panic: pool_do_get: shmpl free list modified: page 0xfffffd806b7d4000; item addr 0xfffffd806b7d4d20; offset 0x40=0x6893f775 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *158214 65152 32767 0x10 0x4000000 1K syz-executor 370189 41916 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336252b) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8397b4d0,1,ffff80003c493538) at pool_do_get+0x5df pool_get(ffffffff8397b4d0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c452d20,ffff80003c493790,0,ffff80003c4936e0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c452d20,ffff80003c493790,ffff80003c4936e0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c493790) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c493790) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c7d66bc010, 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 0xfffffd806b7d4000; item addr 0xfffffd806b7d4d20; offset 0x40=0x6893f775 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336252b) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8397b4d0,1,ffff80003c493538) at pool_do_get+0x5df pool_get(ffffffff8397b4d0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c452d20,ffff80003c493790,0,ffff80003c4936e0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c452d20,ffff80003c493790,ffff80003c4936e0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c493790) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c493790) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c7d66bc010, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c493360 rbx 0xffff8000299eeddf rdx 0xffff800001460080 rcx 0xffff80003c452d20 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x97f39c0f78d20752 r11 0x6ff635973177047a r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff826e2f25 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c493350 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=158214 pid=65152 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4527f0,0xffffffff8397fa30 process=0xffff800039c36730 user=0xffff80003c48e000, vmspace=0xfffffd806bbc0400 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65152 154376 23195 32767 2 0x10 syz-executor *65152 158214 23195 32767 7 0x4000010 syz-executor 25529 454037 8475 32767 2 0x3010 syz-executor 41916 454961 82358 32767 2 0x10 syz-executor 41916 435997 82358 32767 3 0x4000090 fsleep syz-executor 41916 370189 82358 32767 7 0x4000010 syz-executor 41916 319099 82358 32767 3 0x4000090 fsleep syz-executor 41916 337214 82358 32767 3 0x4000090 fsleep syz-executor 80853 521310 79255 32767 2 0xc90 syz-executor 80853 107874 79255 32767 3 0x4000090 fsleep syz-executor 80853 439676 79255 32767 3 0x4000090 msgwait syz-executor 80853 501100 79255 32767 3 0x4000090 fsleep syz-executor 67283 48776 0 0 3 0x14200 bored sosplice 34335 224368 44373 32767 2 0x10 syz-executor 82358 501671 62429 32767 3 0x90 nanoslp syz-executor 23195 199144 16147 32767 3 0x90 nanoslp syz-executor 3006 357030 8892 32767 2 0x10 syz-executor 6673 497349 58922 32767 2 0x10 syz-executor 79255 76347 18376 32767 2 0xc90 syz-executor 8475 94478 44989 32767 2 0xc90 syz-executor 81314 339133 27942 32767 3 0x90 nanoslp syz-executor 18376 334579 35821 0 3 0x82 wait syz-executor 16147 461199 35821 0 3 0x82 wait syz-executor 8892 257961 35821 0 3 0x82 wait syz-executor 27942 468958 35821 0 3 0x82 wait syz-executor 44373 59312 35821 0 3 0x82 wait syz-executor 58922 411448 35821 0 3 0x82 wait syz-executor 44989 153108 35821 0 3 0x82 wait syz-executor 62429 265821 35821 0 3 0x82 wait syz-executor 35821 342994 1042 0 3 0x82 kqread syz-executor 1042 293224 5291 0 3 0x10008a sigsusp ksh 5291 44974 63533 0 3 0x98 kqread sshd-session 63533 514804 64764 0 3 0x92 kqread sshd-session 92288 335662 1 0 3 0x100083 ttyin getty 64764 393341 1 0 3 0x88 kqread sshd 61472 515434 63594 73 3 0x1100090 kqread syslogd 63594 142268 1 0 3 0x100082 sbwait syslogd 2593 90893 1 0 3 0x100080 kqread resolvd 73208 293697 41326 77 3 0x100092 kqread dhcpleased 45558 419360 41326 77 3 0x100092 kqread dhcpleased 41326 127603 1 0 3 0x80 kqread dhcpleased 93389 289872 0 0 3 0x14200 bored smr 79778 152184 0 0 2 0x14200 zerothread 88702 319435 0 0 3 0x14200 aiodoned aiodoned 77096 280751 0 0 3 0x14200 syncer update 74095 319325 0 0 3 0x14200 cleaner cleaner 42205 466006 0 0 2 0x14200 reaper 33489 270553 0 0 3 0x14200 pgdaemon pagedaemon 35858 516942 0 0 3 0x14200 bored viomb 56471 148345 0 0 3 0x40014200 acpi0 acpi0 56387 440335 0 0 3 0x40014200 idle1 81161 36633 0 0 3 0x14200 bored softnet7 35757 54560 0 0 3 0x14200 bored softnet6 99657 50501 0 0 3 0x14200 bored softnet5 4934 326841 0 0 3 0x14200 bored softnet4 10302 332719 0 0 3 0x14200 bored softnet3 70719 152935 0 0 3 0x14200 bored softnet2 56056 476957 0 0 3 0x14200 bored softnet1 23409 251007 0 0 2 0x14200 softnet0 34006 58139 0 0 3 0x14200 bored systqmp 53362 328425 0 0 3 0x14200 bored systq 73792 310752 0 0 3 0x14200 tmoslp softclockmp 72871 503791 0 0 2 0x40014200 softclock 15739 385514 0 0 3 0x40014200 idle0 1 347871 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff8397b4e8) #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:748 #7 Xsyscall+0x128 Process 65152 (syz-executor) thread 0xffff80003c452d20 (158214) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8397cd20) #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:748 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff8397b4e8) #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:748 #7 Xsyscall+0x128 Process 41916 (syz-executor) thread 0xffff80003c47b4f0 (370189) shared rwlock vmmaplk r = 0 (0xfffffd800c71d4f8) #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 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 #6 kerntrap+0x198 sys/arch/amd64/amd64/trap.c:491 #7 alltraps_kern_meltdown+0x7b #8 copyout+0x57 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 Process 34335 (syz-executor) thread 0xffff80003c453a18 (224368) exclusive rrwlock inode r = 0 (0xfffffd8064113ec0) #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 vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0x111 sys/kern/vfs_vnops.c:615 #6 fdrop+0x121 sys/kern/kern_descrip.c:1280 #7 closef+0x192 sys/kern/kern_descrip.c:1264 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 3006 (syz-executor) thread 0xffff80002a36e7e8 (357030) exclusive rrwlock inode r = 0 (0xfffffd8064113c70) #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:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bed7698) #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:748 #9 Xsyscall+0x128 Process 6673 (syz-executor) thread 0xffff80002a36ea80 (497349) exclusive rrwlock inode r = 0 (0xfffffd8064113458) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d0eb568) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10190 10956K 10968K 166960K 11268 0 pcb 17 12K 12K 166960K 17 0 rtable 205 5K 5K 166960K 251 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1382 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 9K 9K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 22 81K 129K 166960K 184 0 proc 62 131K 163K 166960K 489 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 7 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 343 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 237 168K 177K 166960K 3124 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 43 86K 112K 166960K 1189 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 2 0 NDP 15 0K 2K 166960K 27 0 temp 37 8638K 8704K 166960K 3825 0 kqueue 14 22K 22K 166960K 27 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 37 0 32 1 0 1 1 0 8 0 rtentry 176 95 0 1 5 0 5 5 0 8 0 unpcb 144 63 0 46 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 55 0 50 2 0 2 2 0 8 1 arp 128 10 0 0 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 2 0 2 1 0 1 1 0 8 1 inpcb 328 157 0 148 5 0 5 5 0 8 4 nd6 144 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 436 0 0 28 0 28 28 0 8 0 art_table 40 437 0 0 5 0 5 5 0 8 0 art_node 32 95 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 pool(0xffffffff8397b4d0:shmpl): page inconsistency: page 0xfffffd806b7d4000; 33 on list, 1 missing, 35 items per page dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1634 0 129 95 0 95 95 0 8 0 ffsino 296 1634 0 129 117 0 117 117 0 8 0 nchpl 144 1879 0 202 63 0 63 63 0 8 0 uvmvnodes 80 1715 0 0 35 0 35 35 0 8 0 vnodes 216 1715 0 0 96 0 96 96 0 8 0 namei 1024 5609 0 5608 2 0 2 2 0 8 1 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 6652 0 6652 3 1 2 2 1 8 2 plimitpl 152 74 0 50 2 0 2 2 0 8 1 sigapl 424 462 0 404 8 0 8 8 0 8 0 knotepl 120 303 0 0 10 0 10 10 0 8 0 kqueuepl 224 28 0 16 1 0 1 1 0 8 0 pipepl 344 98 0 71 3 0 3 3 0 8 0 fdescpl 528 439 0 405 4 0 4 4 0 8 0 filepl 160 1661 0 1446 14 0 14 14 0 8 4 lockfpl 104 112 0 110 2 0 2 2 0 8 1 lockfspl 48 7 0 5 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 32 0 8 1 0 1 1 0 8 0 ucredpl 104 232 0 213 1 0 1 1 0 8 0 zombiepl 144 406 0 404 1 0 1 1 0 8 0 processpl 1248 462 0 404 7 1 6 6 0 8 0 procpl 664 552 0 484 7 0 7 7 0 8 0 sockpl 752 258 0 227 9 1 8 9 0 8 4 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 26 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 166 0 0 11 0 11 11 0 8 0 bufpl 280 2931 0 116 202 0 202 202 0 8 0 anonpl 32 4326 0 0 35 0 35 35 0 246 0 amapchunkpl 152 9039 0 8531 27 2 25 25 0 158 2 amappl16 200 1829 0 1746 5 0 5 5 0 8 0 amappl15 192 34 0 34 1 1 0 1 0 8 0 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1097 0 1063 2 0 2 2 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 256 0 256 1 1 0 1 0 8 0 amappl8 136 43 0 42 1 0 1 1 0 8 0 amappl7 128 103 0 92 1 0 1 1 0 8 0 amappl6 120 181 0 178 1 0 1 1 0 8 0 amappl5 112 114 0 106 1 0 1 1 0 8 0 amappl4 104 263 0 248 1 0 1 1 0 8 0 amappl3 96 1451 0 1335 4 0 4 4 0 8 0 amappl2 88 615 0 562 2 0 2 2 0 8 0 amappl1 80 8398 0 7839 14 0 14 14 0 8 0 amappl 88 2505 0 2333 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 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 439 0 405 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 439 0 405 1 0 1 1 0 8 0 vmmpekpl 168 5161 0 5129 2 0 2 2 0 8 0 vmmpepl 168 34895 0 32876 100 0 100 100 0 357 3 vmsppl 488 438 0 404 7 1 6 6 0 8 0 rwobjpl 80 14294 0 11690 55 1 54 54 0 8 0 pdppl 4096 886 0 808 110 20 90 100 0 8 12 pvpl 32 11082 0 0 90 0 90 90 0 265 0 pmappl 256 438 0 404 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 280 0 23 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8380aff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8397cb18) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8397cb18) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_cmp8(fffffd800c71d3f8,139000) at __sanitizer_cov_trace_cmp8 uvmfault_lookup(ffff80002fffceb0,0) at uvmfault_lookup+0x133 sys/uvm/uvm_fault.c:1924 uvm_fault_check(ffff80002fffceb0,ffff80002fffcee8,ffff80002fffcf20,0) at uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 uvm_fault(fffffd800c71d3f8,139000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:677 kpageflttrap(ffff80002fffd060,139240) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80002fffd060) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:491 end trace frame: 0xffff80002fffd0e0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8380aff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8397cb18) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8397cb18) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_cmp8(fffffd800c71d3f8,139000) at __sanitizer_cov_trace_cmp8 uvmfault_lookup(ffff80002fffceb0,0) at uvmfault_lookup+0x133 sys/uvm/uvm_fault.c:1924 uvm_fault_check(ffff80002fffceb0,ffff80002fffcee8,ffff80002fffcf20,0) at uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 uvm_fault(fffffd800c71d3f8,139000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:677 kpageflttrap(ffff80002fffd060,139240) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80002fffd060) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80002fffd4a0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002fffd4a0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc2ab87ebdf0, count: -18 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(ffffffff8336252b) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8397b4d0,1,ffff80003c493538) at pool_do_get+0x5df pool_get(ffffffff8397b4d0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c452d20,ffff80003c493790,0,ffff80003c4936e0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c452d20,ffff80003c493790,ffff80003c4936e0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c493790) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c493790) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c7d66bc010, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336252b) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8397b4d0,1,ffff80003c493538) at pool_do_get+0x5df pool_get(ffffffff8397b4d0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c452d20,ffff80003c493790,0,ffff80003c4936e0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c452d20,ffff80003c493790,ffff80003c4936e0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c493790) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c493790) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c7d66bc010, count: -8