panic: pool_do_get: shmpl free list modified: page 0xfffffd8068b67000; item addr 0xfffffd8068b67548; offset 0x0=0x0 != 0x69566bd8299ad9fe Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 323181 75503 0 0 0 0 syz-executor *344227 51698 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833af1da) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839b6048,2,ffff80002a7dd9f8) at pool_do_get+0x597 sys/kern/subr_pool.c:743 pool_get(ffffffff839b6048,2) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003a40d4e0,ffff80002a7ddc50,80,ffff80002a7ddba0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003a40d4e0,ffff80002a7ddc50,ffff80002a7ddba0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80002a7ddc50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7ddc50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3ca89775860, count: 7 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 *cpu1: pool_do_get: shmpl free list modified: page 0xfffffd8068b67000; item addr 0xfffffd8068b67548; offset 0x0=0x0 != 0x69566bd8299ad9fe ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833af1da) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839b6048,2,ffff80002a7dd9f8) at pool_do_get+0x597 sys/kern/subr_pool.c:743 pool_get(ffffffff839b6048,2) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003a40d4e0,ffff80002a7ddc50,80,ffff80002a7ddba0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003a40d4e0,ffff80002a7ddc50,ffff80002a7ddba0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80002a7ddc50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7ddc50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3ca89775860, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a7dd820 rbx 0xffff8000299eeddf rdx 0xffff800001474140 rcx 0xffff80003a40d4e0 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x34ee9842219518e1 r11 0x8299a62c2853ad0f r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff8271f805 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a7dd810 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=344227 pid=51698 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a40da10,0xffff80003a40d788 process=0xffff80002a3d2698 user=0xffff80002a7d8000, vmspace=0xfffffd806b9905d0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63410 377897 82613 0 2 0 syz-executor 63410 416533 82613 0 3 0x4000080 fsleep syz-executor 63410 13394 82613 0 2 0x4000000 syz-executor 7845 355139 75342 0 2 0 syz-executor 7845 274792 75342 0 2 0x4000000 syz-executor 95836 428300 37754 60929 2 0x10 syz-executor 95836 286787 37754 60929 3 0x4000090 fsleep syz-executor 75503 323181 23739 0 7 0 syz-executor 75503 434830 23739 0 3 0x4000080 fsleep syz-executor 51698 505917 67497 0 2 0 syz-executor *51698 344227 67497 0 7 0x4000000 syz-executor 98244 168516 27777 0 3 0x2 biowait syz-executor 85343 237115 0 0 3 0x14200 acct acct 82613 308259 27777 0 3 0x82 nanoslp syz-executor 37754 428030 27777 0 3 0x82 nanoslp syz-executor 32028 240474 27777 0 3 0x82 wait syz-executor 60441 148151 0 0 3 0x14200 bored sosplice 67497 72906 27777 0 3 0x82 nanoslp syz-executor 75342 122530 27777 0 3 0x82 nanoslp syz-executor 97028 386801 27777 0 3 0x2 biowait syz-executor 23739 236352 27777 0 3 0x82 nanoslp syz-executor 27777 265841 45441 0 3 0x82 kqread syz-executor 45441 413187 99210 0 3 0x10008a sigsusp ksh 99210 72410 94574 0 3 0x98 kqread sshd-session 94574 252636 50459 0 3 0x92 kqread sshd-session 1684 516371 1 0 3 0x100083 ttyopn getty 50459 123206 1 0 3 0x88 kqread sshd 15117 1597 67729 74 3 0x1100092 bpf pflogd 67729 214322 1 0 3 0x80 sbwait pflogd 78196 23028 67376 73 3 0x1100090 kqread syslogd 67376 278482 1 0 3 0x100082 sbwait syslogd 77135 212159 1 0 3 0x100080 kqread resolvd 7948 351978 10485 77 3 0x100092 kqread dhcpleased 65548 201644 10485 77 3 0x100092 kqread dhcpleased 10485 23996 1 0 3 0x80 kqread dhcpleased 63635 332534 0 0 3 0x14200 bored smr 2085 156343 0 0 2 0x14200 zerothread 43920 394708 0 0 3 0x14200 aiodoned aiodoned 86377 109902 0 0 3 0x14200 syncer update 7898 359216 0 0 3 0x14200 cleaner cleaner 64916 355351 0 0 3 0x14200 reaper reaper 83755 403695 0 0 3 0x14200 pgdaemon pagedaemon 79408 480134 0 0 3 0x14200 bored viomb 37232 5027 0 0 3 0x40014200 acpi0 acpi0 52513 60008 0 0 3 0x40014200 idle1 37305 25531 0 0 3 0x14200 bored softnet1 31544 142397 0 0 3 0x14200 bored softnet0 39382 358230 0 0 3 0x14200 bored systqmp 46535 15297 0 0 3 0x14200 bored systq 39213 199591 0 0 3 0x14200 tmoslp softclockmp 43436 321609 0 0 3 0x40014200 tmoslp softclock 1192 428890 0 0 3 0x40014200 idle0 1 245295 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff839b6060) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #7 Xsyscall+0x128 Process 63410 (syz-executor) thread 0xffff8000fffee2b0 (13394) exclusive rwlock fdlock r = 0 (0xffff8000393ffb40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #4 Xsyscall+0x128 Process 75503 (syz-executor) thread 0xffff80003a40d778 (323181) exclusive rwlock uobjlk r = 0 (0xfffffd806b991128) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:699 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b7e76d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 Process 51698 (syz-executor) thread 0xffff80003a40d4e0 (344227) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8390bf70) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:746 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff839b6060) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #7 Xsyscall+0x128 Process 98244 (syz-executor) thread 0xffff80003a40cd18 (168516) exclusive rrwlock inode r = 0 (0xfffffd806e158418) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e156798) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #13 Xsyscall+0x128 Process 97028 (syz-executor) thread 0xffff8000fffef4d8 (386801) exclusive rrwlock inode r = 0 (0xfffffd806e308348) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ce68c60) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10247 11125K 12436K 166960K 13033 0 pcb 17 16K 17K 166960K 306 0 rtable 194 9K 10K 166960K 497 0 pf 38 18K 82K 166960K 166 0 ifaddr 39 6K 8K 166960K 117 0 ifgroup 55 2K 2K 166960K 182 0 sysctl 4 1K 9K 166960K 16 0 counters 68 36K 38K 166960K 206 0 ioctlops 0 0K 4K 166960K 1782 0 iov 0 0K 16K 166960K 67 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1494 94K 95K 166960K 2456 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 62 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 1354 0 sigio 0 0K 0K 166960K 30 0 proc 72 115K 180K 166960K 788 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 178 0 in_multi 80 6K 7K 166960K 200 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 791 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 227 151K 169K 166960K 13784 0 UVM aobj 53 2K 2K 166960K 56 0 pinsyscall 41 82K 98K 166960K 2569 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 71 0 NDP 12 0K 1K 166960K 83 0 temp 77 8652K 8780K 166960K 52504 0 kqueue 14 22K 30K 166960K 258 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 141 0 138 1 0 1 1 0 8 0 rtentry 176 166 0 92 5 0 5 5 0 8 0 unpcb 144 665 0 647 5 4 1 4 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpcb 736 465 0 461 13 12 1 7 0 8 0 arp 136 17 0 8 1 0 1 1 0 8 0 inpcb 328 1410 0 1401 13 11 2 7 0 8 1 nd6 144 31 0 16 1 0 1 1 0 8 0 pkpcb 40 7 0 7 3 2 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 54 0 54 3 2 1 1 0 8 1 pppxif 1504 6 0 6 3 3 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 9 0 4 2 1 1 1 0 482 0 pffrnode 88 8 0 4 2 1 1 1 0 8 0 pffrent 40 18 0 13 2 1 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfstitem 24 21 0 13 1 0 1 1 0 8 0 pfstkey 128 22 0 14 1 0 1 1 0 8 0 pfstate 384 21 0 14 2 0 2 2 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 762 0 420 30 5 25 29 0 8 0 art_table 40 765 0 420 5 0 5 5 0 8 0 art_node 32 164 0 99 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 58 0 48 1 0 1 1 0 8 0 shmpl 112 53 0 4 2 0 2 2 0 8 0 shmpl: pool(0xffffffff839b6048:shmpl): free list modified: page 0xfffffd8068b67000; item ordinal 0; addr 0xfffffd8068b67548 (p 0xfffffd8068b67000); offset 0x0=0x0 shmpl: pool(0xffffffff839b6048:shmpl): page inconsistency: page 0xfffffd8068b67000; item ordinal 1; addr 0x6cbccc6e87eaf9ef dirhash 1024 38 0 21 3 0 3 3 0 8 0 dino2pl 256 3812 0 2302 96 0 96 96 0 8 0 ffsino 296 3812 0 2302 117 0 117 117 0 8 0 nchpl 144 5641 0 3936 64 0 64 64 0 8 0 rtmask 32 8 0 8 3 3 0 1 0 8 0 uvmvnodes 80 4525 0 0 93 0 93 93 0 8 0 vnodes 216 4525 0 0 252 0 252 252 0 8 0 namei 1024 19561 0 19561 3 2 1 2 0 8 1 percpumem 16 118 0 69 1 0 1 1 0 8 0 kstatmem 264 118 0 90 5 3 2 3 0 8 0 scsiplug 72 4 0 4 3 3 0 1 0 8 0 scxspl 216 31630 0 31628 15 14 1 8 1 8 0 plimitpl 152 369 0 351 1 0 1 1 0 8 0 sigapl 424 1638 0 1590 7 0 7 7 0 8 0 knotepl 120 571 0 0 17 0 17 17 0 8 0 kqueuepl 224 656 0 646 6 5 1 5 0 8 0 pipepl 344 283 0 255 9 6 3 6 0 8 0 fdescpl 528 1615 0 1585 3 0 3 3 0 8 0 filepl 160 10074 0 9850 23 12 11 19 0 8 0 lockfpl 104 491 0 487 1 0 1 1 0 8 0 lockfspl 48 208 0 204 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 56 0 39 1 0 1 1 0 8 0 ucredpl 104 1569 0 1555 1 0 1 1 0 8 0 zombiepl 144 1962 0 1961 1 0 1 1 0 8 0 processpl 1232 1638 0 1590 5 0 5 5 0 8 0 procpl 664 3722 0 3668 6 0 6 6 0 8 0 sosppl 168 14 0 14 2 2 0 1 0 8 0 sockpl 752 2257 0 2227 18 13 5 11 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 62 0 0 6 0 6 6 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1257 0 0 78 0 78 78 0 8 0 bufpl 280 13350 0 7207 440 0 440 440 0 8 0 anonpl 32 11727 0 0 95 0 95 95 0 246 0 amapchunkpl 152 46357 0 45900 43 20 23 32 0 158 1 amappl16 200 5786 0 5750 48 34 14 23 0 8 8 amappl15 192 22 0 22 1 1 0 1 0 8 0 amappl14 184 149 0 136 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2337 0 2307 3 1 2 2 0 8 0 amappl11 160 53 0 38 1 0 1 1 0 8 0 amappl10 152 20 0 20 2 2 0 1 0 8 0 amappl9 144 255 0 254 1 0 1 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 122 0 109 1 0 1 1 0 8 0 amappl6 120 235 0 231 1 0 1 1 0 8 0 amappl5 112 147 0 137 1 0 1 1 0 8 0 amappl4 104 316 0 296 1 0 1 1 0 8 0 amappl3 96 8239 0 8147 4 0 4 4 0 8 0 amappl2 88 1885 0 1806 2 0 2 2 0 8 0 amappl1 80 14456 0 13856 16 2 14 15 0 8 0 amappl 88 12800 0 12644 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 2 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 72 55 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1615 0 1585 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1615 0 1585 1 0 1 1 0 8 0 vmmpekpl 168 13915 0 13856 3 0 3 3 0 8 0 vmmpepl 168 107606 0 105661 119 17 102 110 0 357 3 vmsppl 488 1614 0 1585 5 0 5 5 0 8 0 rwobjpl 80 34981 0 29475 117 0 117 117 0 8 1 pdppl 4096 3238 0 3170 106 34 72 82 0 8 4 pvpl 32 20355 0 0 165 1 164 164 0 265 0 pmappl 256 1614 0 1585 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 370 0 61 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83821ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:153 intr_handler(ffff80002a348980,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8390bd68) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8390bd68) at __mp_lock+0x192 sys/kern/kern_lock.c:165 uvm_fault(fffffd806b7e75d8,496d5dd5000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80002a348d10,496d5dd5000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a348d10) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fb94f36c9a0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83821ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:153 intr_handler(ffff80002a348980,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8390bd68) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8390bd68) at __mp_lock+0x192 sys/kern/kern_lock.c:165 uvm_fault(fffffd806b7e75d8,496d5dd5000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80002a348d10,496d5dd5000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a348d10) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fb94f36c9a0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833af1da) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839b6048,2,ffff80002a7dd9f8) at pool_do_get+0x597 sys/kern/subr_pool.c:743 pool_get(ffffffff839b6048,2) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003a40d4e0,ffff80002a7ddc50,80,ffff80002a7ddba0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003a40d4e0,ffff80002a7ddc50,ffff80002a7ddba0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80002a7ddc50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7ddc50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3ca89775860, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833af1da) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839b6048,2,ffff80002a7dd9f8) at pool_do_get+0x597 sys/kern/subr_pool.c:743 pool_get(ffffffff839b6048,2) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003a40d4e0,ffff80002a7ddc50,80,ffff80002a7ddba0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003a40d4e0,ffff80002a7ddc50,ffff80002a7ddba0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80002a7ddc50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7ddc50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3ca89775860, count: -8