The problem reported in this thread has been RESOLVED.
It's not BTRFS's fault.
Debugging on my part led to the actual problem in do_mounts.c - some
filesystems mount routines return error codes other than 0, EACCES and EINVAL
and such return codes result in the kernel panicking without trying
On 27/04/14 13:00, Пламен Петров wrote:
The problem reported in this thread has been RESOLVED.
It's not BTRFS's fault.
Debugging on my part led to the actual problem in do_mounts.c - some
filesystems mount routines return error codes other than 0, EACCES
and EINVAL and such return codes
Chris Mason posted on Thu, 24 Apr 2014 20:08:28 -0400 as excerpted:
On 04/24/2014 08:04 PM, Chris Murphy wrote:
So I don't think the order is it. The biggest difference I'm seeing
between the 3.13.11 and 3.14.1 dmesg's provided:
3.13.11:
[1.861740] bio: create slab bio-1 at 1 [
On Thu, Apr 24, 2014 at 10:23 AM, Chris Murphy li...@colorremedies.com wrote:
It sounds like either a grub.cfg misconfiguration, or a failure to correctly
build the initrd/initramfs. So I'd post the grub.cfg kernel command line for
the boot entry that works and the entry that fails, for
On 04/23/2014 04:58 PM, Marc MERLIN wrote:
On Wed, Apr 23, 2014 at 10:37:44PM +0300, Пламен Петров wrote:
So now, we're kind of guessing. To save us all time, could you capture a serial
console boot from the running 3.13 and then the failing 3.14.
Well, for the details - see for example
On 04/24/2014 08:34 AM, Chris Mason wrote:
On 04/23/2014 04:58 PM, Marc MERLIN wrote:
On Wed, Apr 23, 2014 at 10:37:44PM +0300, Пламен Петров wrote:
So now, we're kind of guessing. To save us all time, could you
capture a serial
console boot from the running 3.13 and then the failing 3.14.
-Original Message-
From: Chris Mason [mailto:c...@fb.com]
Sent: Thursday, April 24, 2014 3:36 PM
To: Marc MERLIN; Пламен Петров
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On 04/24/2014 08:34 AM, Chris Mason
-Original Message-
From: Пламен Петров [mailto:pla...@petrovi.no-ip.info]
Sent: Wednesday, April 23, 2014 10:38 PM
To: 'Marc MERLIN'
Cc: 'linux-btrfs@vger.kernel.org'
Subject: RE: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
-Original Message-
On Thu, Apr 24, 2014 at 08:19:21PM +0300, Пламен Петров wrote:
I just realized that the l gave no way for identifying the particular
bugzilla entry. Here it is:
https://bugzilla.kernel.org/show_bug.cgi?id=74261
Thanks.
But to save us a lot more speculation, can you please try booting a
linux
-Original Message-
From: Marc MERLIN [mailto:m...@merlins.org]
Sent: Thursday, April 24, 2014 8:33 PM
To: Пламен Петров
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Thu, Apr 24, 2014 at 08:19:21PM +0300,
On Thu, Apr 24, 2014 at 09:51:30PM +0300, Пламен Петров wrote:
So, here is what I did:
My debug VM had:
sda
sda1 200 MB /boot - ext2
sda2 5 GB / - BTRFS
sda3 5 GB / - XFS
sda4 One extra partition used for mangling (XFS).
sda2 and sda3 were mostly the same, except
-Original Message-
From: Marc MERLIN [mailto:m...@merlins.org]
Sent: Thursday, April 24, 2014 10:31 PM
To: Пламен Петров
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Thu, Apr 24, 2014 at 09:51:30PM +0300,
On Apr 24, 2014, at 12:51 PM, Пламен Петров pla...@petrovi.no-ip.info wrote:
I booted 3.14.1 using sda3 as root, and then tried mounting sda2. It went OK,
here is what dmesg said:
[ 12.412465] Btrfs loaded
For me, with Btrfs not compiled in the kernel, and with an initramfs, on SSD I
-Original Message-
From: Chris Murphy [mailto:li...@colorremedies.com]
Sent: Friday, April 25, 2014 12:06 AM
To: Пламен Петров
Cc: 'Marc MERLIN'; linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Apr 24, 2014, at
On Apr 24, 2014, at 2:26 PM, Пламен Петров pla...@petrovi.no-ip.info wrote:
-Original Message-
From: Marc MERLIN [mailto:m...@merlins.org]
You said using rootwait as recommended by Chris Mason did not help.
What output are you getting when you use this?
The image file attached
On Fri, Apr 25, 2014 at 01:22:32AM +0300, Пламен Петров wrote:
-Original Message-
From: Chris Murphy [mailto:li...@colorremedies.com]
Sent: Friday, April 25, 2014 12:06 AM
To: Пламен Петров
Cc: 'Marc MERLIN'; linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system
On Apr 24, 2014, at 5:07 PM, Marc MERLIN m...@merlins.org wrote:
In 3.14 the device shows up before btrfs is loaded:
sd 2:0:0:0: [sda] Cache data unavailable
sd 2:0:0:0: [sda] Assuming drive cache: write through
sd 2:0:0:0: [sda] Attached SCSI disk
(...)
Btrfs loaded
Same for me
On 04/24/2014 08:04 PM, Chris Murphy wrote:
On Apr 24, 2014, at 5:07 PM, Marc MERLIN m...@merlins.org wrote:
In 3.14 the device shows up before btrfs is loaded:
sd 2:0:0:0: [sda] Cache data unavailable
sd 2:0:0:0: [sda] Assuming drive cache: write through
sd 2:0:0:0: [sda] Attached SCSI
-Original Message-
From: Chris Murphy [mailto:li...@colorremedies.com]
Sent: Friday, April 25, 2014 3:04 AM
To: Marc MERLIN
Cc: Пламен Петров; linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Apr 24, 2014, at 5:07
-Original Message-
From: Chris Mason [mailto:c...@fb.com]
Sent: Friday, April 25, 2014 3:08 AM
To: Chris Murphy; Marc MERLIN
Cc: Пламен Петров; linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On 04/24/2014 08:04 PM,
Can anyone boot a system using btrfs root with linux 3.14 or newer?
Because I can't.
I'm trying to move some 3.13.x based systems to 3.14.x and the kernel panics
during boot. It says to append a correct root=sdaX partition, but the one
provided is correct, because if use 3.13.x with the same
On Wed, Apr 23, 2014 at 08:30:08PM +0300, Пламен Петров wrote:
Can anyone boot a system using btrfs root with linux 3.14 or newer?
Because I can't.
It works fine for me.
I'm trying to move some 3.13.x based systems to 3.14.x and the kernel panics
during boot. It says to append a correct
On Wed, Apr 23, 2014 at 11:54:13AM -0700, Marc MERLIN wrote:
On Wed, Apr 23, 2014 at 08:30:08PM +0300, Пламен Петров wrote:
Can anyone boot a system using btrfs root with linux 3.14 or newer?
Because I can't.
It works fine for me.
I'm trying to move some 3.13.x based systems to
On Wed, Apr 23, 2014 at 10:06:12PM +0300, Пламен Петров wrote:
Just to clarify - I am using a monolithic kernel built from source, and it
has all the stuff it needs to support built-in, and then some. And no modules.
The sources I'm using are the vanilla kernels from Linus and Greg KH
Пламен Петров pla...@petrovi.no-ip.info schrieb:
I'm going with the module suggestion from Marc, too.
/dev/sda2 / btrfs relatime,compress=zlib 0 0
This line looks kinda useless to me. The compress=zlib option won't be
applied at boot and cannot be changed at
-Original Message-
From: Marc MERLIN [mailto:m...@merlins.org]
Sent: Wednesday, April 23, 2014 10:16 PM
To: Пламен Петров
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Wed, Apr 23, 2014 at 10:06:12PM +0300,
On Wed, 2014-04-23 at 21:06 +0200, Kai Krakow wrote:
Пламен Петров pla...@petrovi.no-ip.info schrieb:
I'm going with the module suggestion from Marc, too.
/dev/sda2 / btrfs relatime,compress=zlib 0 0
This line looks kinda useless to me. The compress=zlib
On Wed, Apr 23, 2014 at 10:37:44PM +0300, Пламен Петров wrote:
So now, we're kind of guessing. To save us all time, could you capture a
serial
console boot from the running 3.13 and then the failing 3.14.
Well, for the details - see for example here:
On Thu, Apr 24, 2014 at 12:54:57AM +0300, Пламен Петров wrote:
It may help to look up what error -38 translates into for that mount error.
My searches so far failed to return anything useful to solving this problem.
Yeah, I searched before you :) this would require reading the kernel source
-Original Message-
From: Marc MERLIN [mailto:m...@merlins.org]
Sent: Thursday, April 24, 2014 1:03 AM
To: Пламен Петров
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or
newer?
On Thu, Apr 24, 2014 at 12:54:57AM +0300,
On Apr 23, 2014, at 1:06 PM, Kai Krakow hurikhan77+bt...@gmail.com wrote:
Пламен Петров pla...@petrovi.no-ip.info schrieb:
I'm going with the module suggestion from Marc, too.
/dev/sda2 / btrfs relatime,compress=zlib 0 0
This line looks kinda useless to
On Wed, Apr 23, 2014 at 03:03:12PM -0700, Marc MERLIN wrote:
On Thu, Apr 24, 2014 at 12:54:57AM +0300, Пламен Петров wrote:
It may help to look up what error -38 translates into for that mount
error.
My searches so far failed to return anything useful to solving this problem.
The screen shot provided makes it clear that one of the following kernel
parameters is incorrect:
root=/dev/mapper/cryptroot
rootflags=subvol=root
So either the dmcrypt volume hasn't been opened, thus isn't available; or
rootfs isn't on a subvolume named root found at the top level of the
On Wed, Apr 23, 2014 at 04:40:33PM -0600, Chris Murphy wrote:
The screen shot provided makes it clear that one of the following kernel
parameters is incorrect:
root=/dev/mapper/cryptroot
rootflags=subvol=root
So either the dmcrypt volume hasn't been opened, thus isn't available; or
On Wed, Apr 23, 2014 at 11:43:03PM +0100, Hugo Mills wrote:
On Wed, Apr 23, 2014 at 04:40:33PM -0600, Chris Murphy wrote:
The screen shot provided makes it clear that one of the following kernel
parameters is incorrect:
root=/dev/mapper/cryptroot
rootflags=subvol=root
So
On Wed, Apr 23, 2014 at 03:50:18PM -0700, Marc MERLIN wrote:
On Wed, Apr 23, 2014 at 11:43:03PM +0100, Hugo Mills wrote:
On Wed, Apr 23, 2014 at 04:40:33PM -0600, Chris Murphy wrote:
The screen shot provided makes it clear that one of the following kernel
parameters is incorrect:
It sounds like either a grub.cfg misconfiguration, or a failure to correctly
build the initrd/initramfs. So I'd post the grub.cfg kernel command line for
the boot entry that works and the entry that fails, for comparison.
And then also check and see if whatever utility builds your initrd has
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