Here is the email that contained the basic information to go with the screenshots, not sure how it got lost on the way to the mailing list. I'm pasting in a dmesg log, in case attachments are causing a problem. Without a reproduction case I don't expect anyone to do anything about it; it was just a data point.
-------- Original Message -------- Subject: panic report From: <[email protected]> Date: Thu, April 23, 2020 5:52 pm To: "[email protected]" <[email protected]> Generic 6.6 i386 running in VirtualBox on Windows 10 AMD 3990. Shortly after starting my first attempt to build a kernel it hit a panic. It did not repeat after rebooting and make clean. I was building a kernel so I could start investigating two little things myself: If you switch to the second virtual terminal, then back to the first, the background color is changed to dark red, as seen in the screenshots. clock_getres() reports a resolution of 10 milliseconds, but the returned times actually have nanosecond resolution.-- -------- Original Message -------- Subject: Re: panic report From: Stuart Henderson <[email protected]> Date: Fri, April 24, 2020 3:19 am To: [email protected] Cc: "[email protected]" <[email protected]> On 2020/04/23 17:52, [email protected] wrote: [ for the benefit of people who didn't bother opening images from an email with no information, this is a set of screenshots from VirtualBox with a reaper panic, "pmap_remove_ptes_86: unmanaged page marked PG_PVLIST", reaper->uvm_exit->uvmspace_free->uvm_map_teardown-> uvm_unmap_kill_entry->pmap_remove->pmap_do_remove_86-> pmap_remove_ptes_86->panic ] There is not enough information in this report to be useful. No dmesg, no clues about what the machine was doing at the time, no details about which version of OpenBSD or which arch. Please review https://www.openbsd.org/report.html and include at least most of the information requested.. ------------- OpenBSD 6.6 (GENERIC) #298: Sat Oct 12 11:06:10 MDT 2019 [email protected]:/usr/src/sys/arch/i386/compile/GENERIC real mem = 1073168384 (1023MB) avail mem = 1037938688 (989MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: date 06/23/99, BIOS32 rev. 0 @ 0xfda00, SMBIOS rev. 2.5 @ 0xe1000 (10 entries) bios0: vendor innotek GmbH version "VirtualBox" date 12/01/2006 bios0: innotek GmbH VirtualBox acpi0 at bios0: ACPI 4.0 acpi0: sleep states S0 S5 acpi0: tables DSDT FACP SSDT acpi0: wakeup devices acpitimer0 at acpi0: 3579545 Hz, 32 bits acpiprt0 at acpi0: bus 0 (PCI0) "PNP0A03" at acpi0 not configured acpiac0 at acpi0: AC unit online acpivideo0 at acpi0: GFX0 bios0: ROM list: 0xc0000/0x8000 0xe2000/0xd400 cpu0 at mainbus0: (uniprocessor) cpu0: AMD Eng Sample: 100-000000163-01_43/29_Y ("AuthenticAMD" 686-class, 512KB L2 cache) 2.93 GHz, 17-31-00 cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,RDRAND,MMXX,FFXSR,RDTSCP,LAHF,AMCR8,ABM,SSE4A,MASSE,3DNOWP,ITSC,FSGSBASE,AVX2,RDSEED,CLFLUSHOPT mtrr: CPU supports MTRRs but not enabled by BIOS cpu0: mwait min=64, max=64 pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02 pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00 pciide0 at pci0 dev 1 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: <VBOX HARDDISK> wd0: 128-sector PIO, LBA, 16384MB, 33554432 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <VBOX, CD-ROM, 1.0> removable cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 vga1 at pci0 dev 2 function 0 "VMware SVGA II" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) em0 at pci0 dev 3 function 0 "Intel 82540EM" rev 0x02: irq 9, address 08:00:27:a8:9a:1d "InnoTek VirtualBox Guest Service" rev 0x00 at pci0 dev 4 function 0 not configured auich0 at pci0 dev 5 function 0 "Intel 82801AA AC97" rev 0x01: irq 11, ICH ac97: codec id 0x83847600 (SigmaTel STAC9700) audio0 at auich0 ohci0 at pci0 dev 6 function 0 "Apple Intrepid USB" rev 0x00: irq 10, version 1.0 piixpm0 at pci0 dev 7 function 0 "Intel 82371AB Power" rev 0x08: irq 9 iic0 at piixpm0 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 usb0 at ohci0: USB revision 1.0 uhub0 at usb0 configuration 1 interface 0 "Apple OHCI root hub" rev 1.00/1.00 addr 1 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (1cd2ea98eecfc574.a) swap on wd0b dump on wd0b
