[ 122.0830679] panic: kernel diagnostic assertion "mutex_owned(pipe->pipe_lock)" failed: file "/syzkaller/managers/netbsd/kernel/sys/kern/sys_pipe.c", line 371 [ 122.1030455] cpu1: Begin traceback... [ 122.1116162] vpanic() at netbsd:vpanic+0x214 [ 122.1251827] _GLOBAL__sub_D_65535_0_cpu_configure() at netbsd:_GLOBAL__sub_D_65535_0_cpu_configure [ 122.1473203] pipelock() at netbsd:pipelock+0xb0 [ 122.1637444] pipe_write() at netbsd:pipe_write+0x99 [ 122.1787405] dofilewrite() at netbsd:dofilewrite+0x1b7 [ 122.1937343] sys_write() at netbsd:sys_write+0x78 [ 122.2073014] sys___syscall() at netbsd:sys___syscall+0xe2 [ 122.2244391] syscall() at netbsd:syscall+0x32e [ 122.2330085] --- syscall (number 198) --- [ 122.2408648] 79dd4363f4aa: [ 122.2451461] cpu1: End traceback... [ 122.2501463] dumping to dev 4,1 (offset=0, size=0): not possible [ 122.2587133] rebooting... SeaBIOS (version 1.8.2-20190122_225043-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f29c0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... >> NetBSD/x86 BIOS Boot, Revision 5.10 (Tue Jul 17 14:59:51 UTC 2018) (from NetBSD 8.0) >> Memory: 639/3144640 k 1. Boot normally 2. Boot single user 3. Disable ACPI 4. Disable ACPI and SMP 5. Drop to boot prompt |/-\|/-39072864\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-+2870176\|/-\| [1062591/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\+1362504|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\+1043761|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\]=0x2b4f830 |/-\|/-\|/-\|/-\|/-\|/-\|/-\WARNING: couldn't open /var/db/entropy-file WARNING: 1 module failed to load [ 1.0000000] pool redzone disabled for 'pdppl' [ 1.0000000] pool redzone disabled for 'kmem-4096' [ 1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, [ 1.0000000] 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, [ 1.0000000] 2018, 2019 The NetBSD Foundation, Inc. All rights reserved. [ 1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993 [ 1.0000000] The Regents of the University of California. All rights reserved. [ 1.0000000] NetBSD 8.99.36 (GENERIC_SYZKALLER) #58: Sat Mar 23 02:04:44 UTC 2019 [ 1.0000000] root@ci2:/syzkaller/managers/netbsd/kernel/sys/arch/amd64/compile/obj/GENERIC_SYZKALLER [ 1.0000000] total memory = 7679 MB [ 1.0000000] avail memory = 6662 MB [ 1.0000000] pool redzone disabled for 'buf64k' [ 1.0000000] cpu_rng: RDRAND [ 1.0000000] running cgd selftest aes-xts-256 aes-xts-512 done [ 1.0000030] mainbus0 (root) [ 1.0000030] ACPI: RSDP 0x00000000000F2A00 000014 (v00 Google) [ 1.0000030] ACPI: RSDT 0x00000000BFFFDA50 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 1.0000030] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 1.0000030] ACPI: DSDT 0x00000000BFFFDA90 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 1.0000030] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 1.0000030] ACPI: SSDT 0x00000000BFFFF540 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 1.0000030] ACPI: APIC 0x00000000BFFFF450 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 1.0000030] ACPI: WAET 0x00000000BFFFF420 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 1.0000030] ACPI: SRAT 0x00000000BFFFF350 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 1.0000030] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.0000030] ioapic0 at mainbus0 apid 0 [ 1.0000030] cpu0 at mainbus0 apid 0 [ 1.0000030] cpu0: Intel(R) Xeon(R) CPU @ 2.30GHz, id 0x306f0 [ 1.0000030] cpu0: package 0, core 0, smt 0 [ 1.0000030] cpu1 at mainbus0 apid 1 [ 1.0000030] cpu1: Intel(R) Xeon(R) CPU @ 2.30GHz, id 0x306f0 [ 1.0000030] cpu1: package 0, core 0, smt 1 [ 1.0000030] acpi0 at mainbus0: Intel ACPICA 20181213 [ 1.0000030] acpi0: fixed power button present [ 1.0000030] acpi0: fixed sleep button present [ 1.0277171] pckbc1 at acpi0 (KBD, PNP0303) (kbd port): io 0x60,0x64 irq 1 [ 1.0277171] pckbc2 at acpi0 (MOU, PNP0F13) (aux port): irq 12 [ 1.0277171] COM1 (PNP0501) at acpi0 not configured [ 1.0277171] COM2 (PNP0501) at acpi0 not configured [ 1.0277171] COM3 (PNP0501) at acpi0 not configured [ 1.0277171] COM4 (PNP0501) at acpi0 not configured [ 1.0277171] PEVT (QEMU0001) at acpi0 not configured [ 1.0277171] ACPI: Enabled 16 GPEs in block 00 to 0F [ 1.0277171] pckbd0 at pckbc1 (kbd slot) [ 1.0277171] pckbc1: using irq 1 for kbd slot [ 1.0277171] wskbd0 at pckbd0 mux 1 [ 1.0277171] pms0 at pckbc1 (aux slot) [ 1.0277171] pckbc1: using irq 12 for aux slot [ 1.0277171] wsmouse0 at pms0 mux 0 [ 1.0277171] pci0 at mainbus0 bus 0: configuration mode 1 [ 1.0277171] pchb0 at pci0 dev 0 function 0: vendor 8086 product 1237 (rev. 0x02) [ 1.0277171] pcib0 at pci0 dev 1 function 0: vendor 8086 product 7110 (rev. 0x03) [ 1.0277171] piixpm0 at pci0 dev 1 function 3: vendor 8086 product 7113 (rev. 0x03) [ 1.0277171] piixpm0: SMBus disabled [ 1.0277171] virtio0 at pci0 dev 3 function 0 [ 1.0277171] virtio0: Virtio SCSI Device (rev. 0x00) [ 1.0277171] vioscsi0 at virtio0: Features: 0x0 [ 1.0277171] vioscsi0: cmd_per_lun 256 qsize 8192 seg_max 64 max_target 253 max_lun 1 [ 1.0277171] virtio0: config interrupting at msix0 vec 0 [ 1.0277171] virtio0: queues interrupting at msix0 vec 1 [ 1.0277171] scsibus0 at vioscsi0: 16 targets, 1 lun per target [ 1.0277171] virtio1 at pci0 dev 4 function 0 [ 1.0277171] virtio1: Virtio Network Device (rev. 0x00) [ 1.0277171] vioif0 at virtio1: Features: 0x30020 [ 1.0277171] vioif0: Ethernet address 42:01:0a:80:00:08 [ 1.0277171] virtio1: config interrupting at msix1 vec 0 [ 1.0277171] virtio1: queues interrupting at msix1 vec 1 [ 1.0277171] isa0 at pcib0 [ 1.0277171] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo [ 1.0277171] com0: console [ 1.0277171] com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo [ 1.0277171] attimer0 at isa0 port 0x40-0x43 [ 1.0277171] pcppi0 at isa0 port 0x61 [ 1.0277171] spkr0 at pcppi0: PC Speaker [ 1.0277171] wsbell at spkr0 not configured [ 1.0277171] midi0 at pcppi0: PC speaker [ 1.0277171] sysbeep0 at pcppi0