Date: Mon, 22 Apr 2024 20:50:01 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 278535] bhyve: occasional long delays during boot Message-ID: <bug-278535-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278535 Bug ID: 278535 Summary: bhyve: occasional long delays during boot Product: Base System Version: 15.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: lexi.freebsd@le-fay.org when testing on bhyve, i've noticed that the kernel will sometimes hang dur= ing boot. console output: ?cLoading kernel... /boot/kernel/kernel text=3D0x1852c8 text=3D0xec48a8 text=3D0x4852bc data=3D= 0x180+0xe80 data=3D0x199700+0x466900 0x8+0x19db08+0x8+0x1c80cb| Loading configured modules... /etc/hostid size=3D0x25 /boot/entropy size=3D0x1000 Hit [Enter] to boot immediately, or any other key for command prompt. Booting [/boot/kernel/kernel]... staging 0xb4000000 (not copying) tramp 0xbe278000 PT4 0xbe26f000 Start @ 0xffffffff80386000 ... GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb ---<<BOOT>>--- Copyright (c) 1992-2024 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 15.0-CURRENT #3 lf/bridge-inet-n269607-75357a4ae2c4: Mon Apr 22 20:24:11 BST 2024 =20=20=20 lexi@ilythia.eden.le-fay.org:/src/obj/src/freebsd/src/bridge-inet/amd64.amd= 64/sys/GENERIC amd64 FreeBSD clang version 18.1.4 (https://github.com/llvm/llvm-project.git llvmorg-18.1.4-0-ge6c3289804a6) WARNING: WITNESS option enabled, expect reduced performance. VT: init without driver. CPU: AMD Ryzen 7 5800X3D 8-Core Processor (3541.95-MHz K8-class = CPU) Origin=3D"AuthenticAMD" Id=3D0xa20f12 Family=3D0x19 Model=3D0x21 Step= ping=3D2 =20 Features=3D0x1783fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,= MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE,SSE2,HTT> =20 Features2=3D0xfed83203<SSE3,PCLMULQDQ,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,PO= PCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND,HV> AMD Features=3D0x26500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,LM> AMD Features2=3D0x444231fb<LAHF,CMP,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,SKINIT,W= DT,TCE,Topology,DBE,ADMSKX> Structured Extended Features=3D0x201403a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,RDSEED,SMAP,SHA> Structured Extended Features2=3D0x600<VAES,VPCLMULQDQ> XSAVE Features=3D0x1<XSAVEOPT> AMD Extended Feature Extensions ID EBX=3D0x7<CLZERO,IRPerf,XSaveErPtr> TSC: P-state invariant Hypervisor: Origin =3D "bhyve bhyve " real memory =3D 8589934592 (8192 MB) avail memory =3D 8256217088 (7873 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <BHYVE BVAPIC > FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs FreeBSD/SMP: 4 package(s) x 1 core(s) random: registering fast source Intel Secure Key RNG random: fast provider: "Intel Secure Key RNG" random: unblocking device. ioapic0 <Version 1.1> irqs 0-31 Launching APs: 3 2 1 [hang here...] the VM does eventually recover, after several minutes, and finishes booting= .=20 however when this happens, the boot is very slow -- in the case i just noti= ced, it took about 15 minutes to boot to a multiuser login prompt. this may be related to high CPU load on the host, since i normally use bhyve when working on src, so i'm testing and building at the same time. i have = not noticed this issue on production bhyve instances where the host is mostly i= dle. host: FreeBSD 15.0-CURRENT #29 lf/main-n269030-a8c2ee4fe736: Thu Apr 18 19:57:54 BST 2024=20=20=20=20 srcmastr@daphne.eden.le-fay.org:/src/obj/src/freebsd/lf/main/amd64.amd64/sy= s/LF guest: FreeBSD 15.0-CURRENT #3 lf/bridge-inet-n269607-75357a4ae2c4: Mon Apr= 22 20:24:11 BST 2024=20=20=20=20 lexi@ilythia.eden.le-fay.org:/src/obj/src/freebsd/src/bridge-inet/amd64.amd= 64/sys/GENERIC --=20 You are receiving this mail because: You are the assignee for the bug.=
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