"scrub" stops the machine

DISCUSSION Helmut Hullen 3 participants 8 messages Mar 17, 2012 – Mar 19, 2012 1 message not in the archive Btrfs file system

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Helmut Hullen

author

2012-03-17 17:12 UTC #1 lore raw

Hallo, Arne,

Du meintest am 17.03.12 zum Thema Re: "scrub" stops the machine:

Quoted 9 lines · Helmut Hullen

Quoted 6 lines
btrfs scrub start /mnt/btr
and all was dead. Really dead. No access via keybord, no access via SSH.
what kernel are you using?

As mentioned some hours ago: 3.2.9 (self made).

Quoted 1 line

Are you by any chance on a 32 bit maschine?

Yes.

Viele Gruesse!
Helmut

Martin Steigerwald

2012-03-17 18:14 UTC #2 lore raw

Am Samstag, 17. M=E4rz 2012 schrieb Helmut Hullen:

Quoted 1 line

Hallo, Arne,

Hi Helmut, Arne, Chris, hi everyone,

Quoted 5 lines

Du meintest am 17.03.12 zum Thema Re: "scrub" stops the machine:
Quoted 4 lines · Helmut Hullen
Quoted 3 lines
btrfs scrub start /mnt/btr
=20
and all was dead. Really dead. No access via keybord, no access vi=

Quoted 9 lines

Quoted 3 lines
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SSH.
=20
what kernel are you using?
=20
As mentioned some hours ago: 3.2.9 (self made).
=20
Quoted 1 line
Are you by any chance on a 32 bit maschine?
=20
Yes.

Please review the thread I started with subject:

3.2-rc4: scrubbing locks up the kernel, then hung tasks on boot

I had the same issue, but with some recent 3.2 debian kernel it went aw= ay=20
and then the scrub just hang - process in D state. And a patch from Chr= is=20
fixed that.

Arne had two patches to test that he thought might fix the lock up hard= =20
issue, but I didn=B4t need those.

Ciao,
--=20
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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Helmut Hullen

author

2012-03-17 18:35 UTC #3 lore raw

Hallo, Martin,

Du meintest am 17.03.12:

Quoted 4 lines

Quoted 4 lines
Quoted 4 lines
Quoted 4 lines
btrfs scrub start /mnt/btr
and all was dead. Really dead. No access via keybord, no access via SSH.

Kernel 3.2.9

[...]

Quoted 3 lines

Please review the thread I started with subject:
3.2-rc4: scrubbing locks up the kernel, then hung tasks on boot

Your system has run for some seconds and has sent messages. My syste seems to die immediately after receiving "scrub start".

Viele Gruesse!
Helmut

Martin Steigerwald

2012-03-19 08:22 UTC #4 lore raw

Am Samstag, 17. M=E4rz 2012 schrieb Helmut Hullen:

Quoted 10 lines

Du meintest am 17.03.12:
Quoted 4 lines
Quoted 4 lines
Quoted 4 lines
Quoted 4 lines
btrfs scrub start /mnt/btr
=20
and all was dead. Really dead. No access via keybord, no access via SSH.
=20
Kernel 3.2.9
=20
[...]
=20

Quoted 6 lines

Quoted 3 lines
Please review the thread I started with subject:
=20
3.2-rc4: scrubbing locks up the kernel, then hung tasks on boot
=20
Your system has run for some seconds and has sent messages. My syste seems to die immediately after receiving "scrub start".

Initially mine did as well as I wrote in the initial posting.

Then possibly after some kernel upgrade, I did a btrfs filesystem balan= ce=20
on it and then the scrub didn=B4t die immediately, but got stuck. Did y= ou=20
try whether a balance works?

Maybe 3.2.10 oder 3.2.11 contains some related fixes? But then I don=B4= t=20
think that the Debian Wheezy kernel already has 3.2.10 or 3.2.11.

Chris Samuel

2012-03-19 11:00 UTC #5 lore raw

Quoted 1 line · On Monday 19 March 2012 19:22:58 Martin Steigerwald wrote:

Maybe 3.2.10 oder 3.2.11 contains some related fixes?

I don't believe that any btrfs fixes get pushed to the stable releases (at least, not yet), you'll need 3.3 for newer code.

cheers,
Chris

Signature · 4 lines

 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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Martin Steigerwald

2012-03-19 17:10 UTC #6 lore raw

Am Montag, 19. M=C3=A4rz 2012 schrieb Chris Samuel:

Quoted 4 lines · On Monday 19 March 2012 19:22:58 Martin Steigerwald wrote:

Quoted 1 line
Maybe 3.2.10 oder 3.2.11 contains some related fixes?
=20
I don't believe that any btrfs fixes get pushed to the stable release=

Quoted 1 line

(at least, not yet), you'll need 3.3 for newer code.

Well maybe the second btrfs filesystem balance call or a possible upgra= de=20
of btrfs-tools fixed it for me. Cause I didn=C2=B4t do anything specifi= c to fix=20
the hard lock up issue. The getting stuck issue Chris Mason fixed by wi= th=20
casting patch.

Helmut Hullen

author

2012-03-18 08:04 UTC #7 lore raw

In reply to Martin Steigerwald

Hallo, Martin,

Du meintest am 17.03.12:

Quoted 5 lines

Quoted 4 lines
Quoted 4 lines
Quoted 4 lines
btrfs scrub start /mnt/btr
and all was dead. Really dead. No access via keybord, no access via SSH.

Quoted 7 lines

Quoted 7 lines
Quoted 1 line
what kernel are you using?
As mentioned some hours ago: 3.2.9 (self made).
Quoted 1 line
Are you by any chance on a 32 bit maschine?
Yes.

Second try with kernel 3.2.5: same problem.

The system is completely dead.

Viele Gruesse!
Helmut

Chris Samuel

2012-03-18 09:18 UTC #8 lore raw

Quoted 1 line · On Sunday 18 March 2012 19:04:00 Helmut Hullen wrote:

Second try with kernel 3.2.5: same problem.

My understanding is that all 3.2.x versions will have the same btrfs code, if you want to try with a newer version you'll need to try the 3.3 release candidates.

cheers!
Chris

Signature · 4 lines

 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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