Re: port-amd64/60405: UEFI boot hangs with blank screen

To: port-amd64-maintainer%netbsd.org@localhost,gnats-admin%netbsd.org@localhost,netbsd-bugs%netbsd.org@localhost,martin%NetBSD.org@localhost
Subject: Re: port-amd64/60405: UEFI boot hangs with blank screen
From: "Martin Husemann via gnats" <gnats-admin%NetBSD.org@localhost>
Date: Mon, 6 Jul 2026 08:00:02 +0000 (UTC)
The following reply was made to PR port-amd64/60405; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: port-amd64/60405: UEFI boot hangs with blank screen
Date: Mon, 6 Jul 2026 09:59:07 +0200

 On Sun, Jul 05, 2026 at 10:30:02PM +0000, RVP via gnats wrote:
 >  Yes, that looks OK. Can you show the detailed map (`memmap`) as well? Just the
 >  1st page alone should be sufficient.
 
 > memmap
 Type                    Start             End               Attributes      
 ----------------------  ----------------  ----------------  ----------------
 Boot Services Code      0000000000000000  0000000000007fff  000000000000000f
 Conventional Memory     0000000000008000  0000000000047fff  000000000000000f
 Boot Services Data      0000000000048000  0000000000058fff  000000000000000f
 Conventional Memory     0000000000059000  000000000005efff  000000000000000f
 Boot Services Data      000000000005f000  000000000005ffff  000000000000000f
 Boot Services Code      0000000000060000  000000000009efff  000000000000000f
 Runtime Services Data   000000000009f000  000000000009ffff  800000000000000f
 Conventional Memory     0000000000100000  0000000000efbfff  000000000000000f
 Loader Data             0000000000efc000  00000000010fffff  000000000000000f
 Boot Services Data      0000000001100000  00000000015d2fff  000000000000000f
 Boot Services Code      00000000015d3000  00000000015d3fff  000000000000000f
 Boot Services Data      00000000015d4000  00000000015fafff  000000000000000f
 Boot Services Code      00000000015fb000  00000000015fbfff  000000000000000f
 Boot Services Data      00000000015fc000  0000000001656fff  000000000000000f
 Boot Services Code      0000000001657000  000000000165afff  000000000000000f
 Boot Services Data      000000000165b000  000000000165cfff  000000000000000f
 Boot Services Code      000000000165d000  000000000165efff  000000000000000f
 Boot Services Data      000000000165f000  000000000165ffff  000000000000000f
 Boot Services Code      0000000001660000  000000000166cfff  000000000000000f
 Boot Services Data      000000000166d000  0000000001a6ffff  000000000000000f
 Boot Services Code      0000000001a70000  0000000001a70fff  000000000000000f
 Boot Services Data      0000000001a71000  0000000001a77fff  000000000000000f
 Boot Services Code      0000000001a78000  0000000001a78fff  000000000000000f
 Boot Services Data      0000000001a79000  0000000001a7dfff  000000000000000f
 Boot Services Code      0000000001a7e000  0000000001a7efff  000000000000000f
 Boot Services Data      0000000001a7f000  0000000001a7ffff  000000000000000f
 Boot Services Code      0000000001a80000  0000000001a80fff  000000000000000f
 Press Any Key to continue :
 Boot Services Data      0000000001a81000  0000000001a89fff  000000000000000f
 Boot Services Code      0000000001a8a000  0000000001a8afff  000000000000000f
 Boot Services Data      0000000001a8b000  0000000001a8efff  000000000000000f
 Boot Services Code      0000000001a8f000  0000000001a94fff  000000000000000f
 Boot Services Data      0000000001a95000  0000000001a98fff  000000000000000f
 Boot Services Code      0000000001a99000  0000000001a9afff  000000000000000f
 Boot Services Data      0000000001a9b000  0000000001aa0fff  000000000000000f
 Boot Services Code      0000000001aa1000  0000000001aa3fff  000000000000000f
 Boot Services Data      0000000001aa4000  0000000001aaafff  000000000000000f
 Boot Services Code      0000000001aab000  0000000001aacfff  000000000000000f
 Boot Services Data      0000000001aad000  0000000001aaefff  000000000000000f
 Boot Services Code      0000000001aaf000  0000000001ab1fff  000000000000000f
 Boot Services Data      0000000001ab2000  0000000001ab4fff  000000000000000f
 Boot Services Code      0000000001ab5000  0000000001ab8fff  000000000000000f
 Boot Services Data      0000000001ab9000  0000000001ac4fff  000000000000000f
 Boot Services Code      0000000001ac5000  0000000001ac8fff  000000000000000f
 Boot Services Data      0000000001ac9000  0000000001ad5fff  000000000000000f
 Boot Services Code      0000000001ad6000  0000000001ad9fff  000000000000000f
 Boot Services Data      0000000001ada000  0000000001adefff  000000000000000f
 Boot Services Code      0000000001adf000  0000000001adffff  000000000000000f
 Boot Services Data      0000000001ae0000  0000000001b00fff  000000000000000f
 Boot Services Code      0000000001b01000  0000000001b01fff  000000000000000f
 Boot Services Data      0000000001b02000  0000000001b0dfff  000000000000000f
 Boot Services Code      0000000001b0e000  0000000001b11fff  000000000000000f
 Boot Services Data      0000000001b12000  0000000001b29fff  000000000000000f
 Boot Services Code      0000000001b2a000  0000000001b33fff  000000000000000f
 Boot Services Data      0000000001b34000  0000000001b42fff  000000000000000f
 Boot Services Code      0000000001b43000  0000000001b45fff  000000000000000f
 Boot Services Data      0000000001b46000  0000000001b47fff  000000000000000f
 Press Any Key to continue :
 Boot Services Code      0000000001b48000  0000000001b49fff  000000000000000f
 Boot Services Data      0000000001b4a000  0000000001f5ffff  000000000000000f
 Boot Services Code      0000000001f60000  0000000001f60fff  000000000000000f
 Boot Services Data      0000000001f61000  0000000001f61fff  000000000000000f
 Boot Services Code      0000000001f62000  0000000001f63fff  000000000000000f
 Boot Services Data      0000000001f64000  0000000001f64fff  000000000000000f
 Boot Services Code      0000000001f65000  0000000001f69fff  000000000000000f
 Boot Services Data      0000000001f6a000  0000000001f6bfff  000000000000000f
 Boot Services Code      0000000001f6c000  0000000001f6cfff  000000000000000f
 Boot Services Data      0000000001f6d000  0000000001f71fff  000000000000000f
 Boot Services Code      0000000001f72000  0000000001f75fff  000000000000000f
 Boot Services Data      0000000001f76000  0000000001f76fff  000000000000000f
 Boot Services Code      0000000001f77000  0000000001f7bfff  000000000000000f
 Boot Services Data      0000000001f7c000  0000000001f87fff  000000000000000f
 Boot Services Code      0000000001f88000  0000000001f8dfff  000000000000000f
 Boot Services Data      0000000001f8e000  0000000001f8ffff  000000000000000f
 Boot Services Code      0000000001f90000  0000000001f90fff  000000000000000f
 Boot Services Data      0000000001f91000  0000000001f91fff  000000000000000f
 Boot Services Code      0000000001f92000  0000000001f93fff  000000000000000f
 Boot Services Data      0000000001f94000  0000000001f95fff  000000000000000f
 Boot Services Code      0000000001f96000  0000000001f96fff  000000000000000f
 Boot Services Data      0000000001f97000  0000000001f9bfff  000000000000000f
 Boot Services Code      0000000001f9c000  0000000001f9dfff  000000000000000f
 Boot Services Data      0000000001f9e000  0000000001fa2fff  000000000000000f
 Boot Services Code      0000000001fa3000  0000000001fa3fff  000000000000000f
 Boot Services Data      0000000001fa4000  0000000001fbffff  000000000000000f
 Boot Services Code      0000000001fc0000  0000000001fc1fff  000000000000000f
 Boot Services Data      0000000001fc2000  0000000001fc3fff  000000000000000f
 Boot Services Code      0000000001fc4000  0000000001fcefff  000000000000000f
 Press Any Key to continue :
 Boot Services Data      0000000001fcf000  0000000001fdbfff  000000000000000f
 Boot Services Code      0000000001fdc000  0000000001fe0fff  000000000000000f
 Boot Services Data      0000000001fe1000  0000000001fe5fff  000000000000000f
 Boot Services Code      0000000001fe6000  0000000001feafff  000000000000000f
 Boot Services Data      0000000001feb000  0000000001ff0fff  000000000000000f
 Boot Services Code      0000000001ff1000  0000000001ff3fff  000000000000000f
 Boot Services Data      0000000001ff4000  0000000001ffbfff  000000000000000f
 Boot Services Code      0000000001ffc000  0000000001ffffff  000000000000000f
 Boot Services Data      0000000002000000  0000000002010fff  000000000000000f
 Boot Services Code      0000000002011000  0000000002011fff  000000000000000f
 Boot Services Data      0000000002012000  000000000201bfff  000000000000000f
 Boot Services Code      000000000201c000  000000000202bfff  000000000000000f
 Boot Services Data      000000000202c000  000000000202cfff  000000000000000f
 Boot Services Code      000000000202d000  0000000002032fff  000000000000000f
 Boot Services Data      0000000002033000  000000000203ffff  000000000000000f
 Boot Services Code      0000000002040000  0000000002042fff  000000000000000f
 Boot Services Data      0000000002043000  000000000204bfff  000000000000000f
 Boot Services Code      000000000204c000  000000000204ffff  000000000000000f
 Boot Services Data      0000000002050000  0000000002051fff  000000000000000f
 Boot Services Code      0000000002052000  0000000002053fff  000000000000000f
 Boot Services Data      0000000002054000  000000000205efff  000000000000000f
 Boot Services Code      000000000205f000  0000000002068fff  000000000000000f
 Boot Services Data      0000000002069000  000000000206efff  000000000000000f
 Boot Services Code      000000000206f000  000000000208cfff  000000000000000f
 Boot Services Data      000000000208d000  0000000002092fff  000000000000000f
 Boot Services Code      0000000002093000  0000000002095fff  000000000000000f
 Boot Services Data      0000000002096000  000000000209afff  000000000000000f
 Boot Services Code      000000000209b000  000000000209cfff  000000000000000f
 Boot Services Data      000000000209d000  000000000209dfff  000000000000000f
 Press Any Key to continue :
 Boot Services Code      000000000209e000  00000000020a2fff  000000000000000f
 Boot Services Data      00000000020a3000  00000000020acfff  000000000000000f
 Boot Services Code      00000000020ad000  00000000020affff  000000000000000f
 Boot Services Data      00000000020b0000  00000000020bcfff  000000000000000f
 Boot Services Code      00000000020bd000  00000000020befff  000000000000000f
 Boot Services Data      00000000020bf000  00000000020c2fff  000000000000000f
 Boot Services Code      00000000020c3000  00000000020c8fff  000000000000000f
 Boot Services Data      00000000020c9000  00000000020cffff  000000000000000f
 Boot Services Code      00000000020d0000  00000000020d6fff  000000000000000f
 Boot Services Data      00000000020d7000  00000000020f2fff  000000000000000f
 Boot Services Code      00000000020f3000  00000000020f4fff  000000000000000f
 Boot Services Data      00000000020f5000  000000000210dfff  000000000000000f
 Boot Services Code      000000000210e000  0000000002119fff  000000000000000f
 Boot Services Data      000000000211a000  000000000213dfff  000000000000000f
 Boot Services Code      000000000213e000  0000000002190fff  000000000000000f
 Boot Services Data      0000000002191000  000000000219efff  000000000000000f
 Boot Services Code      000000000219f000  00000000021a7fff  000000000000000f
 Boot Services Data      00000000021a8000  00000000021a8fff  000000000000000f
 Boot Services Code      00000000021a9000  00000000021bdfff  000000000000000f
 Boot Services Data      00000000021be000  00000000021c0fff  000000000000000f
 Boot Services Code      00000000021c1000  00000000021c2fff  000000000000000f
 Boot Services Data      00000000021c3000  00000000021d7fff  000000000000000f
 Boot Services Code      00000000021d8000  00000000021d8fff  000000000000000f
 Boot Services Data      00000000021d9000  00000000021dafff  000000000000000f
 Boot Services Code      00000000021db000  00000000021e9fff  000000000000000f
 Boot Services Data      00000000021ea000  00000000021ebfff  000000000000000f
 Boot Services Code      00000000021ec000  00000000021edfff  000000000000000f
 Boot Services Data      00000000021ee000  00000000021fafff  000000000000000f
 Boot Services Code      00000000021fb000  00000000021fffff  000000000000000f
 Press Any Key to continue :
 Boot Services Data      0000000002200000  0000000002203fff  000000000000000f
 Boot Services Code      0000000002204000  0000000002207fff  000000000000000f
 Boot Services Data      0000000002208000  0000000002235fff  000000000000000f
 Boot Services Code      0000000002236000  000000000223dfff  000000000000000f
 Boot Services Data      000000000223e000  0000000002240fff  000000000000000f
 Boot Services Code      0000000002241000  0000000002265fff  000000000000000f
 Boot Services Data      0000000002266000  000000000226ffff  000000000000000f
 Boot Services Code      0000000002270000  0000000002272fff  000000000000000f
 Boot Services Data      0000000002273000  0000000002279fff  000000000000000f
 Boot Services Code      000000000227a000  000000000227bfff  000000000000000f
 Boot Services Data      000000000227c000  000000000227cfff  000000000000000f
 Boot Services Code      000000000227d000  000000000227ffff  000000000000000f
 Boot Services Data      0000000002280000  0000000002364fff  000000000000000f
 Boot Services Code      0000000002365000  0000000002771fff  000000000000000f
 Boot Services Data      0000000002772000  000000000bdebfff  000000000000000f
 Boot Services Code      000000000bdec000  000000000bdedfff  000000000000000f
 Boot Services Data      000000000bdee000  000000000bdf5fff  000000000000000f
 Boot Services Code      000000000bdf6000  000000000bdf8fff  000000000000000f
 Boot Services Data      000000000bdf9000  000000000bdfffff  000000000000000f
 Loader Data             000000000be00000  000000000be02fff  000000000000000f
 Boot Services Data      000000000be03000  000000000bf73fff  000000000000000f
 Boot Services Code      000000000bf74000  000000000bf8cfff  000000000000000f
 Boot Services Data      000000000bf8d000  000000000c033fff  000000000000000f
 Conventional Memory     000000000c034000  000000000c062fff  000000000000000f
 Loader Code             000000000c063000  000000000c0a1fff  000000000000000f
 Conventional Memory     000000000c0a2000  000000000c1fefff  000000000000000f
 Boot Services Data      000000000c1ff000  000000000c3e4fff  000000000000000f
 Conventional Memory     000000000c3e5000  00000000d6b89fff  000000000000000f
 Loader Data             00000000d6b8a000  00000000deb89fff  000000000000000f
 Press Any Key to continue :
 Runtime Services Code   00000000deb8a000  00000000debcafff  800000000000000f
 Runtime Services Data   00000000debcb000  00000000debfafff  800000000000000f
 Runtime Services Code   00000000debfb000  00000000dec0ffff  800000000000000f
 Runtime Services Data   00000000dec10000  00000000dec1dfff  800000000000000f
 Runtime Services Data   00000000dec1e000  00000000dec1ffff  800000000000000f
 Runtime Services Data   00000000dec20000  00000000dec21fff  800000000000000f
 Runtime Services Data   00000000dec22000  00000000dec39fff  800000000000000f
 Reserved Memory Type    00000000dec3a000  00000000dee02fff  000000000000000f
 ACPI Memory NVS         00000000dee03000  00000000dee86fff  000000000000000f
 Reserved Memory Type    00000000dee87000  00000000df0dffff  000000000000000f
 Reserved Memory Type    00000000df0e0000  00000000df0e6fff  000000000000000f
 Reserved Memory Type    00000000df0e7000  00000000df139fff  000000000000000f
 ACPI Memory NVS         00000000df13a000  00000000df14bfff  000000000000000f
 ACPI Memory NVS         00000000df14c000  00000000df38cfff  000000000000000f
 ACPI Reclaim Memory     00000000df38d000  00000000df399fff  000000000000000f
 ACPI Memory NVS         00000000df39a000  00000000df3b9fff  000000000000000f
 ACPI Reclaim Memory     00000000df3ba000  00000000df3bdfff  000000000000000f
 ACPI Reclaim Memory     00000000df3be000  00000000df3befff  000000000000000f
 ACPI Memory NVS         00000000df3bf000  00000000df401fff  000000000000000f
 Boot Services Data      00000000df402000  00000000df547fff  000000000000000f
 Boot Services Code      00000000df548000  00000000df7d3fff  000000000000000f
 Boot Services Data      00000000df7d4000  00000000df7dcfff  000000000000000f
 Boot Services Code      00000000df7dd000  00000000df7e6fff  000000000000000f
 Boot Services Data      00000000df7e7000  00000000df7e8fff  000000000000000f
 Boot Services Code      00000000df7e9000  00000000df7ecfff  000000000000000f
 Boot Services Data      00000000df7ed000  00000000df7fffff  000000000000000f
 MMIO                    00000000f8000000  00000000fbffffff  8000000000000001
 MMIO                    00000000fec00000  00000000fec00fff  8000000000000001
 MMIO                    00000000fed00000  00000000fed03fff  8000000000000001
 Press Any Key to continue :
 MMIO                    00000000fed1c000  00000000fed1ffff  8000000000000001
 MMIO                    00000000fee00000  00000000fee00fff  8000000000000001
 MMIO                    00000000ff000000  00000000ffffffff  8000000000000001
 Conventional Memory     0000000100000000  000000041effffff  000000000000000f
 > 
 
 
 
 >  Also, are there any errors logged by apei(4) in CSM mode after the system
 >  reboots from a failed UEFI boot?
 
 That I can't test easily right now, will move the machine back in a testable
 setup if that helps and the problem is not obvious.
 
 Martin
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