Date: Tue, 13 Oct 2020 05:57:03 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 250248] 12.2-RC2 kernel reboots with hw.acpi.debug=1 after a warm reboot. Message-ID: <bug-250248-227-Je3P0N0GlU@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-250248-227@https.bugs.freebsd.org/bugzilla/> References: <bug-250248-227@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250248 --- Comment #6 from Andriy Gapon <avg@FreeBSD.org> --- (In reply to Rajeev Pillai from comment #5) If you can some (light) code modifications and can build a kernel from sour= ces, then I can try to "throw" a couple of ideas at you. First, in hdac_attach2(), you can try moving a block of code that starts wi= th printing of "Enabling controller interrupt" and goes up to "Scanning HDA codecs" to a place right after the loop that scans for codecs. But I am not sure if that will really work. There are calls to hdac_send_command() in the loop. I am not sure if that function depends on interrupts. Another idea is to move just HDAC_WRITE_4(... HDAC_GCTL_UNSOL) line. Yet another idea is to modify hdac_methods[] array and add device_shutdown method there. It can point to hdac_detach. The idea is to completely reset the hardware _before_ the warm reboot, so i= t is more predictable afterwards. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-250248-227-Je3P0N0GlU>