panic: ASan: Invalid access, 4-byte read at 0xfffffe009c13e0b8, UMAUseAfterFree(fd) cpuid = 0 time = 1636352059 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00077fc4f0 kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00077fc650 vpanic() at vpanic+0x2b8/frame 0xfffffe00077fc730 panic() at panic+0xb5/frame 0xfffffe00077fc7f0 __asan_load4_noabort() at __asan_load4_noabort+0x216/frame 0xfffffe00077fc8b0 sctp_med_chunk_output() at sctp_med_chunk_output+0x557/frame 0xfffffe00077fd460 sctp_chunk_output() at sctp_chunk_output+0x2b25/frame 0xfffffe00077fe0b0 sctp_process_control() at sctp_process_control+0x7b22/frame 0xfffffe00077fe780 sctp_common_input_processing() at sctp_common_input_processing+0xb26/frame 0xfffffe00077fe9e0 sctp_input_with_port() at sctp_input_with_port+0x587/frame 0xfffffe00077feb70 sctp_input() at sctp_input+0x32/frame 0xfffffe00077feb90 ip_input() at ip_input+0x69e/frame 0xfffffe00077fecf0 swi_net() at swi_net+0x2e5/frame 0xfffffe00077fed90 ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe00077feef0 fork_exit() at fork_exit+0xd0/frame 0xfffffe00077fef30 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00077fef30 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- KDB: enter: panic [ thread pid 12 tid 100030 ] Stopped at kdb_enter+0x6b: movq $0,0x28dc5da(%rip) db> db> set $lines = 0 db> set $maxwidth = 0 db> show registers cs 0x20 ds 0x3b es 0x3b fs 0x13 gs 0x1b ss 0x28 rax 0x12 rcx 0xacf8c028c4d4958b rdx 0x1 rbx 0 rsp 0xfffffe00077fc630 rbp 0xfffffe00077fc650 rsi 0 rdi 0xffffffff817c4b5a vprintf+0x35a r8 0 r9 0xfffffe00077fc168 r10 0 r11 0 r12 0xfffffe0053e8ec80 r13 0xfffffe00077fc601 r14 0xffffffff82c8dfe0 .str.18 r15 0xffffffff82c8dfe0 .str.18 rip 0xffffffff817b84db kdb_enter+0x6b rflags 0x46 kdb_enter+0x6b: movq $0,0x28dc5da(%rip) db> show proc Process 12 (intr) at 0xfffffe0053dd2548: state: NORMAL uid: 0 gids: 0 parent: pid 0 at 0xffffffff84035a40 ABI: null flag: 0x10000284 flag2: 0 reaper: 0xffffffff84035a40 reapsubtree: 12 sigparent: 20 vmspace: 0xffffffff840369e0 (map 0xffffffff840369e0) (map.pmap 0xffffffff84036aa0) (pmap 0xffffffff84036b08) threads: 23 100013 I [swi5: fast taskq] 100017 I [swi6: task queue] 100018 I [swi6: Giant taskq] 100029 I [swi3: vm] 100030 Run CPU 0 [swi1: netisr 0] 100031 I [swi4: clock (0)] 100032 I [swi4: clock (1)] 100033 I [swi1: hpts] 100034 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] db> ps pid ppid pgrp uid state wmesg wchan cmd 22720 776 776 0 RE CPU 1 syz-executor.0 22718 784 784 0 R (threaded) syz-executor.3 100108 RunQ syz-executor.3 124466 RunQ syz-executor.3 9768 9767 778 0 SV uwait 0xfffffe00a7834600 syz-executor.2 9767 1 778 0 DV ppwait 0xfffffe00a8e24f88 syz-executor.2 9200 9197 776 0 SV uwait 0xfffffe00a7834300 syz-executor.0 9197 1 776 0 DV ppwait 0xfffffe00a8e24a40 syz-executor.0 8726 1 784 0 S uwait 0xfffffe00a7833b80 syz-executor.3 6977 1 6977 65 Ss select 0xfffffe00a78321c0 dhclient 4815 1 784 0 S uwait 0xfffffe00a7833e80 syz-executor.3 4814 1 784 0 S uwait 0xfffffe0057079d00 syz-executor.3 3239 1 3239 0 Ss select 0xfffffe00a78320c0 dhclient 3236 1 3236 0 Ss select 0xfffffe00a78325c0 dhclient 3213 1 3213 65 Ss select 0xfffffe0057079640 dhclient 2870 1 778 0 S uwait 0xfffffe0057079b00 syz-executor.2 2862 1 778 0 S uwait 0xfffffe00a72b3c80 syz-executor.2 2848 1 778 0 S uwait 0xfffffe00a72b3e80 syz-executor.2 2847 1 777 0 S uwait 0xfffffe00a7835180 syz-executor.1 2844 1 776 0 S uwait 0xfffffe00574c7000 syz-executor.0 2838 1 784 0 S uwait 0xfffffe0056ae8600 syz-executor.3 2836 1 776 0 S uwait 0xfffffe00a72b3a80 syz-executor.0 2834 1 777 0 S uwait 0xfffffe00574c6180 syz-executor.1 2831 1 778 0 S uwait 0xfffffe00a72b3780 syz-executor.2 2826 1 784 0 S uwait 0xfffffe00a7834e00 syz-executor.3 2824 1 776 0 S uwait 0xfffffe00a7835580 syz-executor.0 2822 1 778 0 S uwait 0xfffffe00a72b3580 syz-executor.2 2819 1 777 0 S uwait 0xfffffe0057079e00 syz-executor.1 2814 1 784 0 S umtxn 0xfffffe00574c6e80 syz-executor.3 2812 1 778 0 S uwait 0xfffffe00574c6980 syz-executor.2 2802 1 778 0 S uwait 0xfffffe0057079900 syz-executor.2 2800 1 778 0 S uwait 0xfffffe00a7834b00 syz-executor.2 2549 1 2549 0 Ss select 0xfffffe00a7833540 dhclient 2546 1 2546 0 Ss select 0xfffffe00a78334c0 dhclient 2521 1 2521 65 Ss select 0xfffffe00a78337c0 dhclient 1872 1 1872 0 Ss select 0xfffffe00a72b3240 dhclient 1869 1 1869 0 Ss select 0xfffffe00a72b3440 dhclient 1846 1 1846 65 Ss select 0xfffffe0056b928c0 dhclient 1730 1 778 0 S uwait 0xfffffe00a72b3d80 syz-executor.2 1724 1 778 0 S uwait 0xfffffe00a72b3b80 syz-executor.2 1723 1 777 0 S uwait 0xfffffe00574c6580 syz-executor.1 1719 1 776 0 S uwait 0xfffffe00a72b4280 syz-executor.0 1716 1 777 0 S uwait 0xfffffe0057076e00 syz-executor.1 1711 1 776 0 S uwait 0xfffffe00574c6080 syz-executor.0 1710 1 778 0 S uwait 0xfffffe00574c6b80 syz-executor.2 1706 1 777 0 S uwait 0xfffffe00574c7180 syz-executor.1 1705 1 776 0 S uwait 0xfffffe0057076700 syz-executor.0 1698 1 776 0 S uwait 0xfffffe00574c8600 syz-executor.0 1694 1 776 0 S uwait 0xfffffe00a7835700 syz-executor.0 1158 0 0 0 DL - 0xffffffff84182c80 [soaiod4] 1157 0 0 0 DL - 0xffffffff84182c80 [soaiod3] 1156 0 0 0 DL - 0xffffffff84182c80 [soaiod2] 1155 0 0 0 DL - 0xffffffff84182c80 [soaiod1] 1154 0 0 0 DL aiordy 0xfffffe00a730d000 [aiod4] 1153 0 0 0 DL aiordy 0xfffffe00a730d548 [aiod3] 1152 0 0 0 DL aiordy 0xfffffe0058be0548 [aiod2] 1151 0 0 0 DL aiordy 0xfffffe0058bdfa90 [aiod1] 993 1 993 0 Ss select 0xfffffe0056b927c0 dhclient 988 1 988 0 Ss select 0xfffffe0057079540 dhclient 784 773 784 0 Ss nanslp 0xffffffff840619c0 syz-executor.3 778 773 778 0 Rs syz-executor.2 777 773 777 0 Rs syz-executor.1 776 773 776 0 Ss nanslp 0xffffffff840619c1 syz-executor.0 773 771 771 0 S (threaded) syz-fuzzer 100113 S uwait 0xfffffe0057076a00 syz-fuzzer 100115 S uwait 0xfffffe00574c7680 syz-fuzzer 100116 S uwait 0xfffffe00574c7780 syz-fuzzer 100117 S uwait 0xfffffe0056b92c80 syz-fuzzer 100118 S uwait 0xfffffe0057076c00 syz-fuzzer 100119 S uwait 0xfffffe0056b92b80 syz-fuzzer 100120 S kqread 0xfffffe009e968200 syz-fuzzer 100122 S uwait 0xfffffe0057076200 syz-fuzzer 100123 S uwait 0xfffffe00574c6c80 syz-fuzzer 100125 S uwait 0xfffffe0057076d00 syz-fuzzer 771 769 771 0 Ss pause 0xfffffe0058be15f8 csh 769 687 769 0 Ss select 0xfffffe0056b92a40 sshd 753 1 753 0 Ss+ ttyin 0xfffffe00570b1cb0 getty 752 1 752 0 Ss+ ttyin 0xfffffe00584480b0 getty 751 1 751 0 Ss+ ttyin 0xfffffe00584484b0 getty 750 1 750 0 Ss+ ttyin 0xfffffe00584488b0 getty 749 1 749 0 Ss+ ttyin 0xfffffe0058448cb0 getty 748 1 748 0 Ss+ ttyin 0xfffffe00584490b0 getty 747 1 747 0 Ss+ ttyin 0xfffffe00584494b0 getty 746 1 746 0 Ss+ ttyin 0xfffffe00584498b0 getty 745 1 745 0 Ss+ ttyin 0xfffffe0058449cb0 getty 691 1 691 0 Ss nanslp 0xffffffff840619c1 cron 687 1 687 0 Ss select 0xfffffe00574c7c40 sshd 500 1 500 0 Ss select 0xfffffe00574c79c0 syslogd 429 1 429 0 Ss select 0xfffffe00574c7cc0 devd 428 1 428 65 Ss select 0xfffffe0057077740 dhclient 343 1 343 0 Ss select 0xfffffe0057076140 dhclient 340 1 340 0 Ss select 0xfffffe0056b92ec0 dhclient 16 0 0 0 DL syncer 0xffffffff84189de0 [syncer] 15 0 0 0 DL vlruwt 0xfffffe0057897000 [vnlru] 9 0 0 0 DL (threaded) [bufdaemon] 100078 D qsleep 0xffffffff84187ae0 [bufdaemon] 100081 D - 0xffffffff83411f80 [bufspacedaemon-0] 100093 D sdflush 0xfffffe0053c5f8e8 [/ worker] 8 0 0 0 DL psleep 0xffffffff841c0080 [vmdaemon] 7 0 0 0 DL (threaded) [pagedaemon] 100076 D psleep 0xffffffff841b3b78 [dom0] 100082 D launds 0xffffffff841b3b84 [laundry: dom0] 100083 D umarcl 0xffffffff81ebe670 [uma] 6 0 0 0 DL - 0xffffffff83e17be8 [rand_harvestq] 5 0 0 0 DL waiting 0xffffffff84c47760 [sctp_iterator] 4 0 0 0 DL pftm 0xffffffff8494d320 [pf purge] 3 0 0 0 DL (threaded) [cam] 100045 D - 0xffffffff83c9d3c0 [doneq0] 100046 D - 0xffffffff83c9d340 [async] 100075 D - 0xffffffff83c9d1c0 [scanner] 14 0 0 0 DL seqstat 0xfffffe0056aa0c88 [sequencer 00] 2 0 0 0 DL (threaded) [crypto] 100041 D crypto_ 0xffffffff841adc20 [crypto] 100042 D crypto_ 0xfffffe0053c69d30 [crypto returns 0] 100043 D crypto_ 0xfffffe0053c69d80 [crypto returns 1] 13 0 0 0 DL (threaded) [geom] 100036 D - 0xffffffff84034b40 [g_event] 100037 D - 0xffffffff84034b80 [g_up] 100038 D - 0xffffffff84034bc0 [g_down] 12 0 0 0 RL (threaded) [intr] 100013 I [swi5: fast taskq] 100017 I [swi6: task queue] 100018 I [swi6: Giant taskq] 100029 I [swi3: vm] 100030 Run CPU 0 [swi1: netisr 0] 100031 I [swi4: clock (0)] 100032 I [swi4: clock (1)] 100033 I [swi1: hpts] 100034 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 CanRun [idle: cpu0] 100004 CanRun [idle: cpu1] 1 0 1 0 SLs wait 0xfffffe0053dd3000 [init] 10 0 0 0 DL audit_w 0xffffffff841aebc0 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff84035a40 [swapper] 100005 D - 0xfffffe0053c7e700 [if_config_tqg_0] 100006 D - 0xfffffe0053c7e600 [softirq_0] 100007 D - 0xfffffe0053c7e500 [softirq_1] 100008 D - 0xfffffe0053c7e400 [if_io_tqg_0] 100009 D - 0xfffffe0053c7e300 [if_io_tqg_1] 100010 D - 0xfffffe000796c900 [inm_free taskq] 100011 D - 0xfffffe000796c800 [deferred_unmount ta] 100012 D - 0xfffffe000796c700 [thread taskq] 100014 D - 0xfffffe000796c500 [pci_hp taskq] 100015 D - 0xfffffe000796c400 [linuxkpi_irq_wq] 100016 D - 0xfffffe000796c300 [kqueue_ctx taskq] 100019 D - 0xfffffe000796c000 [aiod_kick taskq] 100020 D - 0xfffffe000796be00 [in6m_free taskq] 100021 D - 0xfffffe000796bd00 [linuxkpi_short_wq_0] 100022 D - 0xfffffe000796bd00 [linuxkpi_short_wq_1] 100023 D - 0xfffffe000796bd00 [linuxkpi_short_wq_2] 100024 D - 0xfffffe000796bd00 [linuxkpi_short_wq_3] 100025 D - 0xfffffe000796bc00 [linuxkpi_long_wq_0] 100026 D - 0xfffffe000796bc00 [linuxkpi_long_wq_1] 100027 D - 0xfffffe000796bc00 [linuxkpi_long_wq_2] 100028 D - 0xfffffe000796bc00 [linuxkpi_long_wq_3] 100035 D - 0xfffffe000796bb00 [firmware taskq] 100039 D - 0xfffffe000796ba00 [crypto_0] 100040 D - 0xfffffe000796ba00 [crypto_1] 100056 D - 0xfffffe000796b700 [vtnet0 rxq 0] 100057 D - 0xfffffe000796b600 [vtnet0 txq 0] 100058 D - 0xfffffe000796b500 [vtnet0 rxq 1] 100059 D - 0xfffffe000796b400 [vtnet0 txq 1] 100061 D vtbslp 0xfffffe0057079100 [virtio_balloon] 100065 D - 0xfffffe000796b300 [mca taskq] 100066 D - 0xffffffff82c94fa0 [deadlkres] 100070 D - 0xfffffe005843f300 [acpi_task_0] 100071 D - 0xfffffe005843f300 [acpi_task_1] 100072 D - 0xfffffe005843f300 [acpi_task_2] 100074 D - 0xfffffe000796b900 [CAM taskq] 22719 778 778 0 Z syz-executor.2 db> show all locks Process 22720 (syz-executor.0) thread 0xfffffe00a8dbe740 (112814) exclusive rw pmap pv list (pmap pv list) r = 0 (0xfffffe000774e580) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:8397 exclusive sleep mutex pmap (pmap) r = 0 (0xfffffe00a8d60128) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:8309 Process 22718 (syz-executor.3) thread 0xfffffe00a8f511e0 (124466) exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a794cc70) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4320 exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009efa0e50) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4404 exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe009efa0e70) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:6997 Process 12 (intr) thread 0xfffffe0053e8ec80 (100030) exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a78bc380) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:1526 db> show malloc Type InUse MemUse Requests pf_hash 5 11524K 5 devbuf 4213 4323K 4241 tcp_hpts 6 3201K 6 sysctloid 34970 2060K 35041 vtbuf 24 1968K 46 kobj 326 1304K 485 newblk 8 1026K 24948 vfscache 3 1025K 3 pcb 442 1003K 86065 inodedep 459 684K 21915 filedesc 82 650K 43431 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 472K 4 subproc 219 438K 22844 vmem 3 274K 5 acpica 1674 184K 55237 vnet_data 1 168K 1 tidhash 3 141K 3 linker 355 140K 399 pagedep 8 130K 21712 tfo_ccache 1 128K 1 sctp_atcl 341 128K 58826 sctp_stro 126 126K 15008 dirrem 451 113K 21755 DEVFS1 108 108K 125 sem 4 106K 4 BPF 46 88K 66 bus 986 80K 3474 mtx_pool 2 72K 2 sctp_timw 272 68K 272 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 509 64K 509 umtx 462 58K 462 kdtrace 300 57K 47190 freefile 451 57K 21723 temp 34 33K 2648 hostcache 1 32K 1 shm 1 32K 21 DEVFS3 127 32K 137 msg 4 30K 4 gtaskqueue 18 26K 18 kbdmux 6 22K 6 ifaddr 71 21K 73 DEVFS_RULE 56 20K 56 sctp_atky 467 19K 76499 ufs_mount 4 17K 5 proc 3 17K 3 tty 16 16K 16 routetbl 138 16K 454 ithread 99 16K 99 lltable 47 15K 169 bus-sc 34 15K 1691 ether_multi 157 13K 167 KTRACE 100 13K 100 ifnet 7 13K 7 ksem 31 12K 217 kenv 95 12K 95 eventhandler 133 12K 133 CAM queue 5 11K 1528 GEOM 61 10K 490 rman 84 10K 425 in6_multi 71 9K 71 kqueue 100 9K 22733 bmsafemap 2 9K 21875 UART 12 9K 12 devstat 4 9K 4 rpc 2 8K 2 shmfd 1 8K 26 pfs_vncache 1 8K 1 pfs_nodes 20 8K 20 audit_evclass 237 8K 295 cred 27 7K 291 taskqueue 63 7K 63 DEVFSP 97 7K 1495 sglist 5 7K 5 CAM DEV 3 6K 510 plimit 24 6K 449 pwddesc 96 6K 22738 sctp_athm 341 6K 60200 ufs_dirhash 24 5K 24 pf_ifnet 11 5K 27 session 35 5K 51 UMA 268 5K 268 vt 11 5K 11 sctp_stri 8 4K 2691 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 kcovinfo 64 4K 68 proc-args 125 4K 24079 sctp_map 252 4K 30016 acpisem 28 4K 28 selfd 55 4K 319239 lockf 32 4K 86 hhook 15 4K 17 terminal 11 3K 11 select 19 3K 238 uidinfo 3 3K 25 local_apic 1 2K 1 io_apic 1 2K 1 fpukern_ctx 2 2K 2 ipsec-saq 2 2K 2 ip6ndp 12 2K 15 sctp_ifa 14 2K 15 Unitno 27 2K 47 CAM XPT 22 2K 543 in_multi 6 2K 8 ipsecpolicy 2 2K 2 acpidev 20 2K 20 xform 19 2K 2629 msi 9 2K 9 clone 9 2K 9 tun 7 2K 7 freework 5 2K 22548 softdep 1 1K 1 freeblks 4 1K 21767 sahead 1 1K 1 secasvar 1 1K 1 nhops 6 1K 8 vnodemarker 2 1K 130 NFSD session 1 1K 1 CAM periph 4 1K 271 ipsec 3 1K 3 sctp_ifn 6 1K 15 mkdir 6 1K 43342 mld 6 1K 6 igmp 6 1K 6 toponodes 6 1K 6 isadev 6 1K 6 mount 16 1K 89 pci_link 10 1K 10 crypto 4 1K 980 encap_export_host 12 1K 12 procdesc 5 1K 18 inpcbpolicy 17 1K 3097 pfil 4 1K 4 cdev 2 1K 2 osd 8 1K 1263 newdirblk 3 1K 21671 diradd 3 1K 21794 chacha20random 1 1K 1 pf_osfp 3 1K 3 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 newreno data 4 1K 1252 vnodes 1 1K 1 CAM SIM 2 1K 2 feeder 7 1K 7 ip6_msource 3 1K 3 tcpfunc 3 1K 3 loginclass 3 1K 6 prison 6 1K 6 lkpikmalloc 5 1K 6 aesni_data 2 1K 2 nexusdev 8 1K 8 apmdev 1 1K 1 atkbddev 2 1K 2 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 CAM path 4 1K 1034 soname 5 1K 35992 pmchooks 1 1K 1 filecaps 5 1K 120 sctp_vrf 1 1K 1 vnet 1 1K 1 entropy 2 1K 47 acpiintr 1 1K 1 pmc 1 1K 1 cpus 2 1K 2 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 p1003.1b 1 1K 1 mqdata 0 0K 0 cdg data 0 0K 0 chd data 0 0K 0 dctcp data 0 0K 10 cubic data 0 0K 5 tcp_do 0 0K 0 tcp_fsb 0 0K 427 vegas data 0 0K 5 htcp data 0 0K 0 sctp_mcore 0 0K 0 sctp_socko 0 0K 24319 sctp_iter 0 0K 12 sctp_mvrf 0 0K 0 sctp_cpal 0 0K 0 sctp_cmsg 0 0K 0 sctp_stre 0 0K 0 sctp_athi 0 0K 0 sctp_a_it 0 0K 12 sctp_aadr 0 0K 20 pf_table 0 0K 6 pf_rule 0 0K 9 pf_altq 0 0K 0 pf_temp 0 0K 0 NFSD rollback 0 0K 0 NFSCL diroff 0 0K 0 madt_table 0 0K 2 smartpqi 0 0K 0 NEWdirectio 0 0K 0 NEWNFSnode 0 0K 0 NFSCL lck 0 0K 0 NFSCL lckown 0 0K 0 NFSCL client 0 0K 0 NFSCL deleg 0 0K 0 NFSCL open 0 0K 0 NFSCL owner 0 0K 0 iavf 0 0K 0 ixl 0 0K 0 NFS fh 0 0K 0 NFS req 0 0K 0 NFSD usrgroup 0 0K 0 NFSD string 0 0K 0 NFSD V4lock 0 0K 0 NFSD V4state 0 0K 0 ice-resmgr 0 0K 0 ice-osdep 0 0K 0 ice 0 0K 0 axgbe 0 0K 0 NFSD srvcache 0 0K 0 msdosfs_fat 0 0K 0 msdosfs_mount 0 0K 0 msdosfs_node 0 0K 0 DEVFS4 0 0K 0 xen_intr 0 0K 0 DEVFS2 0 0K 0 xen_hvm 0 0K 0 legacydrv 0 0K 0 qpidrv 0 0K 0 gntdev 0 0K 0 privcmd_dev 0 0K 0 dmar_idpgtbl 0 0K 0 dmar_dom 0 0K 0 dmar_ctx 0 0K 0 evtchn_dev 0 0K 0 xenstore 0 0K 0 ciss_data 0 0K 0 isci 0 0K 0 iommu_dmamap 0 0K 0 BACKLIGHT 0 0K 0 hyperv_socket 0 0K 0 bxe_ilt 0 0K 0 xnb 0 0K 0 xenbus 0 0K 0 xbbd 0 0K 0 xbd 0 0K 0 Balloon 0 0K 0 vm_fictitious 0 0K 0 sysmouse 0 0K 0 vtfont 0 0K 0 ath_hal 0 0K 0 athdev 0 0K 0 ata_pci 0 0K 0 ata_dma 0 0K 0 ata_generic 0 0K 0 amr 0 0K 0 pvscsi 0 0K 0 UMAHash 0 0K 0 scsi_da 0 0K 69 vm_pgdata 0 0K 0 jblocks 0 0K 0 savedino 0 0K 17417 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 63 jsegdep 0 0K 0 jseg 0 0K 0 jfreefrag 0 0K 0 jfreeblk 0 0K 0 jnewblk 0 0K 0 jmvref 0 0K 0 jremref 0 0K 0 jaddref 0 0K 0 freedep 0 0K 0 freefrag 0 0K 6 allocindir 0 0K 0 indirdep 0 0K 1201 allocdirect 0 0K 0 ufs_trim 0 0K 0 mactemp 0 0K 0 audit_trigger 0 0K 0 audit_pipe_presel 0 0K 0 audit_pipeent 0 0K 0 audit_pipe 0 0K 0 audit_evname 0 0K 0 audit_bsm 0 0K 0 audit_gidset 0 0K 0 audit_text 0 0K 0 audit_path 0 0K 0 audit_data 0 0K 0 audit_cred 0 0K 0 ata_da 0 0K 0 scsi_ch 0 0K 0 scsi_cd 0 0K 0 AHCI driver 0 0K 0 USBdev 0 0K 0 USB 0 0K 0 agp 0 0K 0 ktls_ocf 0 0K 0 nvme_da 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5E_TLS 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EN 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 MLX5DUMP 0 0K 0 MLX5EEPROM 0 0K 0 MLX5EEPROM 0 0K 0 seq_file 0 0K 0 radix 0 0K 0 idr 0 0K 0 lkpifw 0 0K 0 NLM 0 0K 0 ipsec-spdcache 0 0K 0 ipsec-reg 0 0K 0 ipsec-misc 0 0K 0 ipsecrequest 0 0K 0 ip6opt 0 0K 11 ip6_moptions 0 0K 4 in6_mfilter 0 0K 14 frag6 0 0K 0 tcplog 0 0K 0 tcp_hwpace 0 0K 0 acpipwr 0 0K 0 LRO 0 0K 0 ip_msource 0 0K 0 ip_moptions 0 0K 0 in_mfilter 0 0K 0 ipid 0 0K 0 80211scan 0 0K 0 80211ratectl 0 0K 0 80211power 0 0K 0 80211nodeie 0 0K 0 80211node 0 0K 0 80211mesh_gt 0 0K 0 80211mesh_rt 0 0K 0 80211perr 0 0K 0 80211prep 0 0K 0 80211preq 0 0K 0 80211dfs 0 0K 0 80211crypto 0 0K 0 80211vap 0 0K 0 iflib 0 0K 0 vlan 0 0K 0 gif 0 0K 0 ifdescr 0 0K 0 zlib 0 0K 0 fadvise 0 0K 0 VN POLL 0 0K 0 acpi_perf 0 0K 0 statfs 0 0K 21915 namei_tracker 0 0K 0 export_host 0 0K 0 cl_savebuf 0 0K 5 twsbuf 0 0K 0 twe_commands 0 0K 0 twa_commands 0 0K 0 tcp_log_dev 0 0K 145 midi buffers 0 0K 0 mixer 0 0K 0 ac97 0 0K 0 hdacc 0 0K 0 hdac 0 0K 0 hdaa 0 0K 0 acpicmbat 0 0K 0 SIIS driver 0 0K 0 CAM CCB 0 0K 523 PUC 0 0K 0 ppbusdev 0 0K 0 biobuf 0 0K 0 aios 0 0K 4 lio 0 0K 6 acl 0 0K 0 agtiapi_MemAlloc malloc 0 0K 0 mbuf_tag 0 0K 166 ktls 0 0K 0 osti_cacheable 0 0K 0 tempbuff 0 0K 0 tempbuff 0 0K 0 ag_tgt_map_t malloc 0 0K 0 ag_slr_map_t malloc 0 0K 0 lDevFlags * malloc 0 0K 0 tiDeviceHandle_t * malloc 0 0K 0 ag_portal_data_t malloc 0 0K 0 ag_device_t malloc 0 0K 0 STLock malloc 0 0K 0 CCB List 0 0K 0 sr_iov 0 0K 0 OCS 0 0K 0 OCS 0 0K 0 nvme 0 0K 0 nvd 0 0K 0 netmap 0 0K 0 mwldev 0 0K 0 MVS driver 0 0K 0 CAM ccb queue 0 0K 0 mrsasbuf 0 0K 0 mpt_user 0 0K 0 mps_user 0 0K 0 accf 0 0K 0 pts 0 0K 0 iov 0 0K 22844 ioctlops 0 0K 1082 eventfd 0 0K 12 Witness 0 0K 0 stack 0 0K 0 MPSSAS 0 0K 0 mps 0 0K 0 mpr_user 0 0K 0 MPRSAS 0 0K 0 mpr 0 0K 0 mfibuf 0 0K 0 sbuf 0 0K 288 md_sectors 0 0K 0 firmware 0 0K 0 compressor 0 0K 0 md_disk 0 0K 0 SWAP 0 0K 0 malodev 0 0K 0 LED 0 0K 0 sysctltmp 0 0K 891 sysctl 0 0K 3 ekcd 0 0K 0 dumper 0 0K 0 sendfile 0 0K 0 rctl 0 0K 0 ix_sriov 0 0K 0 aacraidcam 0 0K 0 aacraid_buf 0 0K 0 ix 0 0K 0 ipsbuf 0 0K 0 cache 0 0K 0 iirbuf 0 0K 0 prison_racct 0 0K 0 Fail Points 0 0K 0 sigio 0 0K 1 filedesc_to_leader 0 0K 16 pwd 0 0K 0 tty console 0 0K 0 aaccam 0 0K 0 aacbuf 0 0K 0 zstd 0 0K 0 XZ_DEC 0 0K 0 nvlist 0 0K 0 SCSI ENC 0 0K 0 SCSI sa 0 0K 0 scsi_pass 0 0K 0 isofs_node 0 0K 0 isofs_mount 0 0K 0 tr_raid5_data 0 0K 0 tr_raid1e_data 0 0K 0 tr_raid1_data 0 0K 0 tr_raid0_data 0 0K 0 tr_concat_data 0 0K 0 md_sii_data 0 0K 0 md_promise_data 0 0K 0 md_nvidia_data 0 0K 0 md_jmicron_data 0 0K 0 md_intel_data 0 0K 0 md_ddf_data 0 0K 0 raid_data 0 0K 72 geom_flashmap 0 0K 0 tmpfs dir 0 0K 0 tmpfs name 0 0K 0 tmpfs mount 0 0K 0 NFS FHA 0 0K 0 newnfsmnt 0 0K 0 newnfsclient_req 0 0K 0 NFSCL layrecall 0 0K 0 NFSCL session 0 0K 0 NFSCL sockreq 0 0K 0 NFSCL devinfo 0 0K 0 NFSCL flayout 0 0K 0 NFSCL layout 0 0K 0 db> show uma Zone Size Used Free Requests Sleeps Bucket Total Mem XFree mbuf_jumbo_page 4096 8320 1078 1176818 0 254 38494208 0 tcp_log 416 0 44199 222579 0 254 18386784 0 mbuf 256 9040 3414 2486138 0 254 3188224 0 pbuf 2624 0 957 0 0 2 2511168 0 RADIX NODE 144 16693 438 517223 0 63 2466864 0 mbuf_cluster 2048 1016 0 1016 0 254 2080768 0 sctp_asoc 2288 126 639 15008 0 254 1750320 0 BUF TRIE 144 238 11522 3471 0 62 1693440 0 malloc-384 384 4193 37 4656 0 30 1624320 0 malloc-128 128 11468 126 33285 0 126 1484032 0 vmem btag 56 25002 93 25002 0 254 1405320 0 malloc-4096 4096 327 5 574 0 2 1359872 0 UMA Slabs 0 112 11469 9 11469 0 126 1285536 0 malloc-256 256 488 3487 40418 0 62 1017600 0 sctp_ep 1272 207 555 42471 0 254 969264 0 malloc-2048 2048 211 237 42672 0 8 917504 0 256 Bucket 2048 413 19 10052 0 8 884736 0 malloc-384 384 502 1598 21960 0 30 806400 0 malloc-16384 16384 40 7 21713 0 1 770048 0 FFS inode 1160 545 36 22268 0 8 673960 0 sctp_raddr 736 151 619 21297 0 254 566720 0 tcpcb 1096 4 507 1252 0 254 560056 0 tcp_bbr_map 128 0 4309 117464 0 126 551552 0 VM OBJECT 264 1758 102 322115 0 30 491040 0 socket 960 127 381 47050 0 254 487680 0 malloc-4096 4096 100 6 22727 0 2 434176 0 THREAD 1808 201 30 24468 0 8 417648 0 malloc-1024 1024 132 268 15174 0 16 409600 0 ertt_txseginfo 40 0 10201 407692 0 254 408040 0 malloc-65536 65536 4 2 476 0 1 393216 0 lkpimm 168 1 2327 1 0 62 391104 0 lkpicurr 168 2 2326 2 0 62 391104 0 malloc-384 384 465 525 58996 0 30 380160 0 MAP ENTRY 96 3396 384 1243697 0 126 362880 0 VNODE 448 585 108 22310 0 30 310464 0 malloc-64 64 4121 730 27379 0 254 310464 0 malloc-256 256 465 660 71847 0 62 288000 0 malloc-128 128 456 1714 22821 0 126 277760 0 sctp_chunk 152 141 1653 8050 0 254 272688 0 mbuf_packet 256 218 798 48776 0 254 260096 0 ripcb 496 7 505 441 0 254 253952 0 udplite_inpcb 496 0 512 1085 0 254 253952 0 tcp_inpcb 496 4 508 1252 0 254 253952 0 udp_inpcb 496 6 506 319 0 254 253952 0 malloc-16 16 14503 497 14602 0 254 240000 0 malloc-32768 32768 0 7 1117 0 1 229376 0 DEVCTL 1024 0 220 155 0 0 225280 0 VMSPACE 2552 71 13 22694 0 4 214368 0 malloc-256 256 481 329 46354 0 62 207360 0 FPU_save_area 832 203 40 30172 0 16 202176 0 malloc-65536 65536 1 2 9 0 1 196608 0 malloc-65536 65536 1 2 21 0 1 196608 0 malloc-32 32 5382 540 28721 0 254 189504 0 UMA Zones 768 240 4 240 0 16 187392 0 malloc-128 128 1233 162 69563 0 126 178560 0 PROC 1352 97 23 22720 0 8 162240 0 FFS2 dinode 256 545 85 22268 0 62 161280 0 128 Bucket 1024 110 37 3477 0 16 150528 0 malloc-1024 1024 121 23 1586 0 16 147456 0 S VFS Cache 104 1031 373 23119 0 126 146016 0 filedesc0 1072 96 30 22738 0 8 135072 0 malloc-65536 65536 2 0 2 0 1 131072 0 malloc-128 128 900 123 23946 0 126 130944 0 unpcb 256 20 490 1436 0 254 130560 0 clpbuf 2624 0 48 147 0 16 125952 0 64 Bucket 512 146 86 16840 0 30 118784 0 ksiginfo 112 112 932 5906 0 126 116928 0 malloc-64 64 819 756 43308 0 254 100800 0 malloc-128 128 626 149 4862 0 126 99200 0 malloc-8192 8192 5 7 283 0 1 98304 0 malloc-4096 4096 22 0 22 0 2 90112 0 UMA Kegs 384 226 7 226 0 30 89472 0 g_bio 408 0 210 26612 0 30 85680 0 malloc-64 64 766 557 345450 0 254 84672 0 malloc-16384 16384 5 0 180 0 1 81920 0 malloc-8192 8192 5 5 134 0 1 81920 0 malloc-4096 4096 14 6 21940 0 2 81920 0 32 Bucket 256 142 173 6375 0 62 80640 0 sctp_readq 152 6 514 806 0 254 79040 0 malloc-128 128 152 375 418 0 126 67456 0 malloc-65536 65536 1 0 1 0 1 65536 0 malloc-32768 32768 0 2 130 0 1 65536 0 malloc-2048 2048 11 21 524 0 8 65536 0 Files 80 387 413 84258 0 126 64000 0 sctp_stream_msg_out 112 29 511 1330 0 254 60480 0 malloc-256 256 78 117 760 0 62 49920 0 malloc-256 256 39 156 44996 0 62 49920 0 DIRHASH 1024 34 14 34 0 16 49152 0 NAMEI 1024 0 48 106287 0 16 49152 0 malloc-4096 4096 9 3 17 0 2 49152 0 malloc-2048 2048 2 22 525 0 8 49152 0 malloc-1024 1024 12 36 537 0 16 49152 0 malloc-512 512 8 88 2694 0 30 49152 0 tcp_rack_pcb 896 0 54 427 0 16 48384 0 pipe 744 23 42 842 0 16 48360 0 syncache 168 0 264 4 0 254 44352 0 malloc-32 32 361 1025 62937 0 254 44352 0 TURNSTILE 136 232 83 232 0 62 42840 0 malloc-8192 8192 3 2 17 0 1 40960 0 malloc-8192 8192 5 0 5 0 1 40960 0 pcpu-8 8 4727 393 5219 0 254 40960 0 sctp_laddr 48 20 820 24238 0 254 40320 0 da_ccb 544 0 70 6919 0 16 38080 0 PWD 32 49 1085 21764 0 254 36288 0 malloc-64 64 81 486 17373 0 254 36288 0 malloc-64 64 167 400 1683 0 254 36288 0 malloc-64 64 26 541 590 0 254 36288 0 malloc-64 64 7 560 7 0 254 36288 0 16 Bucket 144 87 165 703 0 62 36288 0 malloc-128 128 94 185 453 0 126 35712 0 malloc-128 128 18 261 20 0 126 35712 0 routing nhops 256 27 108 35 0 62 34560 0 ttyoutq 256 72 63 160 0 62 34560 0 malloc-384 384 34 56 34 0 30 34560 0 malloc-256 256 5 130 1179 0 62 34560 0 malloc-256 256 62 73 162 0 62 34560 0 malloc-256 256 37 98 21747 0 62 34560 0 SLEEPQUEUE 88 232 152 232 0 126 33792 0 malloc-32768 32768 1 0 1 0 1 32768 0 malloc-32768 32768 1 0 1 0 1 32768 0 malloc-32768 32768 1 0 1 0 1 32768 0 malloc-8192 8192 4 0 4 0 1 32768 0 malloc-2048 2048 6 10 844 0 8 32768 0 malloc-2048 2048 3 13 183 0 8 32768 0 malloc-2048 2048 0 16 2 0 8 32768 0 malloc-2048 2048 7 9 11 0 8 32768 0 malloc-2048 2048 2 14 22 0 8 32768 0 malloc-1024 1024 2 30 36 0 16 32768 0 malloc-1024 1024 16 16 16 0 16 32768 0 malloc-1024 1024 3 29 41 0 16 32768 0 malloc-1024 1024 5 27 30 0 16 32768 0 malloc-512 512 0 64 23 0 30 32768 0 malloc-512 512 5 59 324 0 30 32768 0 malloc-512 512 12 52 12 0 30 32768 0 malloc-512 512 10 54 30 0 30 32768 0 pcpu-64 64 487 25 487 0 254 32768 0 KNOTE 160 28 172 206663 0 62 32000 0 ttyinq 160 135 65 300 0 62 32000 0 malloc-16 16 622 1378 135031 0 254 32000 0 tcp_rack_map 120 0 264 965 0 126 31680 0 tcp_bbr_pcb 832 0 36 404 0 16 29952 0 cpuset 104 7 272 26 0 126 29016 0 sctp_asconf_ack 48 0 588 7 0 254 28224 0 malloc-32 32 393 489 1213 0 254 28224 0 4 Bucket 48 6 582 534 0 254 28224 0 AIO 208 0 133 73 0 62 27664 0 malloc-8192 8192 2 1 4 0 1 24576 0 malloc-4096 4096 3 3 637 0 2 24576 0 rtentry 176 31 107 35 0 62 24288 0 PGRP 88 35 241 53 0 126 24288 0 rl_entry 40 86 520 86 0 254 24240 0 8 Bucket 80 78 222 4811 0 126 24000 0 itimer 352 0 66 8 0 30 23232 0 malloc-384 384 3 57 90 0 30 23040 0 malloc-384 384 11 49 14 0 30 23040 0 malloc-384 384 1 59 25 0 30 23040 0 domainset 40 0 567 19 0 254 22680 0 hostcache 64 1 314 1 0 254 20160 0 udpcb 32 6 624 1404 0 254 20160 0 AIOP 32 4 626 4 0 254 20160 0 ertt 72 4 276 1252 0 126 20160 0 malloc-64 64 2 313 2 0 254 20160 0 malloc-32 32 140 490 7239 0 254 20160 0 malloc-32 32 50 580 125 0 254 20160 0 malloc-32 32 44 586 45 0 254 20160 0 malloc-32 32 32 598 384 0 254 20160 0 malloc-32 32 19 611 3111 0 254 20160 0 2 Bucket 32 68 562 2552 0 254 20160 0 cryptop 280 0 70 104 0 30 19600 0 AIOCB 552 0 35 76 0 16 19320 0 Mountpoints 2752 2 5 2 0 4 19264 0 AIOLIO 272 0 70 6 0 30 19040 0 epoch_record pcpu 256 4 60 4 0 62 16384 0 malloc-16384 16384 1 0 1 0 1 16384 0 malloc-16384 16384 1 0 1 0 1 16384 0 malloc-16384 16384 1 0 1 0 1 16384 0 malloc-4096 4096 1 3 2 0 2 16384 0 malloc-1024 1024 5 11 5 0 16 16384 0 malloc-512 512 2 30 2 0 30 16384 0 malloc-512 512 0 32 1 0 30 16384 0 malloc-512 512 1 31 1 0 30 16384 0 SMR CPU 32 3 508 3 0 254 16352 0 vtnet_tx_hdr 24 0 668 833177 0 254 16032 0 malloc-16 16 520 480 1856 0 254 16000 0 kenv 258 15 45 1040 0 30 15480 0 mqnode 416 3 33 3 0 30 14976 0 vmem 1856 1 7 1 0 8 14848 0 SMR SHARED 24 3 508 3 0 254 12264 0 malloc-16 16 18 732 29683 0 254 12000 0 malloc-16 16 5 745 651 0 254 12000 0 malloc-16 16 6 744 6 0 254 12000 0 malloc-16 16 75 675 23506 0 254 12000 0 malloc-8192 8192 1 0 1 0 1 8192 0 malloc-4096 4096 0 2 2 0 2 8192 0 malloc-16 16 2 498 4 0 254 8000 0 pcpu-16 16 7 249 7 0 254 4096 0 UMA Slabs 1 176 9 13 9 0 62 3872 0 KMAP ENTRY 96 12 27 14 0 0 3744 0 FFS1 dinode 128 0 0 0 0 126 0 0 ada_ccb 272 0 0 0 0 30 0 0 swblk 136 0 0 0 0 62 0 0 swpctrie 144 0 0 0 0 62 0 0 cdg_qdiffsample 16 0 0 0 0 254 0 0 sctp_asconf 40 0 0 0 0 254 0 0 pf state scrubs 40 0 0 0 0 254 0 0 pf frag entries 40 0 0 0 0 254 0 0 pf frags 248 0 0 0 0 62 0 0 pf table entries 160 0 0 0 0 62 0 0 pf table entry counters 64 0 0 0 0 254 0 0 pf source nodes 136 0 0 0 0 254 0 0 pf state keys 88 0 0 0 0 126 0 0 pf states 312 0 0 0 0 254 0 0 pf tags 104 0 0 0 0 126 0 0 pf mtags 48 0 0 0 0 254 0 0 tcp_log_node 120 0 0 0 0 126 0 0 tcp_log_bucket 176 0 0 0 0 62 0 0 tcpreass 48 0 0 0 0 254 0 0 tfo_ccache_entries 80 0 0 0 0 126 0 0 tfo 4 0 0 0 0 254 0 0 sackhole 32 0 0 0 0 254 0 0 tcptw 88 0 0 0 0 254 0 0 ipq 56 0 0 0 0 254 0 0 IPsec SA lft_c 16 0 0 0 0 254 0 0 mqnotifier 216 0 0 0 0 62 0 0 mvdata 64 0 0 0 0 254 0 0 mqueue 248 0 0 0 0 62 0 0 NCLNODE 608 0 0 0 0 16 0 0 TMPFS node 224 0 0 0 0 62 0 0 LTS VFS Cache 360 0 0 0 0 30 0 0 L VFS Cache 320 0 0 0 0 30 0 0 STS VFS Cache 144 0 0 0 0 62 0 0 linux_dma_object 32 0 0 0 0 254 0 0 linux_dma_pctrie 144 0 0 0 0 62 0 0 IOMMU_MAP_ENTRY 120 0 0 0 0 126 0 0 mbuf_jumbo_16k 16384 0 0 0 0 254 0 0 mbuf_jumbo_9k 9216 0 0 0 0 254 0 0 audit_record 1280 0 0 0 0 8 0 0 MAC labels 40 0 0 0 0 254 0 0 vnpbuf 2624 0 0 0 0 64 0 0 mdpbuf 2624 0 0 0 0 3 0 0 nfspbuf 2624 0 0 0 0 16 0 0 swwbuf 2624 0 0 0 0 8 0 0 swrbuf 2624 0 0 0 0 16 0 0 umtx_shm 88 0 0 0 0 126 0 0 umtx pi 96 0 0 0 0 126 0 0 rangeset pctrie nodes 144 0 0 0 0 62 0 0 malloc-65536 65536 0 0 0 0 1 0 0 malloc-65536 65536 0 0 0 0 1 0 0 malloc-65536 65536 0 0 0 0 1 0 0 malloc-32768 32768 0 0 0 0 1 0 0 malloc-32768 32768 0 0 0 0 1 0 0 malloc-32768 32768 0 0 0 0 1 0 0 malloc-16384 16384 0 0 0 0 1 0 0 malloc-16384 16384 0 0 0 0 1 0 0 malloc-16384 16384 0 0 0 0 1 0 0 malloc-8192 8192 0 0 0 0 1 0 0 malloc-384 384 0 0 0 0 30 0 0 pcpu-32 32 0 0 0 0 254 0 0 pcpu-4 4 0 0 0 0 254 0 0 fakepg 104 0 0 0 0 126 0 0 UMA Hash 256 0 0 0 0 62 0 0