sshfs crashes entire Ubuntu 20.04.1 LTS system

Hello foobar, is your system otherwise reliable if sshfs isn't in use? does it matter if the package is installed but not configured?

About the "unbootable" problem, I suspect that may have been due to a recent grub update: https://ubuntu.com/security/notices/USN-4432-2

Thanks

Hi Seth:

Thanks for looking into this bug.

Re unreliable w/o sshfs:

No, 20.04.1 LTS is quite reliable; so far the only crash has been while
using sshfs; when I'm not using sshfs, it works fine.

Re unbootable:

I don't think it has anything to do with grub; the sshfs crash mucks up the
boot drive file system, so that I have to fsck it using another computer.
But most of the time the boot drive is so mucked up, that fsck can't
fix it enough to boot.

Henry Baker
Santa Barbara, CA

At 04:44 PM 8/12/2020, Seth Arnold wrote:
>Hello foobar, is your system otherwise reliable if sshfs isn't in use?
>does it matter if the package is installed but not configured?
>
>About the "unbootable" problem, I suspect that may have been due to a
>recent grub update: https://ubuntu.com/security/notices/USN-4432-2
>
>Thanks
>
>** Information type changed from Private Security to Public Security
>
>--
>You received this bug notification because you are subscribed to the bug
>report.
>https://bugs.launchpad.net/bugs/1891361
>
>Title:
> sshfs crashes entire Ubuntu 20.04.1 LTS system
>
>Status in sshfs-fuse package in Ubuntu:
> New
>
>Bug description:
> I just upgraded to Ubuntu 20.04.1 LTS, and started to use sshfs to
> access some data files on a network drive, as I had done on many
> occasions with previous Ubuntu versions.
>
> However, within a few minutes of mounting a drive using sshfs, Ubuntu
> crashed, and left my boot drive unbootable.
>
> I set up Ubuntu 20.04.1 LTS on another drive (taking 1/2 a day) and
> tried using sshfs again for my data files. Ubuntu crashed again
> within a few minutes, leaving my boot drive unbootable.
>
> So sshfs is apparently unusable on Ubuntu 20.04.1 LTS, as it somehow
> destabilizes the Linux kernel.
>
> ***Note that this may be a FUSE bug, not just a sshfs bug.***
>
> I can access my data utilizing Nautilus sftp:, but I'd rather mount
> the drive with sshfs.
>
> Please help.
>
> Thanks.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: sshfs 3.6.0+repack+really2.10-0ubuntu1
> ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
> Uname: Linux 5.4.0-42-generic x86_64
> ApportVersion: 2.20.11-0ubuntu27.6
> Architecture: amd64
> CasperMD5CheckResult: skip
> CurrentDesktop: ubuntu:GNOME
> Date: Wed Aug 12 09:14:14 2020
> InstallationDate: Installed on 2020-08-06 (6 days ago)
> InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
> ProcEnviron:
> TERM=xterm-256color
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> SourcePackage: sshfs-fuse
> UpgradeStatus: No upgrade log present (probably fresh install)
>
>To manage notifications about this bug go to:
>https://bugs.launchpad.net/ubuntu/+source/sshfs-fuse/+bug/1891361/+subscriptions