On 5/23/2025 4:22 PM, Manuel Bouyer wrote: > On Fri, May 23, 2025 at 04:19:46PM -0400, Chuck Zmudzinski wrote: >> On 5/23/2025 4:15 PM, Manuel Bouyer wrote: >> > On Fri, May 23, 2025 at 04:13:01PM -0400, Chuck Zmudzinski wrote: >> >> [...] >> >> I needed to acquire a PCI serial card to get some useful messages because >> >> the motherboard does not have a built-in serial port. >> >> >> >> It appears Xen 4.18.4_20241221nb0 from pkgsrc crashes on my box before >> >> the NetBSD dom0 starts: >> >> >> >> -------- snip ------ >> >> (XEN) Xen call trace: >> >> (XEN) [<ffff82d040261a00>] R intel_iommu_enable_eim+0/0xe0 >> >> (XEN) [<ffff82d040268ac4>] S iommu_enable_x2apic+0x24/0x70 >> >> (XEN) [<ffff82d0403f579d>] S x2apic_bsp_setup+0x12d/0x220 >> >> (XEN) [<ffff82d0403ff0e4>] S __start_xen+0x1af4/0x2620 >> >> (XEN) [<ffff82d040204434>] S __high_start+0x94/0xa0 >> >> (XEN) >> >> (XEN) >> >> (XEN) **************************************** >> >> (XEN) Panic on CPU 0: >> >> (XEN) CONTROL-FLOW PROTECTION FAULT: #CP[0003] endbranch >> >> (XEN) **************************************** >> >> (XEN) >> >> (XEN) Reboot in five seconds... >> >> (XEN) Resetting with ACPI MEMORY or I/O RESET_REG. >> >> -------- end messages ------ >> > >> > Do you have a way to disable x2apic in the BIOS ? >> >> I can check later this evening but I have an appointment now. >> >> > >> >> >> >> Please note only the pkgsrc version of Xen crashes. I can boot Xen with >> >> no problems using Xen packaged by Fedora, AlmaLinux, etc. on this box. >> > >> > Is it the same Xen version ? >> >> More or less - I know Xen 4.18.4 worked, now Fedora is at Xen 4.19. > > strange; maybe they had a patch. > Note that I just updated xen in pkgsrc to 4.18.5 >
Actually, I do remember that Xen 4.19.1 from Fedora did not work on my box but a patch that was added in 4.19.2 fixed it. I see the patch I needed on the Xen 4.19 branch was not added in Xen 4.18.4 but it is added in Xen 4.18.5, so maybe it will be fixed in Xen 4.18.5. I will try it when I can download Xen 4.18.5. Thanks.
