Re: PROBLEM: repeatable lockup on RAID-6 with LUKS dm-crypt on NVMe devices when rsyncing many files

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

> On 6. Nov 2024, at 07:35, Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:
> 
> Hi,
> 
> 在 2024/11/05 18:15, Christian Theune 写道:
>> Hi,
>> after about 2 hours it stalled again. Here’s the full blocked process dump. (Tell me if this isn’t helpful, otherwise I’ll keep posting that as it’s the only real data I can show)
> 
> This is bad news :(

Yeah. But: the good new is that we aren’t eating any data so far … ;)

> While reviewing related code, I come up with a plan to move bitmap
> start/end write ops to the upper layer. Make sure each write IO from
> upper layer only start once and end once, this is easy to make sure
> they are balanced and can avoid many calls to improve performance as
> well.

Sounds like a plan!

> However, I need a few days to cooke a patch after work.

Sure thing! I’ll switch off bitmaps for that time - I’m happy we found a workaround so we can take time to resolve it cleanly. :)

Thanks a lot for your help!
Christian

-- 
Christian Theune · ct@xxxxxxxxxxxxxxx · +49 345 219401 0
Flying Circus Internet Operations GmbH · https://flyingcircus.io
Leipziger Str. 70/71 · 06108 Halle (Saale) · Deutschland
HR Stendal HRB 21169 · Geschäftsführer: Christian Theune, Christian Zagrodnick






[Index of Archives]     [DM Crypt]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite Discussion]     [KDE Users]     [Fedora Docs]

  Powered by Linux