Hi.
Two news (one is OT and advertising to my btrfsManage script)
I had to recreate from scratch two corrupted btrfs filesystems probably due to
out of space during a snapshot receive.
Almost it's a habit rebuild the filesystems after a few months.
OT
I have released the latest version of
Hi.
Only for information.
I tried ' check_int ' mount option, but with a few tens of GB used, the
kernel freezes completely (no ops, no messages, no panic, none).
Thanks for all.
Gdb
P.S. Thanks and happy work to all.
>>On Wed, Dec 21, 2016 at 2:09 PM, Chris Murphy
el.org
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
during the snapshot receive
Xin Zhou posted on Mon, 26 Dec 2016 03:36:09 +0100 as excerpted:
> One interesting thing to investigate might be the btrfs send / receive
> result, under a disruptive network environment.
be in other
place.
Xin
Sent: Monday, December 26, 2016 at 3:04 AM
From: "Giuseppe Della Bianca" <b...@adria.it>
To: "Xin Zhou" <xin.z...@gmx.com>, "Btrfs BTRFS" <linux-btrfs@vger.kernel.org>
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable
Hi.
I have executed the test that you have requested.
At this point I'm confused and demoralized
While 40 btrfs receive, btrfs check has reported many filesystem problems.
But at the end of all the btrfs receive, btrfs check did not find filesystem
problem.
My tests have confirmed that the
Hi.
I agree with Duncan, and I add:
- For remote transfer is used ssh.
ssh is designed to ensure integrity of data.
- Remote transfer uses a Gigabit Ethernet, it is never congested.
- I had the same problems with a local btrfs receive.
- The script currently has 907 lines of code, many of
Xin Zhou posted on Mon, 26 Dec 2016 03:36:09 +0100 as excerpted:
> One interesting thing to investigate might be the btrfs send / receive
> result, under a disruptive network environment. If the connection breaks
> in the middle of transfer (at different phase, maybe), see what could be
> the
SYSTEM] Corrupted and unrecoverable file system
during the snapshot receive
Xin Zhou posted on Sat, 24 Dec 2016 21:15:40 +0100 as excerpted:
> The code is relatively new to me, I did not see retry logic in stream
> handling, please correct me if I am wrong about this.
> So, I am not q
Xin Zhou posted on Sat, 24 Dec 2016 21:15:40 +0100 as excerpted:
> The code is relatively new to me, I did not see retry logic in stream
> handling, please correct me if I am wrong about this.
> So, I am not quite sure about the transfer behavior, if the system
> subject to network issues in
day, December 23, 2016 at 9:48 AM
> From: b...@adria.it
> To: "Xin Zhou" <xin.z...@gmx.com>
> Cc: "Btrfs BTRFS" <linux-btrfs@vger.kernel.org>
> Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
> during the snapshot receive Ye
onment.
Thanks,
Xin
Sent: Friday, December 23, 2016 at 9:48 AM
From: b...@adria.it
To: "Xin Zhou" <xin.z...@gmx.com>
Cc: "Btrfs BTRFS" <linux-btrfs@vger.kernel.org>
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
during the snapshot r
ow many transfers are the scripts
> > running at a time to a specific hdd?
> >
> > Thanks,
> > Xin
> >
> >
> > Sent: Wednesday, December 21, 2016 at 1:11 PM
> > From: "Chris Murphy" <li...@colorremedies.com>
> > To: No recip
<li...@colorremedies.com>
> To: No recipient address
> Cc: "Giuseppe Della Bianca" <b...@adria.it>, "Xin Zhou" <xin.z...@gmx.com>,
> "Btrfs BTRFS" <linux-btrfs@vger.kernel.org> Subject: Re: [CORRUPTION
> FILESYSTEM] Corrupted and unre
Della Bianca" <b...@adria.it>, "Xin Zhou" <xin.z...@gmx.com>,
> "Btrfs BTRFS" <linux-btrfs@vger.kernel.org> Subject: Re: [CORRUPTION
> FILESYSTEM] Corrupted and unrecoverable file system during the snapshot
> receive
> On Wed, Dec
(synthetic resend)
I'll try to compile the kernel and mount with the config and option enabled.
I keep in mind the side effects of that option.
Thanks for all.
P.S. Sorry for my bad English.
Chris Murphy ha scritto:
> On Wed, Dec 21, 2016 at 2:09 PM, Chris Murphy
rremedies.com>
To: No recipient address
Cc: "Giuseppe Della Bianca" <b...@adria.it>, "Xin Zhou" <xin.z...@gmx.com>,
"Btrfs BTRFS" <linux-btrfs@vger.kernel.org>
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
during the sn
On Wed, Dec 21, 2016 at 2:09 PM, Chris Murphy wrote:
> What about CONFIG_BTRFS_FS_CHECK_INTEGRITY? And then using check_int
> mount option?
This slows things down, and in that case it might avoid the problem if
it's the result of a race condition.
--
Chris Murphy
--
To
What about CONFIG_BTRFS_FS_CHECK_INTEGRITY? And then using check_int
mount option?
Chris Murphy
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ds,
> Xin
> Â
> Â
>
> Sent:Â Monday, December 19, 2016 at 10:55 AM
> From:Â "Giuseppe Della Bianca" <b...@adria.it>
> To:Â "Xin Zhou" <xin.z...@gmx.com>
> Cc:Â linux-btrfs@vger.kernel.org
> Subject:Â Re: [CORRUPTION FILESYSTEM] Corrupted a
: Monday, December 19, 2016 at 10:55 AM
From: "Giuseppe Della Bianca" <b...@adria.it>
To: "Xin Zhou" <xin.z...@gmx.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
during the snapshot receive
a concrete ex
a concrete example
SNAPSHOT
/dev/nvme0n1p2 on /tmp/tmp.X3vU6dLLVI type btrfs
(rw,relatime,ssd,space_cache,subvolid=5,subvol=/)
btrfsManage SNAPSHOT /
(2016-12-19 19:44:00) Start btrfsManage
. . . Start managing SNAPSHOT ' / ' filesystem ' root ' snapshot
In ' btrfssnapshot ' latest source
(Resend)
Hi.
It is a bit complex.
Primary system
subvolume on SSD devices on PCIe slot
/root/ (fedora 23, 50GB usati)
/btrfssnapshot/
/btrfssnapshot/root/ (for /root/ snapshot)
/btrfssnapshot/root/root.1
/btrfssnapshot/root/root.2
/btrfssnapshot/root/root.XYZ
subvolume on device HDD "1"
>
>
> At 11/21/2016 08:09 PM, b...@adria.it wrote:
> > Hi.
> >
> > My system: Fedora 23, kernel-4.7.10-100.fc23.x86_64
> btrfs-progs-4.4.1-1.fc23.x86_64
> >
> > Testing the remote differential receive (via ssh and in local network) of
> 24
> > sequential snapshots, and simultaneously deleting
At 11/21/2016 08:09 PM, b...@adria.it wrote:
Hi.
My system: Fedora 23, kernel-4.7.10-100.fc23.x86_64
btrfs-progs-4.4.1-1.fc23.x86_64
Testing the remote differential receive (via ssh and in local network) of 24
sequential snapshots, and simultaneously deleting the snapshot, (in the same
file
inux-btrfs@vger.kernel.org
Subject: Re: [CORRUPTION FILESYSTEM] Corrupted and unrecoverable file system
during the snapshot receive
> Same problem, this time on a local subvolume.
>
> kernel-4.8.8-100.fc23.x86_64
>
> btrfs-progs v4.8.5
]zac[
I had three filesystem corruption.
T
> Chris Murphy Sun, 18 Dec 2016 12:12:42 -0800
> I'd say backup the volume conventionally to get important data
> secured. Then use btrfs check --repair to fix the problems with the
> file system, and then try the btrfs send receive again.
> It most certainly is a bug, but it's not clear to me
I'd say backup the volume conventionally to get important data
secured. Then use btrfs check --repair to fix the problems with the
file system, and then try the btrfs send receive again.
It most certainly is a bug, but it's not clear to me what the cause
is; other than the kernel isn't handling
> Same problem, this time on a local subvolume.
>
> kernel-4.8.8-100.fc23.x86_64
>
> btrfs-progs v4.8.5
]zac[
I had three filesystem corruption.
The point at which the problem it appeared, is similar in all three cases.
Subvolume structure and operations sequence:
btrfsreceive/
> I haven't seen this with 4.7.10. I suggest running 'btrfs check'
> (without repair) using a recent btrfs-progs. You can find 4.8.3 in
> koji, just download the appropriate rpm, and 'dnf update *rpm'
>
> As for kernel, Fedora 23 has 4.8.8 in updates (stable) and 4.8.10 is
> in updates-testing, I
I have reinstalled from scratch my system (for remote receiving of the
snapshot).
Now it uses the 4.8.8-100.fc23.x86_64 kernel, and now I have a separate
partition for '''possible dangerous''' test.
I do not remember the exact sequence that caused the corruption of the file
system, but now it
I haven't seen this with 4.7.10. I suggest running 'btrfs check'
(without repair) using a recent btrfs-progs. You can find 4.8.3 in
koji, just download the appropriate rpm, and 'dnf update *rpm'
As for kernel, Fedora 23 has 4.8.8 in updates (stable) and 4.8.10 is
in updates-testing, I suggest
from /var/log/messages
Nov 20 20:04:29 exnetold kernel: Modules linked in: fuse bridge ebtable_filter
ebtables tun 8021q bnx2fc cnic uio garp mrp fcoe stp llc libfcoe libfc
scsi_transport_fc nvidia_modeset(POE) nf_log_ipv4 nf_log_common xt_LOG
xt_limit xt_multiport ip6t_REJECT nf_reject_ipv6
Hi.
My system: Fedora 23, kernel-4.7.10-100.fc23.x86_64
btrfs-progs-4.4.1-1.fc23.x86_64
Testing the remote differential receive (via ssh and in local network) of 24
sequential snapshots, and simultaneously deleting the snapshot, (in the same
file system, but in a different subvolume), there has
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