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Bug#724951: marked as done (btrfs-tools: btrfs device stats show error (no such device) for newly added disk until FS remount)

Your message dated Mon, 06 Feb 2017 01:21:32 +0900
with message-id <1486311692.11965.4.camel@gmail.com>
and subject line RE: btrfs-progs: btrfs filesystem defrag order of arguments different results
has caused the Debian Bug report #724951,
regarding btrfs-tools: btrfs device stats show error (no such device) for newly added disk until FS remount
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
724951: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=724951
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: btrfs-tools
Version: 0.19+20130705-2
Severity: normal

When new disk added to btrfs volume, right after adding 'btrfs device stats' failing:

ERROR: ioctl(BTRFS_IOC_GET_DEV_STATS) on /dev/sdg1 failed: No such device
home:/home/amarao# btrfs device remove /dev/sdg1 /media/JBOD/


If filesystem after device adding is unmounted and mounted back everything is ok.

Log to reproduce:

# btrfs device add /dev/sdg1 /media/JBOD/

# btrfs device stats /media/JBOD/
[/dev/sdb1].write_io_errs   0
[/dev/sdb1].read_io_errs    0
[/dev/sdb1].flush_io_errs   0
[/dev/sdb1].corruption_errs 0
[/dev/sdb1].generation_errs 0
[/dev/sdc1].write_io_errs   0
[/dev/sdc1].read_io_errs    0
[/dev/sdc1].flush_io_errs   0
[/dev/sdc1].corruption_errs 0
[/dev/sdc1].generation_errs 0
[/dev/sdd1].write_io_errs   0
[/dev/sdd1].read_io_errs    0
[/dev/sdd1].flush_io_errs   0
[/dev/sdd1].corruption_errs 0
[/dev/sdd1].generation_errs 0
[/dev/sde1].write_io_errs   0
[/dev/sde1].read_io_errs    0
[/dev/sde1].flush_io_errs   0
[/dev/sde1].corruption_errs 0
[/dev/sde1].generation_errs 0
[/dev/sdf1].write_io_errs   0
[/dev/sdf1].read_io_errs    0
[/dev/sdf1].flush_io_errs   0
[/dev/sdf1].corruption_errs 0
[/dev/sdf1].generation_errs 0
ERROR: ioctl(BTRFS_IOC_GET_DEV_STATS) on /dev/sdg1 failed: No such device

# btrfs device delete /dev/sdg1 /media/JBOD/
# btrfs device add /dev/sdg1 /media/JBOD/
# umount /media/JBOD/
# mount /dev/sdb1 /media/JBOD/

# btrfs device stats /media/JBOD/
[/dev/sdb1].write_io_errs   0
[/dev/sdb1].read_io_errs    0
[/dev/sdb1].flush_io_errs   0
[/dev/sdb1].corruption_errs 0
[/dev/sdb1].generation_errs 0
[/dev/sdc1].write_io_errs   0
[/dev/sdc1].read_io_errs    0
[/dev/sdc1].flush_io_errs   0
[/dev/sdc1].corruption_errs 0
[/dev/sdc1].generation_errs 0
[/dev/sdd1].write_io_errs   0
[/dev/sdd1].read_io_errs    0
[/dev/sdd1].flush_io_errs   0
[/dev/sdd1].corruption_errs 0
[/dev/sdd1].generation_errs 0
[/dev/sde1].write_io_errs   0
[/dev/sde1].read_io_errs    0
[/dev/sde1].flush_io_errs   0
[/dev/sde1].corruption_errs 0
[/dev/sde1].generation_errs 0
[/dev/sdf1].write_io_errs   0
[/dev/sdf1].read_io_errs    0
[/dev/sdf1].flush_io_errs   0
[/dev/sdf1].corruption_errs 0
[/dev/sdf1].generation_errs 0
[/dev/sdg1].write_io_errs   0
[/dev/sdg1].read_io_errs    0
[/dev/sdg1].flush_io_errs   0
[/dev/sdg1].corruption_errs 0
[/dev/sdg1].generation_errs 0


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages btrfs-tools depends on:
ii  e2fslibs    1.42.8-1
ii  libblkid1   2.20.1-5.5
ii  libc6       2.17-93
ii  libcomerr2  1.42.8-1
ii  liblzo2-2   2.06-1.2
ii  libuuid1    2.20.1-5.5
ii  zlib1g      1:1.2.8.dfsg-1

btrfs-tools recommends no packages.

btrfs-tools suggests no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
reassign 724951 linux
fixed 724951 3.13~rc6-1~exp1
thanks

It's not btrfs-progs bug but linux. I've confirmed this with 3.11.10-1 and
3.12.9-1, and not in 3.13~rc6-1~exp1.

--- End Message ---
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