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