panic: failed to reclaim memory cpuid = 1 time = 1764931826 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056de1470 kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056de15d0 vpanic() at vpanic+0x257/frame 0xfffffe0056de1790 panic() at panic+0xb5/frame 0xfffffe0056de1860 vm_pageout_oom() at vm_pageout_oom+0xce4/frame 0xfffffe0056de18f0 vm_pageout_worker() at vm_pageout_worker+0xf9b/frame 0xfffffe0056de1ea0 vm_pageout() at vm_pageout+0x2ce/frame 0xfffffe0056de1ef0 fork_exit() at fork_exit+0xcc/frame 0xfffffe0056de1f30 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056de1f30 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- KDB: enter: panic [ thread pid 8 tid 100077 ] Stopped at kdb_enter+0x6e: movq $0,0x258c947(%rip) db> db> set $lines = 0 db> set $maxwidth = 0 db> show registers cs 0x20 ds 0x3b es 0x3b fs 0x13 gs 0x1b ss 0 rax 0x12 rcx 0xfffffe0002bf1850 rdx 0 rbx 0xffffffff82834420 .str.27 rsp 0xfffffe0056de15b0 rbp 0xfffffe0056de15d0 rsi 0 rdi 0xffffffff8165d269 printf+0x149 r8 0 r9 0xffffffff r10 0 r11 0x43 r12 0xfffffe0058607780 r13 0xfffffffffffffffd r14 0xffffffff82834420 .str.27 r15 0 rip 0xffffffff8164664e kdb_enter+0x6e rflags 0x46 kdb_enter+0x6e: movq $0,0x258c947(%rip) db> show proc Process 8 (pagedaemon) at 0xfffffe0058602558: state: NORMAL uid: 0 gid: 0 supp gids: 0 parent: pid 0 at 0xffffffff83b5d020 ABI: null flag: 0x10000284 flag2: 0 reaper: 0xffffffff83b5d020 reapsubtree: 8 sigparent: 20 vmspace: 0xffffffff83b5e000 (map 0xffffffff83b5e000) (map.pmap 0xffffffff83b5e0a0) (pmap 0xffffffff83b5e110) threads: 3 100077 Run CPU 1 [dom0] 100080 D laundp 0xffffffff82838b00 [laundry: dom0] 100081 D umarcls 0xffffffff82838b01 [uma] db> ps pid ppid pgrp uid state wmesg wchan cmd 1131 764 764 0 N syz-executor 1130 1129 766 0 S uwait 0xfffffe005858e100 syz-executor 1129 766 766 0 D (threaded) syz-executor 100411 D vmwait 0xffffffff83003480 syz-executor 100414 S uwait 0xfffffe005830c780 syz-executor 100415 S uwait 0xfffffe005830c480 syz-executor 1127 763 763 0 DL (threaded) syz-executor 100410 D pfault 0xffffffff83003480 syz-executor 100412 D pfault 0xffffffff83003480 syz-executor 1126 1121 1057 0 S+ piperd 0xfffffe00598f9000 sh 1125 1121 1057 0 D+ pfault 0xffffffff83003480 sh 1124 1 766 0 S uwait 0xfffffe005830ce80 syz-executor 1122 1 763 0 S uwait 0xfffffe005830ad00 syz-executor 1121 1120 1057 0 S+ wait 0xfffffe00586de560 sh 1120 1057 1057 0 S+ piperd 0xfffffe00599052e0 sh 1097 1 764 0 S uwait 0xfffffe0077769c80 syz-executor 1096 1 763 0 S uwait 0xfffffe005858f580 syz-executor 1075 1 764 0 S uwait 0xfffffe005830ae00 syz-executor 1062 1060 1057 0 S+ nanslp 0xffffffff83bb4001 sleep 1060 1057 1057 0 S+ wait 0xfffffe00586a8558 sh 1057 1 1057 0 Ss+ wait 0xfffffe00586aaac0 sh 1056 1 766 0 S uwait 0xfffffe007776a700 syz-executor 1055 1 764 0 S uwait 0xfffffe005858e400 syz-executor 1054 1 763 0 S uwait 0xfffffe005830aa00 syz-executor 1047 1 764 0 S uwait 0xfffffe005830c680 syz-executor 1044 1 766 0 S uwait 0xfffffe005858e880 syz-executor 1039 1 763 0 S uwait 0xfffffe00084f7600 syz-executor 1037 1 764 0 S uwait 0xfffffe007776b080 syz-executor 1031 1 763 0 S uwait 0xfffffe0058309200 syz-executor 1030 1 764 0 S uwait 0xfffffe007776ae00 syz-executor 1027 1 766 0 S uwait 0xfffffe005858e680 syz-executor 1025 1 764 0 S uwait 0xfffffe005858eb80 syz-executor 1022 1 763 0 S uwait 0xfffffe007776a400 syz-executor 1021 1 766 0 S uwait 0xfffffe007776a900 syz-executor 1020 1 764 0 S uwait 0xfffffe007776a800 syz-executor 1016 1 763 0 S uwait 0xfffffe005858ee00 syz-executor 1015 1 764 0 S uwait 0xfffffe005830a480 syz-executor 1013 1 766 0 S uwait 0xfffffe005830cd80 syz-executor 1010 1 763 0 S uwait 0xfffffe007776a500 syz-executor 1008 1 766 0 S uwait 0xfffffe007776b180 syz-executor 1004 1 766 0 S uwait 0xfffffe00084f7880 syz-executor 1003 1 763 0 S uwait 0xfffffe0058309b80 syz-executor 1001 1 764 0 S uwait 0xfffffe00084f7500 syz-executor 997 1 763 0 S uwait 0xfffffe007776b280 syz-executor 996 1 764 0 S uwait 0xfffffe005830a400 syz-executor 988 1 766 0 S uwait 0xfffffe005858ff00 syz-executor 987 1 763 0 S uwait 0xfffffe007776a600 syz-executor 985 1 764 0 S uwait 0xfffffe00084f7800 syz-executor 981 1 763 0 S uwait 0xfffffe007776ac00 syz-executor 979 1 766 0 S uwait 0xfffffe007776a300 syz-executor 978 1 764 0 S uwait 0xfffffe005858e980 syz-executor 975 1 763 0 S uwait 0xfffffe00084f7700 syz-executor 970 1 764 0 S uwait 0xfffffe005858fb00 syz-executor 969 1 763 0 S uwait 0xfffffe007776af00 syz-executor 967 1 766 0 S uwait 0xfffffe00084f7400 syz-executor 963 1 764 0 S uwait 0xfffffe005858ec00 syz-executor 961 1 766 0 S uwait 0xfffffe00084f7f00 syz-executor 960 1 763 0 S uwait 0xfffffe007776ad00 syz-executor 959 1 764 0 S uwait 0xfffffe00084f7b80 syz-executor 954 1 766 0 S uwait 0xfffffe0058309900 syz-executor 951 1 764 0 S uwait 0xfffffe00084f7c80 syz-executor 949 943 949 0 Ss select 0xfffffe00077873c0 dhclient 946 1 946 0 Ss select 0xfffffe0007787540 dhclient 943 935 423 65 S select 0xfffffe0007787440 dhclient 935 423 423 0 S wait 0xfffffe005870f000 sh 923 916 916 0 S tun_con 0xfffffe00594a79b8 ifconfig 918 1 766 0 S uwait 0xfffffe005830be00 syz-executor 916 762 916 0 S wait 0xfffffe00586e0570 syz-executor 909 1 763 0 S uwait 0xfffffe005858ea80 syz-executor 896 1 765 0 S uwait 0xfffffe005830a380 syz-executor 895 1 766 0 S uwait 0xfffffe00084f7a80 syz-executor 894 1 764 0 S uwait 0xfffffe005858f400 syz-executor 892 1 763 0 S uwait 0xfffffe005858e580 syz-executor 890 1 765 0 S uwait 0xfffffe005830b700 syz-executor 887 1 764 0 S uwait 0xfffffe005858f900 syz-executor 881 1 766 0 S uwait 0xfffffe00084f7300 syz-executor 880 1 765 0 S uwait 0xfffffe00084f7d00 syz-executor 879 1 763 0 S uwait 0xfffffe00084f7200 syz-executor 878 1 764 0 S uwait 0xfffffe005830b600 syz-executor 873 1 765 0 S uwait 0xfffffe00084f7e80 syz-executor 869 1 763 0 S uwait 0xfffffe0058309a00 syz-executor 868 1 766 0 S umtxn 0xfffffe005858fa00 syz-executor 840 1 764 0 S uwait 0xfffffe005858ed00 syz-executor 837 1 765 0 S uwait 0xfffffe0058309b00 syz-executor 811 0 0 0 DL aiordy 0xfffffe0058711010 [aiod4] 810 0 0 0 DL aiordy 0xfffffe0058711568 [aiod3] 809 0 0 0 DL aiordy 0xfffffe0058711ac0 [aiod2] 808 0 0 0 DL aiordy 0xfffffe00586a8000 [aiod1] 766 762 766 0 S wait 0xfffffe00586e0018 syz-executor 764 762 764 0 DL vmwait 0xffffffff83003480 syz-executor 763 762 763 0 S wait 0xfffffe00586f5558 syz-executor 762 760 760 0 S select 0xfffffe0007787940 syz-executor 760 758 760 0 Ss sigsusp 0xfffffe0058603b68 csh 758 681 758 0 Ss select 0xfffffe00077879c0 sshd 685 1 685 0 Ss nanslp 0xffffffff83bb4000 cron 681 1 681 0 Ss select 0xfffffe0054236ec0 sshd 494 1 494 0 Ss select 0xfffffe0007787b40 syslogd 423 1 423 0 Ss wait 0xfffffe00586aa568 devd 422 1 422 65 Ss select 0xfffffe0007787cc0 dhclient 337 1 337 0 Ss select 0xfffffe0007787bc0 dhclient 334 1 334 0 Ss select 0xfffffe0007787f40 dhclient 16 0 0 0 DL syncer 0xffffffff83ce1c20 [syncer] 15 0 0 0 DL vlruwt 0xfffffe000780a018 [vnlru] 14 0 0 0 DL (threaded) [bufdaemon] 100079 D psleep 0xffffffff83ce0160 [bufdaemon] 100082 D - 0xffffffff83001ec0 [bufspacedaemon-0] 100093 D sdflush 0xfffffe005808e4e8 [/ worker] 9 0 0 0 DL psleep 0xffffffff83d214c0 [vmdaemon] 8 0 0 0 RL (threaded) [pagedaemon] 100077 Run CPU 1 [dom0] 100080 D laundp 0xffffffff82838b00 [laundry: dom0] 100081 D umarcls 0xffffffff82838b01 [uma] 7 0 0 0 DL - 0xffffffff8392c5b0 [rand_harvestq] 6 0 0 0 DL pftm 0xffffffff84772f80 [pf purge] 5 0 0 0 DL waiting 0xffffffff84581700 [sctp_iterator] 4 0 0 0 DL (threaded) [cam] 100045 D - 0xffffffff838f6340 [doneq0] 100046 D - 0xffffffff838f62c0 [async] 100075 D - 0xffffffff838f6140 [scanner] 3 0 0 0 DL (threaded) [crypto] 100042 D crypto_ 0xffffffff83d02e20 [crypto] 100043 D crypto_ 0xfffffe0007b17030 [crypto returns 0] 100044 D crypto_ 0xfffffe0007b17080 [crypto returns 1] 13 0 0 0 DL (threaded) [geom] 100037 D - 0xffffffff83b5c5e0 [g_event] 100038 D - 0xffffffff83b5c600 [g_up] 100039 D - 0xffffffff83b5c620 [g_down] 2 0 0 0 WL (threaded) [clock] 100031 I [clock (0)] 100032 I [clock (1)] 12 0 0 0 WL (threaded) [intr] 100013 I [swi6: task queue] 100014 I [swi6: Giant taskq] 100016 I [swi5: fast taskq] 100033 I [swi1: netisr 0] 100034 I [swi1: hpts] 100035 I [swi1: hpts] 100047 I [irq24: virtio_pci0] 100048 I [irq25: virtio_pci0] 100049 I [irq26: virtio_pci0] 100050 I [irq27: virtio_pci0] 100051 I [irq28: virtio_pci1] 100052 I [irq29: virtio_pci1] 100053 I [irq30: virtio_pci1] 100054 I [irq31: virtio_pci1] 100055 I [irq32: virtio_pci1] 100060 I [irq10: virtio_pci2] 100062 I [irq1: atkbd0] 100063 I [irq12: psm0] 100064 I [swi0: uart uart++] 100068 I [swi1: pf send] 11 0 0 0 RL (threaded) [idle] 100003 Run CPU 0 [idle: cpu0] 100004 CanRun [idle: cpu1] 1 0 1 0 SLs wait 0xfffffe0007809010 [init] 10 0 0 0 DL audit_w 0xffffffff83d038c0 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D - 0xffffffff84c56ff0 [kernel] 100005 D - 0xfffffe00077f7a00 [softirq_0] 100006 D - 0xfffffe00077f7800 [softirq_1] 100007 D - 0xfffffe00077f7600 [if_io_tqg_0] 100008 D - 0xfffffe00077f7400 [if_io_tqg_1] 100009 D - 0xfffffe00077f7200 [if_config_tqg_0] 100010 D - 0xfffffe00077f7000 [kqueue_ctx taskq] 100011 D - 0xfffffe00077f6d00 [jail_remove taskq] 100012 D - 0xfffffe00077f6b00 [bus taskq] 100015 D - 0xfffffe00077f6500 [thread taskq] 100017 D - 0xfffffe00077f6100 [aiod_kick taskq] 100018 D - 0xfffffe00077f5e00 [deferred_unmount ta] 100019 D - 0xfffffe00077f5c00 [inm_free taskq] 100020 D - 0xfffffe00077f5a00 [in6m_free taskq] 100021 D - 0xfffffe00077f5800 [linuxkpi_irq_wq] 100022 D - 0xfffffe00077f5600 [linuxkpi_short_wq_0] 100023 D - 0xfffffe00077f5600 [linuxkpi_short_wq_1] 100024 D - 0xfffffe00077f5600 [linuxkpi_short_wq_2] 100025 D - 0xfffffe00077f5600 [linuxkpi_short_wq_3] 100026 D - 0xfffffe00077f5100 [linuxkpi_long_wq_0] 100027 D - 0xfffffe00077f5100 [linuxkpi_long_wq_1] 100028 D - 0xfffffe00077f5100 [linuxkpi_long_wq_2] 100029 D - 0xfffffe00077f5100 [linuxkpi_long_wq_3] 100036 D - 0xfffffe00077f4400 [firmware taskq] 100040 D - 0xfffffe0007bcc100 [crypto_0] 100041 D - 0xfffffe0007bcc100 [crypto_1] 100056 D - 0xfffffe00077f8200 [vtnet0 rxq 0] 100057 D - 0xfffffe00541f6500 [vtnet0 txq 0] 100058 D - 0xfffffe00541f6400 [vtnet0 rxq 1] 100059 D - 0xfffffe00541f6300 [vtnet0 txq 1] 100061 D vtbslp 0xfffffe00580bf000 [virtio_balloon] 100065 D - 0xffffffff82838b01 [deadlkres] 100069 D - 0xfffffe0058595000 [acpi_task_0] 100070 D - 0xfffffe0058595000 [acpi_task_1] 100071 D - 0xfffffe0058595000 [acpi_task_2] 100073 D - 0xfffffe00077f8100 [mca taskq] 100074 D - 0xfffffe0007bcba00 [CAM taskq] 100076 D - 0xfffffe0058594700 [ipsec_offload] db> show all locks Process 1129 (syz-executor) thread 0xfffffe005879c780 (100411) exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe005876ce10) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_map.c:2813 Process 1125 (sh) thread 0xfffffe00586f4780 (100107) shared lockmgr ufs (ufs) r = 0 (0xfffffe00598f3908) locked @ /syzkaller/managers/i386/kernel/sys/kern/vfs_subr.c:3395 Process 923 (ifconfig) thread 0xfffffe005870b000 (100116) exclusive sx ifnet_detach_sx (ifnet_detach_sx) r = 0 (0xffffffff83ce23e0) locked @ /syzkaller/managers/i386/kernel/sys/net/if.c:3016 Process 764 (syz-executor) thread 0xfffffe00586f1780 (100113) shared sx killpg racer (killpg racer) r = 0 (0xfffffe00586e86e8) locked @ /syzkaller/managers/i386/kernel/sys/kern/kern_fork.c:979 db> show malloc Type InUse MemUse Requests pf_hash 6 12804K 6 linker 384 5207K 498 tcp_hpts 8 4865K 8 devbuf 4187 4324K 4215 sysctloid 35057 2066K 35132 vtbuf 24 1968K 46 kobj 335 1340K 499 filedesc 144 1147K 400 newblk 36 1033K 1413 vfscache 3 1025K 3 pcb 88 671K 176 inodedep 14 517K 351 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 subproc 235 498K 1254 intr 4 472K 4 vnet_data 2 224K 2 acpitask 1 224K 1 KTRACE 101 201K 2053 acpica 1674 184K 56977 vmem 5 146K 8 tidhash 3 141K 3 pagedep 16 132K 149 tfo_ccache 1 128K 1 IP reass 1 128K 1 sem 4 106K 4 DEVFS1 106 106K 123 gtaskqueue 18 98K 18 LRO 22 85K 22 bus 1011 83K 5163 mtx_pool 3 74K 3 syncache 1 68K 1 NFSD srvcache 3 68K 3 module 527 66K 527 ddb_capture 1 64K 1 kdtrace 302 55K 1549 umtx 400 50K 400 BPF 22 36K 71 hostcache 1 32K 1 shm 1 32K 1 DEVFS3 125 32K 135 msg 4 30K 4 plimit 78 30K 443 kbdmux 6 28K 6 temp 30 22K 2144 DEVFS_RULE 56 20K 56 ifaddr 67 19K 69 ufs_mount 4 17K 5 proc 3 17K 3 cred 43 17K 357 tty 16 16K 16 routetbl 130 16K 410 ithread 90 15K 90 bus-sc 34 15K 1690 eventhandler 163 14K 163 lltable 43 14K 50 ifnet 7 13K 7 ether_multi 152 13K 162 kenv 95 12K 95 GEOM 49 11K 431 CAM queue 5 11K 1528 rman 82 10K 437 shmfd 4 10K 8 rpc 8 9K 8 in6_multi 65 9K 65 bmsafemap 2 9K 330 devstat 4 9K 4 UART 12 9K 12 ksem 1 8K 1 pfs_vncache 1 8K 1 audit_evclass 240 8K 306 taskqueue 69 8K 90 kqueue 114 8K 1260 pwddesc 113 8K 1132 sglist 6 7K 6 CAM DEV 3 6K 510 lockf 47 6K 322 pfs_nodes 22 6K 22 UMA 268 5K 268 pf_ifnet 10 5K 20 ufs_dirhash 10 5K 24 vt 11 5K 11 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 acpisem 28 4K 28 DEVFSP 55 4K 150 inpcbpolicy 104 4K 443 selfd 48 3K 11773 proc-args 133 3K 2304 kcovinfo 45 3K 45 terminal 11 3K 11 acpidev 20 3K 20 hhook 8 3K 10 clone 9 3K 9 uidinfo 3 3K 14 netlink 2 3K 89 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 ip6ndp 12 2K 14 Unitno 31 2K 62 sctp_ifa 13 2K 14 session 13 2K 39 CAM XPT 22 2K 543 in_multi 6 2K 8 tun 4 2K 4 toponodes 6 2K 6 newdirblk 11 2K 134 ipsecpolicy 2 2K 2 select 11 2K 47 msi 9 2K 9 softdep 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 nhops 6 1K 8 vnodemarker 2 1K 40 NFSD session 1 1K 1 CAM periph 4 1K 271 sctp_ifn 6 1K 14 ipsec 3 1K 3 mld 6 1K 6 igmp 6 1K 6 pfil 6 1K 6 isadev 6 1K 6 mount 16 1K 89 pci_link 10 1K 10 crypto 4 1K 4 encap_export_host 12 1K 12 osd 9 1K 155 diradd 4 1K 264 CC Mem 4 1K 138 cdev 2 1K 2 lkpikmalloc 8 1K 9 counter_rate 13 1K 13 mkdir 3 1K 268 chacha20random 1 1K 1 biobuf 1 1K 1 indirdep 1 1K 16 vnodes 1 1K 1 procdesc 2 1K 12 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 CAM SIM 2 1K 2 tcpfunc 3 1K 3 ip_msource 3 1K 3 loginclass 3 1K 5 prison 6 1K 6 cryptodev 2 1K 78 nexusdev 8 1K 8 apmdev 1 1K 1 atkbddev 2 1K 2 aio 4 1K 5 pmchooks 1 1K 1 filecaps 5 1K 93 CAM path 4 1K 1034 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 soname 4 1K 3394 sctp_vrf 1 1K 1 freework 1 1K 250 vnet 1 1K 1 pmc 1 1K 1 entropy 2 1K 35 acpiintr 1 1K 1 cpus 2 1K 2 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 p1003.1b 1 1K 1 tcp_pcm_rack 0 0K 23 tcp_do_rack 0 0K 0 tcp_fsb_rack 0 0K 46 pf_table 0 0K 0 pf 0 0K 0 pf_rule 0 0K 0 pf_altq 0 0K 0 pf_osfp 0 0K 0 pf_krule_item 0 0K 0 pf_temp 0 0K 0 mqdata 0 0K 0 sctp_mcore 0 0K 0 sctp_socko 0 0K 0 sctp_iter 0 0K 10 sctp_mvrf 0 0K 0 sctp_timw 0 0K 0 sctp_cpal 0 0K 0 sctp_cmsg 0 0K 0 sctp_stre 0 0K 0 sctp_athi 0 0K 0 sctp_athm 0 0K 16 sctp_atky 0 0K 16 sctp_atcl 0 0K 16 sctp_a_it 0 0K 10 sctp_aadr 0 0K 0 sctp_stro 0 0K 0 sctp_stri 0 0K 0 sctp_map 0 0K 0 filemon 0 0K 0 ipcomp 0 0K 0 esp 0 0K 0 ah 0 0K 0 madt_table 0 0K 2 smartpqi 0 0K 0 ixl 0 0K 0 ice-resmgr 0 0K 0 ice-osdep 0 0K 0 ice 0 0K 0 iavf 0 0K 0 axgbe 0 0K 0 fpukern_ctx serialport: VM disconnected.