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Bug#988352: linux-image-4.19.0-16-amd64: none

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  Bug#988352: linux-image-4.19.0-16-amd64: none Johann Grabmann <johann@grabmann.eu> - 2021-05-11 10:40 +0200
    Bug#988352: linux-image-4.19.0-16-amd64: none Salvatore Bonaccorso <carnil@debian.org> - 2021-05-11 12:00 +0200

#71498 — Bug#988352: linux-image-4.19.0-16-amd64: none

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Package: src:linux
Version: 4.19.181-1
Severity: wishlist

Dear Maintainer,

there seems to be a problem with cifs at *4.19.181-1 (**4.19.0-16-amd64*).
With *4.19.171-2 (2021-01-30) (**linux-image-4.19.0-14-amd64**)* the error
could NOT be reproduced, there it works as expected.

Problem when trying to mount a CIFS-share:
mount error(20): Not a directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

This is maybe related to the following from the changelog
<https://metadata.ftp-master.debian.org/changelogs//main/l/linux/linux_4.19.181-1_changelog#:~:text=cifs%3A%20set%20cifs_mount_use_prefix_path%20flag%20on%20setting%20cifs_sb-%3Eprepath.>
:

    - cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.

Unfortunately, there is also apparently no possibility of overwriting this
prepath, since the option is only set additionally:
mount.cifs kernel mount options:
ip=xx.xx.xx.xx,unc=\\srv.local\filexchg,vers=1.0,sec=ntlmssp,cache=strict,
*prefixpath=none*,uid=33,gid=33,user=username,domain=local,
*prefixpath=shares/myshare*,pass=********

Cheers,
Johann

-- System Information:
Debian Release: 10.9
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-14-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored:
LC_ALL set to en_US.UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) (ignored:
LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-4.19.0-16-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.133+deb10u1
ii  kmod                                    26-1
ii  linux-base                              4.6

Versions of packages linux-image-4.19.0-16-amd64 recommends:
ii  apparmor             2.13.2-10
ii  firmware-linux-free  3.4

Versions of packages linux-image-4.19.0-16-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.02+dfsg1-20+deb10u4
pn  linux-doc-4.19          <none>

Versions of packages linux-image-4.19.0-16-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

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#71499

Hi,

On Tue, May 11, 2021 at 10:27:35AM +0200, Johann Grabmann wrote:
> Package: src:linux
> Version: 4.19.181-1
> Severity: wishlist
> 
> Dear Maintainer,
> 
> there seems to be a problem with cifs at *4.19.181-1 (**4.19.0-16-amd64*).
> With *4.19.171-2 (2021-01-30) (**linux-image-4.19.0-14-amd64**)* the error
> could NOT be reproduced, there it works as expected.
> 
> Problem when trying to mount a CIFS-share:
> mount error(20): Not a directory
> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
> 
> This is maybe related to the following from the changelog
> <https://metadata.ftp-master.debian.org/changelogs//main/l/linux/linux_4.19.181-1_changelog#:~:text=cifs%3A%20set%20cifs_mount_use_prefix_path%20flag%20on%20setting%20cifs_sb-%3Eprepath.>
> :
> 
>     - cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.
> 
> Unfortunately, there is also apparently no possibility of overwriting this
> prepath, since the option is only set additionally:
> mount.cifs kernel mount options:
> ip=xx.xx.xx.xx,unc=\\srv.local\filexchg,vers=1.0,sec=ntlmssp,cache=strict,
> *prefixpath=none*,uid=33,gid=33,user=username,domain=local,
> *prefixpath=shares/myshare*,pass=********

Thanks for reporting, for dtails see
https://lore.kernel.org/stable/YGxIMCsclG4E1%2Fck@eldamar.lan/

It is in any case pending for the next upload for buster.

Regards,
Salvatore

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