Re: something is hammering non-existant floppy

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On Sun, Dec 12, 2021 at 07:45:03AM -0500, Jonathan Billings wrote:
On Dec 11, 2021, at 23:19, Jon LaBadie <jcu@xxxxxxxxxx> wrote:

On my CentOS7 system, I'm getting message sequences in
/var/log/message and in the journal that are nearly identical
to the sequence below.  They come in multiple times per second.

I've deleted the timestamps and system name from the messages.

kernel: floppy0: Getstatus times out (0) on fdc 0
kernel: kernel: floppy driver state
kernel: -------------------
kernel: now=4476158515 last interrupt=4476158452 diff=63 last called handler=reset_interrupt [floppy]
kernel: timeout_message=floppy start
kernel: last output bytes:
kernel: 8 81 4388061306
kernel: 3 80 4388061326
...
kernel: 8 80 4476158452
kernel: 12 80 4476158471
kernel: last result at 4476158452
kernel: last redo_fd_request at 4476158471
kernel: status=0
kernel: fdc_busy=1
kernel: timer_function=ffffffffc01daf70 expires=2957
kernel: cont=ffffffffc01dc400
kernel: current_req=ffff9b0e72239c80
kernel: command_status=-1
kernel:
I persume something is trying to access the system's
floppy disk drive that does not exist.  But I have
been unable to identify what's triggering all this
activity.

Any suggestions?

Any chance you have something like automount/autofs set up with
a mountpoint for the floppy device?

—
Jonathan Billings

Certainly not intentionally.  And nothing in /etc/auto.* to
suggest so.  Also:

$ systemctl status autofs.service
● autofs.service - Automounts filesystems on demand
   Loaded: loaded (/usr/lib/systemd/system/autofs.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

On my two Fedora systems I get "autofs.service not found".
Perhaps it is masked there.

Jon

--
Jon H. LaBadie                  jcu@xxxxxxxxxx
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