panic: a thread waited too long to allocate a page cpuid = 1 time = 40 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0085802230 kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0085802390 vpanic() at vpanic+0x257/frame 0xfffffe0085802550 panic() at panic+0xb5/frame 0xfffffe0085802620 vm_pageout_oom() at vm_pageout_oom+0xce4/frame 0xfffffe00858026b0 vm_fault_allocate() at vm_fault_allocate+0xe41/frame 0xfffffe0085802830 vm_fault() at vm_fault+0xd40/frame 0xfffffe0085802bc0 vm_fault_trap() at vm_fault_trap+0xbd/frame 0xfffffe0085802c10 trap_pfault() at trap_pfault+0x68b/frame 0xfffffe0085802d50 trap() at trap+0xf4b/frame 0xfffffe0085802f30 calltrap() at calltrap+0x8/frame 0xfffffe0085802f30 --- trap 0xc, rip = 0x2af7c9, rsp = 0x8260d4f10, rbp = 0x8260d4f80 --- KDB: enter: panic [ thread pid 4749 tid 104136 ] Stopped at kdb_enter+0x6e: movq $0,0x25beaa7(%rip) db> db> set $lines = 0 db> set $maxwidth = 0 db> show registers cs 0x20 ds 0x3b es 0x3b fs 0x13 gs 0x1b ss 0x28 rax 0x12 rcx 0xfffffe00033eee30 rdx 0 rbx 0xffffffff827b0400 .str.27 rsp 0xfffffe0085802370 rbp 0xfffffe0085802390 rsi 0 rdi 0xffffffff81614549 printf+0x149 r8 0 r9 0xffffffff r10 0x7f8b3 r11 0x17 r12 0xfffffe008629d740 r13 0xfffffffffffffffd r14 0xffffffff827b0400 .str.27 r15 0 rip 0xffffffff815fe6ee kdb_enter+0x6e rflags 0x46 kdb_enter+0x6e: movq $0,0x25beaa7(%rip) db> show proc Process 4749 (syz-executor) at 0xfffffe0086296560: state: NORMAL uid: 60929 gids: 0, 0, 5 parent: pid 1985 at 0xfffffe007c4de5a0 ABI: FreeBSD ELF64 flag: 0x10000100 flag2: 0 arguments: ./syz-executor exec reaper: 0xfffffe0008009040 reapsubtree: 1 sigparent: 20 vmspace: 0xfffffe0086286000 (map 0xfffffe0086286000) (map.pmap 0xfffffe00862860a0) (pmap 0xfffffe0086286110) threads: 1 104136 Run CPU 1 syz-executor db> ps pid ppid pgrp uid state wmesg wchan cmd 6649 1 1 0 N init 6648 763 761 0 NV syz-executor 6647 6647 0 60929 N syz-executor 6646 6646 0 60929 N syz-executor 6645 6645 0 60929 N syz-executor 6644 6644 0 60929 N syz-executor 6643 6643 0 60929 N syz-executor 6642 6642 0 60929 N syz-executor 6641 6641 0 60929 N syz-executor 6640 6640 0 60929 N syz-executor 6639 6639 0 60929 N syz-executor 6638 6638 0 60929 N syz-executor 6637 6637 0 60929 N syz-executor 6636 6636 0 60929 N syz-executor 6635 6635 0 60929 N syz-executor 6634 6634 0 60929 N syz-executor 6633 6633 0 60929 N syz-executor 6632 6632 0 60929 N syz-executor 6631 6631 0 60929 N syz-executor 6630 6630 0 60929 N syz-executor 6629 6629 0 60929 N syz-executor 6628 6628 0 60929 N syz-executor 6627 6627 0 60929 N syz-executor 6626 6626 0 60929 N syz-executor 6625 6625 0 60929 N syz-executor 6624 6624 0 60929 N syz-executor 6623 3103 767 60929 N syz-executor 6622 2365 767 60929 N syz-executor 6621 3102 767 60929 N syz-executor 6620 2364 767 60929 N syz-executor 6619 3100 767 60929 N syz-executor 6618 2363 767 60929 N syz-executor 6617 3096 767 60929 N syz-executor 6616 2362 767 60929 N syz-executor 6615 3094 767 60929 N syz-executor 6614 3093 767 60929 N syz-executor 6613 2360 767 60929 N syz-executor 6612 3092 767 60929 N syz-executor 6611 2359 767 60929 N syz-executor 6610 3089 767 60929 N syz-executor 6609 2358 767 60929 N syz-executor 6608 3086 767 60929 N syz-executor 6607 2357 767 60929 N syz-executor 6606 3085 767 60929 N syz-executor 6605 2356 767 60929 N syz-executor 6604 3084 767 60929 N syz-executor 6603 2355 767 60929 N syz-executor 6602 3082 767 60929 N syz-executor 6601 3081 767 60929 N syz-executor 6600 2354 767 60929 N syz-executor 6599 3079 767 60929 N syz-executor 6598 2353 767 60929 N syz-executor 6597 3078 767 60929 N syz-executor 6596 2352 767 60929 N syz-executor 6595 3076 767 60929 N syz-executor 6594 3072 767 60929 N syz-executor 6593 2351 767 60929 N syz-executor 6592 3070 767 60929 N syz-executor 6591 2349 767 60929 N syz-executor 6590 2348 767 60929 N syz-executor 6589 3069 767 60929 N syz-executor 6588 2347 767 60929 N syz-executor 6587 2346 767 60929 N syz-executor 6586 3067 767 60929 N syz-executor 6585 3064 767 60929 N syz-executor 6584 2345 767 60929 N syz-executor 6583 3063 767 60929 N syz-executor 6582 3062 767 60929 N syz-executor 6581 2344 767 60929 N syz-executor 6580 3060 767 60929 N syz-executor 6579 2343 767 60929 N syz-executor 6578 3057 767 60929 N syz-executor 6577 2342 767 60929 N syz-executor 6576 2340 767 60929 N syz-executor 6575 3053 767 60929 N syz-executor 6574 2339 767 60929 N syz-executor 6573 3051 767 60929 N syz-executor 6572 2338 767 60929 N syz-executor 6571 3049 767 60929 N syz-executor 6570 3048 767 60929 N syz-executor 6569 3046 767 60929 N syz-executor 6568 3044 767 60929 N syz-executor 6567 3043 767 60929 N syz-executor 6566 2337 767 60929 N syz-executor 6565 3041 767 60929 N syz-executor 6564 2335 767 60929 N syz-executor 6563 3038 767 60929 N syz-executor 6562 2334 767 60929 N syz-executor 6561 3036 767 60929 N syz-executor 6560 2333 767 60929 N syz-executor 6559 3034 767 60929 N syz-executor 6558 2332 767 60929 N syz-executor 6557 3032 767 60929 N syz-executor 6556 3031 767 60929 N syz-executor 6555 3029 767 60929 N syz-executor 6554 2330 767 60929 N syz-executor 6553 3028 767 60929 N syz-executor 6552 2328 767 60929 N syz-executor 6551 3026 767 60929 N syz-executor 6550 3023 767 60929 N syz-executor 6549 2327 767 60929 N syz-executor 6548 3022 767 60929 N syz-executor 6547 2326 767 60929 N syz-executor 6546 3020 767 60929 N syz-executor 6545 2325 767 60929 N syz-executor 6544 3019 767 60929 N syz-executor 6543 2324 767 60929 N syz-executor 6542 3016 767 60929 N syz-executor 6541 2323 767 60929 N syz-executor 6540 3014 767 60929 N syz-executor 6539 2322 767 60929 N syz-executor 6538 3012 767 60929 N syz-executor 6537 3011 767 60929 N syz-executor 6536 2320 767 60929 N syz-executor 6535 3010 767 60929 N syz-executor 6534 2319 767 60929 N syz-executor 6533 3007 767 60929 N syz-executor 6532 2317 767 60929 N syz-executor 6531 3006 767 60929 N syz-executor 6530 2315 767 60929 N syz-executor 6529 3005 767 60929 N syz-executor 6528 3003 767 60929 N syz-executor 6527 2312 767 60929 N syz-executor 6526 3000 767 60929 N syz-executor 6525 2310 767 60929 N syz-executor 6524 2999 767 60929 N syz-executor 6523 2308 767 60929 N syz-executor 6522 2997 767 60929 N syz-executor 6521 2995 767 60929 N syz-executor 6520 2307 767 60929 D pfault 0xffffffff83007480 syz-executor 6519 2994 767 60929 D pfault 0xffffffff83007480 syz-executor 6518 2306 767 60929 D pfault 0xffffffff83007480 syz-executor 6517 2304 767 60929 D pfault 0xffffffff83007480 syz-executor 6516 2991 767 60929 D pfault 0xffffffff83007480 syz-executor 6515 2989 767 60929 D pfault 0xffffffff83007480 syz-executor 6514 2302 767 60929 D pfault 0xffffffff83007480 syz-executor 6513 2297 767 60929 D pfault 0xffffffff83007480 syz-executor 6512 2295 767 60929 D pfault 0xffffffff83007480 syz-executor 6511 2293 767 60929 D pfault 0xffffffff83007480 syz-executor 6510 2292 767 60929 D pfault 0xffffffff83007480 syz-executor 6509 3454 767 60929 D pfault 0xffffffff83007480 syz-executor 6508 2291 767 60929 D pfault 0xffffffff83007480 syz-executor 6507 2289 767 60929 D pfault 0xffffffff83007480 syz-executor 6506 3451 767 60929 D pfault 0xffffffff83007480 syz-executor 6505 2287 767 60929 D pfault 0xffffffff83007480 syz-executor 6504 2285 767 60929 D pfault 0xffffffff83007480 syz-executor 6503 2282 767 60929 D pfault 0xffffffff83007480 syz-executor 6502 3449 767 60929 D pfault 0xffffffff83007480 syz-executor 6501 2280 767 60929 D pfault 0xffffffff83007480 syz-executor 6500 2278 767 60929 D pfault 0xffffffff83007480 syz-executor 6499 3447 767 60929 D pfault 0xffffffff83007480 syz-executor 6498 2277 767 60929 D pfault 0xffffffff83007480 syz-executor 6497 2273 767 60929 D pfault 0xffffffff83007480 syz-executor 6496 2272 767 60929 D pfault 0xffffffff83007480 syz-executor 6495 2268 767 60929 D pfault 0xffffffff83007480 syz-executor 6494 2266 767 60929 D pfault 0xffffffff83007480 syz-executor 6493 2265 767 60929 D pfault 0xffffffff83007480 syz-executor 6492 2264 767 60929 D pfault 0xffffffff83007480 syz-executor 6491 1323 767 60929 D pfault 0xffffffff83007480 syz-executor 6490 2262 767 60929 D pfault 0xffffffff83007480 syz-executor 6489 972 767 60929 D pfault 0xffffffff83007480 syz-executor 6488 2261 767 60929 D pfault 0xffffffff83007480 syz-executor 6487 2260 767 60929 D pfault 0xffffffff83007480 syz-executor 6486 2258 767 60929 D pfault 0xffffffff83007480 syz-executor 6485 2256 767 60929 D pfault 0xffffffff83007480 syz-executor 6484 2253 767 60929 D pfault 0xffffffff83007480 syz-executor 6483 2251 767 60929 D pfault 0xffffffff83007480 syz-executor 6482 2249 767 60929 D pfault 0xffffffff83007480 syz-executor 6481 2248 767 60929 D pfault 0xffffffff83007480 syz-executor 6480 2247 767 60929 D pfault 0xffffffff83007480 syz-executor 6479 2244 767 60929 D pfault 0xffffffff83007480 syz-executor 6478 2242 767 60929 D pfault 0xffffffff83007480 syz-executor 6477 2240 767 60929 D pfault 0xffffffff83007480 syz-executor 6476 2238 767 60929 D pfault 0xffffffff83007480 syz-executor 6475 2236 767 60929 D pfault 0xffffffff83007480 syz-executor 6474 2234 767 60929 D pfault 0xffffffff83007480 syz-executor 6473 2233 767 60929 D pfault 0xffffffff83007480 syz-executor 6472 2229 767 60929 D pfault 0xffffffff83007480 syz-executor 6471 2227 767 60929 D pfault 0xffffffff83007480 syz-executor 6470 2225 767 60929 D pfault 0xffffffff83007480 syz-executor 6469 2223 767 60929 D pfault 0xffffffff83007480 syz-executor 6468 2221 767 60929 D pfault 0xffffffff83007480 syz-executor 6467 2219 767 60929 D pfault 0xffffffff83007480 syz-executor 6466 2218 767 60929 D pfault 0xffffffff83007480 syz-executor 6465 2217 767 60929 D pfault 0xffffffff83007480 syz-executor 6464 2214 767 60929 D pfault 0xffffffff83007480 syz-executor 6463 2212 767 60929 D pfault 0xffffffff83007480 syz-executor 6462 2210 767 60929 D pfault 0xffffffff83007480 syz-executor 6461 2209 767 60929 D pfault 0xffffffff83007480 syz-executor 6460 2208 767 60929 D pfault 0xffffffff83007480 syz-executor 6459 2206 767 60929 D pfault 0xffffffff83007480 syz-executor 6458 2205 767 60929 D pfault 0xffffffff83007480 syz-executor 6457 2204 767 60929 D pfault 0xffffffff83007480 syz-executor 6456 2202 767 60929 D pfault 0xffffffff83007480 syz-executor 6455 2199 767 60929 D pfault 0xffffffff83007480 syz-executor 6454 2198 767 60929 D pfault 0xffffffff83007480 syz-executor 6453 2197 767 60929 D pfault 0xffffffff83007480 syz-executor 6452 2195 767 60929 D pfault 0xffffffff83007480 syz-executor 6451 2194 767 60929 D pfault 0xffffffff83007480 syz-executor 6450 2193 767 60929 D pfault 0xffffffff83007480 syz-executor 6449 2190 767 60929 D pfault 0xffffffff83007480 syz-executor 6448 2188 767 60929 D pfault 0xffffffff83007480 syz-executor 6447 2186 767 60929 D pfault 0xffffffff83007480 syz-executor 6446 2184 767 60929 D pfault 0xffffffff83007480 syz-executor 6445 2182 767 60929 D pfault 0xffffffff83007480 syz-executor 6444 2180 767 60929 D pfault 0xffffffff83007480 syz-executor 6443 2179 767 60929 D pfault 0xffffffff83007480 syz-executor 6442 2178 767 60929 D pfault 0xffffffff83007480 syz-executor 6441 2175 767 60929 D pfault 0xffffffff83007480 syz-executor 6440 2173 767 60929 D pfault 0xffffffff83007480 syz-executor 6439 2171 767 60929 D pfault 0xffffffff83007480 syz-executor 6438 2168 767 60929 D pfault 0xffffffff83007480 syz-executor 6437 2167 767 60929 D pfault 0xffffffff83007480 syz-executor 6436 2164 767 60929 D pfault 0xffffffff83007480 syz-executor 6435 2163 767 60929 D pfault 0xffffffff83007480 syz-executor 6434 2162 767 60929 D pfault 0xffffffff83007480 syz-executor 6433 2160 767 60929 D pfault 0xffffffff83007480 syz-executor 6432 2158 767 60929 D pfault 0xffffffff83007480 syz-executor 6431 2155 767 60929 D pfault 0xffffffff83007480 syz-executor 6430 2154 767 60929 D pfault 0xffffffff83007480 syz-executor 6429 2152 767 60929 D pfault 0xffffffff83007480 syz-executor 6428 2150 767 60929 D pfault 0xffffffff83007480 syz-executor 6427 2149 767 60929 D pfault 0xffffffff83007480 syz-executor 6426 2148 767 60929 D pfault 0xffffffff83007480 syz-executor 6425 2145 767 60929 D pfault 0xffffffff83007480 syz-executor 6424 2143 767 60929 D pfault 0xffffffff83007480 syz-executor 6423 2141 767 60929 D pfault 0xffffffff83007480 syz-executor 6422 2139 767 60929 D pfault 0xffffffff83007480 syz-executor 6421 2137 767 60929 D pfault 0xffffffff83007480 syz-executor 6420 2134 767 60929 D pfault 0xffffffff83007480 syz-executor 6419 2133 767 60929 D pfault 0xffffffff83007480 syz-executor 6418 2132 767 60929 D pfault 0xffffffff83007480 syz-executor 6417 2130 767 60929 D pfault 0xffffffff83007480 syz-executor 6416 2128 767 60929 D pfault 0xffffffff83007480 syz-executor 6415 2126 767 60929 D pfault 0xffffffff83007480 syz-executor 6414 2125 767 60929 D pfault 0xffffffff83007480 syz-executor 6413 2124 767 60929 D pfault 0xffffffff83007480 syz-executor 6412 2121 767 60929 D pfault 0xffffffff83007480 syz-executor 6411 2119 767 60929 D pfault 0xffffffff83007480 syz-executor 6410 2117 767 60929 D pfault 0xffffffff83007480 syz-executor 6409 2115 767 60929 D pfault 0xffffffff83007480 syz-executor 6408 2113 767 60929 D pfault 0xffffffff83007480 syz-executor 6407 2111 767 60929 D pfault 0xffffffff83007480 syz-executor 6406 2110 767 60929 D pfault 0xffffffff83007480 syz-executor 6405 2097 767 60929 D pfault 0xffffffff83007480 syz-executor 6404 2095 767 60929 D pfault 0xffffffff83007480 syz-executor 6403 2093 767 60929 D pfault 0xffffffff83007480 syz-executor 6402 2092 767 60929 D pfault 0xffffffff83007480 syz-executor 6401 2091 767 60929 D pfault 0xffffffff83007480 syz-executor 6400 2090 767 60929 D pfault 0xffffffff83007480 syz-executor 6399 2089 767 60929 D pfault 0xffffffff83007480 syz-executor 6398 2086 767 60929 D pfault 0xffffffff83007480 syz-executor 6397 2085 767 60929 D pfault 0xffffffff83007480 syz-executor 6396 2074 767 60929 D pfault 0xffffffff83007480 syz-executor 6395 2073 767 60929 D pfault 0xffffffff83007480 syz-executor 6394 2071 767 60929 D pfault 0xffffffff83007480 syz-executor 6393 2068 767 60929 D pfault 0xffffffff83007480 syz-executor serialport: VM disconnected.