[Bug 261166] LinuxKPI kernel panics: mi _switch: switch in a critical section – 14. 0-CURRENT main-n252381-75d20a5e386 (2022-01-1 1)
Date: Wed, 19 Jan 2022 07:12:17 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261166 --- Comment #13 from Graham Perrin <grahamperrin@gmail.com> --- Another commit in branch main references this bug: <https://github.com/freebsd/freebsd-src/commit/02ea6033020e11afec6472bf560b0ddebd0fa97a> <https://cgit.freebsd.org/src/commit/?id=02ea6033020e11afec6472bf560b0ddebd0fa97a> author Vladimir Kondratyev <wulf@𡀦…> 2022-01-18 20:14:12 +0000 committer Vladimir Kondratyev <wulf@…> 2022-01-18 20:14:12 +0000 commit 02ea6033020e11afec6472bf560b0ddebd0fa97a LinuxKPI: Allow spin_lock_irqsave to be called within a critical section with spinning on spin_trylock. dma-buf part of drm-kmod depends on this property and absence of it support results in "mi_switch: switch in a critical section" assertions [1][2]. [1] https://github.com/freebsd/drm-kmod/issues/116 [2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261166 MFC after: 1 week Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D33887 -- You are receiving this mail because: You are the assignee for the bug.