KDB: debugger backends: ddb
KDB: current backend: ddb
---<<BOOT>>---
Copyright (c) 1992-2020 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 13.0-CURRENT #0 r365951: Mon Sep 21 18:51:53 CEST 2020
    pho@x4.osted.lan:/usr/src/sys/i386/compile/PHO i386
FreeBSD clang version 10.0.1 (git@github.com:llvm/llvm-project.git llvmorg-10.0.1-rc2-0-g77d76b71d7d)
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: DIAGNOSTIC option enabled, expect reduced performance.
VT(vga): resolution 640x480
CPU: AMD Phenom(tm) 9150e Quad-Core Processor (1800.02-MHz 686-class CPU)
  Origin="AuthenticAMD"  Id=0x100f23  Family=0x10  Model=0x2  Stepping=3
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x802009<SSE3,MON,CX16,POPCNT>
  AMD Features=0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+,3DNow!>
  AMD Features2=0x7ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS>
  SVM: NP,NAsids=64
  TSC: P-state invariant
real memory  = 8589934592 (8192 MB)
avail memory = 3521953792 (3358 MB)
Event timer "LAPIC" quality 100
ACPI APIC Table: <060508 APIC1048>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s)
arc4random: WARNING: initial seeding bypassed the cryptographic random device because it was not yet seeded and the knob 'bypass_before_seeding' was enabled.
ioapic0 <Version 2.1> irqs 0-23
Launching APs: 1 3 2
Timecounter "TSC" frequency 1800017268 Hz quality 800
random: entropy device external interface
[ath_hal] loaded
WARNING: Device "kbd" is Giant locked and may be deleted before FreeBSD 13.0.
kbd1 at kbdmux0
nexus0
vtvga0: <VT VGA driver>
cryptosoft0: <software crypto>
acpi0: <060508 RSDT1048>
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <AT realtime clock> 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
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0xc000-0xc0ff mem 0xf0000000-0xf7ffffff,0xfe9f0000-0xfe9fffff,0xfe800000-0xfe8fffff irq 18 at device 5.0 on pci1
vgapci0: Boot video device
hdac0: <ATI RS690 HDA Controller> mem 0xfe9e8000-0xfe9ebfff irq 19 at device 5.2 on pci1
pcib2: <ACPI PCI-PCI bridge> at device 7.0 on pci0
pci2: <ACPI PCI bus> on pcib2
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port 0xd800-0xd8ff mem 0xfeaff000-0xfeafffff irq 19 at device 0.0 on pci2
re0: Using 1 MSI message
re0: Chip rev. 0x38000000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 00:21:85:15:33:7d
ahci0: <AMD SB600 AHCI SATA controller> port 0xb000-0xb007,0xa000-0xa003,0x9000-0x9007,0x8000-0x8003,0x7000-0x700f mem 0xfe7ff800-0xfe7ffbff irq 22 at device 18.0 on pci0
ahci0: AHCI v1.10 with 4 3Gbps ports, Port Multiplier supported
ahci0: quirks=0x7000<NOMSI,ATI_PMP_BUG,MAXIO_64K>
ahcich0: <AHCI channel> at channel 0 on ahci0
ahcich1: <AHCI channel> at channel 1 on ahci0
ahcich2: <AHCI channel> at channel 2 on ahci0
ahcich3: <AHCI channel> at channel 3 on ahci0
ohci0: <OHCI (generic) USB controller> mem 0xfe7fe000-0xfe7fefff irq 16 at device 19.0 on pci0
usbus0 on ohci0
usbus0: 12Mbps Full Speed USB v1.0
ohci1: <OHCI (generic) USB controller> mem 0xfe7fd000-0xfe7fdfff irq 17 at device 19.1 on pci0
usbus1 on ohci1
usbus1: 12Mbps Full Speed USB v1.0
ohci2: <OHCI (generic) USB controller> mem 0xfe7fc000-0xfe7fcfff irq 18 at device 19.2 on pci0
usbus2 on ohci2
usbus2: 12Mbps Full Speed USB v1.0
ohci3: <OHCI (generic) USB controller> mem 0xfe7fb000-0xfe7fbfff irq 17 at device 19.3 on pci0
usbus3 on ohci3
usbus3: 12Mbps Full Speed USB v1.0
ohci4: <OHCI (generic) USB controller> mem 0xfe7fa000-0xfe7fafff irq 18 at device 19.4 on pci0
usbus4 on ohci4
usbus4: 12Mbps Full Speed USB v1.0
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xfe7ff000-0xfe7ff0ff irq 19 at device 19.5 on pci0
ehci0: AMD SB600/700 quirk applied
usbus5: EHCI version 1.0
usbus5 on ehci0
usbus5: 480Mbps High Speed USB v2.0
atapci0: <ATI IXP600 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xff00-0xff0f at device 20.1 on pci0
ata0: <ATA channel> at channel 0 on atapci0
hdac1: <ATI SB600 HDA Controller> mem 0xfe7f4000-0xfe7f7fff irq 16 at device 20.2 on pci0
isab0: <PCI-ISA bridge> at device 20.3 on pci0
isa0: <ISA bus> on isab0
pcib3: <ACPI PCI-PCI bridge> at device 20.4 on pci0
pci3: <ACPI PCI bus> on pcib3
pci3: <serial bus, FireWire> at device 6.0 (no driver attached)
acpi_button0: <Power Button> on acpi0
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: console (115200,n,8,1)
fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc0: parallel port not found.
hwpstate0: <Cool`n'Quiet 2.0> on cpu0
NULL mp in getnewvnode(9), tag crossmp
Timecounters tick every 1.000 msec
ugen1.1: <ATI OHCI root HUB> at usbus1
ugen2.1: <ATI OHCI root HUB> at usbus2
ugen0.1: <ATI OHCI root HUB> at usbus0
uhub0ugen3.1: <ATI OHCI root HUB> at usbus3
 on usbus1
uhub1 on usbus3
uhub2 on usbus0
uhub3 on usbus2
uhub1: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus3
uhub3: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
uhub0: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen4.1: <ATI OHCI root HUB> at usbus4
uhub2: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen5.1: <ATI EHCI root HUB> at usbus5
uhub4 on usbus4
uhub4: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
hdacc0: <ATI RS690/780 HDA CODEC> at cad 0 on hdac0
hdaa0: <ATI RS690/780 Audio Function Group> at nid 1 on hdacc0
pcm0: <ATI RS690/780 (Digital)> at nid 3 on hdaa0
hdacc1: <Realtek ALC888 HDA CODEC> at cad 3 on hdac1
hdaa1: <Realtek ALC888 Audio Function Group> at nid 1 on hdacc1
pcm1: <Realtek ALC888 (Rear Analog 7.1/2.0)> at nid 20,22,21,23 and 24,26 on hdaa1
pcm2: <Realtek ALC888 (Front Analog)> at nid 27 and 25 on hdaa1
pcm3: <Realtek ALC888 (Digital)> at nid 30 on hdaa1
Trying to mount root from ufs:/dev/ada0s1a [rw]...
Root mount waiting for: CAMWARNING: WITNESS option enabled, expect reduced performance.
 usbus0 usbus1WARNING: DIAGNOSTIC option enabled, expect reduced performance.
 usbus2 usbus3 usbus4 usbus5uhub5 on usbus5

uhub5: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus5
(aprobe0:ahcich0:0:15:0): NOP FLUSHQUEUE. ACB: 00 00 00 00 00 00 00 00 00 00 00 00
Expensive timeout(9) function: 0xa3c850(0x18b32000) 0.009299226 s
(aprobe0:ahcich0:0:15:0): CAM status: Command timeout
(aprobe0:ahcich0:0:15:0): Error 5, Retries exhausted
uhub0: 2 ports with 2 removable, self powered
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <ST3500418AS CC38> ATA8-ACS SATA 2.x device
ada0: Serial Number 9VMJ99G5
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 476940MB (976773168 512 byte sectors)
uhub1: 2 ports with 2 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub2: 2 ports with 2 removable, self powered
uhub4: 2 ports with 2 removable, self powered
Root mount waiting for: usbus5
Root mount waiting for: usbus5
Root mount waiting for: usbus5
Root mount waiting for: usbus5
uhub5: 10 ports with 10 removable, self powered
mountroot: waiting for device /dev/ada0s1a...
random: unblocking device.
WARNING: / was not properly dismounted
Setting hostuuid: 00000000-0000-0000-0000-00218515337d.
Setting hostid: 0x6b64ac17.
warning: total configured swap (4194304 pages) exceeds maximum recommended amount (2009952 pages).
warning: increase kern.maxswzone or reduce amount of swap.
Starting file system checks:
/dev/ada0s1a: 7922 files, 403701 used, 609314 free (2122 frags, 75899 blocks, 0.2% fragmentation)
/dev/ada0s1f: 18331 files, 235019 used, 777996 free (12012 frags, 95748 blocks, 1.2% fragmentation)
/dev/ada0s1d: 555671 files, 9129856 used, 1024343 free (362887 frags, 82682 blocks, 3.6% fragmentation)
** SU+J Recovering /dev/ada0s1e
** Reading 33554432 byte journal from inode 6.
** Building recovery table.
** Resolving unreferenced inode list.
** Processing journal entries.
** 18931 journal records in 652288 bytes for 92.87% utilization
** Freed 1 inodes (0 dirs) 18760 blocks, and 0 frags.

***** FILE SYSTEM MARKED CLEAN *****
/dev/label/tmp: 727383 files, 83696385 used, 34617596 free (26036 frags, 4323945 blocks, 0.0% fragmentation)
Mounting local filesystems:.
ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib /usr/local/lib/compat/pkg /usr/local/arduino/lib /usr/local/lib/compat /usr/local/lib/compat/pkg /usr/local/lib/e2fsprogs /usr/local/lib/gcc7 /usr/local/lib/gcc8 /usr/local/lib/mysql /usr/local/lib/nss /usr/local/lib/perl5/5.28/mach/CORE /usr/local/lib/pth /usr/local/lib/qt4 /usr/local/lib/qt5 /usr/local/llvm37/lib /usr/local/llvm39/lib
a.out ldconfig path: /usr/lib/aout /usr/lib/compat/aout
ldconfig: aout support is deprecated
Setting hostname: x4.osted.lan.
Setting up harvesting: [UMA],[FS_ATIME],SWI,INTERRUPT,NET_NG,[NET_ETHER],NET_TUN,MOUSE,KEYBOARD,ATTACH,CACHED
Feeding entropy: .
lo0: link state changed to UP
re0: link state changed to DOWN
Starting Network: lo0 re0.
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
	options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
	inet6 ::1 prefixlen 128
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
	inet 127.0.0.1 netmask 0xff000000
	groups: lo
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
	ether 00:21:85:15:33:7d
	inet 192.168.1.101 netmask 0xffffff00 broadcast 192.168.1.255
	media: Ethernet autoselect (none)
	status: no carrier
	nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
Starting devd.
add host 127.0.0.1: gateway lo0 fib 0: route already in table
add net default: gateway 192.168.1.254
add host ::1: gateway lo0 fib 0: route already in table
add net fe80::: gateway ::1
add net ff02::: gateway ::1
add net ::ffff:0.0.0.0: gateway ::1
add net ::0.0.0.0: gateway ::1
Creating and/or trimming log files.
Starting syslogd.
Starting rpcbind.
NFS access cache time=60
Starting watchdogd.
No core dumps found.
Clearing /tmp (X related).
Starting nfsuserd.
Starting mountd.
Starting nfsd.
Starting statd.
Starting lockd.
Recovering vi editor sessions:.
Updating motd:.
Mounting late filesystems:.
Starting ntpd.
Starting powerd.
Starting smartd.
Nov  1 18:19:34 x4 smartd[622]: Device: /dev/ada0, WARNING: A firmware update for this drive may be available,
Nov  1 18:19:34 x4 smartd[622]: see the following Seagate web pages:
Nov  1 18:19:34 x4 smartd[622]: http://knowledge.seagate.com/articles/en_US/FAQ/207931en
Nov  1 18:19:34 x4 smartd[622]: http://knowledge.seagate.com/articles/en_US/FAQ/213891en
Configuring vt: keymap blanktime.
Performing sanity check on sshd configuration.
Starting sshd.
Starting sendmail_submit.
Starting sendmail_msp_queue.
Nov  1 18:19:39 x4 sm-mta[667]: 0A1HJd7n000666: low on space (SMTP-DAEMON needs 0 bytes + 100 blocks in /var/spool/mqueue), max avail: 0
panic: bio_completed can't be less than 0
cpuid = 1
time = 1604251179
KDB: stack backtrace:
db_trace_self_wrapper(e5fcfc,1a55188,0,250133ec,bd1f80,...) at db_trace_self_wrapper+0x2a/frame 0x250133c0
kdb_backtrace(d,25013450,fbc207,ffffffff,1a97d9b4,...) at kdb_backtrace+0x2e/frame 0x25013420
vpanic(1466457,25013460,25013460,25013490,f31872,...) at vpanic+0x11f/frame 0x25013440
panic(1466457,0,9a99380,fbc207,1a4f5d00,...) at panic+0x14/frame 0x25013454
g_io_deliver(1a97d9b4,0) at g_io_deliver+0x322/frame 0x25013490
g_disk_done(1a9e3114,1a9e3114) at g_disk_done+0xf0/frame 0x250134c4
cam_iosched_queue_work(1a969080,1a9e3114) at cam_iosched_queue_work+0xdb/frame 0x250134e0
adastrategy(1a9e3114,200050,24cfa000,25013578,1a97d9b4,...) at adastrategy+0x50/frame 0x250134fc
g_disk_start(1a97d9b4,9a99380,1a4f5d00,f30987,b9e1800,...) at g_disk_start+0x4de/frame 0x25013558
g_io_request(1a97d9b4,9a99380,0,250135d8,127d1c6,...) at g_io_request+0x2b3/frame 0x25013580
g_part_start(21a39cf0,9a99080,9a9a000,f30987,b9e1800,...) at g_part_start+0x26f/frame 0x250135f0
g_io_request(21a39cf0,9a99080,1d9780c,1,41000000,...) at g_io_request+0x2b3/frame 0x25013618
g_part_start(1a9b933c,1,1a989780,218af600,ffffffff,...) at g_part_start+0x26f/frame 0x25013688
g_io_request(1a9b933c,1a4d5e80,1a4d5e80) at g_io_request+0x2b3/frame 0x250136b0
g_vfs_strategy(218100d0,218af600) at g_vfs_strategy+0xf0/frame 0x250136d0
softdep_request_cleanup(1820c000,24eb9000,1a485300,4) at softdep_request_cleanup+0x2b7/frame 0x25013728
ffs_alloc(24ebf000,0,0,579f20,0,800,2050000,1a485300,250137e0) at ffs_alloc+0x2ad/frame 0x25013774
ffs_balloc_ufs2(24eb9000,0,0,31,1a485300,2050000,25013904) at ffs_balloc_ufs2+0xd8b/frame 0x250138a4
ffs_write(25013a08) at ffs_write+0x20f/frame 0x25013924
VOP_WRITE_APV(1aa38d8,25013a08) at VOP_WRITE_APV+0xdf/frame 0x250139e0
vn_write(2183fac8,25013bd0,1a485300,1,24cfa000) at vn_write+0x305/frame 0x25013a3c
vn_io_fault_doio(24cfa000) at vn_io_fault_doio+0x3a/frame 0x25013a84
vn_io_fault1(24cfa000) at vn_io_fault1+0x164/frame 0x25013b34
vn_io_fault(2183fac8,25013bd0,1a485300,0,24cfa000) at vn_io_fault+0x1c4/frame 0x25013b70
dofilewrite(2183fac8,25013bd0,ffffffff,ffffffff,0) at dofilewrite+0x71/frame 0x25013ba4
sys_write(24cfa000,24cfa298,25013cdc,24cfa000,24cfa000,...) at sys_write+0x78/frame 0x25013c08
syscall(25013ce8,3b,3b,3b,20a20000,...) at syscall+0x1ba/frame 0x25013cdc
Xint0x80_syscall() at 0xffc033f9/frame 0x25013cdc
--- syscall (4, FreeBSD ELF32, sys_write), eip = 0xffc01d18, esp = 0xffc0afe8, ebp = 0xffbfd4a8 ---
KDB: enter: panic
[ thread pid 670 tid 100171 ]
Stopped at      kdb_enter+0x35: movl    $0,kdb_why
db> x/s version
version:        FreeBSD 13.0-CURRENT #0 r365951: Mon Sep 21 18:51:53 CEST 2020\012    pho@x4.osted.lan:/usr/src/sys/i386/compile/PHO\012
db> reset