Date: Mon, 13 Feb 2023 18:34:56 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268835 --- Comment #4 from Mark Millard <email@example.com> --- (In reply to Mitchell Horne from comment #3) There is a history of my messages to the lists about the problem, going back into 2022-Apr, mostly freebsd-arm for the problem and, more recently, freebsd-hackers asking for help in solving the problem. (No replies.) From knowing crash details published in in 2022-Apr to knowing the fix here took me something like 8 months of trying to figure it out. The 2022-Apr freebsd-arm messages are somewhat messy as I explored firmware versions and made operator errors. Crash here means the attempt to dereference a small offset from a NULL pointer. https://lists.freebsd.org/archives/freebsd-arm/2022-April/001274.html has the original report with many console logs with backtraces, various firmware versions being tested. (Later messages for a while repeated this material.) https://lists.freebsd.org/archives/freebsd-arm/2022-April/001278.html is where I first showed the failing behavior at the source code level and the related (textual form of) DTB content for what was different between older firmware that did not lead to a crash vs. newer firmware that did. The message sequence also has material about other issues as I isolated things. (Part of the messy status.) Also a false report from accidentally deleting a file without noticing at the time --followed later by message(s) about that mistake. There is nothing to show for how I figured out the change. With what I'd gradually partially understood, a message about some other fix that I read turned out to be somewhat related in how it fixed something (not at all specific to RPi*'s). It lead to me the technique and that it applied to Device Tree (fdt) contexts for having resources ready in time. So: Found by analogy to something else that I saw. My first try was too early and produced messages about that. I then figured out the BUS_PASS_INTERRUPT dependency and and that BUS_PASS_ORDER_LATE was no longer too early. -- You are receiving this mail because: You are the assignee for the bug.