Re: [GIT PULL] Block updates for 6.9-rc1

Jens Axboe
2024-03-12T01:37:09Z

On 3/11/24 7:28 PM, Linus Torvalds wrote:
> On Mon, 11 Mar 2024 at 18:23, Jens Axboe <axboe@kernel.dk> wrote:
>>
>>> What odd hardware are people running?
>>
>> Maybe older SATA based flash? But I haven't seen any of those in years.
>> Or, god forbid, rotational storage?
>
> Christ. I haven't touched rotating rust in like twenty years by now.
>
> I feel dirty just thinking about it.
>
>> Out of curiosity, on your box where it broken, what does:
>>
>> grep . /sys/block/nvme0n1/queue/*
>>
>> say?
>
> Appended.
>
> FWIW, it's a 4TB Samsung 990 PRO (and not in a laptop, this is my
> Threadripper).

Summary is that this is obviously a pretty normal drive, and has the
128K transfer limit that's common there. So doesn't really explain
anything in that regard. The segment size is also a bit odd at 33. The
only samsung I have here is a 980 pro, which has a normal 512K limit and
128 segments.

Oh well, we'll figure out what the hell went wrong, side channels are
ongoing.

--
Jens Axboe