On Fri, Sep 05, 2025 at 09:18:49AM +0100, Stuart Henderson wrote: > "machine mem" takes an optional argument to either restrict max memory, or > add/remove certain ranges - https://man.openbsd.org/amd64/boot#memory - you > could try excluding some of the memory ranges from the list you showed. >
N.B. - machine mem to restrict memory doesn't work on EFI. -ml > > -- > Sent from a phone, apologies for poor formatting. > > On 5 September 2025 01:02:28 Ignacio Valdez <[email protected]> wrote: > > OpenBSD Bug Report - HP EliteDesk 800 G6 SFF Boot Hang > > > > > > > > > > Hardware Information > > System: HP EliteDesk 800 G6 SFF (manufactured 2020) > > Architecture: amd64 > > Boot Mode: UEFI only (no Legacy/CSM option available) > > Memory: 16GB+ (16548068KB total free memory reported) > > Problem Description > > > > OpenBSD consistently hangs during boot with the message "entry point at > > 0x1001000" on this hardware. The system boots successfully with FreeBSD > > and other operating systems. > > > > Versions Tested > > > > All exhibit the same behavior: > > > > OpenBSD 7.7 (miniroot77.img) > > OpenBSD 7.4 > > OpenBSD 6.9 > > Current snapshots > > Troubleshooting Attempted > > > > Boot options tried: > > > > boot -s (single user) > > boot -v (verbose) > > boot -c (UKC mode) > > boot -d (debugger) > > > > Bootloader replacement: > > > > Replaced BOOTX64.EFI with version from OpenBSD 6.6 > > No change in behavior > > > > UEFI/BIOS settings: > > > > Disabled Secure Boot > > Tried different SATA modes (AHCI vs Intel RST) > > Various other firmware settings > > Note: No Legacy boot option available > > Memory Map Information > > > > Output from mach mem command at boot prompt: > > > > probing: pc0 mem[635K 2830M 200K 281M 13048M] > > disk: hd0 hd1* > > > > OpenBSD/amd64 BOOTX64 3.67 > > boot> mach mem > > Region 0: type 1 at 0x0 for 636KB > > Region 1: type 2 at 0x9f000 for 388KB > > Region 2: type 1 at 0x100000 for 2898324KB > > Region 3: type 4 at 0xb0f65000 for 4KB > > Region 4: type 1 at 0xb0f66000 for 200KB > > Region 5: type 2 at 0xb0f98000 for 4KB > > Region 6: type 1 at 0xb0f99000 for 287752KB > > Region 7: type 2 at 0xc289b000 for 21392KB > > Region 8: type 4 at 0xc3d7f000 for 204KB > > Region 9: type 3 at 0xc3f7f000 for 512KB > > Region 10: type 1 at 0xc3fff000 for 4KB > > Region 11: type 1 at 0x100000000 for 13361152KB > > Region 12: type 2 at 0xc4000000 for 139264KB > > Region 13: type 2 at 0xff000000 for 16384KB > > Low ram: 1024KB High ram: 3349504KB > > Total free memory: 16548006KB > > > > Key Observations > > Boot hangs at 0x1001000, which is just after Region 2 (type 1 at 0x100000) > > Kernel size is 4.6MB (well under reported 18MB UEFI limits) > > System has adequate memory (16GB+) > > This appears to be a UEFI memory allocation issue similar to reported > > problems on other recent HP business machines > > Similar Reports Found > > > > This issue appears related to other reports on HP Elitebook 840 G10 and > > similar UEFI-only HP business machines from 2020+ that lack Legacy boot > > support. > > > > Workaround Status > > > > No successful workarounds found. FreeBSD installs and runs successfully > > on the same hardware, confirming the system is functional. > > > > Request > > > > This represents a significant compatibility issue with common business > > hardware. Any guidance on: > > > > Additional debugging steps > > Potential UEFI bootloader fixes > > Timeline for addressing this class of UEFI compatibility issues > > > > Would be greatly appreciated. > > > > Reported by: Ignacio Valdez > > Email: [email protected] >
