login: "Î"‰L´‡«±‹&¦Àß"Î"‰L´‡«±‹&¦Àß"Î"‰L´‡«±‹&¦Àß"Î"‰L´‡«±‹&¦Àß"Î"‰L´‡«±‹&¦Àßpanic: kernel diagnostic assertion "p == curproc" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_vops.c", line 169 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 170763 12998 0 0x14000 0x200 1 reaper * 2643 31551 0 0x14000 0x200 0K systq db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821f472c) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8224a9ea,ffffffff8224bf14,a9,ffffffff8222a32f) at __assert+0x2b sys/kern/subr_prf.c:154 VOP_CLOSE(fffffd8067def0e8,1,fffffd807f7bf960,0) at VOP_CLOSE+0x12f sys/kern/vfs_vops.c:170 vn_closefile(fffffd806895adc0,0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806895adc0,0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806895adc0,0) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd806895adc0,0) at closef+0x11c sys/kern/kern_descrip.c:1260 unp_gc(0) at unp_gc+0x172 sys/kern/uipc_usrreq.c:944 taskq_thread(ffffffff8248bfb0) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: 6 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 kernel diagnostic assertion "p == curproc" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_vops.c", line 169 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821f472c) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8224a9ea,ffffffff8224bf14,a9,ffffffff8222a32f) at __assert+0x2b sys/kern/subr_prf.c:154 VOP_CLOSE(fffffd8067def0e8,1,fffffd807f7bf960,0) at VOP_CLOSE+0x12f sys/kern/vfs_vops.c:170 vn_closefile(fffffd806895adc0,0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806895adc0,0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806895adc0,0) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd806895adc0,0) at closef+0x11c sys/kern/kern_descrip.c:1260 unp_gc(0) at unp_gc+0x172 sys/kern/uipc_usrreq.c:944 taskq_thread(ffffffff8248bfb0) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020a2d5e0 rbx 0xffff800020a2d690 rdx 0xffff800020a189c0 rcx 0 rax 0 r8 0xffffffff81e1786f kprintf+0x16f r9 0x1 r10 0x25 r11 0xab72e2091d110429 r12 0x3000000008 r13 0xffff800020a2d5f0 r14 0x100 r15 0x1 rip 0xffffffff81f88cf8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020a2d5d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (systq) pid=2643 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020a18ea0,0xffff800020a18760 process=0xffff800020a1a7b0 user=0xffff800020a28000, vmspace=0xffffffff82648778 estcpu=1, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54777 273288 0 0 3 0x14200 bored sosplice 18646 479353 76977 0 2 0x482 syz-executor.1 7608 379608 76977 0 2 0x482 syz-executor.0 76977 162552 89422 0 3 0x82 thrsleep syz-fuzzer 76977 138736 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 65376 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 344727 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 415566 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 123338 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 139440 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 445540 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 259285 89422 0 3 0x4000082 thrsleep syz-fuzzer 76977 403955 89422 0 3 0x4000082 kqread syz-fuzzer 76977 15477 89422 0 3 0x4000082 thrsleep syz-fuzzer 89422 320523 72965 0 3 0x10008a pause ksh 72965 155001 26566 0 3 0x92 select sshd 18482 461430 1 0 3 0x100083 ttyin getty 26566 218474 1 0 3 0x80 select sshd 90606 457076 39941 74 3 0x100092 bpf pflogd 39941 271299 1 0 3 0x80 netio pflogd 27200 209083 97317 73 3 0x100090 kqread syslogd 97317 8888 1 0 3 0x100082 netio syslogd 78011 132849 1 77 3 0x100090 poll dhclient 32760 399210 1 0 3 0x80 poll dhclient 47859 180405 0 0 3 0x14200 bored smr 80991 54814 0 0 3 0x14200 pgzero zerothread 54518 508455 0 0 3 0x14200 aiodoned aiodoned 99807 97735 0 0 3 0x14200 syncer update 42009 72367 0 0 3 0x14200 cleaner cleaner 12998 170763 0 0 7 0x14200 reaper 10183 47628 0 0 3 0x14200 pgdaemon pagedaemon 11144 44111 0 0 3 0x14200 bored crynlk 60103 273418 0 0 3 0x14200 bored crypto 35852 34912 0 0 3 0x40014200 acpi0 acpi0 994 323589 0 0 3 0x40014200 idle1 72062 479094 0 0 3 0x14200 bored softnet 11373 126747 0 0 3 0x14200 bored systqmp *31551 2643 0 0 7 0x14200 systq 84481 345507 0 0 2 0x40014200 softclock 72173 409992 0 0 3 0x40014200 idle0 1 255802 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 31551 (systq) thread 0xffff800020a189c0 (2643) exclusive rrwlock inode r = 0 (0xfffffd806b432c48) #0 witness_lock+0x4c5 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:613 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vn_closefile+0xc6 vn_close sys/kern/vfs_vnops.c:298 [inline] #5 vn_closefile+0xc6 sys/kern/vfs_vnops.c:614 #6 fdrop+0xc2 sys/kern/kern_descrip.c:1276 #7 closef+0x11c sys/kern/kern_descrip.c:1260 #8 unp_gc+0x172 sys/kern/uipc_usrreq.c:944 #9 taskq_thread+0x9c sys/kern/kern_task.c:369 #10 proc_trampoline+0x1c shared rwlock systq r = 0 (0xffffffff8248c010) #0 witness_lock+0x4c5 sys/kern/subr_witness.c:1164 #1 taskq_thread+0x8f sys/kern/kern_task.c:368 #2 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8267f3f0) #0 witness_lock+0x4c5 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:417 #4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:446 [inline] #4 sleep_finish_all+0x32 sys/kern/kern_synch.c:206 #5 msleep+0x20e sys/kern/kern_synch.c:273 #6 taskq_next_work+0xbe sys/kern/kern_task.c:323 #7 taskq_thread+0xe5 sys/kern/kern_task.c:366 #8 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9503 6480K 6997K 78643K 11113 0 pcb 13 8K 8K 78643K 85 0 rtable 109 3K 3K 78643K 250 0 ifaddr 65 14K 14K 78643K 83 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1472 0 iov 0 0K 24K 78643K 26 0 mount 1 1K 1K 78643K 1 0 vnodes 1229 77K 78K 78643K 1389 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 11 0K 0K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 4 9K 25K 78643K 308 0 sigio 0 0K 0K 78643K 7 0 proc 63 63K 95K 78643K 449 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 36 0 in_multi 56 3K 3K 78643K 80 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 212 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 95 37K 37K 78643K 1764 0 UVM aobj 4 2K 2K 78643K 6 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 23 0 NDP 9 0K 0K 78643K 15 0 temp 91 3038K 3103K 78643K 9043 0 kqueue 3 4K 10K 78643K 17 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 50 0 4 2 0 2 2 0 8 0 unpcb 120 123 0 111 1 0 1 1 0 8 0 syncache 264 8 0 8 2 2 0 1 0 8 0 tcpqe 32 448 0 448 1 1 0 1 0 8 0 tcpcb 544 109 0 105 1 0 1 1 0 8 0 inpcb 280 343 0 336 2 0 2 2 0 8 1 rttmr 72 3 0 3 1 0 1 1 0 8 1 nd6 48 7 0 0 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 pffrag 232 3 0 3 1 0 1 1 0 482 1 pffrnode 88 3 0 3 1 0 1 1 0 8 1 pffrent 40 92 0 92 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 pfstitem 24 38 0 2 1 0 1 1 0 8 0 pfstkey 112 38 0 2 2 0 2 2 0 8 0 pfstate 328 38 0 2 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 195 0 0 13 0 13 13 0 8 0 art_table 32 196 0 0 2 0 2 2 0 8 0 art_node 16 49 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 13 0 4 1 0 1 1 0 8 0 shmpl 112 4 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1792 0 386 46 0 46 46 0 8 0 ffsino 272 1792 0 386 95 0 95 95 0 8 1 nchpl 144 2341 0 722 61 0 61 61 0 8 0 uvmvnodes 72 1970 0 0 36 0 36 36 0 8 0 vnodes 208 1970 0 0 104 0 104 104 0 8 0 namei 1024 6024 0 6024 1 0 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 scxspl 192 8691 0 8691 8 1 7 7 0 8 7 plimitpl 152 29 0 21 1 0 1 1 0 8 0 sigapl 424 524 0 493 4 0 4 4 0 8 0 futexpl 56 2444 0 2444 1 0 1 1 0 8 1 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 37 0 35 1 0 1 1 0 8 0 pipelkpl 48 95 0 85 1 0 1 1 0 8 0 pipepl 120 190 0 171 1 0 1 1 0 8 0 fdescpl 496 508 0 493 3 0 3 3 0 8 0 filepl 152 2347 0 2243 6 1 5 6 0 8 1 lockfpl 104 101 0 100 1 0 1 1 0 8 0 lockfspl 48 33 0 32 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 204 0 194 1 0 1 1 0 8 0 zombiepl 144 493 0 491 1 0 1 1 0 8 0 processpl 984 524 0 491 5 0 5 5 0 8 0 procpl 624 1017 0 973 4 0 4 4 0 8 0 sosppl 128 10 0 10 1 0 1 1 0 8 1 sockpl 400 516 0 495 5 1 4 5 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 162 0 0 20 0 20 20 0 8 0 mtagpl 80 38 0 0 1 0 1 1 0 8 0 mbufpl 256 244 0 0 15 0 15 15 0 8 0 bufpl 280 5499 0 178 381 0 381 381 0 8 0 anonpl 16 54615 0 42640 54 1 53 53 0 124 3 amapchunkpl 152 2194 0 2065 7 0 7 7 0 158 0 amappl16 192 2113 0 1483 35 0 35 35 0 8 3 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 135 0 132 2 1 1 1 0 8 0 amappl13 168 33 0 31 1 0 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 72 0 54 1 0 1 1 0 8 0 amappl10 144 168 0 162 1 0 1 1 0 8 0 amappl9 136 388 0 385 1 0 1 1 0 8 0 amappl8 128 295 0 283 1 0 1 1 0 8 0 amappl7 120 266 0 253 1 0 1 1 0 8 0 amappl6 112 25 0 21 1 0 1 1 0 8 0 amappl5 104 410 0 396 1 0 1 1 0 8 0 amappl4 96 505 0 472 2 1 1 2 0 8 0 amappl3 88 107 0 102 1 0 1 1 0 8 0 amappl2 80 3160 0 3097 3 1 2 3 0 8 0 amappl1 72 20081 0 19641 24 14 10 20 0 8 0 amappl 80 1261 0 1219 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 5 0 2 1 0 1 1 0 8 0 uaddrrnd 24 509 0 493 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 509 0 493 1 0 1 1 0 8 0 vmmpekpl 168 7264 0 7236 2 0 2 2 0 8 0 vmmpepl 168 66661 0 64972 101 7 94 98 0 357 12 vmsppl 368 508 0 492 2 0 2 2 0 8 0 pdppl 4096 1026 0 985 6 0 6 6 0 8 0 pvpl 32 192803 0 177803 138 1 137 137 0 265 13 pmappl 232 508 0 492 3 1 2 2 0 8 1 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 174 0 4 5 0 5 5 0 8 0