrwxrwx 1 root root 540 Jul 26 2023 sda-pt.parted.compact
-rwxrwxrwx 1 root root 1229 Jul 26 2023 sda-pt.sf
root@gpc:/mnt/img/GPCImageV4.0# cat parts
sda1 sda2 sda3 sda4 sda5 sda6 sda7
root@gpc:/mnt/img/GPCImageV4.0# cat disk
sda