Hi!
> Booting a 5.11-rc2 kernel with lockdep enabled inside a virtualbox vm (which still
> emulates good old piix ATA controllers) I get the below lockdep splat early on during boot:
>
> This seems to be led-class related but also seems to have a (P)ATA
> part to it. To the best of my knowledge this is a new problem in
> 5.11 .
This is on my for-next branch:
commit 9a5ad5c5b2d25508996f10ee6b428d5df91d9160 (HEAD -> for-next, origin/for-next)
leds: trigger: fix potential deadlock with libata
We have the following potential deadlock condition:
========================================================
WARNING: possible irq lock inversion dependency detected
5.10.0-rc2+ #25 Not tainted
--------------------------------------------------------
swapper/3/0 just changed the state of lock:
ffff8880063bd618 (&host->lock){-...}-{2:2}, at: ata_bmdma_interrupt+0x27/0x200
but this lock took another, HARDIRQ-READ-unsafe lock in the past:
(&trig->leddev_list_lock){.+.?}-{2:2}
If I'm not mistaken, that should fix your issue.
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
Attachment:
signature.asc
Description: PGP signature
