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dkim=pass header.d=citrix.com header.s=securemail header.b=XihkpgEQ; dkim=pass header.d=citrix.onmicrosoft.com header.s=selector2-citrix-onmicrosoft-com header.b=cMeLuQfA; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=reject) header.from=citrix.com; spf=pass (mx1.freebsd.org: domain of "prvs=1504b46c8=roger.pau@citrix.com" designates 216.71.155.144 as permitted sender) smtp.mailfrom="prvs=1504b46c8=roger.pau@citrix.com" X-Spamd-Result: default: False [-6.20 / 15.00]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+exists:216.71.155.144.spf.hc3370-68.iphmx.com]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; RCVD_COUNT_THREE(0.00)[4]; RCVD_IN_DNSWL_MED(-0.20)[216.71.155.144:from]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[citrix.com,reject]; DKIM_TRACE(0.00)[citrix.com:+,citrix.onmicrosoft.com:+]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:16417, ipnet:216.71.154.0/23, country:US]; FROM_NEQ_ENVFROM(0.00)[roger.pau@citrix.com,prvs=1504b46c8=roger.pau@citrix.com]; ARC_ALLOW(-1.00)[microsoft.com:s=arcselector9901:i=1]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[citrix.com:s=securemail,citrix.onmicrosoft.com:s=selector2-citrix-onmicrosoft-com]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FORGED_SENDER_VERP_SRS(0.00)[]; DWL_DNSWL_LOW(-1.00)[citrix.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MLMMJ_DEST(0.00)[freebsd-xen]; MID_RHS_NOT_FQDN(0.50)[] X-ThisMailContainsUnwantedMimeParts: N On Sat, Jun 04, 2022 at 01:03:55PM -0700, Brian Buhrow wrote: > Hello. In the process of getting the netback.c patch into a working ker= nel on the system > I'm updating, I discovered that Stable/13 doesn't boot successfully when = xen-4.16 is running. > Specifically, the system hangs while configuring the PCI busses. I suspe= ct it has something to > do with the failure of the hpet timers to attach. > I do not know if it works with older versions of the xen hypervisor, but = it boots and runs fine > without xen running. Below are two boot logs, the first with xen install= ed and running, the > one that fails, and the successfful boot, with FreeBSD running on bare m= etal. > Hopefully this is a known issue and there is an easy fix. >=20 > -thanks > -Brian >=20 > Version info: >=20 > FreeBSD xen-lothlorien.nfbcal.org 13.1-STABLE FreeBSD 13.1-STABLE #0 stab= le/13-984a45d77: Sat Jun 4 07:38:09 PDT 2022 buhrow@fbsd_dev.nfbcal.or= g:/usr/home/buhrow/obj/usr/home/buhrow/src/fbsd-src/13/amd64.amd64/sys/GENE= RIC amd64 >=20 > >=20 > BIOS drive C: is disk0 > BIOS drive D: is disk1 > BIOS drive E: is disk2 > BIOS drive F: is disk3 >=20 > FreeBSD/x86 bootstrap loader, Revision 1.1 > Loading /boot/defaults/loader.conf > Loading /boot/defaults/loader.conf > Loading /boot/device.hints > Loading /boot/loader.conf > Loading /boot/loader.conf.local > Autoboot in 1 seconds. [Space] to pause=20 > Loading Xen kernel... > /boot/xen data=3D0x2659c8+0x13e638 -=08 > Loading kernel... > /boot/kernel/kernel=20 > Loading configured modules... > /boot/kernel/ipmi.ko size 0x11950 at 0x21a6000 > loading required module 'smbus' > /boot/kernel/smbus.ko size 0x3cb0 at 0x21b8000 > /boot/kernel/geom_mirror.ko size 0x20c80 at 0x21bc000 > /boot/kernel/tpm.ko size 0xad70 at 0x21dd000 > /boot/firmware/intel-ucode.bin -=08size=3D0x303800 > /etc/hostid size=3D0x25 > /boot/entropy size=3D0x1000 > Xen 4.16.0 > (XEN) Xen version 4.16.0 (buhrow@) (FreeBSD clang version 13.0.0 (git@git= hub.com:llvm/llvm-project.git llvmorg-13.0.0-0-gd7b669b3a303)) debug=3Dn Th= u Jun 2 11:30:17 PDT 2022 > (XEN) Latest ChangeSet:=20 > (XEN) Bootloader: FreeBSD Loader > (XEN) Command line: dom0_mem=3D8192m dom0_max_vcpus=3D2 dom0=3Dpvh pv-l1t= f=3Doff,domu=3Doff console=3Dcom1,vga com1=3D9600,8n1 > (XEN) Xen image load base address: 0 > (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 4 MBR signatures > (XEN) Found 4 EDD information structures > (XEN) Xen-e820 RAM map: > (XEN) [0000000000000000, 00000000000997ff] (usable) > (XEN) [0000000000099800, 000000000009ffff] (reserved) > (XEN) [00000000000e0000, 00000000000fffff] (reserved) > (XEN) [0000000000100000, 000000001fffffff] (usable) > (XEN) [0000000020000000, 00000000201fffff] (reserved) > (XEN) [0000000020200000, 000000003fffffff] (usable) > (XEN) [0000000040000000, 00000000401fffff] (reserved) > (XEN) [0000000040200000, 00000000bc855fff] (usable) > (XEN) [00000000bc856000, 00000000bc85efff] (ACPI data) > (XEN) [00000000bc85f000, 00000000bc8a9fff] (ACPI NVS) > (XEN) [00000000bc8aa000, 00000000bc8b1fff] (usable) > (XEN) [00000000bc8b2000, 00000000bc9a4fff] (reserved) > (XEN) [00000000bc9a5000, 00000000bc9a6fff] (usable) > (XEN) [00000000bc9a7000, 00000000bcbc5fff] (reserved) > (XEN) [00000000bcbc6000, 00000000bcbc6fff] (usable) > (XEN) [00000000bcbc7000, 00000000bcbd6fff] (reserved) > (XEN) [00000000bcbd7000, 00000000bcbf4fff] (ACPI NVS) > (XEN) [00000000bcbf5000, 00000000bcc18fff] (reserved) > (XEN) [00000000bcc19000, 00000000bcc5bfff] (ACPI NVS) > (XEN) [00000000bcc5c000, 00000000bce7bfff] (reserved) > (XEN) [00000000bce7c000, 00000000bcffffff] (usable) > (XEN) [00000000bd800000, 00000000bf9fffff] (reserved) > (XEN) [00000000fed1c000, 00000000fed3ffff] (reserved) > (XEN) [00000000ff000000, 00000000ffffffff] (reserved) > (XEN) [0000000100000000, 000000083e5fffff] (usable) > (XEN) New Xen image base address: 0xbc200000 > (XEN) ACPI: RSDP 000F0450, 0024 (r2 INTEL) > (XEN) ACPI: XSDT BC856070, 0064 (r1 INTEL DQ67SW 1072009 AMI 1001= 3) > (XEN) ACPI: FACP BC85DBC0, 00F4 (r4 INTEL DQ67SW 1072009 AMI 1001= 3) > (XEN) ACPI: DSDT BC856168, 7A54 (r2 INTEL DQ67SW 16 INTL 2005111= 7) > (XEN) ACPI: FACS BCBDBF80, 0040 > (XEN) ACPI: APIC BC85DCB8, 0072 (r3 INTEL DQ67SW 1072009 AMI 1001= 3) > (XEN) ACPI: TCPA BC85DD30, 0032 (r2 INTEL DQ67SW 1 MSFT 100001= 3) > (XEN) ACPI: SSDT BC85DD68, 0102 (r1 INTEL DQ67SW 1 MSFT 300000= 1) > (XEN) ACPI: MCFG BC85DE70, 003C (r1 INTEL DQ67SW 1072009 MSFT 9= 7) > (XEN) ACPI: HPET BC85DEB0, 0038 (r1 INTEL DQ67SW 1072009 AMI. = 4) > (XEN) ACPI: ASF! BC85DEE8, 00A0 (r32 INTEL DQ67SW 1 TFSM F42= 40) > (XEN) ACPI: DMAR BC85DF88, 00E8 (r1 INTEL DQ67SW 1 INTL = 1) > (XEN) System RAM: 32683MB (33467896kB) > (XEN) Domain heap initialised > (XEN) ACPI: 32/64X FACS address mismatch in FADT - bcbdbf80/0000000000000= 000, using 32 > (XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23 > (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs > (XEN) PCI: Not using MCFG for segment 0000 bus 00-3f > (XEN) Switched to APIC driver x2apic_cluster > (XEN) CPU0: 1600 ... 3100 MHz > (XEN) xstate: size: 0x340 and states: 0x7 > (XEN) Speculative mitigation facilities: > (XEN) Hardware hints: > (XEN) Hardware features: IBPB IBRS STIBP SSBD L1D_FLUSH > (XEN) Compiled-in support: INDIRECT_THUNK SHADOW_PAGING > (XEN) Xen settings: BTI-Thunk RETPOLINE, SPEC_CTRL: IBRS- STIBP- SSBD-,= Other: IBPB L1D_FLUSH BRANCH_HARDEN > (XEN) L1TF: believed vulnerable, maxphysaddr L1D 46, CPUID 36, Safe add= ress 1000000000 > (XEN) Support for HVM VMs: MSR_SPEC_CTRL RSB EAGER_FPU > (XEN) Support for PV VMs: MSR_SPEC_CTRL RSB EAGER_FPU > (XEN) XPTI (64-bit PV only): Dom0 enabled, DomU enabled (without PCID) > (XEN) PV L1TF shadowing: Dom0 disabled, DomU disabled > (XEN) Using scheduler: SMP Credit Scheduler rev2 (credit2) > (XEN) Initializing Credit2 scheduler > (XEN) Platform timer is 14.318MHz HPET > (XEN) Detected 3092.988 MHz processor. > (XEN) Intel VT-d iommu 0 supported page sizes: 4kB > (XEN) Intel VT-d iommu 1 supported page sizes: 4kB > (XEN) Intel VT-d Snoop Control not enabled. > (XEN) Intel VT-d Dom0 DMA Passthrough not enabled. > (XEN) Intel VT-d Queued Invalidation enabled. > (XEN) Intel VT-d Interrupt Remapping enabled. > (XEN) Intel VT-d Posted Interrupt not enabled. > (XEN) Intel VT-d Shared EPT tables not enabled. > (XEN) I/O virtualisation enabled > (XEN) - Dom0 mode: Relaxed > (XEN) Interrupt remapping enabled > (XEN) Enabled directed EOI with ioapic_ack_old on! > (XEN) ENABLING IO-APIC IRQs > (XEN) -> Using old ACK method > (XEN) Allocated console ring of 16 KiB. > (XEN) VMX: Supported advanced features: > (XEN) - APIC MMIO access virtualisation > (XEN) - APIC TPR shadow > (XEN) - Extended Page Tables (EPT) > (XEN) - Virtual-Processor Identifiers (VPID) > (XEN) - Virtual NMI > (XEN) - MSR direct-access bitmap > (XEN) - Unrestricted Guest > (XEN) HVM: ASIDs enabled. > (XEN) VMX: Disabling executable EPT superpages due to CVE-2018-12207 > (XEN) HVM: VMX enabled > (XEN) HVM: Hardware Assisted Paging (HAP) detected > (XEN) HVM: HAP page sizes: 4kB, 2MB > (XEN) Brought up 4 CPUs > (XEN) Scheduling granularity: cpu, 1 CPU per sched-resource > (XEN) Dom0 has maximum 440 PIRQs > (XEN) Bogus DMIBAR 0xfed18001 on 0000:00:00.0 > (XEN) WARNING: PVH is an experimental mode with limited functionality > (XEN) Initial low memory virq threshold set at 0x4000 pages. > (XEN) Scrubbing Free RAM in background > (XEN) Std. Loglevel: Errors and warnings > (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings) > (XEN) Xen is relinquishing VGA console. > (XEN) *** Serial input to DOM0 (type 'CTRL-a' three times to switch input= ) > (XEN) Freed 600kB init memory > ---<>--- > Copyright (c) 1992-2021 The FreeBSD Project. > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 > The Regents of the University of California. All rights reserved. > FreeBSD is a registered trademark of The FreeBSD Foundation. > FreeBSD 13.1-STABLE #0 stable/13-984a45d77: Sat Jun 4 07:38:09 PDT 2022 > buhrow@fbsd_dev.nfbcal.org:/usr/home/buhrow/obj/usr/home/buhrow/src/f= bsd-src/13/amd64.amd64/sys/GENERIC amd64 > FreeBSD clang version 13.0.0 (git@github.com:llvm/llvm-project.git llvmor= g-13.0.0-0-gd7b669b3a303) > VT(vga): text 80x25 > XEN: Hypervisor version 4.16 detected. > CPU microcode: no matching update found > CPU: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz (3092.99-MHz K8-class CPU) > Origin=3D"GenuineIntel" Id=3D0x206a7 Family=3D0x6 Model=3D0x2a Step= ping=3D7 > Features=3D0x1fc3fbff > Features2=3D0x9fba2203 > AMD Features=3D0x28100800 > AMD Features2=3D0x1 > Structured Extended Features3=3D0x9c000000 > XSAVE Features=3D0x1 > AMD Extended Feature Extensions ID EBX=3D0x101000 > Hypervisor: Origin =3D "XenVMMXenVMM" > real memory =3D 9725026304 (9274 MB) > avail memory =3D 8273047552 (7889 MB) > Event timer "LAPIC" quality 100 > ACPI APIC Table: > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs > FreeBSD/SMP: 1 package(s) x 2 core(s) > random: unblocking device. > ioapic0 irqs 0-23 > Launching APs: 1 > random: entropy device external interface > kbd1 at kbdmux0 > vtvga0: > smbios0: at iomem 0xf0480-0xf049e > smbios0: Version: 2.6, BCD Revision: 2.6 > aesni0: > acpi0: > acpi0: Power Button (fixed) > attimer0: port 0x40-0x43 irq 0 on acpi0 > Timecounter "i8254" frequency 1193182 Hz quality 0 > Event timer "i8254" frequency 1193182 Hz quality 100 > atrtc0: port 0x70-0x71 irq 8 on acpi0 > atrtc0: registered as a time-of-day clock, resolution 1.000000s > Event timer "RTC" frequency 32768 Hz quality 0 > hpet0: iomem 0xfed00000-0xfed003ff on acpi0 > hpet0: memory region width 1024 too small for 32 timers > device_attach: hpet0 attach returned 6 > Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 > acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 > pcib0: port 0xcf8-0xcff on acpi0 > pci0: on pcib0 > [ ... At this point, the system hangs, needing a hard reset ...] Interesting. I don't seem to be able to reproduce the hang, so I will need a bit more data from your side in order to debug. When the system hangs, can you switch to the Xen console (Ctrl-A x3 on the serial) and then press the 'd' key and paste the output here? If possible also upload your kernel.debug somewhere, so I can get the symbols (it's in /usr/lib/debug/boot/kernel/kernel.debug) Alternatively you can also try to find the commit that broke it, by using 'git bisect' between 13.1 RELEASE and current stable/13. 13.1 is fairly new, so there shouldn't be many bisection steps to figure out the wrong commit. Thanks, Roger.