panic: pool_do_get: shmpl free list modified: page 0xfffffd806cfe2000; item addr 0xfffffd806cfe22b0; offset 0x2c=0xdead410f Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *136819 93275 32767 0x10 0x4000000 0K syz-executor 122974 65093 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83064136) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83536d28,2,ffff80002a1001b8) at pool_do_get+0x5e6 pool_get(ffffffff83536d28,2) at pool_get+0x141 shmget_allocate_segment(ffff8000329782d0,ffff80002a100410,180,ffff80002a100360) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000329782d0,ffff80002a100410,ffff80002a100360) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff80002a100410) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a100410) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1179241aef0, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: pool_do_get: shmpl free list modified: page 0xfffffd806cfe2000; item addr 0xfffffd806cfe22b0; offset 0x2c=0xdead410f ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83064136) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83536d28,2,ffff80002a1001b8) at pool_do_get+0x5e6 pool_get(ffffffff83536d28,2) at pool_get+0x141 shmget_allocate_segment(ffff8000329782d0,ffff80002a100410,180,ffff80002a100360) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000329782d0,ffff80002a100410,ffff80002a100360) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff80002a100410) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a100410) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1179241aef0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a100000 rbx 0xffffffff83475dbf cpu_info_full_primary+0x2dbf rdx 0xffff8000012e9a40 rcx 0xffff8000329782d0 rax 0xffffffff83474ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x804aa81caf69035a r11 0x844b48860cb05c34 r12 0xffffffff83475bc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff82e8a235 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a0ffff0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=136819 pid=93275 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=50, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800032978558,0xffffffff8354ecd0 process=0xffff8000367cf1f8 user=0xffff80002a0fb000, vmspace=0xfffffd8069896380 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93275 231793 51522 32767 2 0x10 syz-executor *93275 136819 51522 32767 7 0x4000010 syz-executor 65093 122974 10471 32767 7 0x10 syz-executor 65093 65953 10471 32767 3 0x4000090 fsleep syz-executor 41744 480135 37932 32767 3 0x90 nanoslp syz-executor 41744 155273 37932 32767 3 0x4000090 sbwait syz-executor 41744 177947 37932 32767 3 0x4000090 fsleep syz-executor 51756 222730 4482 0 3 0x100082 sbwait arp 78203 257242 49354 32767 3 0x10 biowait syz-executor 4482 419832 90806 0 3 0x10008a sigsusp sh 49354 222586 58338 0 3 0x82 wait syz-executor 49379 112252 6478 32767 3 0x10 biowait syz-executor 51522 150364 29592 32767 3 0x90 nanoslp syz-executor 6478 252226 58338 0 3 0x82 wait syz-executor 29592 198117 58338 0 3 0x82 wait syz-executor 10471 508846 70372 32767 3 0x90 nanoslp syz-executor 70372 144838 58338 0 3 0x82 wait syz-executor 90806 142384 41230 0 3 0x80 wait syz-executor 37932 416511 58387 32767 2 0x10 syz-executor 60608 191459 97140 32767 3 0x10 getblk syz-executor 58387 289639 58338 0 3 0x82 wait syz-executor 93150 104006 3803 32767 3 0x10 biowait syz-executor 3803 509717 58338 0 3 0x82 wait syz-executor 97140 443720 58338 0 3 0x82 wait syz-executor 41230 110233 58338 0 3 0x82 wait syz-executor 45038 314521 2872 0 3 0x82 netio sshd-session 84244 286764 5924 0 3 0x100082 sbwait arp 5924 483614 22140 0 3 0x10008a sigsusp sh 22140 241107 1 0 3 0x80 wait syz-executor 65191 84308 0 0 3 0x14200 bored sosplice 58338 88373 77685 0 2 0x2 syz-executor 77685 469489 48340 0 3 0x10008a sigsusp ksh 48340 360919 67701 0 3 0x98 kqread sshd-session 67701 100990 2872 0 3 0x92 kqread sshd-session 89095 288115 1 0 3 0x100083 ttyin getty 2872 450392 1 0 3 0x88 kqread sshd 41106 34185 64970 73 3 0x1100010 biowait syslogd 64970 520898 1 0 3 0x100082 sbwait syslogd 16415 133180 1 0 3 0x100080 kqread resolvd 22921 225076 34061 77 3 0x100092 kqread dhcpleased 83295 441422 34061 77 3 0x100092 kqread dhcpleased 34061 43895 1 0 3 0x80 kqread dhcpleased 79986 493612 0 0 3 0x14200 bored smr 76620 220720 0 0 3 0x14200 pgzero zerothread 45061 397985 0 0 3 0x14200 aiodoned aiodoned 29206 70267 0 0 3 0x14200 syncer update 21846 19967 0 0 3 0x14200 cleaner cleaner 679 111622 0 0 3 0x14200 reaper reaper 41850 106712 0 0 3 0x14200 pgdaemon pagedaemon 11312 444188 0 0 3 0x14200 bored viomb 75032 290058 0 0 3 0x40014200 acpi0 acpi0 38789 248430 0 0 3 0x40014200 idle1 60166 398433 0 0 3 0x14200 bored softnet3 16426 329608 0 0 3 0x14200 bored softnet2 93200 201023 0 0 3 0x14200 bored softnet1 70834 194055 0 0 3 0x14200 bored softnet0 25093 256256 0 0 3 0x14200 bored systqmp 54507 258470 0 0 3 0x14200 bored systq 59344 519840 0 0 3 0x14200 tmoslp softclockmp 12401 338468 0 0 3 0x40014200 tmoslp softclock 18157 314106 0 0 3 0x40014200 idle0 1 291308 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex shmpl r = 0 (0xffffffff83536d38) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pool_get+0x103 sys/kern/subr_pool.c:579 #4 shmget_allocate_segment+0x1a7 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 93275 (syz-executor) thread 0xffff8000329782d0 (136819) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83591e78) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff83536d38) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pool_get+0x103 sys/kern/subr_pool.c:579 #4 shmget_allocate_segment+0x1a7 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 65093 (syz-executor) thread 0xffff8000371f4cd8 (122974) shared rwlock vmmaplk r = 0 (0xfffffd80698967e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 78203 (syz-executor) thread 0xffff8000371f4a50 (257242) exclusive rrwlock inode r = 0 (0xfffffd8076cf8928) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8054534f80) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 49379 (syz-executor) thread 0xffff8000367ca028 (112252) exclusive rrwlock inode r = 0 (0xfffffd8076cf82c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8054534700) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 60608 (syz-executor) thread 0xffff800033d99460 (191459) exclusive rrwlock inode r = 0 (0xfffffd8076cf8c58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0x111 sys/kern/vfs_vnops.c:609 #6 fdrop+0x126 sys/kern/kern_descrip.c:1274 #7 closef+0x192 sys/kern/kern_descrip.c:1258 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 93150 (syz-executor) thread 0xffff800033d99970 (104006) exclusive rrwlock inode r = 0 (0xfffffd8076cf85f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:673 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80700332c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 41106 (syslogd) thread 0xffff8000ffffdbe8 (34185) exclusive rrwlock inode r = 0 (0xfffffd806e2a43d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10215 11051K 11059K 166960K 11562 0 pcb 17 14K 16K 166960K 19 0 rtable 224 6K 7K 166960K 3102 0 pf 31 16K 16K 166960K 209 0 ifaddr 40 7K 8K 166960K 402 0 ifgroup 50 2K 2K 166960K 406 0 sysctl 4 1K 1K 166960K 5 0 counters 64 36K 36K 166960K 242 0 ioctlops 0 0K 2K 166960K 214 0 iov 0 0K 20K 166960K 126 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1469 92K 92K 166960K 3800 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 40 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 92 0 dirhash 15 2K 3K 166960K 57 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 26 97K 157K 166960K 3629 0 sigio 0 0K 0K 166960K 81 0 proc 58 79K 176K 166960K 3176 0 subproc 117 7K 13K 166960K 2067 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 542 0 in_multi 89 6K 7K 166960K 1166 0 ether_multi 1 0K 0K 166960K 19 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 1897 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 252 82K 130K 166960K 29042 0 UVM aobj 91 6K 6K 166960K 102 0 pinsyscall 51 102K 128K 166960K 7188 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 202 0 NDP 21 1K 2K 166960K 290 0 temp 78 6824K 6889K 166960K 25949 0 kqueue 13 20K 32K 166960K 446 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 503 0 498 5 4 1 3 0 8 0 rtentry 112 1104 0 999 6 2 4 4 0 8 1 unpcb 144 2169 0 2154 17 16 1 4 0 8 0 syncache 336 67 0 67 10 10 0 1 0 8 0 tcpqe 32 25 0 25 6 6 0 1 0 8 0 tcpcb 808 1734 0 1719 31 27 4 9 0 8 2 arp 120 196 0 178 1 0 1 1 0 8 0 ipq 40 11 0 8 1 0 1 1 0 8 0 ipqe 40 221 0 218 1 0 1 1 0 8 0 inpcb 336 4439 0 4419 55 46 9 16 0 8 6 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 313 0 290 2 0 2 2 0 8 1 kcovpl 48 159 0 150 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4404 0 3981 69 41 28 30 0 8 1 art_table 32 4405 0 3981 5 1 4 4 0 8 0 art_node 16 1103 0 1007 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 88 0 78 1 0 1 1 0 8 0 shmpl 112 99 0 11 3 0 3 3 0 8 0 pool(0xffffffff83536d28:shmpl): page inconsistency: page 0xfffffd806cfe2000; 16 on list, 18 missing, 35 items per page dirhash 1024 48 0 28 3 0 3 3 0 8 0 dino2pl 256 4886 0 3095 113 0 113 113 0 8 0 ffsino 272 4886 0 3095 120 0 120 120 0 8 0 nchpl 144 7756 0 5860 71 0 71 71 0 8 0 uvmvnodes 80 6962 0 0 143 0 143 143 0 8 0 vnodes 216 6962 0 0 387 0 387 387 0 8 0 namei 1024 37288 0 37286 17 15 2 2 0 8 1 percpumem 16 135 0 89 1 0 1 1 0 8 0 kstatmem 264 200 0 178 2 0 2 2 0 8 0 scxspl 216 58652 0 58648 23 22 1 8 1 8 0 plimitpl 152 1157 0 1132 2 0 2 2 0 8 0 sigapl 424 3654 0 3596 12 4 8 9 0 8 0 futexpl 64 29450 0 29448 9 8 1 1 0 8 0 knotepl 120 553 0 0 17 0 17 17 0 8 0 kqueuepl 216 975 0 966 13 12 1 6 0 8 0 pipepl 320 919 0 888 16 11 5 8 0 8 0 fdescpl 496 3635 0 3596 11 4 7 7 0 8 0 filepl 152 22922 0 22660 45 31 14 20 0 8 0 lockfpl 104 752 0 750 2 1 1 2 0 8 0 lockfspl 48 203 0 201 1 0 1 1 0 8 0 sessionpl 144 166 0 148 1 0 1 1 0 8 0 pgrppl 48 426 0 400 1 0 1 1 0 8 0 ucredpl 104 4083 0 4065 1 0 1 1 0 8 0 zombiepl 144 3596 0 3596 1 0 1 1 0 8 1 processpl 1160 3654 0 3596 7 1 6 6 0 8 0 procpl 648 7062 0 7000 10 3 7 7 0 8 0 srpgc 96 5 0 5 2 2 0 1 0 8 0 sosppl 168 37 0 37 6 5 1 1 0 8 1 sockpl 664 7155 0 7115 77 67 10 21 0 8 5 mcl64k 65536 23 0 0 3 1 2 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 166 0 0 18 0 18 18 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 69 0 0 5 0 5 5 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 2040 0 0 127 0 127 127 0 8 0 bufpl 280 11315 0 3801 537 0 537 537 0 8 0 anonpl 24 538143 0 534298 104 51 53 74 0 185 7 amapchunkpl 152 92570 0 92048 65 30 35 45 0 158 11 amappl16 200 9565 0 9556 90 85 5 27 0 8 3 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 394 0 380 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 5753 0 5713 8 5 3 3 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 142 0 141 1 0 1 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 334 0 319 1 0 1 1 0 8 0 amappl6 120 1047 0 1043 1 0 1 1 0 8 0 amappl5 112 533 0 523 1 0 1 1 0 8 0 amappl4 104 766 0 750 1 0 1 1 0 8 0 amappl3 96 18248 0 18127 5 1 4 5 0 8 0 amappl2 88 2513 0 2437 2 0 2 2 0 8 0 amappl1 80 36945 0 36266 19 2 17 17 0 8 0 amappl 88 27575 0 27389 8 2 6 6 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 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 72 101 0 11 2 0 2 2 0 8 0 uaddrrnd 24 3635 0 3596 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3635 0 3596 1 0 1 1 0 8 0 vmmpekpl 168 37776 0 37705 6 1 5 5 0 8 0 vmmpepl 168 243114 0 241002 159 51 108 113 0 357 7 vmsppl 440 3634 0 3596 7 1 6 6 0 8 0 rwobjpl 56 79454 0 71373 122 6 116 116 0 8 0 pdppl 4096 7277 0 7192 357 256 101 113 0 8 16 pvpl 32 30658 0 0 246 0 246 246 0 265 0 pmappl 248 3634 0 3596 7 3 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 935 0 398 16 0 16 16 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83064136) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83536d28,2,ffff80002a1001b8) at pool_do_get+0x5e6 pool_get(ffffffff83536d28,2) at pool_get+0x141 shmget_allocate_segment(ffff8000329782d0,ffff80002a100410,180,ffff80002a100360) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000329782d0,ffff80002a100410,ffff80002a100360) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff80002a100410) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a100410) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1179241aef0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff83591c70) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83591c70) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd80698966f0,de892cba000,0,1) at uvm_fault+0x1ed sys/uvm/uvm_fault.c:622 upageflttrap(ffff800033d8fa30,de892cba000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800033d8fa30) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x754a18220cb0, count: 6 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff83591c70) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83591c70) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd80698966f0,de892cba000,0,1) at uvm_fault+0x1ed sys/uvm/uvm_fault.c:622 upageflttrap(ffff800033d8fa30,de892cba000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800033d8fa30) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x754a18220cb0, count: -9