uvm_fault(0xffffffff828b1888, 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(0xffffffff828b1888, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020ec8ae0, count: 0 ddb{1}> trace pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b8f90,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copyback(fffffd806d520b00,80,20,ffff800000ac5320,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd806d520b00,80,20,ffff800000ac5320,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ec8c80) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd80675c1938,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd80675c1938,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rtdeletemsg(fffffd80675c1938,ffff800000af1800,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2c00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in6_unlink_ifa(ffff800000aa2c00,ffff800000af1800) at in6_unlink_ifa+0x580 sys/netinet6/in6.c:948 in6_purgeaddr(ffff800000aa2c00) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000af1800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000af1800) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000af1800) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 ifioctl(fffffd80648af7f0,80206979,ffff800020ec9250,ffff800020e22018) at ifioctl+0x3ea sys/net/if.c:1929 soo_ioctl(fffffd80668e1570,80206979,ffff800020ec9250,ffff800020e22018) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e22018,ffff800020ec9368,ffff800020ec93b0) at sys_ioctl+0x4a5 syscall(ffff800020ec9430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ec9430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4b70c141200, count: -17 ddb{1}> show registers rdi 0xffffffff81f7549a pool_cache_get+0x6a rsi 0x3b761 acpi_pdirpa+0x275c9 rbp 0xffff800020ec8a20 rbx 0xdfe57600ca0e76eb rdx 0x3b762 acpi_pdirpa+0x275ca rcx 0xffff800021ede000 rax 0xffff800021ede000 r8 0x2 r9 0x5 r10 0xa10333f0fd5b953e r11 0x9e8c9ccd0cec8018 r12 0xffffffff828b8f90 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009d80 rip 0xffffffff81f755e1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020ec89c0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.1) pid=284102 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e229d8,0xffff800020e22508 process=0xffff800020e08f80 user=0xffff800020ec4000, vmspace=0xfffffd807f000730 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12449 237211 99026 0 3 0x80 nanosleep syz-executor.1 *12449 284102 99026 0 7 0x4000000 syz-executor.1 12449 334229 99026 0 3 0x4000080 fsleep syz-executor.1 24956 26368 0 0 3 0x14200 bored sosplice 99026 150667 81074 0 3 0x82 nanosleep syz-executor.1 16450 200171 81074 0 3 0x82 piperd syz-executor.0 81074 442852 88772 0 7 0x2 syz-fuzzer 81074 126688 88772 0 3 0x4000082 nanosleep syz-fuzzer 81074 274966 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 237465 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 522409 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 507224 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 518754 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 309522 88772 0 3 0x4000082 kqread syz-fuzzer 81074 183483 88772 0 3 0x4000082 thrsleep syz-fuzzer 81074 215706 88772 0 3 0x4000082 thrsleep syz-fuzzer 88772 376804 39964 0 3 0x10008a pause ksh 39964 36787 4408 0 3 0x92 select sshd 86533 388948 1 0 3 0x100083 ttyin getty 4408 489492 1 0 3 0x80 select sshd 11407 488354 50539 74 3 0x100092 bpf pflogd 50539 7720 1 0 3 0x80 netio pflogd 48300 442911 55863 73 3 0x100090 kqread syslogd 55863 189143 1 0 3 0x100082 netio syslogd 28688 214313 1 77 2 0x100090 dhclient 31672 456814 1 0 3 0x80 poll dhclient 94313 116608 0 0 3 0x14200 bored smr 52162 109311 0 0 3 0x14200 pgzero zerothread 18660 294738 0 0 3 0x14200 aiodoned aiodoned 70567 149784 0 0 3 0x14200 syncer update 95564 388677 0 0 3 0x14200 cleaner cleaner 71163 48826 0 0 3 0x14200 reaper reaper 69168 79802 0 0 3 0x14200 pgdaemon pagedaemon 9416 361726 0 0 3 0x14200 bored crynlk 97855 462410 0 0 3 0x14200 bored crypto 91934 202234 0 0 3 0x40014200 acpi0 acpi0 76773 279726 0 0 3 0x40014200 idle1 9170 104574 0 0 3 0x14200 bored softnet 47078 123667 0 0 2 0x14200 systqmp 43559 245997 0 0 3 0x14200 bored systq 32792 482304 0 0 3 0x40014200 bored softclock 27942 324907 0 0 3 0x40014200 idle0 1 284746 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 12449 (syz-executor.1) thread 0xffff800020e22018 (284102) exclusive rwlock netlock r = 0 (0xffffffff826e5d18) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 if_detach+0x70 sys/net/if.c:1120 #2 tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 #3 ifioctl+0x3ea sys/net/if.c:1929 #4 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #5 sys_ioctl+0x4a5 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829232d0) #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 cond_wait+0x76 sys/kern/kern_synch.c:907 #5 smr_barrier_impl+0xf9 sys/kern/kern_smr.c:271 #6 tun_clone_destroy+0x136 sys/net/if_tun.c:312 #7 ifioctl+0x3ea sys/net/if.c:1929 #8 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #9 sys_ioctl+0x4a5 #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 9493 6405K 6792K 78643K 10788 0 pcb 13 8K 8K 78643K 49 0 rtable 74 3K 7K 78643K 300 0 ifaddr 50 11K 13K 78643K 111 0 counters 41 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1503 0 iov 0 0K 12K 78643K 28 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1298 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 21 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 199 0 proc 62 63K 83K 78643K 467 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 30 1K 2K 78643K 99 0 ether_multi 1 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 219 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 109 22K 23K 78643K 1539 0 UVM aobj 11 2K 2K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 42 0 NDP 8 0K 0K 78643K 18 0 temp 81 3857K 3921K 78643K 2967 0 kqueue 3 4K 9K 78643K 13 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 6 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 51 0 24 2 0 2 2 0 8 0 unpcb 120 150 0 139 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 9 0 9 1 1 0 1 0 8 0 tcpcb 544 76 0 71 2 1 1 2 0 8 0 inpcb 296 522 0 512 4 2 2 3 0 8 1 nd6 48 12 0 11 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pfstscr 40 4 0 4 1 0 1 1 0 8 1 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 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 16 0 16 1 1 0 1 0 8 0 pftag 88 2 0 2 1 0 1 1 0 8 1 pfstitem 24 32 0 7 1 0 1 1 0 8 0 pfstkey 112 38 0 13 1 0 1 1 0 8 0 pfstate 328 33 0 8 3 0 3 3 0 8 0 pfrule 1360 25 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 190 0 46 12 0 12 12 0 8 1 art_table 32 191 0 46 2 0 2 2 0 8 0 art_node 16 50 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 14 1 0 1 1 0 8 0 semupl 112 3 0 3 2 1 1 1 0 8 1 semapl 112 13 0 4 1 0 1 1 0 8 0 shmpl 112 15 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1661 0 257 89 0 89 89 0 8 1 ffsino 272 1661 0 257 94 0 94 94 0 8 0 nchpl 144 2115 0 505 60 0 60 60 0 8 0 uvmvnodes 72 1757 0 0 32 0 32 32 0 8 0 vnodes 208 1757 0 0 93 0 93 93 0 8 0 namei 1024 5637 0 5637 2 1 1 1 0 8 1 percpumem 16 37 0 6 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 0 1 1 0 8 1 pfiaddrpl 120 4 0 4 1 1 0 1 0 8 0 scxspl 192 6218 0 6218 10 7 3 7 0 8 3 plimitpl 152 19 0 11 1 0 1 1 0 8 0 sigapl 424 415 0 383 4 0 4 4 0 8 0 futexpl 56 2911 0 2910 2 1 1 1 0 8 0 knotepl 112 70 0 51 1 0 1 1 0 8 0 kqueuepl 144 18 0 16 1 0 1 1 0 8 0 pipepl 304 115 0 105 3 1 2 2 0 8 1 fdescpl 496 399 0 383 3 0 3 3 0 8 0 filepl 152 2374 0 2271 6 1 5 6 0 8 1 lockfpl 104 43 0 42 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 153 0 144 1 0 1 1 0 8 0 zombiepl 144 383 0 383 1 0 1 1 0 8 1 processpl 984 415 0 383 5 0 5 5 0 8 0 procpl 624 786 0 743 4 0 4 4 0 8 0 srpgc 64 4 0 4 2 1 1 1 0 8 1 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 701 0 678 6 2 4 5 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 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 177 0 0 22 0 22 22 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 184 0 0 11 0 11 11 0 8 0 bufpl 280 3634 0 134 250 0 250 250 0 8 0 anonpl 16 49707 0 33304 68 1 67 67 0 124 1 amapchunkpl 152 1987 0 1835 8 1 7 8 0 158 0 amappl16 192 1708 0 828 45 0 45 45 0 8 0 amappl15 184 4 0 1 1 0 1 1 0 8 0 amappl14 176 24 0 18 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 25 0 22 1 0 1 1 0 8 0 amappl11 152 224 0 206 1 0 1 1 0 8 0 amappl10 144 18 0 15 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 330 0 308 1 0 1 1 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 186 0 181 1 0 1 1 0 8 0 amappl5 104 292 0 274 1 0 1 1 0 8 0 amappl4 96 496 0 466 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 2180 0 2110 2 0 2 2 0 8 0 amappl1 72 18595 0 18162 23 13 10 18 0 8 0 amappl 80 1032 0 987 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 16 0 6 1 0 1 1 0 8 0 uaddrrnd 24 401 0 385 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 401 0 385 1 0 1 1 0 8 0 vmmpekpl 168 7028 0 6994 2 0 2 2 0 8 0 vmmpepl 168 55239 0 53227 115 17 98 112 0 357 9 vmsppl 368 400 0 385 2 0 2 2 0 8 0 pdppl 4096 809 0 770 7 1 6 6 0 8 1 pvpl 32 168835 0 149293 165 0 165 165 0 265 6 pmappl 232 400 0 385 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 0 8 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(ffffffff827a9ff0) 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(89e70,89e71) at __sanitizer_cov_trace_cmp4+0x44 kd_curproc sys/dev/kcov.c:411 [inline] __sanitizer_cov_trace_cmp4(89e70,89e71) at __sanitizer_cov_trace_cmp4+0x44 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(89e70,89e71) at __sanitizer_cov_trace_cmp4+0x44 sys/dev/kcov.c:135 __mp_lock(ffffffff829230c8) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829230c8) at __mp_lock+0x139 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0xc002e48c10, count: -7 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b8f90) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b8f90,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copyback(fffffd806d520b00,80,20,ffff800000ac5320,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd806d520b00,80,20,ffff800000ac5320,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ec8c80) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd80675c1938,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd80675c1938,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rtdeletemsg(fffffd80675c1938,ffff800000af1800,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000aa2c00) at rt_ifa_purge+0x104 sys/net/route.c:1320 in6_unlink_ifa(ffff800000aa2c00,ffff800000af1800) at in6_unlink_ifa+0x580 sys/netinet6/in6.c:948 in6_purgeaddr(ffff800000aa2c00) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000af1800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000af1800) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000af1800) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 ifioctl(fffffd80648af7f0,80206979,ffff800020ec9250,ffff800020e22018) at ifioctl+0x3ea sys/net/if.c:1929 soo_ioctl(fffffd80668e1570,80206979,ffff800020ec9250,ffff800020e22018) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e22018,ffff800020ec9368,ffff800020ec93b0) at sys_ioctl+0x4a5 syscall(ffff800020ec9430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ec9430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4b70c141200, count: -17