This issue, or variant thereof, has been observed on Ubuntu 20.04 and Linux 
Mint 20.
I'm not 100% sure yet but it SEEMS to be affecting systems with a floppy drive.

Can end up with bootup-messages:-

[timestamp] Btrfs loaded, crc32c=crc32c-generic
Scanning for Btrfs filesystems
[timestamp] floppy0: floppy_queue_rq: timeout handler died.  old request running

removing 'btrfs-progs' (which then removes from initrd) works around the issue 
reliably.
I need to double-check, i think kernel command line  modprobe.blacklist=floppy  
 can also workaround issue.
Last I checked, I didn't find this to be specific to a particular kernel/series.

Certainly experienced this on totally different hardwre, e.g. an intel
core-2-duo in compaq Dx2300,  but also on a completely different HP
motherboard AMD64 machine/chipset.  From what I can see this is not
particular hardware specific either!.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1460447

Title:
  Boot slow, "scanning for btrfs filesystems" takes 100 seconds

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to