| TITLE: panic: fifo_badop called |
| SUPPRESSED: Y |
| |
| panic: fifo_badop called |
| Stopped at db_enter+0x18: addq $0x8,%rsp |
| TID PID UID PRFLAGS PFLAGS CPU COMMAND |
| *329264 5452 32767 0x10 0 0 syz-executor.0 |
| 160940 6886 32767 0x10 0 1K syz-executor.1 |
| db_enter() at db_enter+0x18 |
| panic() at panic+0x15c |
| fifo_badop(ffff800024f473f8) at fifo_badop+0x14 |
| VOP_STRATEGY(fffffd806fc48700) at VOP_STRATEGY+0x99 |
| bwrite(fffffd806fc48700) at bwrite+0x1b9 |
| VOP_BWRITE(fffffd806fc48700) at VOP_BWRITE+0x4a |
| ufs_mkdir(ffff800024f47680) at ufs_mkdir+0x6b7 |
| VOP_MKDIR(fffffd80712d61a0,ffff800024f477e0,ffff800024f47830,ffff800024f47710) at VOP_MKDIR+0xc6 |
| domkdirat(ffff800020a88508,ffffff9c,7f7ffffe7a00,1ff) at domkdirat+0x121 |
| syscall(ffff800024f479b0) at syscall+0x4a4 |
| Xsyscall(6,88,7f7ffffe7a00,88,0,7f7ffffe7a24) at Xsyscall+0x128 |
| end of kernel |
| end trace frame: 0x7f7ffffe7a70, count: 4 |
| 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 |
| fifo_badop called |
| ddb{0}> trace |
| db_enter() at db_enter+0x18 |
| panic() at panic+0x15c |
| fifo_badop(ffff800024f473f8) at fifo_badop+0x14 |
| VOP_STRATEGY(fffffd806fc48700) at VOP_STRATEGY+0x99 |
| bwrite(fffffd806fc48700) at bwrite+0x1b9 |
| VOP_BWRITE(fffffd806fc48700) at VOP_BWRITE+0x4a |
| ufs_mkdir(ffff800024f47680) at ufs_mkdir+0x6b7 |
| VOP_MKDIR(fffffd80712d61a0,ffff800024f477e0,ffff800024f47830,ffff800024f47710) at VOP_MKDIR+0xc6 |
| domkdirat(ffff800020a88508,ffffff9c,7f7ffffe7a00,1ff) at domkdirat+0x121 |
| syscall(ffff800024f479b0) at syscall+0x4a4 |
| Xsyscall(6,88,7f7ffffe7a00,88,0,7f7ffffe7a24) at Xsyscall+0x128 |
| end of kernel |
| end trace frame: 0x7f7ffffe7a70, count: -11 |
| ddb{0}> show registers |
| rdi 0 |
| rsi 0x1 |
| rbp 0xffff800024f47320 |
| rbx 0xffff800024f473d0 |
| rdx 0xffff800020a88508 |
| rcx 0 |
| rax 0 |
| r8 0xffffffff8101c8df kprintf+0x16f |
| r9 0x1 |
| r10 0x25 |
| r11 0xe51edc67ee5281cb |
| r12 0x3000000008 |
| r13 0xffff800024f47330 |
| r14 0x100 |
| r15 0x1 |
| rip 0xffffffff812e7d28 db_enter+0x18 |
| cs 0x8 |
| rflags 0x246 |
| rsp 0xffff800024f47310 |
| ss 0x10 |
| db_enter+0x18: addq $0x8,%rsp |
| ddb{0}> show proc |
| PROC (syz-executor.0) pid=329264 stat=onproc |
| flags process=10<SUGID> proc=0 |
| pri=17, usrpri=86, nice=20 |
| forw=0xffffffffffffffff, list=0xffff800020a88ee8,0xffffffff8261fc78 |
| process=0xffff800020a8b510 user=0xffff800024f42000, vmspace=0xfffffd806e8f5a18 |
| estcpu=36, cpticks=2, pctcpu=0.0 |
| user=0, sys=0, intr=0 |
| ddb{0}> ps |
| PID TID PPID UID S FLAGS WAIT COMMAND |
| * 5452 329264 9381 32767 7 0x10 syz-executor.0 |
| 9381 98590 65813 0 3 0x82 wait syz-executor.0 |
| 6886 160940 28340 32767 7 0x10 syz-executor.1 |
| 28340 495629 65813 0 3 0x82 wait syz-executor.1 |
| 80348 131324 0 0 3 0x14200 bored sosplice |
| 65813 153186 68824 0 3 0x82 thrsleep syz-fuzzer |
| 65813 181103 68824 0 3 0x4000082 nanosleep syz-fuzzer |
| 65813 265207 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 166004 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 398271 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 114417 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 429670 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 371452 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 36842 68824 0 3 0x4000082 kqread syz-fuzzer |
| 65813 75178 68824 0 3 0x4000082 thrsleep syz-fuzzer |
| 65813 357058 68824 0 3 0x4000082 nanosleep syz-fuzzer |
| 68824 297161 67374 0 3 0x10008a pause ksh |
| 67374 193564 14001 0 3 0x92 select sshd |
| 38846 308703 1 0 3 0x100083 ttyin getty |
| 14001 34650 1 0 3 0x80 select sshd |
| 35307 276337 21163 73 3 0x100090 kqread syslogd |
| 21163 216729 1 0 3 0x100082 netio syslogd |
| 29352 357713 1 77 3 0x100090 poll dhclient |
| 69864 180619 1 0 3 0x80 poll dhclient |
| 81949 258680 0 0 3 0x14200 pgzero zerothread |
| 74333 489294 0 0 3 0x14200 aiodoned aiodoned |
| 43915 29495 0 0 3 0x14200 syncer update |
| 21947 228871 0 0 3 0x14200 cleaner cleaner |
| 79009 89570 0 0 3 0x14200 reaper reaper |
| 39808 29253 0 0 3 0x14200 pgdaemon pagedaemon |
| 64724 72838 0 0 3 0x14200 bored crynlk |
| 97361 182479 0 0 3 0x14200 bored crypto |
| 11311 139154 0 0 3 0x40014200 acpi0 acpi0 |
| 13854 91973 0 0 3 0x40014200 idle1 |
| 16766 307510 0 0 3 0x14200 bored softnet |
| 14571 225082 0 0 3 0x14200 bored systqmp |
| 20736 144225 0 0 3 0x14200 bored systq |
| 75162 341706 0 0 3 0x40014200 bored softclock |
| 51450 22235 0 0 3 0x40014200 idle0 |
| 47010 24545 0 0 3 0x14200 bored smr |
| 1 393751 0 0 3 0x82 wait init |
| 0 0 -1 0 3 0x10200 scheduler swapper |
| ddb{0}> show all locks |
| Process 5452 (syz-executor.0) thread 0xffff800020a88508 (329264) |
| exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82673760) |
| #0 witness_lock+0x52e |
| #1 __mp_acquire_count+0x51 |
| #2 mi_switch+0x392 |
| #3 sleep_finish+0x113 |
| #4 tsleep+0x198 |
| #5 biowait+0xa1 |
| #6 bwrite+0x1e4 |
| #7 ffs_update+0x2c2 |
| #8 ufs_mkdir+0x665 |
| #9 VOP_MKDIR+0xc6 |
| #10 domkdirat+0x121 |
| #11 syscall+0x4a4 |
| #12 Xsyscall+0x128 |
| exclusive rrwlock inode r = 0 (0xfffffd80677eba38) |
| #0 witness_lock+0x52e |
| #1 rw_enter+0x447 |
| #2 rrw_enter+0x4f |
| #3 VOP_LOCK+0xf0 |
| #4 vn_lock+0x81 |
| #5 vget+0x1c3 |
| #6 ufs_ihashget+0x141 |
| #7 ffs_vget+0x74 |
| #8 ffs_inode_alloc+0x1cf |
| #9 ufs_mkdir+0xf4 |
| #10 VOP_MKDIR+0xc6 |
| #11 domkdirat+0x121 |
| #12 syscall+0x4a4 |
| #13 Xsyscall+0x128 |
| exclusive rrwlock inode r = 0 (0xfffffd806e588f78) |
| #0 witness_lock+0x52e |
| #1 rw_enter+0x447 |
| #2 rrw_enter+0x4f |
| #3 VOP_LOCK+0xf0 |
| #4 vn_lock+0x81 |
| #5 vfs_lookup+0xe6 |
| #6 namei+0x63c |
| #7 domkdirat+0x75 |
| #8 syscall+0x4a4 |
| #9 Xsyscall+0x128 |
| Process 6886 (syz-executor.1) thread 0xffff800020a898c8 (160940) |
| exclusive rrwlock inode r = 0 (0xfffffd806e585a30) |
| #0 witness_lock+0x52e |
| #1 rw_enter+0x447 |
| #2 rrw_enter+0x4f |
| #3 VOP_LOCK+0xf0 |
| #4 vn_lock+0x81 |
| #5 vn_closefile+0xc7 |
| #6 fdrop+0xc2 |
| #7 closef+0x11d |
| #8 fdrelease+0xba |
| #9 syscall+0x4a4 |
| #10 Xsyscall+0x128 |
| ddb{0}> show malloc |
| Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim |
| devbuf 9470 6322K 6322K 78643K 11852 0 0 |
| pcb 13 12K 14K 78643K 17 0 0 |
| rtable 109 3K 3K 78643K 11086 0 0 |
| ifaddr 38 18K 21K 78643K 1636 0 0 |
| counters 39 33K 33K 78643K 39 0 0 |
| ioctlops 0 0K 2K 78643K 443 0 0 |
| iov 0 0K 32K 78643K 4391 0 0 |
| mount 1 1K 1K 78643K 1 0 0 |
| vnodes 1215 76K 76K 78643K 7025 0 0 |
| UFS quota 1 32K 32K 78643K 1 0 0 |
| UFS mount 5 36K 36K 78643K 5 0 0 |
| shm 2 1K 5K 78643K 87 0 0 |
| VM map 2 1K 1K 78643K 2 0 0 |
| sem 12 0K 1K 78643K 3558 0 0 |
| dirhash 12 2K 2K 78643K 12 0 0 |
| ACPI 1808 196K 290K 78643K 12765 0 0 |
| file desc 6 17K 33K 78643K 10513 0 0 |
| sigio 0 0K 0K 78643K 190 0 0 |
| proc 48 50K 83K 78643K 12276 0 0 |
| subproc 34 2K 2K 78643K 4437 0 0 |
| NFS srvsock 1 0K 0K 78643K 1 0 0 |
| NFS daemon 1 16K 16K 78643K 1 0 0 |
| ip_moptions 0 0K 1K 78643K 1275 0 0 |
| in_multi 33 2K 2K 78643K 3113 0 0 |
| ether_multi 1 0K 0K 78643K 37 0 0 |
| ISOFS mount 1 32K 32K 78643K 1 0 0 |
| MSDOSFS mount 1 16K 16K 78643K 1 0 0 |
| ttys 108 477K 477K 78643K 108 0 0 |
| exec 0 0K 1K 78643K 4565 0 0 |
| pagedep 1 8K 8K 78643K 1 0 0 |
| inodedep 1 32K 32K 78643K 1 0 0 |
| newblk 1 0K 0K 78643K 1 0 0 |
| VM swap 7 26K 26K 78643K 7 0 0 |
| UVM amap 159 25K 34K 78643K 38485 0 0 |
| UVM aobj 130 9K 9K 78643K 138 0 0 |
| memdesc 1 4K 4K 78643K 1 0 0 |
| crypto data 1 1K 1K 78643K 1 0 0 |
| ip6_options 0 0K 0K 78643K 1949 0 0 |
| NDP 7 0K 0K 78643K 786 0 0 |
| temp 121 3562K 3673K 78643K 55189 0 0 |
| kqueue 0 0K 0K 78643K 233 0 0 |
| SYN cache 2 16K 16K 78643K 2 0 0 |
| ddb{0}> show all pools |
| Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle |
| arp 64 539 0 533 1 0 1 1 0 8 0 |
| plcache 128 20 0 0 1 0 1 1 0 8 0 |
| rtpcb 80 1717 0 1715 1 0 1 1 0 8 0 |
| rtentry 112 2653 0 2607 2 0 2 2 0 8 0 |
| unpcb 120 6934 0 6916 15 13 2 2 0 8 1 |
| syncache 264 66 0 66 26 26 0 1 0 8 0 |
| sackhl 24 1 0 1 1 1 0 1 0 8 0 |
| tcpqe 32 23 0 23 11 11 0 1 0 8 0 |
| tcpcb 544 13696 0 13692 134 132 2 15 0 8 1 |
| ipq 40 117 0 117 42 41 1 1 0 8 1 |
| ipqe 40 3285 0 3285 42 41 1 1 0 8 1 |
| inpcb 280 21678 0 21669 142 133 9 14 0 8 8 |
| ip6q 72 2 0 2 1 1 0 1 0 8 0 |
| ip6af 40 6 0 6 1 1 0 1 0 8 0 |
| nd6 48 523 0 519 1 0 1 1 0 8 0 |
| art_heap8 4096 1 0 0 1 0 1 1 0 8 0 |
| art_heap4 256 11722 0 11477 18 2 16 16 0 8 0 |
| art_table 32 11723 0 11477 2 0 2 2 0 8 0 |
| art_node 16 2652 0 2610 1 0 1 1 0 8 0 |
| sysvmsgpl 40 63 0 44 1 0 1 1 0 8 0 |
| semupl 112 1 0 1 1 1 0 1 0 8 0 |
| semapl 112 3556 0 3546 1 0 1 1 0 8 0 |
| shmpl 112 136 0 8 4 0 4 4 0 8 0 |
| dirhash 1024 17 0 0 3 0 3 3 0 8 0 |
| dino1pl 128 12338 0 10908 49 2 47 47 0 8 0 |
| ffsino 272 12338 0 10908 99 3 96 96 0 8 0 |
| nchpl 144 25326 0 23706 61 0 61 61 0 8 0 |
| uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 |
| vnodes 208 5926 0 0 312 0 312 312 0 8 0 |
| namei 1024 119725 0 119724 3 2 1 1 0 8 0 |
| percpumem 16 30 0 0 1 0 1 1 0 8 0 |
| scxspl 192 82534 0 82533 89 86 3 7 0 8 2 |
| plimitpl 152 1792 0 1783 1 0 1 1 0 8 0 |
| sigapl 432 9907 0 9893 15 13 2 3 0 8 0 |
| futexpl 56 190310 0 190310 3 2 1 1 0 8 1 |
| knotepl 112 8145 0 8126 26 24 2 3 0 8 1 |
| kqueuepl 104 5674 0 5672 35 34 1 4 0 8 0 |
| pipepl 112 8448 0 8429 21 19 2 2 0 8 1 |
| fdescpl 488 9908 0 9893 3 0 3 3 0 8 1 |
| filepl 152 94293 0 94196 155 143 12 14 0 8 8 |
| lockfpl 104 4261 0 4260 1 0 1 1 0 8 0 |
| lockfspl 48 1696 0 1695 1 0 1 1 0 8 0 |
| sessionpl 112 276 0 266 1 0 1 1 0 8 0 |
| pgrppl 48 341 0 331 1 0 1 1 0 8 0 |
| ucredpl 96 17740 0 17731 1 0 1 1 0 8 0 |
| zombiepl 144 9893 0 9893 3 2 1 1 0 8 1 |
| processpl 896 9924 0 9893 4 0 4 4 0 8 0 |
| procpl 632 26375 0 26334 7 2 5 5 0 8 1 |
| srpgc 64 518 0 518 19 18 1 1 0 8 1 |
| sosppl 128 250 0 250 37 36 1 1 0 8 1 |
| sockpl 384 30581 0 30554 212 199 13 23 0 8 8 |
| mcl64k 65536 54 0 0 5 1 4 4 0 8 0 |
| mcl16k 16384 25 0 0 3 0 3 3 0 8 0 |
| mcl12k 12288 41 0 0 2 0 2 2 0 8 0 |
| mcl9k 9216 39 0 0 2 0 2 2 0 8 0 |
| mcl8k 8192 33 0 0 4 1 3 3 0 8 0 |
| mcl4k 4096 25 0 0 3 0 3 3 0 8 0 |
| mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 |
| mcl2k 2048 157 0 0 18 0 18 18 0 8 0 |
| mtagpl 80 1 0 0 1 0 1 1 0 8 0 |
| mbufpl 256 1049 0 0 20 0 20 20 0 8 0 |
| bufpl 256 29668 0 22624 441 0 441 441 0 8 0 |
| anonpl 16 1328711 0 1318900 228 162 66 67 0 124 10 |
| amapchunkpl 152 101470 0 101363 234 224 10 19 0 158 4 |
| amappl16 192 45300 0 44630 289 244 45 49 0 8 7 |
| amappl15 184 1118 0 1118 24 24 0 1 0 8 0 |
| amappl14 176 3018 0 3010 1 0 1 1 0 8 0 |
| amappl13 168 852 0 852 26 26 0 1 0 8 0 |
| amappl12 160 1126 0 1120 1 0 1 1 0 8 0 |
| amappl11 152 1946 0 1935 1 0 1 1 0 8 0 |
| amappl10 144 1173 0 1169 1 0 1 1 0 8 0 |
| amappl9 136 4917 0 4911 1 0 1 1 0 8 0 |
| amappl8 128 3657 0 3565 4 0 4 4 0 8 0 |
| amappl7 120 2157 0 2145 1 0 1 1 0 8 0 |
| amappl6 112 1259 0 1242 1 0 1 1 0 8 0 |
| amappl5 104 2929 0 2920 1 0 1 1 0 8 0 |
| amappl4 96 9653 0 9618 2 1 1 2 0 8 0 |
| amappl3 88 2181 0 2168 1 0 1 1 0 8 0 |
| amappl2 80 58494 0 58429 3 1 2 3 0 8 0 |
| amappl1 72 285518 0 285105 41 32 9 20 0 8 0 |
| amappl 80 30987 0 30951 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 17 0 17 1 1 0 1 0 8 0 |
| aobjpl 64 137 0 8 3 0 3 3 0 8 0 |
| uaddrrnd 24 9908 0 9893 1 0 1 1 0 8 0 |
| uaddrbest 32 2 0 0 1 0 1 1 0 8 0 |
| uaddr 24 9908 0 9893 1 0 1 1 0 8 0 |
| vmmpekpl 168 96598 0 96566 2 0 2 2 0 8 0 |
| vmmpepl 168 1382308 0 1380473 358 242 116 126 0 357 20 |
| vmsppl 368 9907 0 9893 2 0 2 2 0 8 0 |
| pdppl 4096 19823 0 19786 8 2 6 6 0 8 1 |
| pvpl 32 3568330 0 3555367 515 351 164 174 0 265 26 |
| pmappl 232 9907 0 9893 36 34 2 2 0 8 1 |
| extentpl 40 41 0 26 1 0 1 1 0 8 0 |
| phpool 112 764 0 145 18 0 18 18 0 8 0 |
