failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/managers/i386/latest.tmp/key" "root@10.128.0.242" "pwd"]: exit status 255 ssh: connect to host 10.128.0.242 port 22: Operation timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-freebsd-i386-test-0 port 1 (session ID: c7c5918696d1adcb89ba454db3c4c44bd3b228f45d8589da3c82a80c7ac8acbf, active connections: 1). SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000080000000 = 2048 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID ced9917b-3dd0-048f-d942-086a49d23637 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=6291456 = 3072 MiB drive 0x000f2430: PCHS=0/0/0 translation=lba LCHS=780/128/63 s=6291456 Sending Seabios boot VM event. Booting from Hard Disk 0... Loading /boot/loader.conf.local -\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/Loading kernel... -\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/boot/kernel/kernel text=0x182738 /-\|/-\|/-\|/text=0x15c2ef0 -\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\text=0x6d0474 |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-data=0x140 data=0x245ee8+0x5b9118 \|/-\|/-\|/-\|/-\|/syms=[0x8+0x1c3470-\|/-\|/-\|/-\+0x8+0x1b2768|/-\|/-\|/-\|/] Loading configured modules... -\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\/boot/kernel/tcp_bbr.ko |/-\|size 0x82d68 at 0x2d76000 /-\|/-\|/-\|/-\/boot/kernel/cc_chd.ko |size 0x5588 at 0x2df9000 loading required module 'ertt' /-\|/-\|/-\|/-\|/-\|//boot/kernel/h_ertt.ko size 0x4080 at 0x2dff000 -\|/-\|/-\|/-\|/boot/kernel/cc_dctcp.ko /size 0x4d30 at 0x2e04000 -\|/-\|/-\|/-\|/-\|/-/boot/kernel/cc_htcp.ko size 0x4ba0 at 0x2e09000 \|/-\|/-\|/-\|//boot/kernel/cc_hd.ko size 0x42e8 at 0x2e0e000 -\|/-\|/-\|/-\|/-\|/boot/kernel/mqueuefs.ko /size 0x16ac8 at 0x2e13000 -\|/-\|/-\|/-\|/boot/kernel/tcp_rack.ko /-\|/-size 0x9a2f8 at 0x2e2a000 \|/-\|/-\|/-\|//boot/kernel/cryptodev.ko -size 0xeb48 at 0x2ec5000 \|/-\|/-\|/-\|//boot/kernel/cc_cubic.ko size 0x4510 at 0x2ed4000 -\|/-\|/-\|/-\|/-\|/boot/kernel/cc_vegas.ko size 0x47d8 at 0x2ed9000 /-\|/-\|/-\|/-\/boot/kernel/cc_cdg.ko size 0x7790 at 0x2ede000 |/-\|/-\|//boot/entropy -size=0x1000 \|/-\|/-\|/-\|//boot/kernel/pf.ko -\|/-\|/-size 0xe9120 at 0x2ee7000 \|/-\|/-\|/-\|//boot/kernel/sem.ko -size 0xb868 at 0x2fd1000 \|/-\|/-\|/-\|//boot/kernel/ipsec.ko -\size 0x42048 at 0x2fdd000 |/-\|/-\|/-\|/-/boot/kernel/sctp.ko \|/-\|/-\|/-\|size 0x1b4d70 at 0x3020000 /-\|/GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb ---<>--- 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 14.0-CURRENT #0 n246698-5365af662c7: Sun May 16 10:34:16 UTC 2021 root@ci-freebsd:/syzkaller/managers/i386/kernel/obj/syzkaller/managers/i386/kernel/amd64.amd64/sys/SYZKALLER amd64 FreeBSD clang version 11.0.1 (git@github.com:llvm/llvm-project.git llvmorg-11.0.1-0-g43ff75f2c3fe) WARNING: WITNESS option enabled, expect reduced performance. WARNING: DIAGNOSTIC option enabled, expect reduced performance. VT(vga): text 80x25 CPU: Intel(R) Xeon(R) CPU @ 2.30GHz (2173.57-MHz K8-class CPU) Origin="GenuineIntel" Id=0x306f0 Family=0x6 Model=0x3f Stepping=0 Features=0x1f83fbff Features2=0xfefa3223 AMD Features=0x2c100800 AMD Features2=0x21 Structured Extended Features=0x27eb Structured Extended Features3=0xac000400 XSAVE Features=0x1 IA32_ARCH_CAPS=0x4c VT-x: PAT,HLT,PAUSE,EPT,UG,VPID TSC: P-state invariant Hypervisor: Origin = "KVMKVMKVM" real memory = 2147483648 (2048 MB) avail memory = 2023092224 (1929 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs FreeBSD/SMP: 1 package(s) x 1 core(s) x 2 hardware threads random: registering fast source Intel Secure Key RNG random: fast provider: "Intel Secure Key RNG" random: unblocking device. ioapic0 irqs 0-23 Launching APs: 1 Timecounter "TSC-low" frequency 1086787174 Hz quality 1000 TCP_ratelimit: Is now initialized random: entropy device external interface WARNING: Device "kbd" is Giant locked and may be deleted before FreeBSD 14.0. kbd1 at kbdmux0 mlx5en: Mellanox Ethernet driver 3.6.0 (December 2020) vtvga0: smbios0: at iomem 0xf24a0-0xf24be smbios0: Version: 2.4, BCD Revision: 2.4 aesni0: acpi0: acpi0: Power Button (fixed) acpi0: Sleep Button (fixed) cpu0: on acpi0 atrtc0: port 0x70-0x71,0x72-0x77 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 0xb008-0xb00b on acpi0 pcib0: port 0xcf8-0xcff on acpi0 pci0: on pcib0 isab0: at device 1.0 on pci0 isa0: on isab0 pci0: at device 1.3 (no driver attached) virtio_pci0: port 0xc000-0xc03f mem 0xfe800000-0xfe80007f irq 11 at device 3.0 on pci0 vtscsi0: on virtio_pci0 panic: scsi_action: ccb 0xffffffff831e9490, func_code 0x6 should not be allocated from UMA zone cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xffffffff831e9340 vpanic() at vpanic+0x1c7/frame 0xffffffff831e93a0 panic() at panic+0x43/frame 0xffffffff831e9400 scsi_dev_async() at scsi_dev_async/frame 0xffffffff831e9440 vtscsi_attach() at vtscsi_attach+0xaf2/frame 0xffffffff831e95a0 device_attach() at device_attach+0x478/frame 0xffffffff831e95e0 vtpci_legacy_probe_and_attach_child() at vtpci_legacy_probe_and_attach_child+0xe7/frame 0xffffffff831e9620 vtpci_legacy_attach() at vtpci_legacy_attach+0x2fd/frame 0xffffffff831e9690 device_attach() at device_attach+0x478/frame 0xffffffff831e96d0 device_probe_and_attach() at device_probe_and_attach+0xb0/frame 0xffffffff831e9710 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff831e9730 pci_attach() at pci_attach+0x13c/frame 0xffffffff831e9770 acpi_pci_attach() at acpi_pci_attach+0x21/frame 0xffffffff831e97c0 device_attach() at device_attach+0x478/frame 0xffffffff831e9800 device_probe_and_attach() at device_probe_and_attach+0xb0/frame 0xffffffff831e9840 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff831e9860 acpi_pcib_acpi_attach() at acpi_pcib_acpi_attach+0x5c9/frame 0xffffffff831e98d0 device_attach() at device_attach+0x478/frame 0xffffffff831e9910 device_probe_and_attach() at device_probe_and_attach+0xb0/frame 0xffffffff831e9950 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff831e9970 acpi_attach() at acpi_attach+0x13ba/frame 0xffffffff831e9a80 device_attach() at device_attach+0x478/frame 0xffffffff831e9ac0 device_probe_and_attach() at device_probe_and_attach+0xb0/frame 0xffffffff831e9b00 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff831e9b20 device_attach() at device_attach+0x478/frame 0xffffffff831e9b60 device_probe_and_attach() at device_probe_and_attach+0xb0/frame 0xffffffff831e9ba0 bus_generic_new_pass() at bus_generic_new_pass+0x15e/frame 0xffffffff831e9be0 bus_set_pass() at bus_set_pass+0xe2/frame 0xffffffff831e9c20 configure() at configure+0x10/frame 0xffffffff831e9c40 mi_startup() at mi_startup+0x3ac/frame 0xffffffff831e9cb0 btext() at btext+0x2c KDB: enter: panic [ thread pid 0 tid 100000 ] Stopped at kdb_enter+0x67: movq $0,0x163973e(%rip) db>