Re: Is there any plan for ZFS and timerfd updates on stable/14?

From: Jake Freeland <jake_at_technologyfriends.net>
Date: Sun, 03 Sep 2023 03:47:53 UTC
On Sat, Sep 2, 2023 at 10:40 PM Warner Losh <imp@bsdimp.com> wrote:

>
>
> On Sat, Sep 2, 2023, 9:36 PM Jake Freeland <jake@technologyfriends.net>
> wrote:
>
>> On Sat, Sep 2, 2023 at 10:31 PM Tomoaki AOKI <junchoon@dec.sakura.ne.jp>
>> wrote:
>>
>>> Hi.
>>>
>>> There are discussions about deadlocks issue of ZFS on freebsd-current
>>> ML, starting from [1] last month.
>>> IIRC, at least some fixes (candidates?) are merged to main, but not yet
>>> to stable/14.
>>>
>>> Upcoming (aleready released? or still rc3?) OpenZFS 2.2-release seems
>>> to have most of them. So my 1st question is "Is there any plan to
>>> import vendor/openzfs/zfs-2.2-release into stable/14 BEFORE BRANCHING
>>> releng/14?
>>>
>>> And one more. timerfd is added at last-minutes BEFORE stable/14 is
>>> branched, and already have not-yet-MFC'ed fixes [2], [3], [4] and
>>> Differential revision D41600 on Phablicator [5] related to memory leaks
>>> and locks.
>>> Additionally, splitting out lib32 part to proper place is proposed
>>> as D41640 [6].  Both [5] and [6] are accepted but not yet landed.
>>> Also, D41641 [7] proposes namespace pollution adjustments. This can be
>>> optional?
>>>
>>> Memory leaks and improper locks can lead system to security issues or
>>> deadlocks, so it would be benefical if landed and MFC'ed BEFORE
>>> releng/14 branches.
>>>
>>> Is there any plan to do so? At least, existing deadlocks should be
>>> considered as SHOW-STOPPER and resolved.
>>>
>>
>> The plan is to get all of those patches in before releng/14.0, I believe.
>>
>> What are your thoughts, Warner?
>>
>
> Sounds like the reviews are done or nearly so. I've not had time to look
> closely to be sure... I'd planned on making time Tuesday morning.
>

Yes. All reviews are good to go.

Jake Freeland


>
> Warner
>
>
>> Thanks,
>> Jake Freeland
>>
>>
>>>
>>> I myself am bitten by several deadlocks on poudriere full builds after
>>> upgrading base from stable/13 to stable/14, finally finished with
>>> increasing kern.maxvnodes after powercycle on each deadlock and
>>> continue.
>>>
>>>
>>> Thanks in advance!
>>>
>>> [1]
>>>
>>> https://lists.freebsd.org/archives/freebsd-current/2023-August/004162.html
>>>
>>> [2]
>>>
>>> https://cgit.freebsd.org/src/commit/?id=02f534b57f84d6f4f97c337b05b383c8b3aaf18c
>>>
>>> [3]
>>>
>>> https://cgit.freebsd.org/src/commit/?id=5eab523053db79b4bd4f926c7d7ac04444d9c1da
>>>
>>> [4]
>>>
>>> https://cgit.freebsd.org/src/commit/?id=f4296cfb409a48de00bfa60e76f686c2b031876f
>>>
>>> [5] https://reviews.freebsd.org/D41600
>>>
>>> [6] https://reviews.freebsd.org/D41640
>>>
>>> [7] https://reviews.freebsd.org/D41641
>>>
>>> --
>>> Tomoaki AOKI    <junchoon@dec.sakura.ne.jp>
>>>
>>>