Date: Mon, 10 Jan 2022 18:05:13 +0000 From: bugzilla-noreply@freebsd.org To: amd64@FreeBSD.org Subject: [Bug 209821] UEFI - installation media hangs when booting on ASUS P6P67 DELUXE Message-ID: <bug-209821-17361-3XFcXwqCBZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209821-17361@https.bugs.freebsd.org/bugzilla/> References: <bug-209821-17361@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209821 --- Comment #77 from David Sebek <dasebek@gmail.com> --- (In reply to Dani from comment #76) Hello Dani, The patch doesn't address all scenarios that may result in a system freeze.= The proper fix is in 13.0-STABLE and 14.0-CURRENT. See comment #66 for a short explanation. There is one thing that came to my mind after seeing your results. I rememb= er that when I was debugging the problem, I created a KVM virtual machine with multiple serial consoles connected to it. I found that: - The boot loader uses the existing UEFI frame buffer to print all its outp= ut until the "EFI framebuffer information" ending with the "masks ..." line. T= his information was printed to all serial consoles. - The boot loader then gives control over to the kernel, which uses its own serial console configuration. It uses COM1 by default for the serial consol= e. The kernel's serial console output was therefore printed only to COM1. In the case of my virtual machine, all information until the "EFI framebuff= er information" block was printed to all serial consoles, and the kernel output that followed was printed only to COM1. Consoles other than COM1 didn't adv= ance past the "EFI framebuffer information", even though the system was running. In your case, is the video/serial output properly set in the boot loader wh= en you boot the system? It may be possible that the kernel prints the output t= o a wrong serial console or stops booting because it could not detect a serial console on COM1? Did you try FreeBSD 13-STABLE to see if it boots? --=20 You are receiving this mail because: You are on the CC list for the bug.=
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