DF-5044 / run.4.log
pci0.1: hardreset failed to clear
pci0.1: No device detected
DF5044: port 1 helper thread up and parked (thread=0xfffff8008e11ce00)
DF5044: WEDGE: ap_lock held forever (norelease mode)
DF5044: NORELEASE: starting stopper against a permanently wedged helper thread (baseline kernel: expect spin-forever; fixed kernel: expect return after the bound)
DF5044: STOPPER: calling real sili_os_stop_port(0xfffff8008f9dbf00) with the helper thread wedged on ap_lock
pci0.1: Waiting for thread to terminate
DF5044: NORELEASE: 1 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 2 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 3 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 4 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 5 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 6 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 7 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 8 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 9 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 10 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 11 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 12 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 13 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 14 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 15 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 16 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 17 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: 18 x 5s, stopper STILL SPINNING (ap_thread=0xfffff8008e11ce00)
DF5044: NORELEASE: observation window closed after 90s; module unloads, wedge/stopper threads stay (leaked by design until reboot)
boot() called on cpu#0
Waiting (max 60 seconds) for system thread swapcached to stop...stopped
Waiting (max 60 seconds) for system thread vnlru to stop...stopped
Waiting (max 60 seconds) for system thread consttyd to stop...stopped
Waiting (max 60 seconds) for system thread bufdaemon to stop...stopped
Waiting (max 60 seconds) for system thread bufdaemon_hw to stop...stopped
syncing disks... 0 0 0
done
v-chain 0xfffff8008fb604c0 volume.0 0000000000000010 0000000000000000/0 mir=00000000000000cc
[00002000] (?) refs=1
f-chain 0xfffff8008fb60640 freemap.0 0000000000000010 0000000000000000/0 mir=00000000000000cc
[00002000] (?) refs=1
Uptime: 10m28s
Rebooting...
Copyright (c) 2003-2026 The DragonFly Project.
Copyright (c) 1992-2003 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.
DragonFly 6.5-DEVELOPMENT #1: Sat Sep 26 10:36:11 UTC 2026
root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC
acpi_hpet: frequency 100000000
Using cputimer HPET for TSC calibration
Timer latency (in TSC ticks): 33837 min=32304 max=105374
TSC clock: 3600008675 Hz, NOT invariant
CPU: QEMU Virtual CPU version 2.5+ (3600.01-MHz K8-class CPU)
Origin="GenuineIntel" Id=0x60fb1 Family=0xf Model=0x6b Stepping=1
Features=0x1783fbfd<FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE,SSE2,HTT>
Features2=0x80202001<SSE3,CX16,x2APIC,VMM>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
MONITOR/MWAIT Features=0x2<INTBRK>
VMM/Hypervisor: Origin="KVMKVMKVM"
real memory = 4293381120 (4094 MB)
avail memory = 4088795136 (3899 MB)
LAPIC: enter X2APIC mode
madt_lapic_probe: lapic_count=6 x2apic_count=0
ACPI CPUS = 6
lapic: divisor index 0, frequency 500002954 Hz
CPU Topology: cores_per_chip: 6; threads_per_core: 1; chips_per_package: 1;
srat_probe: can't locate SRAT
SMI Frequency (worst case): 19607 Hz (51 us)
Initialize MI interrupts for 6 cpus
TSC is not invariant, no further tests will be performed
Spectre: support=( none ) req=ffff operating=( none )
MDS: support=( none ) req=ffff operating=( none )
machdep.meltdown_mitigation enabled to protect against (mostly Intel) meltdown bug
system call performance will be impacted
interrupt uses mplock: swi_taskq
wdog: In-kernel automatic watchdog reset enabled
md0: Malloc disk
evdev device loaded.
kbd1 at kbdmux0
ACPI: RSDP 0x00000000000F59A0 000014 (v00 BOCHS )
ACPI: RSDT 0x00000000BFFE1CAC 000034 (v01 BOCHS BXPC 00000001 BXPC 00000001)
ACPI: FACP 0x00000000BFFE1B38 000074 (v01 BOCHS BXPC 00000001 BXPC 00000001)
ACPI: DSDT 0x00000000BFFE0040 001AF8 (v01 BOCHS BXPC 00000001 BXPC 00000001)
ACPI: FACS 0x00000000BFFE0000 000040
ACPI: APIC 0x00000000BFFE1BAC 0000A0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
ACPI: HPET 0x00000000BFFE1C4C 000038 (v01 BOCHS BXPC 00000001 BXPC 00000001)
ACPI: WAET 0x00000000BFFE1C84 000028 (v01 BOCHS BXPC 00000001 BXPC 00000001)
sc0: <System console> on motherboard
sc0: VGA <16 virtual consoles, flags=0x100>
acpi0: <BOCHS BXPC> on motherboard
ACPI: 1 ACPI AML tables successfully acquired and loaded
ACPI FADT: SCI testing interrupt mode ...
ACPI FADT: SCI select level/high
acpi0: Power Button (fixed)
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
acpi_timer0 on acpi0
isab0: <ACPI Generic ISA bridge> on acpi0
isa0: <ISA bus> on isab0
cpu0: <ACPI CPU> on acpi0
cpu_cst0: <ACPI CPU C-State> on cpu0
cpu1: <ACPI CPU> on acpi0
cpu_cst1: <ACPI CPU C-State> on cpu1
cpu2: <ACPI CPU> on acpi0
cpu_cst2: <ACPI CPU C-State> on cpu2
cpu3: <ACPI CPU> on acpi0
cpu_cst3: <ACPI CPU C-State> on cpu3
cpu4: <ACPI CPU> on acpi0
cpu_cst4: <ACPI CPU C-State> on cpu4
cpu5: <ACPI CPU> on acpi0
cpu_cst5: <ACPI CPU C-State> on cpu5
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
isab1: <PCI-ISA bridge> at device 1.0 on pci0
isa1: <ISA bus> on isab1
atapci0: <Intel PIIX3 WDMA2 controller> port 0xc0a0-0xc0af,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 1.1 on pci0
ata0: <ATA channel 0> on atapci0
interrupt uses mplock: ata0
ata1: <ATA channel 1> on atapci0
interrupt uses mplock: ata1
acd0: DVDROM <QEMU DVD-ROM/2.5+> at ata1-master WDMA2
pci0: <bridge> (vendor 0x8086, dev 0x7113) at device 1.3 irq 9
vgapci0: <VGA-compatible display> mem 0xfebd0000-0xfebd0fff,0xfd000000-0xfdffffff at device 2.0 on pci0
vgapci0: Boot video device
virtio_pci0: <VirtIO PCI Network adapter> port 0xc080-0xc09f mem 0xfe000000-0xfe003fff,0xfebd1000-0xfebd1fff irq 11 at device 3.0 on pci0
vtnet0: <VirtIO Networking Adapter> on virtio_pci0
virtio_pci0: host features: 0x79bf8064 <EventIdx,RingIndirect,AnyLayout,NotifyOnEmpty,SetMacAddress,GuestAnnounce,RxModeExtra,VLanFilter,RxMode,ControlVq,Status,MrgRxBuf,TxAllGSO,MacAddress,DynOffload>
virtio_pci0: negotiated features: 0x198f8020 <RingIndirect,AnyLayout,NotifyOnEmpty,SetMacAddress,VLanFilter,RxMode,ControlVq,Status,MrgRxBuf,MacAddress>
virtio_pci0: using 3 MSI-X vectors
vtnet0: MAC address: 52:54:00:12:34:56
virtio_pci1: <VirtIO PCI Block adapter> port 0xc000-0xc07f mem 0xfe004000-0xfe007fff,0xfebd2000-0xfebd2fff irq 11 at device 4.0 on pci0
vtblk0: <VirtIO Block Adapter> on virtio_pci1
virtio_pci1: host features: 0x79007e54 <EventIdx,RingIndirect,AnyLayout,NotifyOnEmpty,WriteZeroes,Discard,MultiQueue,ConfigWCE,Topology,FlushCommand,BlockSize,DiskGeometry,MaxNumSegs>
virtio_pci1: negotiated features: 0x10001a54 <RingIndirect,MultiQueue,ConfigWCE,FlushCommand,BlockSize,DiskGeometry,MaxNumSegs>
virtio_pci1: using 6 MSI-X vectors
vtblk0: Virtio: ncylinders at legacy maximum (16383), recalculating to 62415
vtblk0: Block size: 512
vtblk0: 30720MB (62914560 512 byte sectors: 16H 63S/T 16383C)
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
interrupt uses mplock: psm0
psm0: model IntelliMouse Explorer, device ID 4
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A, console
ACPI: Enabled 2 GPEs in block 00 to 0F
rdrand0: No RdRand support.
orm0: <ISA Option ROM> at iomem 0xe8000-0xeffff on isa1
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa1
sio2: can't drain, serial port might not exist, disabling
hpt27xx: no controller detected.
CAM: Configuring 2 busses
CAM: finished configuring all busses
cd0 at ata1 bus 0 target 0 lun 0
cd0: <QEMU QEMU DVD-ROM 2.5+> Removable CD-ROM SCSI-0 device
cd0: 16.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
Mounting root from hammer2:vbd0s1d
hammer2_mount: root devstr="vbd0s1d"
hammer2_mount: device="vbd0s1d" label="ROOT" rdonly=1
hammer2_ondisk: "/dev/vbd0s1d" zone=1 id=0 offset=0x0000000000000000 size=0x000000063f000000
hammer2_mount: hmp=0xfffff8008fae0000 pmp=0xfffff80090280000
DMA space used: 13580k, remaining available: 131072k
Mounting devfs
hammer2_mount: "vbd0s1d": no recovery needed
hammer2: enable read/write
HAMMER2: VOLDATA DUMP
HAMMER2: INITIATE SPANs
swap low/high-water marks set to 41940/62910
pci0.0: hardreset failed to clear
pci0.1: hardreset failed to clear
pci0.0: No device detected
DF5044: port 0 helper thread up and parked (thread=0xfffff8008d311e80)
DF5044: port 1 helper thread up and parked (thread=0xfffff8008d312500)
DF5044: E1: normal sili_os_stop_port(port0)...
DF5044: E1: returned (thread=0)
DF5044: E2: wedging helper thread: holding ap_lock, then signalling AP_SIGF_TIMEOUT so the thread blocks in sili_port_thread_core()->sili_os_lock_port()
DF5044: STOPPER: calling real sili_os_stop_port(0xfffff8011745f100) with the helper thread wedged on ap_lock
pci0.1: Waiting for thread to terminate
DF5044: WATCHDOG 1/3: stopper STILL spinning in sili_os_stop_port wait loop after 5 seconds (ap_thread=0xfffff8008d312500 != NULL, no bound, no force-kill)
DF5044: WATCHDOG 2/3: stopper STILL spinning in sili_os_stop_port wait loop after 10 seconds (ap_thread=0xfffff8008d312500 != NULL, no bound, no force-kill)
DF5044: WATCHDOG 3/3: stopper STILL spinning in sili_os_stop_port wait loop after 15 seconds (ap_thread=0xfffff8008d312500 != NULL, no bound, no force-kill)
DF5044: E2: releasing the wedge after >= 15s of proven unbounded spinning
pci0.1: thread terminated
DF5044: STOPPER: sili_os_stop_port RETURNED
DF5044: E2: PROVEN: sili_os_stop_port spun >= 15s purely because the helper thread was blocked; on a real unload/shutdown nobody releases the wedge => permanent hang (DF-5044)
DF5045: E3: calling sili_os_stop_port() on a port whose ap_lock was NEVER lockinit'ed (the sili_port_alloc error-unwind shape)
DF5045: E3: returned M-bM^@M^T lockuninit(&ap_lock) executed on the uninitialized zeroed lock (benign only because M_ZERO makes lk_count==0); ap_sim_lock/ap_sig_lock/ap_ccb_lock are never uninited on any path (DF-5045)
DF5044: cleanup done, guest still healthy