uvm_fault(0xffffffff8285df78, 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(0xffffffff8285df78, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff82927490) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82927490) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020e04060, count: 0 ddb{1}> trace pool_cache_get(ffffffff82927490) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82927490) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82927490,2) 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(ffff800000ad9cc0) at tcp_output+0x14e6 tcp_usrreq(fffffd806ead6c88,9,fffffd8062d5d400,0,0,ffff800020e40870) at tcp_usrreq+0xa55 sosend(fffffd806ead6c88,0,ffff800020e04498,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40870,4,ffff800020e04498,0,ffff800020e04580) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40870,ffff800020e04530,ffff800020e04580) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e04600) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e04600) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff14f0, count: -10 ddb{1}> show registers rdi 0 rsi 0x7 rbp 0xffff800020e03fa0 rbx 0x76439768d88d4e26 rdx 0xffff800020e40870 rcx 0 rax 0 r8 0xffffffff81f1750a tcp_output+0xbea r9 0x5 r10 0x3 r11 0xebd0e0874247822e r12 0xffffffff82927490 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008e80 rip 0xffffffff8107a6d1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020e03f40 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (sshd) pid=202191 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e3f760,0xffff800020e3f500 process=0xffff8000ffffe018 user=0xffff800020dff000, vmspace=0xfffffd806e8e8008 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43098 288252 61404 0 3 0x2 biowait syz-executor.0 24126 86995 0 0 3 0x14200 bored sosplice 66056 304914 61404 0 3 0x82 nanosleep syz-executor.1 61404 354483 98607 0 3 0x82 thrsleep syz-fuzzer 61404 325507 98607 0 3 0x4000082 nanosleep syz-fuzzer 61404 385341 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 510473 98607 0 3 0x4000082 nanosleep syz-fuzzer 61404 457453 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 148898 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 295457 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 187752 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 145648 98607 0 3 0x4000082 kqread syz-fuzzer 61404 334980 98607 0 3 0x4000082 thrsleep syz-fuzzer 61404 344482 98607 0 3 0x4000082 thrsleep syz-fuzzer 98607 430486 20093 0 3 0x10008a pause ksh *20093 202191 46346 0 7 0x12 sshd 97040 367678 1 0 3 0x100083 ttyin getty 46346 425041 1 0 3 0x80 select sshd 67670 462741 97293 74 3 0x100092 bpf pflogd 97293 365686 1 0 3 0x80 netio pflogd 16087 477896 86418 73 3 0x100090 kqread syslogd 86418 65186 1 0 3 0x100082 netio syslogd 17605 82959 1 77 3 0x100090 poll dhclient 17312 78412 1 0 3 0x80 poll dhclient 8829 175843 0 0 3 0x14200 bored smr 54752 91370 0 0 3 0x14200 pgzero zerothread 29484 175005 0 0 3 0x14200 aiodoned aiodoned 45113 146266 0 0 3 0x14200 syncer update 96130 50790 0 0 3 0x14200 cleaner cleaner 11830 288952 0 0 3 0x14200 reaper reaper 59604 132061 0 0 3 0x14200 pgdaemon pagedaemon 84691 312455 0 0 3 0x14200 bored crynlk 87132 434287 0 0 3 0x14200 bored crypto 42134 295014 0 0 3 0x40014200 acpi0 acpi0 33753 170621 0 0 3 0x40014200 idle1 98938 442932 0 0 7 0x14200 softnet 39318 477830 0 0 3 0x14200 bored systqmp 3706 185462 0 0 3 0x14200 bored systq 44249 194573 0 0 3 0x40014200 bored softclock 47981 377182 0 0 3 0x40014200 idle0 1 3600 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 43098 (syz-executor.0) thread 0xffff800020e09288 (288252) exclusive rrwlock inode r = 0 (0xfffffd806b1f6098) #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 (0xfffffd806b1f6918) #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 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #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 20093 (sshd) thread 0xffff800020e40870 (202191) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828fbd80) #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 (0xffffffff82746ee8) #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 98938 (softnet) thread 0xffff800020d88270 (442932) 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 9535 6422K 6935K 78643K 11421 0 pcb 13 8K 8K 78643K 100 0 rtable 116 6K 8K 78643K 621 0 ifaddr 86 16K 16K 78643K 141 0 sysctl 1 1K 1K 78643K 1 0 counters 43 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1529 0 iov 0 0K 24K 78643K 52 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 76K 77K 78643K 1498 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 89 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 454 0 sigio 0 0K 0K 78643K 4 0 proc 62 63K 95K 78643K 523 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 34 0 in_multi 55 2K 3K 78643K 141 0 ether_multi 1 0K 0K 78643K 15 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 243 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 141 40K 41K 78643K 2466 0 UVM aobj 20 2K 2K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 63 0 NDP 14 0K 0K 78643K 33 0 temp 133 3870K 3941K 78643K 5937 0 kqueue 3 4K 12K 78643K 31 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 13 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 168 0 166 1 0 1 1 0 8 0 rtentry 112 84 0 41 2 0 2 2 0 8 0 unpcb 120 195 0 185 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 220 0 220 1 1 0 1 0 8 0 tcpcb 544 319 0 315 2 1 1 2 0 8 0 inpcb 296 750 0 743 3 1 2 2 0 8 1 nd6 48 19 0 13 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 10 0 9 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 12 1 0 1 1 0 8 0 pfstitem 24 30 0 25 1 0 1 1 0 8 0 pfstkey 112 32 0 27 1 0 1 1 0 8 0 pfstate 328 31 0 26 2 0 2 2 0 8 0 pfrule 1360 32 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 290 0 80 14 0 14 14 0 8 0 art_table 32 291 0 80 2 0 2 2 0 8 0 art_node 16 83 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 14 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 85 0 75 1 0 1 1 0 8 0 shmpl 112 19 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2043 0 639 89 0 89 89 0 8 0 ffsino 272 2043 0 639 95 1 94 95 0 8 0 nchpl 144 2843 0 1257 60 0 60 60 0 8 0 uvmvnodes 72 2267 0 0 42 0 42 42 0 8 0 vnodes 208 2267 0 0 120 0 120 120 0 8 0 namei 1024 8861 0 8861 4 3 1 1 0 8 1 percpumem 16 39 0 7 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 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 8776 0 8774 10 9 1 7 0 8 0 plimitpl 152 46 0 38 1 0 1 1 0 8 0 sigapl 424 667 0 636 4 0 4 4 0 8 0 futexpl 56 7017 0 7017 2 1 1 1 0 8 1 knotepl 112 102 0 83 1 0 1 1 0 8 0 kqueuepl 144 206 0 203 1 0 1 1 0 8 0 pipepl 304 151 0 141 3 2 1 2 0 8 0 fdescpl 496 651 0 636 3 0 3 3 0 8 0 filepl 152 4711 0 4611 8 3 5 6 0 8 1 lockfpl 104 91 0 90 1 0 1 1 0 8 0 lockfspl 48 30 0 29 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 1096 0 1087 1 0 1 1 0 8 0 zombiepl 144 636 0 635 2 1 1 1 0 8 0 processpl 992 667 0 635 5 0 5 5 0 8 0 procpl 624 1615 0 1573 4 0 4 4 0 8 0 sosppl 128 12 0 12 1 1 0 1 0 8 0 sockpl 400 1126 0 1107 6 2 4 4 0 8 2 mcl64k 65536 514 0 0 65 2 63 65 0 8 1 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 176 0 0 21 0 21 21 0 8 0 mtagpl 96 29 0 0 1 0 1 1 0 8 0 mbufpl 256 664 0 0 40 0 40 40 0 8 0 bufpl 280 4292 0 147 297 0 297 297 0 8 0 anonpl 16 98975 0 81805 93 8 85 86 0 124 12 amapchunkpl 152 3757 0 3607 13 6 7 11 0 158 0 amappl16 192 4423 0 3464 76 20 56 61 0 8 7 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 23 0 18 1 0 1 1 0 8 0 amappl13 168 35 0 32 1 0 1 1 0 8 0 amappl12 160 314 0 313 2 1 1 1 0 8 0 amappl11 152 75 0 59 1 0 1 1 0 8 0 amappl10 144 22 0 14 1 0 1 1 0 8 0 amappl9 136 393 0 392 1 0 1 1 0 8 0 amappl8 128 381 0 340 2 0 2 2 0 8 0 amappl7 120 135 0 120 1 0 1 1 0 8 0 amappl6 112 24 0 19 2 1 1 1 0 8 0 amappl5 104 838 0 823 1 0 1 1 0 8 0 amappl4 96 510 0 482 1 0 1 1 0 8 0 amappl3 88 119 0 114 1 0 1 1 0 8 0 amappl2 80 4194 0 4132 2 0 2 2 0 8 0 amappl1 72 24228 0 23800 23 13 10 18 0 8 0 amappl 80 1891 0 1847 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 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 655 0 636 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 655 0 636 1 0 1 1 0 8 0 vmmpekpl 168 8900 0 8862 2 0 2 2 0 8 0 vmmpepl 168 89140 0 87073 147 27 120 132 0 357 19 vmsppl 368 654 0 636 2 0 2 2 0 8 0 pdppl 4096 1317 0 1276 6 0 6 6 0 8 0 pvpl 32 268064 0 248324 204 8 196 197 0 265 28 pmappl 232 654 0 636 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 360 0 12 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8278fff0) 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 __sanitizer_cov_trace_cmp4(ffffffff828fbb78,ffffffff828fbb78) at __sanitizer_cov_trace_cmp4+0x67 sys/dev/kcov.c:137 intr_handler(ffff800020da9100,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_cmp4(ffffffff828fbb78,ffffffff828fbb78) at __sanitizer_cov_trace_cmp4 if_qstart_compat(ffff80000017b520) at if_qstart_compat+0x1a sys/net/if.c:675 ifq_serialize(ffff80000017b520,ffff80000017b630) at ifq_serialize+0x173 sys/net/ifq.c:108 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(ffffffff82927490) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82927490) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82927490,2) 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(ffff800000ad9cc0) at tcp_output+0x14e6 tcp_usrreq(fffffd806ead6c88,9,fffffd8062d5d400,0,0,ffff800020e40870) at tcp_usrreq+0xa55 sosend(fffffd806ead6c88,0,ffff800020e04498,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40870,4,ffff800020e04498,0,ffff800020e04580) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40870,ffff800020e04530,ffff800020e04580) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e04600) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e04600) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff14f0, count: -10