Re: misc/021-image-multi-devices fails on latest btrfs-devel/misc-next

["Lakshmipathi.G" <lakshmipathi.g@gmail.com>]

Hi Qu,

I checked with David, Seems like his github/repo.or.cz repo has latest
dev patches
before pushing them into kernel.org repo.

--
With the help of 'git bisect', managed to debug this issue further.
With this patch[1]
applied we are running into this issue.

https://asciinema.org/a/OMLXpd69iHaej0Xfsrr2ihKiP

[1] btrfs: factor __btrfs_open_devices() to create btrfs_open_one_device()
https://github.com/kdave/btrfs-devel/commit/25908a59bb5c54f896c646ed3a1f73b2727ad9b5

----
Cheers,
Lakshmipathi.G
http://www.giis.co.in http://www.webminal.org


On Fri, Nov 24, 2017 at 5:35 PM, Lakshmipathi.G
<lakshmipathi.g@gmail.com> wrote:
>>>>
>>>> To make it clear, what kernel config and commit are you using when the
>>>> test fails?
>>>>
>>> When I use attached kernel config along with tar from misc-next branch
>>> (wget https://github.com/kdave/btrfs-devel/archive/misc-next.zip) this
>>> issue happens.
>>
>> BTW, David seems to update his branch more often in his git.kernel.org
>> branch than github.
>>
>> So it's possible that the branch from github is out dated.
>
> Okay, I didn't know that one, let me checkout his git.kernel.org branch and
> check the results there.
>
>>
>> For v4.14-rc7, even I enabled all the btrfs related configs, I still
>> can't reproduce it.
>> ------
>> $ zcat /proc/config.gz  | grep BTRFS
>> CONFIG_BTRFS_FS=m
>> CONFIG_BTRFS_FS_POSIX_ACL=y
>> CONFIG_BTRFS_FS_CHECK_INTEGRITY=y
>> CONFIG_BTRFS_FS_RUN_SANITY_TESTS=y
>> CONFIG_BTRFS_DEBUG=y
>> CONFIG_BTRFS_ASSERT=y
>> ------
>>
>> So there is something strange happened.
>>
>
> Yes. something strange going on. I use the same kernel config
> for misc-next, 4.14 and 4.14.2 - issue happens only with
> misc-next, as you mentioned it may not be up-to-date.
>
>
> ----
> Cheers,
> Lakshmipathi.G
> http://www.giis.co.in http://www.webminal.org