Hello,
I can't actually reproduce the issue, I seem to be missing something.
Server
------
$ sudo apt update
$ sudo apt upgrade
$ sudo apt install samba
$ sudo vim /etc/samba/smb.conf
server min protocol = NT1
[sambashare]
comment = Samba on Ubuntu
path = /home/ubuntu/sambashare
read only = no
browsable = yes
$ mkdir ~/sambashare
$ sudo smbpasswd -a ubuntu
Client
------
$ sudo apt update
$ sudo apt install cifs-utils
$ mkdir ~/share
$ sudo mount -t cifs -o username=ubuntu //192.168.122.185/sambashare ~/share
Password for ubuntu@//192.168.122.185/sambashare:
$ mount -l
...
//192.168.122.185/sambashare on /home/ubuntu/share type cifs
(rw,relatime,vers=3.1.1,cache=strict,username=ubuntu,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.122.185,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=60,actimeo=1,closetimeo=1)
$ ls
hallo.txt hello.txt sample.txt sample2.txt
$ sudo cp hello.txt hello.txt.1
$ ll
total 2097176
drwxr-xr-x 2 root root 0 Apr 19 04:46 ./
drwxr-x--- 5 ubuntu ubuntu 4096 Apr 19 03:57 ../
-rwxr-xr-x 1 root root 1960 Apr 19 03:55 hallo.txt*
-rwxr-xr-x 1 root root 1960 Apr 19 04:04 hello.txt*
-rwxr-xr-x 1 root root 1960 Apr 19 04:46 hello.txt.1*
-rwxr-xr-x 1 root root 1073741824 Apr 19 04:01 sample.txt*
-rwxr-xr-x 1 root root 1073741824 Apr 19 04:04 sample2.txt*
No oops in dmesg. I'm not sure what I'm doing wrong. Maybe you can help.
Anyway, I had a look at the stack trace, and it seems to be related to
the regression reported here:
https://lore.kernel.org/linux-
mm/a76b370f93cb928c049b94e1fde0d2da506dfcb2.ca...@amazon.com/T/
But I think its slightly different in the Ubuntu 6.5 kernel.
The thread mentions that:
commit 7b2404a886f8b91250c31855d287e632123e1746
Author: David Howells <dhowe...@redhat.com>
Date: Fri Dec 1 00:22:00 2023 +0000
Subject: cifs: Fix flushing, invalidation and file size with copy_file_range()
Link:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b2404a886f8b91250c31855d287e632123e1746
introduced the issue to Debian's 6.1 kernel.
This got backported to Ubuntu in:
commit 3adbe2ccd8b9b8fde93e03958d6176945794d288
Author: David Howells <dhowe...@redhat.com>
Date: Fri Dec 1 00:22:00 2023 +0000
Subject: cifs: Fix flushing, invalidation and file size with copy_file_range()
$ git describe --contains 3adbe2ccd8b9b8fde93e03958d6176945794d288
Ubuntu-6.5.0-20.20~107
Which we have been using for some time now.
Reading the regression mailing list thread, they mention that things
work differently in 6.1:
> Yeah. __filemap_get_folio() works differently in v6.1.y. There it returns a
> folio or NULL. In 6.7 it returns a folio or a negative error code. The error
> check in cifs_flush_folio() needs to change to something like:
>
> folio = filemap_get_folio(inode->i_mapping, index);
> if (!folio)
> return -ENOMEM;
>
> David
okay... so 6.1 is different from 6.5. Since we were okay with the patch,
we probably didn't need to add anything further.
But they fixed 6.1 with:
commit 21bb2ba4f1ac1e3a57594be62dd74e7b1401b2b1
Author: Steve French <stfre...@microsoft.com>
Date: Fri Jan 12 23:08:51 2024 -0600
Subject: cifs: fix flushing folio regression for 6.1 backport
Link:
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/mantic/commit/?id=21bb2ba4f1ac1e3a57594be62dd74e7b1401b2b1
Now, Ubuntu kernels in between upstream stable releases get patches from
current upstream stable and long term upstream stable trees.
We got both 6.1.x and 6.7.x patches recently...
so we pulled in this fix, and it landed in:
$ git describe --contains 21bb2ba4f1ac1e3a57594be62dd74e7b1401b2b1
Ubuntu-6.5.0-27.28~162
Wow, what a coincidence.
I think this patch is probably not needed in 6.5, and causes the issue.
How about I build you a test kernel with "cifs: fix flushing folio
regression for 6.1 backport" reverted, and then we see if it fixes
things?
If it does, I will send a revert to the kernel team. If it doesn't then
I will have another look.
I'll write back once a test kernel is ready. I'll build you both Jammy
HWE and Mantic kernels.
If you can help me make a reproducer, that would be great. I can test
myself then.
Thanks,
Matthew
** Tags added: seg
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-hwe-6.5 in Ubuntu.
https://bugs.launchpad.net/bugs/2060919
Title:
Remote filesystems mounted as CIFS not working after update to Kernel
"6.5.0-27-generic #28-Ubuntu" (amd64) or Kernel "6.5.0-1014-raspi
#17-Ubuntu" (aarch64).
Status in linux package in Ubuntu:
Confirmed
Status in linux-azure package in Ubuntu:
New
Status in linux-hwe-6.5 package in Ubuntu:
Confirmed
Status in linux-raspi package in Ubuntu:
Confirmed
Bug description:
Remote filesystems mounted as CIFS are not working after update to
Kernel "6.5.0-27-generic #28-Ubuntu" for x86_64 (and also after
updating to Kernel "6.5.0-1014-raspi #17-Ubuntu" in aarch64).
The remote filesystem is correctly mounted and seems to work but
trying to write data to the filesystem ends in a kernel error
exception. After that error the CIFS filesystem just became unusable.
Previous Kernel version works correctly.
=========================================================
Example for Kernel "6.5.0-27-generic #28-Ubuntu" (x86_64)
=========================================================
# lsb_release -rd
No LSB modules are available.
Description: Ubuntu 23.10
Release: 23.10
# uname -a
Linux fpgmsi 6.5.0-27-generic #28-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 7
18:21:00 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
# cat /proc/version_signature
Ubuntu 6.5.0-27.28-generic 6.5.13
----------------------------
How to reproduce the problem
----------------------------
For instance, I'm using KeePassXC
(https://launchpad.net/ubuntu/+source/keepassxc) to update a database located
at CIFS filesystem. Any change done to that database causes this Kernel error
exception:
abr 11 09:34:59 fpgmsi kernel: BUG: unable to handle page fault for address:
fffffffffffffffe
abr 11 09:34:59 fpgmsi kernel: #PF: supervisor read access in kernel mode
abr 11 09:34:59 fpgmsi kernel: #PF: error_code(0x0000) - not-present page
abr 11 09:34:59 fpgmsi kernel: PGD f45a3f067 P4D f45a3f067 PUD f45a41067 PMD
0
abr 11 09:34:59 fpgmsi kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI
abr 11 09:34:59 fpgmsi kernel: CPU: 0 PID: 28103 Comm: Thread (pooled)
Tainted: P OE 6.5.0-27-generic #28-Ubuntu
abr 11 09:34:59 fpgmsi kernel: Hardware name: Micro-Star International Co.,
Ltd. MAG Z690 Codex X5 (MS-B930)/PRO Z690-A WIFI (MS-7D25), BIOS D.50 04/26/2022
abr 11 09:34:59 fpgmsi kernel: RIP: 0010:cifs_flush_folio+0x41/0xf0 [cifs]
abr 11 09:34:59 fpgmsi kernel: Code: 49 89 cd 31 c9 41 54 49 89 f4 48 c1 ee
0c 53 48 83 ec 08 48 8b 7f 30 44 89 45 d4 e8 79 b3 23 f1 48 89 c3 31 c0 48 85
db 74 77 <48> 8b 13 b8 00 10 00 00 f7 c2 00 00 01 00 74 10 0f b6 4b 51 48 d3
abr 11 09:34:59 fpgmsi kernel: RSP: 0018:ffffaab6865ffbf8 EFLAGS: 00010282
abr 11 09:34:59 fpgmsi kernel: RAX: 0000000000000000 RBX: fffffffffffffffe
RCX: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: RBP: ffffaab6865ffc28 R08: 0000000000000001
R09: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: R10: 0000000000023854 R11: 0000000000000000
R12: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: R13: ffffaab6865ffc78 R14: ffff906675d8aed0
R15: ffffaab6865ffc70
abr 11 09:34:59 fpgmsi kernel: FS: 00007bd4d594b6c0(0000)
GS:ffff90753f800000(0000) knlGS:0000000000000000
abr 11 09:34:59 fpgmsi kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
abr 11 09:34:59 fpgmsi kernel: CR2: fffffffffffffffe CR3: 000000017022a000
CR4: 0000000000750ef0
abr 11 09:34:59 fpgmsi kernel: PKRU: 55555554
abr 11 09:34:59 fpgmsi kernel: Call Trace:
abr 11 09:34:59 fpgmsi kernel: <TASK>
abr 11 09:34:59 fpgmsi kernel: ? show_regs+0x6d/0x80
abr 11 09:34:59 fpgmsi kernel: ? __die+0x24/0x80
abr 11 09:34:59 fpgmsi kernel: ? page_fault_oops+0x99/0x1b0
abr 11 09:34:59 fpgmsi kernel: ? kernelmode_fixup_or_oops+0xb2/0x140
abr 11 09:34:59 fpgmsi kernel: ? __bad_area_nosemaphore+0x1a5/0x2c0
abr 11 09:34:59 fpgmsi kernel: ? bad_area_nosemaphore+0x16/0x30
abr 11 09:34:59 fpgmsi kernel: ? do_kern_addr_fault+0x7b/0xa0
abr 11 09:34:59 fpgmsi kernel: ? exc_page_fault+0x1a4/0x1b0
abr 11 09:34:59 fpgmsi kernel: ? asm_exc_page_fault+0x27/0x30
abr 11 09:34:59 fpgmsi kernel: ? cifs_flush_folio+0x41/0xf0 [cifs]
abr 11 09:34:59 fpgmsi kernel: ? cifs_flush_folio+0x37/0xf0 [cifs]
abr 11 09:34:59 fpgmsi kernel: cifs_remap_file_range+0x172/0x660 [cifs]
abr 11 09:34:59 fpgmsi kernel: do_clone_file_range+0x101/0x2d0
abr 11 09:34:59 fpgmsi kernel: vfs_clone_file_range+0x3f/0x150
abr 11 09:34:59 fpgmsi kernel: ioctl_file_clone+0x52/0xc0
abr 11 09:34:59 fpgmsi kernel: do_vfs_ioctl+0x68f/0x910
abr 11 09:34:59 fpgmsi kernel: ? __fget_light+0xa5/0x120
abr 11 09:34:59 fpgmsi kernel: __x64_sys_ioctl+0x7d/0xf0
abr 11 09:34:59 fpgmsi kernel: do_syscall_64+0x59/0x90
abr 11 09:34:59 fpgmsi kernel: ? kmem_cache_free+0x22/0x3e0
abr 11 09:34:59 fpgmsi kernel: ? putname+0x5b/0x80
abr 11 09:34:59 fpgmsi kernel: ? exit_to_user_mode_prepare+0x30/0xb0
abr 11 09:34:59 fpgmsi kernel: ? syscall_exit_to_user_mode+0x37/0x60
abr 11 09:34:59 fpgmsi kernel: ? do_syscall_64+0x68/0x90
abr 11 09:34:59 fpgmsi kernel: ? do_syscall_64+0x68/0x90
abr 11 09:34:59 fpgmsi kernel: ? do_syscall_64+0x68/0x90
abr 11 09:34:59 fpgmsi kernel: entry_SYSCALL_64_after_hwframe+0x6e/0xd8
abr 11 09:34:59 fpgmsi kernel: RIP: 0033:0x7bd4ff12396f
abr 11 09:34:59 fpgmsi kernel: Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60
c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00
00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
abr 11 09:34:59 fpgmsi kernel: RSP: 002b:00007bd4d59498a0 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
abr 11 09:34:59 fpgmsi kernel: RAX: ffffffffffffffda RBX: 0000000000000023
RCX: 00007bd4ff12396f
abr 11 09:34:59 fpgmsi kernel: RDX: 0000000000000023 RSI: 0000000040049409
RDI: 000000000000002c
abr 11 09:34:59 fpgmsi kernel: RBP: 000000000000002c R08: 00007bd4c80008e0
R09: 0000000000000007
abr 11 09:34:59 fpgmsi kernel: R10: 00007bd4c80026b0 R11: 0000000000000246
R12: 00007bd4c8001380
abr 11 09:34:59 fpgmsi kernel: R13: 00007bd4d5949a10 R14: 00007bd4c8001e20
R15: 00007bd4d5949a00
abr 11 09:34:59 fpgmsi kernel: </TASK>
abr 11 09:34:59 fpgmsi kernel: Modules linked in: rfcomm snd_seq_dummy
snd_hrtimer vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nls_utf8 cifs cifs_arc4
cifs_md4 fscache netfs cmac algif_hash algif_skcipher af_alg nft_chain_nat
nvidia_uvm(POE) nf_nat bnep zram xt_tcpudp sunrpc xt_conntrack nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables binfmt_misc nfnetlink
nls_iso8859_1 intel_rapl_msr intel_rapl_common intel_uncore_frequency
intel_uncore_frequency_common snd_sof_pci_intel_tgl nvidia_drm(POE)
snd_sof_intel_hda_common nvidia_modeset(POE) soundwire_intel
x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_hda_mlink soundwire_cadence
snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_hda_codec_realtek snd_sof
snd_hda_codec_generic ledtrig_audio snd_sof_utils snd_soc_hdac_hda
snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi
soundwire_generic_allocation snd_hda_codec_hdmi soundwire_bus snd_soc_core
snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_dspc
fg snd_intel_sdw_acpi snd_hda_codec snd_hda_core
abr 11 09:34:59 fpgmsi kernel: snd_hwdep coretemp iwlmvm snd_pcm btusb btrtl
kvm_intel btbcm snd_seq_midi snd_seq_midi_event btintel cmdlinepart mac80211
btmtk snd_rawmidi spi_nor nvidia(POE) libarc4 kvm bluetooth snd_seq mtd iwlwifi
pmt_telemetry snd_seq_device pmt_class snd_timer irqbypass rapl ecdh_generic
joydev intel_cstate input_leds wmi_bmof mxm_wmi ecc cfg80211 snd mei_me
i2c_i801 spi_intel_pci soundcore mei spi_intel i2c_smbus intel_vsec
serial_multi_instantiate acpi_pad acpi_tad mac_hid tcp_bbr sch_fq vmwgfx
drm_ttm_helper ttm drm_kms_helper parport_pc ppdev lp parport drm efi_pstore
dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log msr lz4
lz4_compress hid_generic usbhid hid crct10dif_pclmul crc32_pclmul
polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 sha1_ssse3
aesni_intel nvme crypto_sim
d cryptd nvme_core igc ahci xhci_pci libahci nvme_common
abr 11 09:34:59 fpgmsi kernel: xhci_pci_renesas video wmi pinctrl_alderlake
abr 11 09:34:59 fpgmsi kernel: CR2: fffffffffffffffe
abr 11 09:34:59 fpgmsi kernel: ---[ end trace 0000000000000000 ]---
abr 11 09:34:59 fpgmsi kernel: RIP: 0010:cifs_flush_folio+0x41/0xf0 [cifs]
abr 11 09:34:59 fpgmsi kernel: Code: 49 89 cd 31 c9 41 54 49 89 f4 48 c1 ee
0c 53 48 83 ec 08 48 8b 7f 30 44 89 45 d4 e8 79 b3 23 f1 48 89 c3 31 c0 48 85
db 74 77 <48> 8b 13 b8 00 10 00 00 f7 c2 00 00 01 00 74 10 0f b6 4b 51 48 d3
abr 11 09:34:59 fpgmsi kernel: RSP: 0018:ffffaab6865ffbf8 EFLAGS: 00010282
abr 11 09:34:59 fpgmsi kernel: RAX: 0000000000000000 RBX: fffffffffffffffe
RCX: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: RBP: ffffaab6865ffc28 R08: 0000000000000001
R09: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: R10: 0000000000023854 R11: 0000000000000000
R12: 0000000000000000
abr 11 09:34:59 fpgmsi kernel: R13: ffffaab6865ffc78 R14: ffff906675d8aed0
R15: ffffaab6865ffc70
abr 11 09:34:59 fpgmsi kernel: FS: 00007bd4d594b6c0(0000)
GS:ffff90753f800000(0000) knlGS:0000000000000000
abr 11 09:34:59 fpgmsi kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
abr 11 09:34:59 fpgmsi kernel: CR2: fffffffffffffffe CR3: 000000017022a000
CR4: 0000000000750ef0
abr 11 09:34:59 fpgmsi kernel: PKRU: 55555554
abr 11 09:34:59 fpgmsi kernel: note: Thread (pooled)[28103] exited with irqs
disabled
After that error the CIFS filesystem just became unusable.
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: linux-image-6.5.0-27-generic 6.5.0-27.28
ProcVersionSignature: Ubuntu 6.5.0-27.28-generic 6.5.13
Uname: Linux 6.5.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: fprietog 11499 F.... wireplumber
/dev/snd/controlC1: fprietog 11499 F.... wireplumber
/dev/snd/seq: fprietog 11497 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 11 09:35:10 2024
InstallationDate: Installed on 2015-04-02 (3296 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-27-generic
root=UUID=07a25daf-33fb-475f-86e0-72ec5d0b3702 ro noplymouth
nvidia-drm.modeset=1
RelatedPackageVersions:
linux-restricted-modules-6.5.0-27-generic N/A
linux-backports-modules-6.5.0-27-generic N/A
linux-firmware 20230919.git3672ccab-0ubuntu2.9
SourcePackage: linux
UpgradeStatus: Upgraded to mantic on 2023-10-25 (169 days ago)
dmi.bios.date: 04/26/2022
dmi.bios.release: 5.24
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: D.50
dmi.board.asset.tag: Default string
dmi.board.name: PRO Z690-A WIFI (MS-7D25)
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: 2.1
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: 2.1
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrD.50:bd04/26/2022:br5.24:svnMicro-StarInternationalCo.,Ltd.:pnMAGZ690CodexX5(MS-B930):pvr2.1:rvnMicro-StarInternationalCo.,Ltd.:rnPROZ690-AWIFI(MS-7D25):rvr2.1:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.1:skuB930.D:
dmi.product.family: Desktop
dmi.product.name: MAG Z690 Codex X5 (MS-B930)
dmi.product.sku: B930.D
dmi.product.version: 2.1
dmi.sys.vendor: Micro-Star International Co., Ltd.
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