Re: Regression in Linux 5.5.0-rc[1-5]: btrfs send/receive out of memory

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On 2020-01-28 10:02, Filipe Manana wrote:
On Tue, Jan 28, 2020 at 2:46 PM Craig Andrews <candrews@xxxxxxxxxxxxxxxx> wrote:

On 2020-01-27 08:44, Filipe Manana wrote:
> On Sat, Jan 25, 2020 at 11:18 AM Stéphane Lesimple
> <stephane_btrfs2@xxxxxxxxxxx> wrote:
>>
>> > ERROR: failed to clone extents to var/amavis/db/__db.001: Invalid argument
>>
>> If I may add another data point here, I'm also encountering this issue
>> on a 5.5.0-rc6, with the btrfs-rc7 patches applied to it (so as far as
>> btrfs is concerned, this is an rc7).
>>
>> On the first time, it happened after sending ~90 Gb worth of data, and
>> aborted (as I didn't specify the -E option to btrfs send). Then, I
>> retried with btrfs send -E 0, and it encountered the exact same error
>> on the same file.
>>
>> # btrfs send -v /tank/backups/.snaps/incoming/sendme/ | pv
>> 2>/dev/pts/23 | btrfs rec -E 0 /newfs/
>> At subvol /tank/backups/.snaps/incoming/sendme/
>> At subvol sendme
>> ERROR: failed to clone extents to
>> retroarch/x86_64/cores/mednafen_saturn_libretro.dll: Invalid argument
>> ERROR: failed to clone extents to
>> retroarch/x86_64/cores/mednafen_saturn_libretro.dll: Invalid argument
>
> This is probably the same case for which I sent a fix last week:
>
> https://patchwork.kernel.org/patch/11350129/
>
> Thanks.

I applied that patch to 5.5.0-rc7 and that solved the problem. I can now
do backups (which is a send/receive) successfully.

>
>>
>> The send/receive is still going on for now, currently around the ~200
>> Gb mark.
>>
>> Bees is running on this FS (but I stopped it before doing the
>> send/receive).
>>
>> I can test patches if needed.
>>
>> --
>> Stéphane.

The patch appears to have fixed my problems - thank you!

Great!

Can you reply to the patch's thread with a:

Tested-by: Your Name <email@xxxxxxx>

?

Or I can reply to it myself with that if you agree.

Thanks!

~Craig


Can you please send the reply?
Tested-by: Craig Andrews <candrews@xxxxxxxxxxxxxxxx>

And again, thank you!
~Craig

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