Assertion '!is_idle_vcpu(v)' failed after 'Remove fully_eager_fpu' commit on EFI

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Hi,

Since commit dba44e051209 ("x86: Remove fully_eager_fpu"), I can't boot
a machine and get assertion '!is_idle_vcpu(v)' failed instead. It's
netbooted and EFI.

Xen call trace:
   [<ffff82d04033da2c>] R vcpu_save_fpu+0x65/0xdc
   [<ffff82d04029c5c4>] S efi_rs_enter+0x37/0x16a
   [<ffff82d04029c7e3>] F efi_get_time+0x19/0xb2
   [<ffff82d04047cbf0>] F init_xen_time+0x1e3/0x2b4
   [<ffff82d040477a49>] F __start_xen+0x1d71/0x24b8
   [<ffff82d0402043e7>] F __high_start+0xb7/0xc0

Assertion '!is_idle_vcpu(v)' failed at arch/x86/i387.c:195

A few more lines from Xen:
    CPU Vendor: Intel, Family 6 (0x6), Model 86 (0x56), Stepping 3 (raw 
00050663)
    Bootloader: GRUB 2.06
    [...]
    Enabling APIC mode.  Using 2 I/O APICs
    ENABLING IO-APIC IRQs
     -> Using old ACK method
     ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
    TSC deadline timer enabled
    Assertion '!is_idle_vcpu(v)' failed at arch/x86/i387.c:195

Commit this Xen is built from: 50936ea05660.

full logs at:
    
https://paste.vates.tech/?bd8a9a0955798a97#A1DU2efwUt7bbHQUxdo9UXGcsJ2XPNJNZHPz87LqLtcF

Thanks,


--
 | Vates

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech