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From: g6094199@freenet.de
To: linux-btrfs@vger.kernel.org
Subject: How to get Super_num_devices in sync with num_devices again?!
Date: Thu, 05 Oct 2017 13:38:02 +0200	[thread overview]
Message-ID: <1bf24e337599ff54dc3d851ba3fbf913@email.freenet.de> (raw)

He Guys!I have an ubuntu 16.04 machine (K4.4 and K4.11, btrfs-progs v4.5.2) running / on btrfs raid1 and for somemonth (after i had to replace a / disk) super_numdevices and num_devices are out of sync peventing me to bootKernels newer than around 4.7 (ifaik), where the kernels began the be more restictive on checking valid btrfsdisks.I tried to remove the raid and converted to single with several balances after that so that there are no raidchunks left.Label: 'System'  uuid: 35fdbfd4-5809-4a30-94c1-5e3ca206ca4d    Total devices 1 FS bytes used 14.86GiB    devid    6 size 50.00GiB used 17.31GiB path /dev/nvme0n1p1Data, single: total=15.00GiB, used=13.84GiBSystem, single: total=64.00MiB, used=16.00KiBMetadata, single: total=2.25GiB, used=1.02GiBGlobalReserve, single: total=336.00MiB, used=0.00B/dev/nvme0n1p1, ID: 6   Device size:            50.00GiB   Data,single:            15.00GiB   Metadata,single:         2.25GiB   System,single:          6400MiB   Unallocated:            32.69GiBOverall:    Device size:          50.00GiB    Device allocated:          17.31GiB    Device unallocated:          32.69GiB    Device missing:             0.00B    Used:              1486GiB    Free (estimated):          33.85GiB    (min: 33.85GiB)    Data ratio:                  1.00    Metadata ratio:              1.00    Global reserve:         336.00MiB    (used: 0.00B)Data,single: Size:15.00GiB, Used:13.84GiB   /dev/nvme0n1p1      15.00GiBMetadata,single: Size:2.25GiB, Used:1.02GiB   /dev/nvme0n1p1       2.25GiBSystem,single: Size:64.00MiB, Used:1600KiB   /dev/nvme0n1p1      64.00MiBUnallocated:   /dev/nvme0n1p1      32.69GiBBut again newer kernels refuse to boot with tlling me: "BTRFS error....: super_num_devices 2 missmatchwith num_devices 1 found here".So the the two counters are alwasy off by one, dont matter what i try.Question: how do i get thouse two counters in sync again so that my system acts again as expected?!regardsSash

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             reply	other threads:[~2017-10-05 11:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-05 11:38 g6094199 [this message]
2017-10-08  0:06 ` How to get Super_num_devices in sync with num_devices again?! g6094199

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