On Fri, Feb 13, 2026 at 01:39:56AM +0100, Marek Marczykowski-Górecki wrote: > On Fri, Sep 15, 2023 at 09:43:47AM +0200, Roger Pau Monne wrote: > > The current logic to chose the preferred reboot method is based on the mode > > Xen > > has been booted into, so if the box is booted from UEFI, the preferred > > reboot > > method will be to use the ResetSystem() run time service call. > > > > However, that method seems to be widely untested, and quite often leads to a > > result similar to: > > > > Hardware Dom0 shutdown: rebooting machine > > ----[ Xen-4.18-unstable x86_64 debug=y Tainted: C ]---- > > CPU: 0 > > RIP: e008:[<0000000000000017>] 0000000000000017 > > RFLAGS: 0000000000010202 CONTEXT: hypervisor > > [...] > > Xen call trace: > > [<0000000000000017>] R 0000000000000017 > > [<ffff83207eff7b50>] S ffff83207eff7b50 > > [<ffff82d0403525aa>] F machine_restart+0x1da/0x261 > > [<ffff82d04035263c>] F apic_wait_icr_idle+0/0x37 > > [<ffff82d040233689>] F smp_call_function_interrupt+0xc7/0xcb > > [<ffff82d040352f05>] F call_function_interrupt+0x20/0x34 > > [<ffff82d04033b0d5>] F do_IRQ+0x150/0x6f3 > > [<ffff82d0402018c2>] F common_interrupt+0x132/0x140 > > [<ffff82d040283d33>] F > > arch/x86/acpi/cpu_idle.c#acpi_idle_do_entry+0x113/0x129 > > [<ffff82d04028436c>] F > > arch/x86/acpi/cpu_idle.c#acpi_processor_idle+0x3eb/0x5f7 > > [<ffff82d04032a549>] F arch/x86/domain.c#idle_loop+0xec/0xee > > > > **************************************** > > Panic on CPU 0: > > FATAL TRAP: vector = 6 (invalid opcode) > > **************************************** > > > > Which in most cases does lead to a reboot, however that's unreliable. > > It's not relevant anymore, but posting just for the posterity: I > just found yet another system where EFI ResetSystem() crashes. What's > interesting about it, it's rather new system - NUC 14 with Lunar Lake. > It crashes as follows:
Interesting, all the NUC systems I owned had what seemed like proper UEFI implementations. However those are the Intel ones. Lunar Lake is made by ASUS. Thanks, Roger.
