mdadm --detail works, mdadm --stop says "does not appear to be an md device"

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gargamel:~# cat /proc/mdstat 
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] 
md6 : active raid5 sdn1[3](F) sdt1[0](F) sds1[1](F) sdq1[2](F)
      23441547264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [5/0] [_____]
gargamel:~# mdadm --stop /dev/md6
mdadm: /dev/md6 does not appear to be an md device
gargamel:~# mdadm --detail /dev/md6
/dev/md6:
           Version : 1.2
     Creation Time : Wed Jul  8 10:09:21 2020
        Raid Level : raid5
        Array Size : 23441547264 (22355.60 GiB 24004.14 GB)
     Used Dev Size : 5860386816 (5588.90 GiB 6001.04 GB)
      Raid Devices : 5
     Total Devices : 4
       Persistence : Superblock is persistent

       Update Time : Fri Mar 17 09:17:28 2023
             State : clean, FAILED 
    Active Devices : 0
    Failed Devices : 4
     Spare Devices : 0

            Layout : left-symmetric
        Chunk Size : 512K

Consistency Policy : ppl

    Number   Major   Minor   RaidDevice State
       -       0        0        0      removed
       -       0        0        1      removed
       -       0        0        2      removed
       -       0        0        3      removed
       -       0        0        4      removed


How do I clear this without a reboot?

gargamel:~# uname -r
5.19.7


-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
 
Home page: http://marc.merlins.org/                       | PGP 7F55D5F27AAF9D08



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