Date: Thu, 28 Jan 2021 19:39:18 -0800 From: Pete Wright <pete@nomadlogic.org> To: Ed Maste <emaste@freebsd.org>, freebsd-x11@freebsd.org Subject: Re: i915 intel_frontbuffer_put panic, patch for review/testing Message-ID: <c2a6f4bc-db7f-cf32-7f2a-138569a925f8@nomadlogic.org> In-Reply-To: <CAPyFy2B-B9wvzCKYCz1LsCgM%2BSoSZzC_F5O0R0HiTgjzWb1bFQ@mail.gmail.com> References: <CAPyFy2B-B9wvzCKYCz1LsCgM%2BSoSZzC_F5O0R0HiTgjzWb1bFQ@mail.gmail.com>
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On 1/28/21 5:49 PM, Ed Maste wrote: > For the last few months I have been experiencing occasional panics > from intel_frontbuffer_put(), while running OBS-studio. An excerpt > from the backtrace: > > intel_frontbuffer_put() > intel_user_framebuffer_destroy() > _drm atomic_helper_plane_destroy_state() > drm_atomic_helper_plane_destroy_state() > drm_atomic_state_default_clear() > intel_atomic_state_clear() > __drm_atomic_state_free() > intel_atomic_cleanup_work() > linux_work_fn() > > I found a freedesktop.org bug report for an issue that looked > related[1]. Unfortunately the patch attached there does not apply to > Linux 5.4 corresponding to what we have in drm-kmod[2]. > > I've backported the patch and applied it against the 5.4-lts branch in > the drm-kmod repo, and the issue has not recurred. My patch is in a > pull request at [3], and available as a patch file at [4]. Review > and/or testing is very much appreciated. I would be happy to test on my laptop running 13, is there an easy way to download a branch and have it build using the ports infrastructure? I believe ports using github for distfiles expect a tag not branch. i can test out building it locally outside of the ports tree, but wanted to see if i could be lazy first :) -pete -- Pete Wright pete@nomadlogic.org @nomadlogicLA
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