Arch Linux

Summary and Info:
# pacman -Syu
:: Synchronizing package databases...
error: failed to update core (unable to lock database)
error: failed to update extra (unable to lock database)
error: failed to update community (unable to lock database)
error: failed to update archlinuxfr (unable to lock database)
error: failed to synchronize all databases
#

Steps to Reproduce:
1. Make btrfs crash.
2. Run `pacman -Syu`

I understand from  FS#55975  that the lock file should not be automatically deleted (f.e. on reboot).

I also know that this system crashed due to some btrfs error. Usually the best approach for those kind of issues is to stay (kernel) updated.

In  FS#55975  pacman outputs:
if you're sure a package manager is not already
running, you can remove /var/lib/pacman/db.lck

Such a handy message is missing in the above error case where all locks fail.
For usability at least tell once which path the "(unable to lock database)" is referring to.

In other words, the issue is that pacman does not tell me the path (/var/lib/pacman/db.lck), in contrary to error messages as shown in  FS#47188  and  FS#10946 .