* inconsistent output on sub list
@ 2013-01-22 19:42 Brendan Hide
2013-01-24 10:00 ` Anand Jain
2013-01-24 10:05 ` [PATCH] Btrfs-progs: we need to have the string null terminated Anand Jain
0 siblings, 2 replies; 4+ messages in thread
From: Brendan Hide @ 2013-01-22 19:42 UTC (permalink / raw)
To: linux-btrfs Mailing list
Linux watricky 3.6.11-1-ARCH #1 SMP PREEMPT Tue Dec 18 08:57:15 CET 2012
x86_64 GNU/Linux
In working on a snapshot maintenance script I've noticed some odd
behaviour. Note the smbshare path. I've put this into its own subvolume
as I don't plan on snapshotting it.
In the first command's output, this path is printed correctly, however
in the second output it has "4.snap" appended, similar to the names of
the snapshots I made 22 hours ago.
If this is a documented issue with a fix then no worries. But if not and
anyone wants me to check into any further specifics, please let me know.
> [root@watricky mnt]# btrfs subvolume list / -a
> ID 258 gen 4226 top level 384 path media/smbshare
> ID 259 gen 4337 top level 384 path home
> ID 384 gen 4321 top level 5 path <FS_TREE>/__active
> ID 392 gen 4337 top level 384 path var
> ID 393 gen 4267 top level 384 path usr
> ID 428 gen 4267 top level 5 path
<FS_TREE>/__snapshot/__active.20130121-23h44.snap
> ID 429 gen 3980 top level 5 path
<FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
> ID 430 gen 4043 top level 5 path
<FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
> ID 431 gen 4267 top level 5 path
<FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
> [root@watricky mnt]# btrfs subvolume list /home -a
> ID 258 gen 4226 top level 5 path <FS_TREE>/__active/media/smbshare4.snap
> ID 259 gen 4337 top level 5 path <FS_TREE>/__active/home
> ID 384 gen 4321 top level 5 path <FS_TREE>/__active
> ID 392 gen 4337 top level 5 path <FS_TREE>/__active/var
> ID 393 gen 4267 top level 5 path <FS_TREE>/__active/usr
> ID 428 gen 4267 top level 5 path
<FS_TREE>/__snapshot/__active.20130121-23h44.snap
> ID 429 gen 3980 top level 5 path
<FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
> ID 430 gen 4043 top level 5 path
<FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
> ID 431 gen 4267 top level 5 path
<FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
> [root@watricky mnt]#
Note that the only directly mounted share is __active, mounted at /.
--
__________
Brendan Hide
http://swiftspirit.co.za/
http://www.webafrica.co.za/?AFF1E97
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: inconsistent output on sub list
2013-01-22 19:42 inconsistent output on sub list Brendan Hide
@ 2013-01-24 10:00 ` Anand Jain
2013-01-25 13:28 ` Brendan Hide
2013-01-24 10:05 ` [PATCH] Btrfs-progs: we need to have the string null terminated Anand Jain
1 sibling, 1 reply; 4+ messages in thread
From: Anand Jain @ 2013-01-24 10:00 UTC (permalink / raw)
To: Brendan Hide; +Cc: linux-btrfs Mailing list
Brendan,
-------
>> [root@watricky mnt]# btrfs subvolume list / -a
>> ID 258 gen 4226 top level 384 path media/smbshare
::
>> [root@watricky mnt]# btrfs subvolume list /home -a
>> ID 258 gen 4226 top level 5 path
<FS_TREE>/__active/media/smbshare4.snap
-------
This is definitely a bug. Thanks for reporting.
I have made some fair-assumptions, and have sent out the
patch[1] to fix this bug (ref this email thread). Could you
kindly test it and report the result ?
[1]
[PATCH] Btrfs-progs: we need to have the string null terminated
Thanks, Anand
On 01/23/2013 03:42 AM, Brendan Hide wrote:
> Linux watricky 3.6.11-1-ARCH #1 SMP PREEMPT Tue Dec 18 08:57:15 CET 2012
> x86_64 GNU/Linux
>
> In working on a snapshot maintenance script I've noticed some odd
> behaviour. Note the smbshare path. I've put this into its own subvolume
> as I don't plan on snapshotting it.
>
> In the first command's output, this path is printed correctly, however
> in the second output it has "4.snap" appended, similar to the names of
> the snapshots I made 22 hours ago.
>
> If this is a documented issue with a fix then no worries. But if not and
> anyone wants me to check into any further specifics, please let me know.
>
> > [root@watricky mnt]# btrfs subvolume list / -a
> > ID 258 gen 4226 top level 384 path media/smbshare
> > ID 259 gen 4337 top level 384 path home
> > ID 384 gen 4321 top level 5 path <FS_TREE>/__active
> > ID 392 gen 4337 top level 384 path var
> > ID 393 gen 4267 top level 384 path usr
> > ID 428 gen 4267 top level 5 path
> <FS_TREE>/__snapshot/__active.20130121-23h44.snap
> > ID 429 gen 3980 top level 5 path
> <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
> > ID 430 gen 4043 top level 5 path
> <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
> > ID 431 gen 4267 top level 5 path
> <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
> > [root@watricky mnt]# btrfs subvolume list /home -a
> > ID 258 gen 4226 top level 5 path <FS_TREE>/__active/media/smbshare4.snap
> > ID 259 gen 4337 top level 5 path <FS_TREE>/__active/home
> > ID 384 gen 4321 top level 5 path <FS_TREE>/__active
> > ID 392 gen 4337 top level 5 path <FS_TREE>/__active/var
> > ID 393 gen 4267 top level 5 path <FS_TREE>/__active/usr
> > ID 428 gen 4267 top level 5 path
> <FS_TREE>/__snapshot/__active.20130121-23h44.snap
> > ID 429 gen 3980 top level 5 path
> <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
> > ID 430 gen 4043 top level 5 path
> <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
> > ID 431 gen 4267 top level 5 path
> <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
> > [root@watricky mnt]#
>
> Note that the only directly mounted share is __active, mounted at /.
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] Btrfs-progs: we need to have the string null terminated
2013-01-22 19:42 inconsistent output on sub list Brendan Hide
2013-01-24 10:00 ` Anand Jain
@ 2013-01-24 10:05 ` Anand Jain
1 sibling, 0 replies; 4+ messages in thread
From: Anand Jain @ 2013-01-24 10:05 UTC (permalink / raw)
To: linux-btrfs, brendan
Bug:
-------------
btrfs subvolume list / -a
ID 258 gen 4226 top level 384 path media/smbshare
::
btrfs subvolume list /home -a
ID 258 gen 4226 top level 5 path <FS_TREE>/__active/media/smbshare4.snap
In the first command's output, this path is printed correctly, however
in the second output it has "4.snap" appended, similar to the names of
the snapshots I made 22 hours ago.
------------
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reported-by: Brendan Hide <brendan@swiftspirit.co.za>
---
btrfs-list.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/btrfs-list.c b/btrfs-list.c
index e5f0f96..5acba78 100644
--- a/btrfs-list.c
+++ b/btrfs-list.c
@@ -633,6 +633,7 @@ static int resolve_root(struct root_lookup *rl, struct root_info *ri,
len = strlen(full_path);
tmp = malloc(len + add_len + 2);
memcpy(tmp + add_len + 1, full_path, len);
+ tmp[len + add_len + 1] = '\0';
tmp[add_len] = '/';
memcpy(tmp, p, add_len);
free(full_path);
--
1.8.1.227.g44fe835
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: inconsistent output on sub list
2013-01-24 10:00 ` Anand Jain
@ 2013-01-25 13:28 ` Brendan Hide
0 siblings, 0 replies; 4+ messages in thread
From: Brendan Hide @ 2013-01-25 13:28 UTC (permalink / raw)
To: Anand Jain; +Cc: linux-btrfs Mailing list
[-- Attachment #1: Type: text/plain, Size: 3441 bytes --]
Confirmed the fix is working.
^ TLDR can stop here :)
Recompiled the original Archlinux package from newly-synced ABS but also
with your patch. I then tested the newly-compiled btrfs with the patch.
I realised after I should have also tested immediately before installing
the patched version, so I reinstalled the original unpatched version for
the final test to confirm the problem was rectified entirely by the
one-line change. The attached log shows the detail.
On 24/01/13 12:00, Anand Jain wrote:
>
>
> Brendan,
>
> -------
> >> [root@watricky mnt]# btrfs subvolume list / -a
> >> ID 258 gen 4226 top level 384 path media/smbshare
> ::
> >> [root@watricky mnt]# btrfs subvolume list /home -a
> >> ID 258 gen 4226 top level 5 path
> <FS_TREE>/__active/media/smbshare4.snap
> -------
> This is definitely a bug. Thanks for reporting.
>
> I have made some fair-assumptions, and have sent out the
> patch[1] to fix this bug (ref this email thread). Could you
> kindly test it and report the result ?
>
> [1]
> [PATCH] Btrfs-progs: we need to have the string null terminated
>
> Thanks, Anand
>
>
> On 01/23/2013 03:42 AM, Brendan Hide wrote:
>> Linux watricky 3.6.11-1-ARCH #1 SMP PREEMPT Tue Dec 18 08:57:15 CET 2012
>> x86_64 GNU/Linux
>>
>> In working on a snapshot maintenance script I've noticed some odd
>> behaviour. Note the smbshare path. I've put this into its own subvolume
>> as I don't plan on snapshotting it.
>>
>> In the first command's output, this path is printed correctly, however
>> in the second output it has "4.snap" appended, similar to the names of
>> the snapshots I made 22 hours ago.
>>
>> If this is a documented issue with a fix then no worries. But if not and
>> anyone wants me to check into any further specifics, please let me know.
>>
>> > [root@watricky mnt]# btrfs subvolume list / -a
>> > ID 258 gen 4226 top level 384 path media/smbshare
>> > ID 259 gen 4337 top level 384 path home
>> > ID 384 gen 4321 top level 5 path <FS_TREE>/__active
>> > ID 392 gen 4337 top level 384 path var
>> > ID 393 gen 4267 top level 384 path usr
>> > ID 428 gen 4267 top level 5 path
>> <FS_TREE>/__snapshot/__active.20130121-23h44.snap
>> > ID 429 gen 3980 top level 5 path
>> <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
>> > ID 430 gen 4043 top level 5 path
>> <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
>> > ID 431 gen 4267 top level 5 path
>> <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
>> > [root@watricky mnt]# btrfs subvolume list /home -a
>> > ID 258 gen 4226 top level 5 path
>> <FS_TREE>/__active/media/smbshare4.snap
>> > ID 259 gen 4337 top level 5 path <FS_TREE>/__active/home
>> > ID 384 gen 4321 top level 5 path <FS_TREE>/__active
>> > ID 392 gen 4337 top level 5 path <FS_TREE>/__active/var
>> > ID 393 gen 4267 top level 5 path <FS_TREE>/__active/usr
>> > ID 428 gen 4267 top level 5 path
>> <FS_TREE>/__snapshot/__active.20130121-23h44.snap
>> > ID 429 gen 3980 top level 5 path
>> <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
>> > ID 430 gen 4043 top level 5 path
>> <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
>> > ID 431 gen 4267 top level 5 path
>> <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
>> > [root@watricky mnt]#
>>
>> Note that the only directly mounted share is __active, mounted at /.
>>
--
__________
Brendan Hide
http://swiftspirit.co.za/
http://www.webafrica.co.za/?AFF1E97
[-- Attachment #2: null-string.patched.log --]
[-- Type: text/x-log, Size: 6711 bytes --]
[ brendan@watricky.invalid.co.za : 15:03:10 : ~/build/btrfs-progs ]
:) sudo pacman -U btrfs-progs-0.19.20121005-4-x86_64.pkg.tar.xz
[sudo] password for brendan:
loading packages...
warning: btrfs-progs-0.19.20121005-4 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...
Targets (1): btrfs-progs-0.19.20121005-4
Total Installed Size: 2.43 MiB
Net Upgrade Size: -0.04 MiB
Proceed with installation? [Y/n]
(1/1) checking package integrity [###################################################################] 100%
(1/1) loading package files [###################################################################] 100%
(1/1) checking for file conflicts [###################################################################] 100%
(1/1) checking available disk space [###################################################################] 100%
(1/1) upgrading btrfs-progs [###################################################################] 100%
[ brendan@watricky.invalid.co.za : 15:03:33 : ~/build/btrfs-progs ]
:) sudo su -
[root@watricky ~]# btrfs subvolume list / -a
ID 258 gen 5034 top level 384 path media/smbshare
ID 259 gen 5161 top level 384 path home
ID 384 gen 5161 top level 5 path <FS_TREE>/__active
ID 392 gen 5161 top level 384 path var
ID 393 gen 5161 top level 384 path usr
ID 428 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130121-23h44.snap
ID 429 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
ID 430 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
ID 431 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
ID 550 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130125-13h38.snap
ID 552 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130125-13h38.snap
ID 553 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130125-13h38.snap
ID 555 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130125-13h39.snap
[root@watricky ~]# btrfs subvolume list /home -a
ID 258 gen 5034 top level 5 path <FS_TREE>/__active/media/smbshare
ID 259 gen 5161 top level 5 path <FS_TREE>/__active/home
ID 384 gen 5161 top level 5 path <FS_TREE>/__active
ID 392 gen 5161 top level 5 path <FS_TREE>/__active/var
ID 393 gen 5161 top level 5 path <FS_TREE>/__active/usr
ID 428 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130121-23h44.snap
ID 429 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
ID 430 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
ID 431 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
ID 550 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130125-13h38.snap
ID 552 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130125-13h38.snap
ID 553 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130125-13h38.snap
ID 555 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130125-13h39.snap
[root@watricky ~]# pacman -S btrfs-progs
warning: btrfs-progs-0.19.20121005-4 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...
Targets (1): btrfs-progs-0.19.20121005-4
Total Installed Size: 2.47 MiB
Net Upgrade Size: 0.04 MiB
Proceed with installation? [Y/n]
(1/1) checking package integrity [###################################################################] 100%
(1/1) loading package files [###################################################################] 100%
(1/1) checking for file conflicts [###################################################################] 100%
(1/1) checking available disk space [###################################################################] 100%
(1/1) upgrading btrfs-progs [###################################################################] 100%
[root@watricky ~]# btrfs subvolume list / -a
ID 258 gen 5034 top level 384 path media/smbshare
ID 259 gen 5162 top level 384 path home
ID 384 gen 5161 top level 5 path <FS_TREE>/__active
ID 392 gen 5162 top level 384 path var
ID 393 gen 5161 top level 384 path usr
ID 428 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130121-23h44.snap
ID 429 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
ID 430 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
ID 431 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
ID 550 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130125-13h38.snap
ID 552 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130125-13h38.snap
ID 553 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130125-13h38.snap
ID 555 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130125-13h39.snap
[root@watricky ~]#
[root@watricky ~]# btrfs subvolume list /home -a
ID 258 gen 5034 top level 5 path <FS_TREE>/__active/media/smbshare4.snap
ID 259 gen 5162 top level 5 path <FS_TREE>/__active/home
ID 384 gen 5161 top level 5 path <FS_TREE>/__active
ID 392 gen 5162 top level 5 path <FS_TREE>/__active/var
ID 393 gen 5161 top level 5 path <FS_TREE>/__active/usr
ID 428 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130121-23h44.snap
ID 429 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130121-23h45.snap
ID 430 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130121-23h45.snap
ID 431 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130121-23h45.snap
ID 550 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active_home.20130125-13h38.snap
ID 552 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_var.20130125-13h38.snap
ID 553 gen 5034 top level 5 path <FS_TREE>/__snapshot/__active_usr.20130125-13h38.snap
ID 555 gen 5043 top level 5 path <FS_TREE>/__snapshot/__active.20130125-13h39.snap
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-01-25 13:30 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-01-22 19:42 inconsistent output on sub list Brendan Hide
2013-01-24 10:00 ` Anand Jain
2013-01-25 13:28 ` Brendan Hide
2013-01-24 10:05 ` [PATCH] Btrfs-progs: we need to have the string null terminated Anand Jain
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.