login: panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 75687 16487 0 0x2 0x4000000 0 syz-fuzzer * 5698 32629 0 0x12 0 1 sshd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020e3f130,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020e3f130) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 pool_cache_list_alloc sys/kern/subr_pool.c:1809 [inline] pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 sys/kern/subr_pool.c:1879 pool_get(ffffffff828bd1a8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806f682640,9,fffffd80643d5d00,0,0,ffff800020e40c40) at tcp_usrreq+0xa55 sosend(fffffd806f682640,0,ffff800020e3f798,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40c40,4,ffff800020e3f798,0,ffff800020e3f880) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 end trace frame: 0xffff800020e3f820, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020e3f130,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020e3f130) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 pool_cache_list_alloc sys/kern/subr_pool.c:1809 [inline] pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 sys/kern/subr_pool.c:1879 pool_get(ffffffff828bd1a8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806f682640,9,fffffd80643d5d00,0,0,ffff800020e40c40) at tcp_usrreq+0xa55 sosend(fffffd806f682640,0,ffff800020e3f798,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40c40,4,ffff800020e3f798,0,ffff800020e3f880) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40c40,ffff800020e3f830,ffff800020e3f880) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e3f900) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e3f900) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb9c90, count: -17 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e3eea0 rbx 0xffff800020e3ef50 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8137073f kprintf+0x16f r9 0x1 r10 0x2 r11 0xad627c6ae95a2753 r12 0x3000000008 r13 0xffff800020e3eeb0 r14 0x100 r15 0x1 rip 0xffffffff81a9dea8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e3ee90 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (sshd) pid=5698 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e41390,0xffff800020e41880 process=0xffff800020e387c8 user=0xffff800020e3a000, vmspace=0xfffffd806e8e4a18 estcpu=0, cpticks=2, pctcpu=0.2 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10928 370582 1 0 3 0x100083 ttyin getty 2842 2789 16487 0 3 0x82 nanosleep syz-executor.0 59272 131533 0 0 3 0x14200 acct acct 90271 263208 16487 0 2 0x2 syz-executor.1 16487 267766 62876 0 3 0x82 thrsleep syz-fuzzer 16487 506526 62876 0 3 0x4000082 nanosleep syz-fuzzer 16487 75687 62876 0 7 0x4000002 syz-fuzzer 16487 18467 62876 0 3 0x4000082 thrsleep syz-fuzzer 16487 278453 62876 0 3 0x4000082 thrsleep syz-fuzzer 16487 17528 62876 0 3 0x4000082 thrsleep syz-fuzzer 16487 166918 62876 0 3 0x4000082 thrsleep syz-fuzzer 16487 161430 62876 0 2 0x4000082 syz-fuzzer 16487 271369 62876 0 2 0x4000002 syz-fuzzer 16487 50966 62876 0 3 0x4000082 thrsleep syz-fuzzer 62876 101734 32629 0 3 0x10008a pause ksh *32629 5698 87082 0 7 0x12 sshd 87082 270785 1 0 3 0x80 select sshd 28227 100257 4039 74 3 0x100092 bpf pflogd 4039 323311 1 0 3 0x80 netio pflogd 18665 276867 36747 73 3 0x100090 kqread syslogd 36747 250377 1 0 3 0x100082 netio syslogd 6590 301730 0 0 3 0x14200 bored smr 78446 243207 0 0 2 0x14200 zerothread 65007 408949 0 0 3 0x14200 aiodoned aiodoned 55654 178699 0 0 3 0x14200 syncer update 88121 49831 0 0 3 0x14200 cleaner cleaner 57834 37394 0 0 3 0x14200 reaper reaper 81217 64936 0 0 3 0x14200 pgdaemon pagedaemon 53574 121394 0 0 3 0x14200 bored crynlk 50494 418890 0 0 3 0x14200 bored crypto 80188 82081 0 0 3 0x40014200 acpi0 acpi0 21140 185016 0 0 3 0x40014200 idle1 23412 9157 0 0 2 0x14200 softnet 12599 211298 0 0 3 0x14200 bored systqmp 1136 346413 0 0 3 0x14200 bored systq 61268 422721 0 0 3 0x40014200 bored softclock 98508 40217 0 0 3 0x40014200 idle0 1 173098 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff828c7aa8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x3ab sys/kern/sched_bsd.c:438 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] #4 sleep_finish_all+0x32 sys/kern/kern_synch.c:393 #5 rwsleep+0x11b sys/kern/kern_synch.c:313 #6 thrsleep+0x3f2 sys/kern/kern_synch.c:736 #7 sys___thrsleep+0xb5 sys/kern/kern_synch.c:777 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 CPU 1: exclusive mutex mbufpl r = 0 (0xffffffff828bd2a0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 pool_cache_get+0xa3 pl_enter_try sys/kern/subr_pool.c:109 [inline] #2 pool_cache_get+0xa3 pool_list_enter sys/kern/subr_pool.c:1789 [inline] #2 pool_cache_get+0xa3 pool_cache_list_alloc sys/kern/subr_pool.c:1806 [inline] #2 pool_cache_get+0xa3 sys/kern/subr_pool.c:1879 #3 pool_get+0x91 sys/kern/subr_pool.c:572 #4 m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] #4 m_copym+0x174 sys/kern/uipc_mbuf.c:667 #5 tcp_output+0x15ba sys/netinet/tcp_output.c:673 #6 tcp_usrreq+0xa55 #7 sosend+0x671 sys/kern/uipc_socket.c:555 #8 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #9 sys_write+0x83 sys/kern/sys_generic.c:285 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 Process 90271 (syz-executor.1) thread 0xffff800020ddd5f8 (263208) exclusive rrwlock inode r = 0 (0xfffffd807acb0700) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b1fbf78) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #10 namei+0x63c sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 Process 16487 (syz-fuzzer) thread 0xffff800020e40280 (75687) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828cdac0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x392 sys/kern/sched_bsd.c:435 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] #4 sleep_finish_all+0x32 sys/kern/kern_synch.c:393 #5 rwsleep+0x11b sys/kern/kern_synch.c:313 #6 thrsleep+0x3f2 sys/kern/kern_synch.c:736 #7 sys___thrsleep+0xb5 sys/kern/kern_synch.c:777 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 Process 32629 (sshd) thread 0xffff800020e40c40 (5698) exclusive rwlock netlock r = 0 (0xffffffff826cb878) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:543 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive mutex mbufpl r = 0 (0xffffffff828bd2a0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 pool_cache_get+0xa3 pl_enter_try sys/kern/subr_pool.c:109 [inline] #2 pool_cache_get+0xa3 pool_list_enter sys/kern/subr_pool.c:1789 [inline] #2 pool_cache_get+0xa3 pool_cache_list_alloc sys/kern/subr_pool.c:1806 [inline] #2 pool_cache_get+0xa3 sys/kern/subr_pool.c:1879 #3 pool_get+0x91 sys/kern/subr_pool.c:572 #4 m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] #4 m_copym+0x174 sys/kern/uipc_mbuf.c:667 #5 tcp_output+0x15ba sys/netinet/tcp_output.c:673 #6 tcp_usrreq+0xa55 #7 sosend+0x671 sys/kern/uipc_socket.c:555 #8 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #9 sys_write+0x83 sys/kern/sys_generic.c:285 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9509 6609K 7507K 78643K 11892 0 pcb 13 8K 8K 78643K 65 0 rtable 118 7K 8K 78643K 386 0 ifaddr 69 15K 15K 78643K 133 0 sysctl 0 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 63 0 ioctlops 0 0K 4K 78643K 1528 0 iov 0 0K 36K 78643K 53 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1566 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 79 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 422 0 sigio 0 0K 0K 78643K 6 0 proc 57 51K 95K 78643K 541 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 12 0 in_multi 70 3K 3K 78643K 111 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 254 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 126 55K 55K 78643K 2271 0 UVM aobj 24 4K 4K 78643K 26 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 23 0 NDP 9 0K 0K 78643K 29 0 temp 100 3854K 3921K 78643K 9286 0 kqueue 3 4K 22K 78643K 21 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 49 0 49 2 1 1 1 0 8 1 rtentry 112 74 0 31 2 0 2 2 0 8 0 unpcb 120 445 0 437 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 547 0 547 1 1 0 1 0 8 0 tcpcb 544 72 0 68 1 0 1 1 0 8 0 inpcb 296 420 0 414 4 2 2 2 0 8 1 rttmr 72 3 0 3 1 1 0 1 0 8 0 nd6 48 14 0 8 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 17 0 11 1 0 1 1 0 8 0 pfpktdelay 56 14 0 14 2 2 0 1 0 8 0 pfstitem 24 14 0 10 1 0 1 1 0 8 0 pfstkey 112 14 0 10 1 0 1 1 0 8 0 pfstate 328 13 0 10 2 0 2 2 0 8 0 pfrule 1360 29 0 17 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 302 0 101 13 0 13 13 0 8 0 art_table 32 304 0 101 2 0 2 2 0 8 0 art_node 16 73 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 16 1 0 1 1 0 8 0 semapl 112 77 0 67 1 0 1 1 0 8 0 shmpl 112 24 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2010 0 603 89 0 89 89 0 8 0 ffsino 272 2010 0 603 94 0 94 94 0 8 0 nchpl 144 2858 0 1262 60 0 60 60 0 8 0 uvmvnodes 72 2358 0 0 43 0 43 43 0 8 0 vnodes 208 2358 0 0 125 0 125 125 0 8 0 namei 1024 8254 0 8254 3 2 1 1 0 8 1 percpumem 16 42 0 10 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 7 0 2 1 0 1 1 0 8 0 scxspl 192 8381 0 8381 10 7 3 7 0 8 3 plimitpl 152 31 0 24 1 0 1 1 0 8 0 sigapl 424 636 0 607 4 0 4 4 0 8 0 futexpl 56 6546 0 6546 3 2 1 1 0 8 1 knotepl 112 143 0 124 2 1 1 2 0 8 0 kqueuepl 144 61 0 59 1 0 1 1 0 8 0 pipelkpl 48 139 0 129 1 0 1 1 0 8 0 pipepl 120 278 0 259 1 0 1 1 0 8 0 fdescpl 496 620 0 607 3 0 3 3 0 8 0 filepl 152 3930 0 3840 6 1 5 5 0 8 1 lockfpl 104 93 0 93 2 1 1 1 0 8 1 lockfspl 48 35 0 35 2 1 1 1 0 8 1 sessionpl 112 20 0 11 1 0 1 1 0 8 0 pgrppl 48 55 0 46 1 0 1 1 0 8 0 ucredpl 96 352 0 344 1 0 1 1 0 8 0 zombiepl 144 607 0 606 3 2 1 1 0 8 0 processpl 984 636 0 606 6 1 5 5 0 8 0 procpl 624 1429 0 1390 4 0 4 4 0 8 0 sockpl 400 916 0 902 9 6 3 4 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 196 0 0 24 0 24 24 0 8 0 mtagpl 96 146 0 0 4 0 4 4 0 8 0 mbufpl 256 416 0 0 25 0 25 25 0 8 0 bufpl 280 4253 0 131 295 0 295 295 0 8 0 anonpl 16 78701 0 62982 88 17 71 83 0 124 0 amapchunkpl 152 4504 0 4353 33 13 20 20 0 158 12 amappl16 192 3117 0 2221 61 14 47 56 0 8 0 amappl15 184 9 0 8 2 1 1 1 0 8 0 amappl14 176 29 0 23 1 0 1 1 0 8 0 amappl13 168 36 0 33 1 0 1 1 0 8 0 amappl12 160 14 0 9 1 0 1 1 0 8 0 amappl11 152 64 0 53 1 0 1 1 0 8 0 amappl10 144 334 0 331 1 0 1 1 0 8 0 amappl9 136 439 0 437 1 0 1 1 0 8 0 amappl8 128 445 0 404 2 0 2 2 0 8 0 amappl7 120 441 0 429 1 0 1 1 0 8 0 amappl6 112 24 0 21 1 0 1 1 0 8 0 amappl5 104 530 0 517 1 0 1 1 0 8 0 amappl4 96 507 0 478 1 0 1 1 0 8 0 amappl3 88 118 0 110 1 0 1 1 0 8 0 amappl2 80 3943 0 3889 2 0 2 2 0 8 0 amappl1 72 23526 0 23129 23 13 10 18 0 8 0 amappl 80 1706 0 1663 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 25 0 2 1 0 1 1 0 8 0 uaddrrnd 24 624 0 607 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 624 0 607 1 0 1 1 0 8 0 vmmpekpl 168 8468 0 8429 3 0 3 3 0 8 0 vmmpepl 168 82524 0 80644 149 30 119 125 0 357 27 vmsppl 368 623 0 607 2 0 2 2 0 8 0 pdppl 4096 1255 0 1218 7 1 6 6 0 8 0 pvpl 32 232557 0 214347 204 23 181 197 0 265 20 pmappl 232 623 0 607 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 284 0 12 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff826f4ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828cd8b8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff828cd8b8) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff800020e40280,ffff800020e402e0,c00041ceb0,ffffffff8240bfae,ffffffff8179e090,74) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020e8ba50) at syscall+0x397 mi_syscall sys/sys/syscall_mi.h:81 [inline] syscall(ffff800020e8ba50) at syscall+0x397 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00041cec8, count: 4 ddb{0}> trace x86_ipi_db(ffffffff826f4ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828cd8b8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(9fd1c,9fd1b) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff828cd8b8) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff800020e40280,ffff800020e402e0,c00041ceb0,ffffffff8240bfae,ffffffff8179e090,74) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020e8ba50) at syscall+0x397 mi_syscall sys/sys/syscall_mi.h:81 [inline] syscall(ffff800020e8ba50) at syscall+0x397 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00041cec8, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020e3f130,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020e3f130) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 pool_cache_list_alloc sys/kern/subr_pool.c:1809 [inline] pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 sys/kern/subr_pool.c:1879 pool_get(ffffffff828bd1a8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806f682640,9,fffffd80643d5d00,0,0,ffff800020e40c40) at tcp_usrreq+0xa55 sosend(fffffd806f682640,0,ffff800020e3f798,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40c40,4,ffff800020e3f798,0,ffff800020e3f880) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 end trace frame: 0xffff800020e3f820, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020e3f130,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020e3f130) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 pool_cache_list_alloc sys/kern/subr_pool.c:1809 [inline] pool_cache_get(ffffffff828bd1a8) at pool_cache_get+0x118 sys/kern/subr_pool.c:1879 pool_get(ffffffff828bd1a8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068591600,62c,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806f682640,9,fffffd80643d5d00,0,0,ffff800020e40c40) at tcp_usrreq+0xa55 sosend(fffffd806f682640,0,ffff800020e3f798,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40c40,4,ffff800020e3f798,0,ffff800020e3f880) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40c40,ffff800020e3f830,ffff800020e3f880) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e3f900) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e3f900) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb9c90, count: -17