Hello In case it rings a bell for someone: Trying latest netbsd-7 XEN3PAE_DOM0 build for i386, I get a reproductible crash when attaching agp:
(XEN) Xen version 4.5.3 (root@) (gcc (NetBSD nb2 20110806) 4.5.3) debug=n Sun Jul 31 01:32:12 UTC 2016 (XEN) Latest ChangeSet: (XEN) Bootloader: unknown (XEN) Command line: dom0_mem=256M console=com1 com1=115200,8n1 (XEN) Video information: (XEN) VGA is text mode 80x25, font 8x16 (XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds (XEN) EDID info not retrieved because no DDC retrieval method detected (XEN) Disc information: (XEN) Found 2 MBR signatures (XEN) Found 2 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009dc00 (usable) (XEN) 000000000009dc00 - 00000000000a0000 (reserved) (XEN) 00000000000ce000 - 00000000000d0000 (reserved) (XEN) 00000000000e4000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000bf570000 (usable) (XEN) 00000000bf570000 - 00000000bf585000 (ACPI data) (XEN) 00000000bf585000 - 00000000bf588000 (ACPI NVS) (XEN) 00000000bf588000 - 00000000c0000000 (reserved) (XEN) 00000000e0000000 - 00000000f0000000 (reserved) (XEN) 00000000fec00000 - 00000000fec10000 (reserved) (XEN) 00000000fee00000 - 00000000fee01000 (reserved) (XEN) 00000000ff000000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 0000000140000000 (usable) (XEN) ACPI: RSDP 000F6680, 0024 (r2 PTLTD ) (XEN) ACPI: XSDT BF579F25, 00A4 (r1 PTLTD XSDT 6040000 LTP 0) (XEN) ACPI: FACP BF584B69, 00F4 (r3 INTEL 6040000 PTL 2) (XEN) ACPI: DSDT BF57D6FA, 73FB (r1 INTEL BEARLAKE 6040000 MSFT 3000001) (XEN) ACPI: FACS BF587FC0, 0040 (XEN) ACPI: _MAR BF584C5D, 012F (r1 Intel OEMDMAR 6040000 LOHR 1) (XEN) ACPI: TCPA BF584D8C, 0032 (r1 Intel 6040000 PTL 5A) (XEN) ACPI: MCFG BF584DBE, 003C (r1 PTLTD MCFG 6040000 LTP 0) (XEN) ACPI: APIC BF584DFA, 0068 (r1 PTLTD APIC 6040000 LTP 0) (XEN) ACPI: BOOT BF584E62, 0028 (r1 PTLTD $SBFTBL$ 6040000 LTP 1) (XEN) ACPI: SLIC BF584E8A, 0176 (r1 OEMID_ OEMTABLE 6040000 LTP 0) (XEN) ACPI: SSDT BF57B83C, 025F (r1 PmRef Cpu0Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B796, 00A6 (r1 PmRef Cpu7Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B6F0, 00A6 (r1 PmRef Cpu6Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B64A, 00A6 (r1 PmRef Cpu5Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B5A4, 00A6 (r1 PmRef Cpu4Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B4FE, 00A6 (r1 PmRef Cpu3Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B458, 00A6 (r1 PmRef Cpu2Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF57B3B2, 00A6 (r1 PmRef Cpu1Tst 3000 INTL 20050228) (XEN) ACPI: SSDT BF579FC9, 13E9 (r1 PmRef CpuPm 3000 INTL 20050228) (XEN) System RAM: 4085MB (4183092kB) (XEN) Domain heap initialised (XEN) Processor #0 7:7 APIC version 20 (XEN) Processor #1 7:7 APIC version 20 (XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23 (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Detected 2593.562 MHz processor. (XEN) Initing memory sharing. (XEN) xstate_init: using cntxt_size: 0x240 and states: 0x3 (XEN) I/O virtualisation disabled (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) Platform timer is 3.579MHz ACPI PM Timer (XEN) Allocated console ring of 16 KiB. (XEN) CPU0: VMX disabled by BIOS. (XEN) VMX: failed to initialise. (XEN) Brought up 2 CPUs (XEN) CPUIDLE: disabled due to no HPET. Force enable with 'cpuidle'. (XEN) Dom0 has maximum 400 PIRQs (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc0d15af8 (XEN) Dom0 symbol map 0xc0d15af8 -> 0xc0e07460 (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 000000013b000000->000000013c000000 (61440 pages to be allocated) (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: 00000000c0100000->00000000c0e07460 (XEN) Init. ramdisk: 00000000c0e08000->00000000c0e08000 (XEN) Phys-Mach map: 00000000c0e08000->00000000c0e48000 (XEN) Start info: 00000000c0e48000->00000000c0e484b4 (XEN) Page tables: 00000000c0e49000->00000000c0e56000 (XEN) Boot stack: 00000000c0e56000->00000000c0e57000 (XEN) TOTAL: 00000000c0000000->00000000c1000000 (XEN) ENTRY ADDRESS: 00000000c0100000 (XEN) Dom0 has maximum 2 VCPUs (XEN) Scrubbing Free RAM on 1 nodes using 2 CPUs (XEN) ....................done. (XEN) Initial low memory virq threshold set at 0x4000 pages. (XEN) Std. Loglevel: Errors and warnings (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings) (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) (XEN) Freed 296kB init memory. Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 The NetBSD Foundation, Inc. All rights reserved. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. NetBSD 7.1_RC1 (XEN3PAE_DOM0.201701090010Z) total memory = 256 MB avail memory = 237 MB kern.module.path=/stand/i386/7.1/modules mainbus0 (root) ACPI: RSDP 0xf6680 000024 (v02 PTLTD ) ACPI: XSDT 0xbf579f25 0000A4 (v01 PTLTD ? XSDT 06040000 LTP 00000000) ACPI: FACP 0xbf584b69 0000F4 (v03 INTEL 06040000 PTL 00000002) ACPI: DSDT 0xbf57d6fa 0073FB (v01 INTEL BEARLAKE 06040000 MSFT 03000001) ACPI: FACS 0xbf587fc0 000040 ACPI: _MAR 0xbf584c5d 00012F (v01 Intel OEMDMAR 06040000 LOHR 00000001) ACPI: TCPA 0xbf584d8c 000032 (v01 Intel 06040000 PTL 0000005A) ACPI: MCFG 0xbf584dbe 00003C (v01 PTLTD MCFG 06040000 LTP 00000000) ACPI: APIC 0xbf584dfa 000068 (v01 PTLTD ? APIC 06040000 LTP 00000000) ACPI: BOOT 0xbf584e62 000028 (v01 PTLTD $SBFTBL$ 06040000 LTP 00000001) ACPI: SLIC 0xbf584e8a 000176 (v01 OEMID_ OEMTABLE 06040000 LTP 00000000) ACPI: SSDT 0xbf57b83c 00025F (v01 PmRef Cpu0Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b796 0000A6 (v01 PmRef Cpu7Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b6f0 0000A6 (v01 PmRef Cpu6Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b64a 0000A6 (v01 PmRef Cpu5Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b5a4 0000A6 (v01 PmRef Cpu4Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b4fe 0000A6 (v01 PmRef Cpu3Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b458 0000A6 (v01 PmRef Cpu2Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf57b3b2 0000A6 (v01 PmRef Cpu1Tst 00003000 INTL 20050228) ACPI: SSDT 0xbf579fc9 0013E9 (v01 PmRef CpuPm 00003000 INTL 20050228) ACPI: All ACPI Tables successfully acquired ioapic0 at mainbus0 apid 2 (XEN) ioapic_guest_write: apic=0, pin=0, irq=0 (XEN) ioapic_guest_write: new_entry=000109f0 (XEN) ioapic_guest_write: old_entry=00010000 pirq=-1 (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! (XEN) ioapic_guest_write: apic=0, pin=2, irq=0 (XEN) ioapic_guest_write: new_entry=000109f0 (XEN) ioapic_guest_write: old_entry=000009f0 pirq=-1 (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! (XEN) ioapic_guest_write: apic=0, pin=4, irq=4 (XEN) ioapic_guest_write: new_entry=000109f1 (XEN) ioapic_guest_write: old_entry=000009f1 pirq=-1 (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! cpu0 at mainbus0 apid 0 cpu1 at mainbus0 apid 1 hypervisor0 at mainbus0: Xen version 4.5.3 vcpu0 at hypervisor0: Pentium(R) Dual-Core CPU E5300 @ 2.60GHz, id 0x1067a xenbus0 at hypervisor0: Xen Virtual Bus Interface xencons0 at hypervisor0: Xen Virtual Console Driver acpi0 at hypervisor0: Intel ACPICA 20131218 ACPI: SSDT 0xbf57ba9b 000261 (v01 PmRef Cpu0Ist 00003000 INTL 20050228) ACPI: SSDT 0x0 000261 (v01 PmRef Cpu0Ist 00003000 INTL 20050228) MBRD (PNP0C02) at acpi0 not configured MATH (PNP0C04) at acpi0 not configured SPKR (PNP0800) at acpi0 not configured TIMR (PNP0100) at acpi0 not configured FWH (INT0800) at acpi0 not configured KBC0 (PNP0303) at acpi0 not configured MSE0 (PNP0F13) at acpi0 not configured COM1 (PNP0501) at acpi0 not configured COM2 (PNP0501) at acpi0 not configured acpibut0 at acpi0 (PWRB, PNP0C0C): ACPI Power Button ACPI: Enabled 1 GPEs in block 00 to 3F ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20131218/hwxface-646) ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S3_] (20131218/hwxface-646) pci0 at hypervisor0 bus 0: configuration mode 1 pchb0 at pci0 dev 0 function 0: vendor 0x8086 product 0x29b0 (rev. 0x02) agp0 at pchb0: G33-family chipset (XEN) mm.c:868:d0v0 pg_owner 0 l1e_owner 0, but real_pg_owner -1 (XEN) mm.c:939:d0v0 Error getting mfn 100 (pfn ffffffffffffffff) from L1 entry 8000000000100013 for l1e_owner=0, pg_owner=0 xpq_flush_queue: 1 entries (0 successful) on cpu0 (0) cpu0 (0): 0x000000012d199d20: 0x8000000000100013 panic: HYPERVISOR_mmu_update failed, ret: -16 fatal breakpoint trap in supervisor mode trap type 1 code 0 eip c021ec04 cs 9 eflags 246 cr2 0 ilevel 8 esp c0e59964 curlwp 0xc0ba53e0 pid 0 lid 1 lowest kstack 0xc0e582c0 Stopped in pid 0.1 (system) at netbsd:breakpoint+0x4: popl %ebp breakpoint(c0a45538,c0c058a0,c0a49900,c0e59980,1,1,c0c104f0,c0e59974,c06 74158,c0 a49900) at netbsd:breakpoint+0x4 vpanic(c0a49900,c0e59980,c0e599a8,c07918bb,c0a49900,fffffff0,1,100013,80 000000,f ffffff0) at netbsd:vpanic+0x11a panic(c0a49900,fffffff0,1,100013,80000000,fffffff0,0,0,1,d20) at netbsd:panic+0x 18 xpq_flush_queue(2d199d20,1,100013,80000000,100013,0,0,ccda4000,100000,0) at netb sd:xpq_flush_queue+0x16b pmap_kenter_ma(ccda4000,100000,0,3,100,101000,0,0,101000,100) at netbsd:pmap_ken ter_ma+0xd2 x86_mem_add_mapping(100000,0,1000,0,c132dc64,c0b4c1a0,0,c0e59a8c,c01eb0f 7,c0b4c1 a0) at netbsd:x86_mem_add_mapping+0x122 bus_space_reservation_map(c0b4c1a0,c0e59a74,0,c132dc64,ffffffff,1000,100 0,0,0,c0 e59a74) at netbsd:bus_space_reservation_map+0x5e bus_space_alloc(c0b4c1a0,100000,0,ffffffff,ffffffff,1000,1000,0,0,c132dc 68) at n etbsd:bus_space_alloc+0x87 agp_i810_attach(c147dac0,c147d940,c0e59bec,c1442a80,c0e59be8,c147dac0,c0 7e9090,c 0b3d498,c147d940,c09cf666) at netbsd:agp_i810_attach+0x73d agpattach(c147dac0,c147d940,c0e59be8,c147d940,c147dac0,0,c0e59cb4,c0e59b 80,c0662 ce6,c147dac0) at netbsd:agpattach+0xcc config_attach_loc(c147dac0,c0b3cc28,0,c0e59be8,c0129300,0,c0e59c34,c059a de8,c147 dac0,c09cfe7d) at netbsd:config_attach_loc+0x185 config_found_ia(c147dac0,c09cfe7d,c0e59be8,c0129300,c07cbc53,c1448e00,c1 448e5c,c 1448e44,c1448e50,3) at netbsd:config_found_ia+0x36 pchbattach(c147dc40,c147dac0,c0e59cb4,c147dac0,c14d4030,0,c14d4000,c0e59 cfc,c059 c7ac,c147dc40) at netbsd:pchbattach+0x158 config_attach_loc(c147dc40,c0b3cc58,c0e59cac,c0e59cb4,c059ba00,c06622a0, c0e59c90 ,6000002,29b08086,8086) at netbsd:config_attach_loc+0x185 pci_probe_device(c14d4000,80000000,0,0,0,c0e59d40,0,0,0,0) at netbsd:pci_probe_d evice+0x47c pci_enumerate_bus(c14d4000,c0985fc8,0,0,c0e59dbc,c059cbfb,c147dc40,c09f4 eeb,c098 5fc8,c0bd3f44) at netbsd:pci_enumerate_bus+0x1b2 pcirescan(c147dc40,c09f4eeb,c0985fc8,c0bd3f44,c0a0441c,0,0,c147dc40,c0b3 d498,c14 7dc40) at netbsd:pcirescan+0x30 pciattach(c1323600,c147dc40,c0e59e18,c147dc40,c0e59e18,c1323600,c0e59e48 ,c0e59e0 0,c0662ce6,c1323600) at netbsd:pciattach+0x1bb config_attach_loc(c1323600,c0b3c388,0,c0e59e18,c05a5400,0,c0e59e68,c02e6 908,c132 3600,c09cfda7) at netbsd:config_attach_loc+0x185 config_found_ia(c1323600,c09cfda7,c0e59e18,c05a5400,0,c0b4c1c0,c0b4c1a0, c0ba9340 ,0,0) at netbsd:config_found_ia+0x36 hypervisor_attach(c1323c00,c1323600,c0e59ec8,c1323600,c0e59ec8,c1323c00, c0e59eec ,c0e59eac,c0662ce6,c1323c00) at netbsd:hypervisor_attach+0x168 config_attach_loc(c1323c00,c0b3c2b0,0,c0e59ec8,c0501af0,0,c0e59ef8,c0501 ba5,c132 3c00,c09cfe8e) at netbsd:config_attach_loc+0x185 config_found_ia(c1323c00,c09cfe8e,c0e59ec8,c0501af0,2,c09cf81f,c0b4c1a0, 0,0,0) a t netbsd:config_found_ia+0x36 mainbus_attach(0,c1323c00,0,c1323c00,0,c09cf817,c0c10200,c0e59f40,c0662d aa,0) at netbsd:mainbus_attach+0x85 config_attach_loc(0,c0b3c298,0,0,0,0,aaaa000,c0e59f54,c01cf419,c09cf817) at netb sd:config_attach_loc+0x185 config_rootfound(c09cf817,0,0,c0e59fa0,c07d0728,c0a0562e,6,3,0,0) at netbsd:conf ig_rootfound+0x4a cpu_configure(c0a0562e,6,3,0,0,fffa,0,1,fffa,1999000) at netbsd:cpu_configure+0x 29 main(0,0,0,0,0,0,0,0,0,0) at netbsd:main+0x2c8 ds c0c00011 inet4_reserve+0x71 es 11 fs 36310031 gs 11 edi c0e59980 esi c0a49900 ostype+0x7a447 ebp c0e59940 ebx 104 edx c0c059a8 kprintf_mtx ecx 8 eax 1 eip c021ec04 breakpoint+0x4 cs 9 eflags 246 esp c0e59940 ss 11 netbsd:breakpoint+0x4: popl %ebp -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz m...@netbsd.org