Hi,
在 2023/08/29 4:32, Dragan Stancevic 写道:
Just a followup on 6.1 testing. I tried reproducing this problem for 5
days with 6.1.42 kernel without your patches and I was not able to
reproduce it.
It seems that 6.1 has some other code that prevents this from happening.
I see that there are lots of patches for raid456 between 5.10 and 6.1,
however, I remember that I used to reporduce the deadlock after 6.1, and
it's true it's not easy to reporduce, see below:
https://lore.kernel.org/linux-raid/e9067438-d713-f5f3-0d3d-9e6b0e9efa0e@xxxxxxxxxxxxxxx/
My guess is that 6.1 is harder to reporduce than 5.10 due to some
changes inside raid456.
By the way, raid10 had a similiar deadlock, and can be fixed the same
way, so it make sense to backport these patches.
https://lore.kernel.org/r/20230529132037.2124527-5-yukuai1@xxxxxxxxxxxxxxx
Thanks,
Kuai
On 5.10 I can reproduce it within minutes to an hour.
