Am Dienstag, 22. Juli 2014, 17:15:21 schrieb Chris Mason:
> On 07/22/2014 05:13 PM, Martin Steigerwald wrote:
> > Am Dienstag, 22. Juli 2014, 10:53:03 schrieb Chris Mason:
> >> On 07/19/2014 02:23 PM, Martin Steigerwald wrote:
> >>>> Running 3.15.6 with this patch applied on top:
> >>>> - still causes a hang with `rsync -hPaHAXx --del /mnt/home/nyx/
> >>>> /home/nyx/`
> >>>>
> >>>> - no extra error messages printed (`dmesg | grep racing`) compared to
> >>>> without the patch
> >>>
> >>> I got same results with 3.16-rc5 + this patch (see thread BTRFS hang
> >>> with
> >>> 3.16-rc5). 3.16-rc4 still is fine with me. No hang whatsoever so far.
> >>>
> >>>> To recap some details (so I can have it all in one place):
> >>>> - /home/ is btrfs with compress=lzo
> >>>
> >>> BTRFS RAID 1 with lzo.
> >>>
> >>>> - I have _not_ created any nodatacow files.
> >>>
> >>> Me neither.
> >>>
> >>>> - Full stack is: sata <-> dmcrypt <-> lvm <-> btrfs (I noticed others
> >>>>
> >>>> mentioning the use of dmcrypt)
> >>>
> >>> Same, except no dmcrypt.
> >>
> >> Thanks for the help in tracking this down everyone. We'll get there!
> >> Are you all running multi-disk systems (from a btrfs POV, more than one
> >> device?) I don't care how many physical drives this maps to, just does
> >> btrfs think there's more than one drive.
> >
> > As I told before I am using BTRFS RAID 1. Two logival volumes on two
> > distinct SSDs. RAID is directly in BTRFS, no SoftRAID here (which I
> > wouldn´t want to use with SSDs anyway).
>
> When you say logical volumes, you mean LVM right? Just making sure I
> know all the pieces involved.
Exactly.
As a recap from the other thread:
merkaba:~> btrfs fi sh /home
Label: 'home' uuid: […]
Total devices 2 FS bytes used 123.20GiB
devid 1 size 160.00GiB used 159.98GiB path /dev/mapper/msata-home
devid 2 size 160.00GiB used 159.98GiB path /dev/dm-3
Btrfs v3.14.1
merkaba:~#1> btrfs fi df /home
Data, RAID1: total=154.95GiB, used=120.61GiB
System, RAID1: total=32.00MiB, used=48.00KiB
Metadata, RAID1: total=5.00GiB, used=2.59GiB
unknown, single: total=512.00MiB, used=0.00
merkaba:~> df -hT /home
Dateisystem Typ Größe Benutzt Verf. Verw% Eingehängt auf
/dev/mapper/msata-home btrfs 320G 247G 69G 79% /home
merkaba:~> file -sk /dev/sata/home
/dev/sata/home: symbolic link to `../dm-3'
merkaba:~> file -sk /dev/dm-3
/dev/dm-3: BTRFS Filesystem label "home", sectorsize 4096, nodesize 16384,
leafsize 16384, UUID=[…],
132303151104/343597383680 bytes used, 2 devices
And LVM layout:
merkaba:~> lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 279,5G 0 disk
├─sda1 8:1 0 4M 0 part
├─sda2 8:2 0 191M 0 part
├─sda3 8:3 0 286M 0 part
└─sda4 8:4 0 279G 0 part
├─sata-home (dm-3) 254:3 0 160G 0 lvm
├─sata-swap (dm-4) 254:4 0 12G 0 lvm [SWAP]
└─sata-debian (dm-5) 254:5 0 30G 0 lvm
sdb 8:16 0 447,1G 0 disk
├─sdb1 8:17 0 200M 0 part
├─sdb2 8:18 0 300M 0 part /boot
└─sdb3 8:19 0 446,7G 0 part
├─msata-home (dm-0) 254:0 0 160G 0 lvm
├─msata-daten (dm-1) 254:1 0 200G 0 lvm
└─msata-debian (dm-2) 254:2 0 30G 0 lvm
sr0 11:0 1 1024M 0 rom
sda is Intel SSD 320 SATA
sdb is Crucial m500 mSATA
Thanks,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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