On 12/1/18 1:19 AM, Qu Wenruo wrote:
>
>
> On 2018/12/1 上午12:52, Josef Bacik wrote:
>> From: Josef Bacik
>>
>> When debugging some weird extent reference bug I suspected that we were
>> changing a snapshot while we were deleting it, which could explain my
>> bug.
>
> May I ask under which case
On 2018/12/1 上午12:52, Josef Bacik wrote:
> From: Josef Bacik
>
> When debugging some weird extent reference bug I suspected that we were
> changing a snapshot while we were deleting it, which could explain my
> bug.
May I ask under which case we're going to modify an unlinked snapshot?
Maybe
On 2018/11/30 下午9:53, Patrick Dijkgraaf wrote:
> Hi all,
>
> I have been a happy BTRFS user for quite some time. But now I'm facing
> a potential ~45TB dataloss... :-(
> I hope someone can help!
>
> I have Server A and Server B. Both having a 20-devices BTRFS RAID6
> filesystem. Because of
On Fri, Nov 30, 2018 at 5:12 PM Filipe Manana wrote:
>
> On Fri, Nov 30, 2018 at 4:53 PM Josef Bacik wrote:
> >
> > From: Josef Bacik
> >
> > With my delayed refs patches in place we started seeing a large amount
> > of aborts in __btrfs_free_extent
> >
> > BTRFS error (device sdb1): unable to
On Fri, Nov 30, 2018 at 05:14:54PM +, Filipe Manana wrote:
> On Fri, Nov 30, 2018 at 4:53 PM Josef Bacik wrote:
> >
> > From: Josef Bacik
> >
> > When debugging some weird extent reference bug I suspected that we were
> > changing a snapshot while we were deleting it, which could explain my
On Fri, Nov 30, 2018 at 4:53 PM Josef Bacik wrote:
>
> From: Josef Bacik
>
> When debugging some weird extent reference bug I suspected that we were
> changing a snapshot while we were deleting it, which could explain my
> bug. This was indeed what was happening, and this patch helped me
>
On Fri, Nov 30, 2018 at 4:53 PM Josef Bacik wrote:
>
> From: Josef Bacik
>
> With my delayed refs patches in place we started seeing a large amount
> of aborts in __btrfs_free_extent
>
> BTRFS error (device sdb1): unable to find ref byte nr 91947008 parent 0 root
> 35964 owner 1 offset 0
>
With more machines running my recent delayed ref rsv patches we started seeing a
spike in boxes aborting in __btrfs_free_extent with being unable to find the
extent ref. The full details are in 2/2, but the summary is there's been a bug
ever since the original delayed inode item stuff was
From: Josef Bacik
When debugging some weird extent reference bug I suspected that we were
changing a snapshot while we were deleting it, which could explain my
bug. This was indeed what was happening, and this patch helped me
verify my theory. It is never correct to modify the snapshot once
From: Josef Bacik
With my delayed refs patches in place we started seeing a large amount
of aborts in __btrfs_free_extent
BTRFS error (device sdb1): unable to find ref byte nr 91947008 parent 0 root
35964 owner 1 offset 0
Call Trace:
? btrfs_merge_delayed_refs+0xaf/0x340
On 30.11.18 г. 17:22 ч., Chris Mason wrote:
> On 29 Nov 2018, at 12:37, Nikolay Borisov wrote:
>
>> On 29.11.18 г. 18:43 ч., Jean Fobe wrote:
>>> Hi all,
>>> I've been studying LZ4 and other compression algorithms on the
>>> kernel, and seen other projects such as zram and ubifs using the
On 29 Nov 2018, at 12:37, Nikolay Borisov wrote:
> On 29.11.18 г. 18:43 ч., Jean Fobe wrote:
>> Hi all,
>> I've been studying LZ4 and other compression algorithms on the
>> kernel, and seen other projects such as zram and ubifs using the
>> crypto api. Is there a technical reason for not
Hi all,
I have been a happy BTRFS user for quite some time. But now I'm facing
a potential ~45TB dataloss... :-(
I hope someone can help!
I have Server A and Server B. Both having a 20-devices BTRFS RAID6
filesystem. Because of known RAID5/6 risks, Server B was a backup of
Server A.
After
This patch adds cli
btrfs device forget [dev]
to remove the given device structure in the kernel if the device
is unmounted. If no argument is given it shall remove all stale
(device which are not mounted) from the kernel.
Signed-off-by: Anand Jain
Reviewed-by: Nikolay Borisov
---
v11->v12:
[I will send this the xfstest ML after kernel and progs patch
has been integrated].
btrfs reload was introduced to cleanup the device list inside the btrfs
kernel module.
The problem with the reload approach is that you can't run btrfs test
cases 124,125, 154 and 164 on the system with btrfs as
v12:
Fixed coding style - leave space between " : ".
v11:
btrfs-progs: Bring the code into the else part of if(forget).
Use strerror to print the erorr instead of ret.
v10:
Make btrfs-progs changes more readable.
With an effort to keep the known bug [1] as it is..
[1]
The
[I will send this the xfstest ML after kernel and progs patch
has been integrated].
btrfs reload was introduced to cleanup the device list inside the btrfs
kernel module.
The problem with the reload approach is that you can't run btrfs test
cases 124,125, 154 and 164 on the system with btrfs as
Support for a new command 'btrfs dev forget [dev]' is proposed here
to undo the effects of 'btrfs dev scan [dev]'. For this purpose
this patch proposes to use ioctl #5 as it was empty.
IOW(BTRFS_IOCTL_MAGIC, 5, ..)
This patch adds new ioctl BTRFS_IOC_FORGET_DEV which can be sent from
the
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