uvm_fault(0xffffffff827de950, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff827de950, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020e040e0, count: 0 ddb{1}> trace pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82907dc0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad9aa0) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae2af8,9,fffffd806d4c7e00,0,0,ffff800020e40600) at tcp_usrreq+0xa55 sosend(fffffd806eae2af8,0,ffff800020e04518,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40600,4,ffff800020e04518,0,ffff800020e04600) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40600,ffff800020e045b0,ffff800020e04600) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e04680) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e04680) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbe110, count: -10 ddb{1}> show registers rdi 0 rsi 0x7 rbp 0xffff800020e04020 rbx 0x6598ffd3796f1e7 rdx 0xffff800020e40600 rcx 0 rax 0 r8 0xffffffff81a3802a tcp_output+0xbea r9 0x5 r10 0x3 r11 0xc3ce82ba1a35902a r12 0xffffffff82907dc0 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009d00 rip 0xffffffff8206b211 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020e03fc0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (sshd) pid=450966 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e3f9d0,0xffff800020e3f020 process=0xffff800020e6afa0 user=0xffff800020dff000, vmspace=0xfffffd807f000b80 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48630 373481 80092 0 3 0x82 nanosleep syz-executor.1 98072 158969 0 0 3 0x14200 bored sosplice 86008 237025 80092 0 3 0x2 biowait syz-executor.0 80092 508050 75199 0 3 0x82 thrsleep syz-fuzzer 80092 64167 75199 0 3 0x4000082 nanosleep syz-fuzzer 80092 221178 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 354699 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 163562 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 453005 75199 0 3 0x4000082 kqread syz-fuzzer 80092 246763 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 32989 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 176766 75199 0 3 0x4000082 thrsleep syz-fuzzer 80092 29342 75199 0 3 0x4000082 thrsleep syz-fuzzer 75199 290787 29436 0 3 0x10008a pause ksh *29436 450966 19840 0 7 0x12 sshd 80327 230467 1 0 3 0x100083 ttyin getty 19840 520979 1 0 3 0x80 select sshd 40429 136793 15801 74 3 0x100092 bpf pflogd 15801 119451 1 0 3 0x80 netio pflogd 42863 207349 90848 73 3 0x100090 kqread syslogd 90848 239407 1 0 3 0x100082 netio syslogd 62656 184129 1 77 3 0x100090 poll dhclient 63836 11150 1 0 3 0x80 poll dhclient 29474 328137 0 0 3 0x14200 bored smr 50352 191584 0 0 3 0x14200 pgzero zerothread 30832 242330 0 0 3 0x14200 aiodoned aiodoned 62322 162666 0 0 3 0x14200 syncer update 76722 93475 0 0 3 0x14200 cleaner cleaner 63200 399515 0 0 3 0x14200 reaper reaper 55100 419043 0 0 3 0x14200 pgdaemon pagedaemon 68992 513861 0 0 3 0x14200 bored crynlk 99840 369000 0 0 3 0x14200 bored crypto 89352 495858 0 0 3 0x40014200 acpi0 acpi0 62060 474134 0 0 3 0x40014200 idle1 62213 267199 0 0 7 0x14200 softnet 11384 306321 0 0 3 0x14200 bored systqmp 73582 43696 0 0 3 0x14200 bored systq 97429 472427 0 0 3 0x40014200 bored softclock 50919 432590 0 0 3 0x40014200 idle0 1 497534 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 86008 (syz-executor.0) thread 0xffff800020dddd48 (237025) exclusive rrwlock inode r = 0 (0xfffffd8068ce3810) #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 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068ce3b40) #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 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #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 29436 (sshd) thread 0xffff800020e40600 (450966) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828eb278) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 #2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #3 alltraps_kern_meltdown+0x7b #4 pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] #4 pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 #5 pool_get+0x91 sys/kern/subr_pool.c:572 #6 m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 #7 tcp_output+0x14e6 #8 tcp_usrreq+0xa55 #9 sosend+0x671 sys/kern/uipc_socket.c:555 #10 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #11 sys_write+0x83 sys/kern/sys_generic.c:285 #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 exclusive rwlock netlock r = 0 (0xffffffff82728958) #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 Process 62213 (softnet) thread 0xffff800020d884e0 (267199) shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9544 6684K 6734K 78643K 11119 0 pcb 13 8K 8K 78643K 64 0 rtable 117 13K 13K 78643K 387 0 ifaddr 73 14K 14K 78643K 127 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1518 0 iov 0 0K 32K 78643K 186 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1407 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 1K 78643K 67 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 406 0 sigio 0 0K 0K 78643K 31 0 proc 65 63K 95K 78643K 503 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 29 0 in_multi 56 3K 3K 78643K 125 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 4 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 234 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 118 22K 26K 78643K 2298 0 UVM aobj 14 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 321 0 NDP 12 0K 0K 78643K 28 0 temp 122 3864K 3928K 78643K 4048 0 kqueue 3 4K 9K 78643K 12 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 10 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 47 0 45 1 0 1 1 0 8 0 rtentry 112 79 0 34 2 0 2 2 0 8 0 unpcb 120 402 0 390 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 tcpqe 32 809 0 809 2 2 0 1 0 8 0 tcpcb 544 434 0 428 2 0 2 2 0 8 1 inpcb 296 657 0 648 4 2 2 2 0 8 1 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 20 0 14 1 0 1 1 0 8 0 ppxss 1136 2 0 2 1 0 1 1 0 8 1 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 0 1 1 0 8 1 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 14 0 12 3 2 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 13 0 7 1 0 1 1 0 8 0 pfstkey 112 15 0 9 1 0 1 1 0 8 0 pfstate 328 13 0 7 1 0 1 1 0 8 0 pfrule 1360 31 0 24 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 294 0 84 15 1 14 14 0 8 0 art_table 32 295 0 84 2 0 2 2 0 8 0 art_node 16 78 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 7 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 63 0 53 1 0 1 1 0 8 0 shmpl 112 15 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1876 0 472 90 1 89 89 0 8 0 ffsino 272 1876 0 472 97 3 94 95 0 8 0 nchpl 144 2704 0 1109 60 0 60 60 0 8 0 uvmvnodes 72 2074 0 0 38 0 38 38 0 8 0 vnodes 208 2074 0 0 110 0 110 110 0 8 0 namei 1024 7180 0 7179 2 1 1 1 0 8 0 percpumem 16 38 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 4 2 2 0 1 0 8 0 scxspl 192 7821 0 7820 7 6 1 6 0 8 0 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 619 0 588 4 0 4 4 0 8 0 futexpl 56 5491 0 5491 1 0 1 1 0 8 1 knotepl 112 89 0 70 1 0 1 1 0 8 0 kqueuepl 144 44 0 40 1 0 1 1 0 8 0 pipepl 304 120 0 110 1 0 1 1 0 8 0 fdescpl 496 603 0 588 3 0 3 3 0 8 0 filepl 152 3579 0 3479 7 2 5 5 0 8 1 lockfpl 104 62 0 61 1 0 1 1 0 8 0 lockfspl 48 22 0 21 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 345 0 336 1 0 1 1 0 8 0 zombiepl 144 588 0 587 2 1 1 1 0 8 0 processpl 992 619 0 587 5 0 5 5 0 8 0 procpl 624 1481 0 1440 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 5 0 5 3 2 1 1 0 8 1 sockpl 400 1107 0 1084 7 3 4 4 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 205 0 0 25 0 25 25 0 8 0 mtagpl 96 29 0 0 1 0 1 1 0 8 0 mbufpl 256 238 0 0 15 0 15 15 0 8 0 bufpl 280 4015 0 132 278 0 278 278 0 8 0 anonpl 16 74415 0 58054 76 8 68 75 0 124 0 amapchunkpl 152 4119 0 3972 28 8 20 20 0 158 11 amappl16 192 2290 0 1384 47 1 46 47 0 8 0 amappl15 184 184 0 181 1 0 1 1 0 8 0 amappl14 176 198 0 192 1 0 1 1 0 8 0 amappl13 168 35 0 32 1 0 1 1 0 8 0 amappl12 160 16 0 12 1 0 1 1 0 8 0 amappl11 152 235 0 219 1 0 1 1 0 8 0 amappl10 144 200 0 195 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 366 0 332 2 0 2 2 0 8 0 amappl7 120 266 0 253 1 0 1 1 0 8 0 amappl6 112 23 0 21 2 1 1 1 0 8 0 amappl5 104 326 0 309 1 0 1 1 0 8 0 amappl4 96 685 0 653 1 0 1 1 0 8 0 amappl3 88 296 0 289 1 0 1 1 0 8 0 amappl2 80 3826 0 3764 2 0 2 2 0 8 0 amappl1 72 27111 0 26684 23 13 10 18 0 8 0 amappl 80 1751 0 1708 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 17 0 4 1 0 1 1 0 8 0 uaddrrnd 24 603 0 588 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 603 0 588 1 0 1 1 0 8 0 vmmpekpl 168 8773 0 8740 2 0 2 2 0 8 0 vmmpepl 168 84643 0 82668 151 25 126 126 0 357 34 vmsppl 368 602 0 588 2 0 2 2 0 8 0 pdppl 4096 1213 0 1176 6 0 6 6 0 8 0 pvpl 32 245091 0 225658 186 21 165 181 0 265 3 pmappl 232 602 0 588 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 277 0 12 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82708ff0) 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(ffffffff828eb070) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828eb070) at __mp_lock+0x12e sys/kern/kern_lock.c:147 intr_handler(ffff800020da9800,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f sys/dev/kcov.c:79 if_qstart_compat(ffff80000017b520) at if_qstart_compat+0x1a sys/net/if.c:675 ifq_serialize(ffff80000017b520,ffff80000017b638) at ifq_serialize+0x173 sys/net/ifq.c:113 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82907dc0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82907dc0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad9aa0) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae2af8,9,fffffd806d4c7e00,0,0,ffff800020e40600) at tcp_usrreq+0xa55 sosend(fffffd806eae2af8,0,ffff800020e04518,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40600,4,ffff800020e04518,0,ffff800020e04600) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40600,ffff800020e045b0,ffff800020e04600) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e04680) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e04680) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbe110, count: -10