On Sat, Mar 31, 2018 at 08:57:18AM +0200, Goffredo Baroncelli wrote:
> On 03/31/2018 07:03 AM, Zygo Blaxell wrote:
> >>> btrfs has no optimization like mdadm write-intent bitmaps; recovery
> >>> is always a full-device operation. In theory btrfs could track
> >>> modifications at the chunk level b
On 03/31/2018 09:43 AM, Zygo Blaxell wrote:
>> The key is that if a data write is interrupted, all the transaction
>> is interrupted and aborted. And due to the COW nature of btrfs, the
>> "old state" is restored at the next reboot.
> This is not presently true with raid56 and btrfs. RAID56 on bt
On Sat, Mar 31, 2018 at 11:36:50AM +0300, Andrei Borzenkov wrote:
> 31.03.2018 11:16, Goffredo Baroncelli пишет:
> > On 03/31/2018 09:43 AM, Zygo Blaxell wrote:
> >>> The key is that if a data write is interrupted, all the transaction
> >>> is interrupted and aborted. And due to the COW nature of b
This is perhaps a novelty problem report. And it's also a throw away
card data wise, and is a $12 Samsung EVO+ SDXC card used in an Intel
NUC.
Kernel is 4.15.14-300.fc27.x86_64
It contains FAT, ext4, and Btrfs file systems. They can all be fsck'd,
but none can be mounted. Even if it use blockdev
On Sat, Mar 31, 2018 at 3:50 PM, Chris Murphy wrote:
> This is perhaps a novelty problem report. And it's also a throw away
> card data wise, and is a $12 Samsung EVO+ SDXC card used in an Intel
> NUC.
>
> Kernel is 4.15.14-300.fc27.x86_64
>
> It contains FAT, ext4, and Btrfs file systems. They ca
On Sat, Mar 31, 2018 at 12:57 AM, Goffredo Baroncelli
wrote:
> On 03/31/2018 07:03 AM, Zygo Blaxell wrote:
btrfs has no optimization like mdadm write-intent bitmaps; recovery
is always a full-device operation. In theory btrfs could track
modifications at the chunk level but this is
On Sat, Mar 31, 2018 at 4:40 PM, Adam Borowski wrote:
> On Sat, Mar 31, 2018 at 03:50:03PM -0600, Chris Murphy wrote:
>> This is perhaps a novelty problem report. And it's also a throw away
>> card data wise, and is a $12 Samsung EVO+ SDXC card used in an Intel
>> NUC.
>>
>> It contains FAT, ext4,
On Mon, Nov 20, 2017 at 11:10 PM, Qu Wenruo wrote:
>
>
> On 2017年11月21日 13:58, Chris Murphy wrote:
>> On Mon, Nov 20, 2017 at 9:58 PM, Qu Wenruo wrote:
>>>
>>>
>>> On 2017年11月21日 12:49, Chris Murphy wrote:
On Mon, Nov 20, 2017 at 9:43 PM, Qu Wenruo wrote:
>
>
>>
>> Apply in
On Sat, Mar 31, 2018 at 04:34:58PM -0600, Chris Murphy wrote:
> On Sat, Mar 31, 2018 at 12:57 AM, Goffredo Baroncelli
> wrote:
> > On 03/31/2018 07:03 AM, Zygo Blaxell wrote:
> btrfs has no optimization like mdadm write-intent bitmaps; recovery
> is always a full-device operation. In th
