[ 21298] 0 21298 17617 8745 114688 0 0 syz-executor2 [ 21299] 0 21299 17617 8745 118784 0 0 syz-executor2 [ 21300] 0 21300 17617 8745 118784 0 0 syz-executor2 [ 21301] 0 21301 17617 8745 118784 0 0 syz-executor2 [ 21302] 0 21302 17617 8745 114688 0 0 syz-executor2 INFO: task syz-executor2:10921 blocked for more than 140 seconds. [ 21303] 0 21303 17617 8745 118784 0 0 syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 21304] 0 21304 17617 8745 118784 0 0 syz-executor2 syz-executor2 D22568 10921 10772 0x00000000 [ 21305] 0 21305 17617 8745 118784 0 0 syz-executor2 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x87c/0x1df0 kernel/sched/core.c:3473 [ 21306] 0 21306 17617 8745 118784 0 0 syz-executor2 [ 21307] 0 21307 17617 8745 118784 0 0 syz-executor2 [ 21308] 0 21308 17617 8745 118784 0 0 syz-executor2 [ 21309] 0 21309 17617 8745 118784 0 0 syz-executor2 [ 21310] 0 21310 17617 8745 118784 0 0 syz-executor2 [ 21311] 0 21311 17617 8745 118784 0 0 syz-executor2 schedule+0xfb/0x450 kernel/sched/core.c:3517 [ 21312] 0 21312 17617 8745 118784 0 0 syz-executor2 [ 21313] 0 21313 17617 8745 118784 0 0 syz-executor2 [ 21314] 0 21314 17617 8745 118784 0 0 syz-executor2 [ 21315] 0 21315 17617 8745 118784 0 0 syz-executor2 [ 21316] 0 21316 17617 8745 118784 0 0 syz-executor2 __rwsem_down_write_failed_common+0x98b/0x1650 kernel/locking/rwsem-xadd.c:566 [ 21317] 0 21317 17617 8745 118784 0 0 syz-executor2 [ 21318] 0 21318 17617 8745 118784 0 0 syz-executor2 [ 21319] 0 21319 17617 8745 118784 0 0 syz-executor2 [ 21320] 0 21320 17617 8745 118784 0 0 syz-executor2 [ 21321] 0 21321 17617 8745 118784 0 0 syz-executor2 [ 21322] 0 21322 17617 8745 118784 0 0 syz-executor2 [ 21323] 0 21323 17617 8745 118784 0 0 syz-executor2 [ 21324] 0 21324 17617 8745 118784 0 0 syz-executor2 [ 21325] 0 21325 17617 8745 118784 0 0 syz-executor2 [ 21326] 0 21326 17617 8745 114688 0 0 syz-executor2 [ 21327] 0 21327 17617 8745 118784 0 0 syz-executor2 [ 21328] 0 21328 17617 8745 118784 0 0 syz-executor2 [ 21329] 0 21329 17617 8745 118784 0 0 syz-executor2 [ 21330] 0 21330 17617 8745 118784 0 0 syz-executor2 [ 21331] 0 21331 17617 8745 118784 0 0 syz-executor2 [ 21332] 0 21332 17617 8745 118784 0 0 syz-executor2 [ 21333] 0 21333 17617 8745 118784 0 0 syz-executor2 [ 21334] 0 21334 17617 8745 118784 0 0 syz-executor2 [ 21335] 0 21335 17617 8745 118784 0 0 syz-executor2 [ 21336] 0 21336 17617 8745 118784 0 0 syz-executor2 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 [ 21337] 0 21337 17617 8745 118784 0 0 syz-executor2 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 [ 21338] 0 21338 17617 8745 118784 0 0 syz-executor2 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 [ 21339] 0 21339 17617 8745 118784 0 0 syz-executor2 [ 21340] 0 21340 17617 8745 118784 0 0 syz-executor2 [ 21341] 0 21341 17617 8745 118784 0 0 syz-executor2 i_mmap_lock_write include/linux/fs.h:490 [inline] dup_mmap kernel/fork.c:512 [inline] dup_mm kernel/fork.c:1275 [inline] copy_mm kernel/fork.c:1330 [inline] copy_process+0x3ca3/0x7af0 kernel/fork.c:1870 [ 21342] 0 21342 17617 8745 118784 0 0 syz-executor2 [ 21343] 0 21343 17617 8745 118784 0 0 syz-executor2 [ 21344] 0 21344 17617 8745 118784 0 0 syz-executor2 [ 21345] 0 21345 17617 8745 118784 0 0 syz-executor2 [ 21346] 0 21346 17617 8745 118784 0 0 syz-executor2 [ 21347] 0 21347 17617 8745 118784 0 0 syz-executor2 [ 21348] 0 21348 17617 8745 118784 0 0 syz-executor2 [ 21349] 0 21349 17617 8745 118784 0 0 syz-executor2 [ 19354] 0 19354 17617 8745 118784 0 0 syz-executor2 [ 21350] 0 21350 17617 8745 118784 0 0 syz-executor2 [ 21351] 0 21351 17617 8745 118784 0 0 syz-executor2 [ 21352] 0 21352 17617 8745 114688 0 0 syz-executor2 [ 21353] 0 21353 17617 8745 118784 0 0 syz-executor2 [ 21354] 0 21354 17617 8745 118784 0 0 syz-executor2 [ 21355] 0 21355 17617 8745 118784 0 0 syz-executor2 [ 21356] 0 21356 17617 8745 118784 0 0 syz-executor2 [ 21357] 0 21357 17617 8745 118784 0 0 syz-executor2 [ 21358] 0 21358 17617 8745 118784 0 0 syz-executor2 [ 21359] 0 21359 17617 8745 118784 0 0 syz-executor2 [ 21360] 0 21360 17617 8745 118784 0 0 syz-executor2 [ 21361] 0 21361 17617 8745 118784 0 0 syz-executor2 [ 21362] 0 21362 17617 8745 118784 0 0 syz-executor2 [ 21363] 0 21363 17617 8745 118784 0 0 syz-executor2 [ 21364] 0 21364 17617 8745 118784 0 0 syz-executor2 [ 21365] 0 21365 17617 8745 118784 0 0 syz-executor2 [ 21366] 0 21366 17617 8745 118784 0 0 syz-executor2 [ 21367] 0 21367 17617 8745 118784 0 0 syz-executor2 [ 21368] 0 21368 17617 8745 118784 0 0 syz-executor2 [ 21369] 0 21369 17617 8745 118784 0 0 syz-executor2 _do_fork+0x1ca/0x1170 kernel/fork.c:2169 [ 21370] 0 21370 17617 8745 118784 0 0 syz-executor2 [ 21371] 0 21371 17617 8745 118784 0 0 syz-executor2 [ 21372] 0 21372 17617 8745 118784 0 0 syz-executor2 [ 21373] 0 21373 17617 8745 118784 0 0 syz-executor2 [ 21374] 0 21374 17617 8745 118784 0 0 syz-executor2 [ 21376] 0 21376 17617 8745 118784 0 0 syz-executor2 [ 21377] 0 21377 17617 8745 118784 0 0 syz-executor2 [ 21378] 0 21378 17617 8745 118784 0 0 syz-executor2 [ 21379] 0 21379 17617 8745 114688 0 0 syz-executor2 __do_sys_clone kernel/fork.c:2276 [inline] __se_sys_clone kernel/fork.c:2270 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2270 [ 21380] 0 21380 17617 8745 118784 0 0 syz-executor2 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 [ 21381] 0 21381 17617 8745 118784 0 0 syz-executor2 [ 21382] 0 21382 17617 8745 118784 0 0 syz-executor2 [ 21383] 0 21383 17617 8745 118784 0 0 syz-executor2 [ 21384] 0 21384 17617 8745 118784 0 0 syz-executor2 [ 21385] 0 21385 17617 8745 118784 0 0 syz-executor2 entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 21386] 0 21386 17617 8745 118784 0 0 syz-executor2 RIP: 0033:0x457099 Code: 48 8b 54 24 38 48 8b 7c 24 48 eb 8d 48 8b 6c 24 50 48 83 c4 58 c3 48 89 04 24 48 89 5c 24 08 e8 fd a8 fb ff 48 8b 44 24 40 48 <8b> 4c 24 48 48 8b 54 24 38 4c 8b 54 24 18 e9 ee fe ff ff 48 89 74 [ 21387] 0 21387 17617 8745 118784 0 0 syz-executor2 RSP: 002b:00007f98a3edbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 21388] 0 21388 17617 8745 118784 0 0 syz-executor2 RAX: ffffffffffffffda RBX: 00007f98a3edc6d4 RCX: 0000000000457099 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0002000000000000 [ 21389] 0 21389 17617 8745 118784 0 0 syz-executor2 RBP: 00000000009300a0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff [ 21390] 0 21390 17617 8745 118784 0 0 syz-executor2 R13: 00000000004cbae8 R14: 00000000004c33c7 R15: 0000000000000000 INFO: task syz-executor2:11028 blocked for more than 140 seconds. [ 21391] 0 21391 17617 8745 118784 0 0 syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55 [ 21392] 0 21392 17617 8745 114688 0 0 syz-executor2 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D [ 21393] 0 21393 17617 8745 118784 0 0 syz-executor2 22504 11028 10805 0x00000000 [ 21394] 0 21394 17617 8745 118784 0 0 syz-executor2 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x87c/0x1df0 kernel/sched/core.c:3473 [ 21395] 0 21395 17617 8745 118784 0 0 syz-executor2 [ 21396] 0 21396 17617 8745 118784 0 0 syz-executor2 [ 21397] 0 21397 17617 8745 118784 0 0 syz-executor2 [ 21398] 0 21398 17617 8745 118784 0 0 syz-executor2 [ 21399] 0 21399 17617 8745 118784 0 0 syz-executor2 schedule+0xfb/0x450 kernel/sched/core.c:3517 [ 21400] 0 21400 17617 8745 118784 0 0 syz-executor2 [ 21401] 0 21401 17617 8745 118784 0 0 syz-executor2 [ 21402] 0 21402 17617 8745 118784 0 0 syz-executor2 [ 21403] 0 21403 17617 8745 118784 0 0 syz-executor2 [ 21404] 0 21404 17617 8745 118784 0 0 syz-executor2 __rwsem_down_write_failed_common+0x98b/0x1650 kernel/locking/rwsem-xadd.c:566 [ 21405] 0 21405 17617 8745 114688 0 0 syz-executor2 [ 21406] 0 21406 17617 8745 118784 0 0 syz-executor2 [ 21407] 0 21407 17617 8745 118784 0 0 syz-executor2 [ 21408] 0 21408 17617 8745 118784 0 0 syz-executor2 [ 21409] 0 21409 17617 8745 118784 0 0 syz-executor2 [ 21410] 0 21410 17617 8745 118784 0 0 syz-executor2 [ 21411] 0 21411 17617 8745 118784 0 0 syz-executor2 [ 21412] 0 21412 17617 8745 118784 0 0 syz-executor2 [ 21413] 0 21413 17617 8745 118784 0 0 syz-executor2 [ 21414] 0 21414 17617 8745 118784 0 0 syz-executor2 [ 21415] 0 21415 17617 8745 118784 0 0 syz-executor2 [ 21416] 0 21416 17617 8745 118784 0 0 syz-executor2 [ 21417] 0 21417 17617 8745 118784 0 0 syz-executor2 [ 21419] 0 21419 17617 8745 118784 0 0 syz-executor2 [ 21420] 0 21420 17617 8745 114688 0 0 syz-executor2 [ 21421] 0 21421 17617 8745 118784 0 0 syz-executor2 [ 21422] 0 21422 17617 8745 114688 0 0 syz-executor2 [ 21423] 0 21423 17617 8745 118784 0 0 syz-executor2 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 [ 21424] 0 21424 17617 8745 118784 0 0 syz-executor2 [ 21425] 0 21425 17617 8745 118784 0 0 syz-executor2 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 [ 21426] 0 21426 17617 8745 118784 0 0 syz-executor2 [ 21427] 0 21427 17617 8745 118784 0 0 syz-executor2 i_mmap_lock_write include/linux/fs.h:490 [inline] dup_mmap kernel/fork.c:512 [inline] dup_mm kernel/fork.c:1275 [inline] copy_mm kernel/fork.c:1330 [inline] copy_process+0x3ca3/0x7af0 kernel/fork.c:1870 [ 21428] 0 21428 17617 8745 118784 0 0 syz-executor2 [ 21429] 0 21429 17617 8745 118784 0 0 syz-executor2 [ 21430] 0 21430 17617 8745 118784 0 0 syz-executor2 [ 21431] 0 21431 17617 8745 114688 0 0 syz-executor2 [ 21432] 0 21432 17617 8745 118784 0 0 syz-executor2 [ 21433] 0 21433 17617 8745 118784 0 0 syz-executor2 [ 21434] 0 21434 17617 8745 118784 0 0 syz-executor2 [ 21435] 0 21435 17617 8745 118784 0 0 syz-executor2 [ 21437] 0 21437 17617 8745 118784 0 0 syz-executor2 [ 21438] 0 21438 17617 8745 118784 0 0 syz-executor2 [ 21439] 0 21439 17617 8745 118784 0 0 syz-executor2 [ 21440] 0 21440 17617 8745 118784 0 0 syz-executor2 [ 21441] 0 21441 17617 8745 118784 0 0 syz-executor2 [ 21442] 0 21442 17617 8745 118784 0 0 syz-executor2 [ 21443] 0 21443 17617 8745 114688 0 0 syz-executor2 [ 21444] 0 21444 17617 8745 118784 0 0 syz-executor2 [ 21445] 0 21445 17617 8745 118784 0 0 syz-executor2 [ 21446] 0 21446 17617 8745 118784 0 0 syz-executor2 [ 21447] 0 21447 17617 8745 114688 0 0 syz-executor2 [ 21448] 0 21448 17617 8745 118784 0 0 syz-executor2 [ 21449] 0 21449 17617 8745 118784 0 0 syz-executor2 [ 21450] 0 21450 17617 8745 118784 0 0 syz-executor2 [ 21451] 0 21451 17617 8745 118784 0 0 syz-executor2 [ 21452] 0 21452 17617 8745 118784 0 0 syz-executor2 [ 21453] 0 21453 17617 8745 118784 0 0 syz-executor2 [ 21454] 0 21454 17617 8745 118784 0 0 syz-executor2 [ 21455] 0 21455 17617 8745 118784 0 0 syz-executor2 [ 21456] 0 21456 17617 8745 118784 0 0 syz-executor2 [ 21457] 0 21457 17617 8745 114688 0 0 syz-executor2 [ 21458] 0 21458 17617 8745 118784 0 0 syz-executor2 [ 21459] 0 21459 17617 8745 114688 0 0 syz-executor2 _do_fork+0x1ca/0x1170 kernel/fork.c:2169 [ 21460] 0 21460 17617 8745 118784 0 0 syz-executor2 [ 21461] 0 21461 17617 8745 118784 0 0 syz-executor2 [ 21462] 0 21462 17617 8745 118784 0 0 syz-executor2 [ 21463] 0 21463 17617 8745 118784 0 0 syz-executor2 [ 21464] 0 21464 17617 8745 118784 0 0 syz-executor2 [ 21465] 0 21465 17617 8745 118784 0 0 syz-executor2 [ 21466] 0 21466 17617 8745 118784 0 0 syz-executor2 [ 19538] 0 19538 17617 8745 118784 0 0 syz-executor2 [ 21467] 0 21467 17617 8745 118784 0 0 syz-executor2 __do_sys_clone kernel/fork.c:2276 [inline] __se_sys_clone kernel/fork.c:2270 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2270 [ 21468] 0 21468 17617 8745 114688 0 0 syz-executor2 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 [ 21469] 0 21469 17617 8745 118784 0 0 syz-executor2 [ 21470] 0 21470 17617 8745 118784 0 0 syz-executor2 [ 21471] 0 21471 17617 8745 118784 0 0 syz-executor2 [ 21472] 0 21472 17617 8745 118784 0 0 syz-executor2 [ 21473] 0 21473 17617 8745 118784 0 0 syz-executor2 entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 21474] 0 21474 17617 8745 118784 0 0 syz-executor2 RIP: 0033:0x457099 Code: 48 8b 54 24 38 48 8b 7c 24 48 eb 8d 48 8b 6c 24 50 48 83 c4 58 c3 48 89 04 24 48 89 5c 24 08 e8 fd a8 fb ff 48 8b 44 24 40 48 <8b> 4c 24 48 48 8b 54 24 38 4c 8b 54 24 18 e9 ee fe ff ff 48 89 74 [ 21475] 0 21475 17617 8745 118784 0 0 syz-executor2 RSP: 002b:00007f98a3edbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 21476] 0 21476 17617 8745 118784 0 0 syz-executor2 RAX: ffffffffffffffda RBX: 00007f98a3edc6d4 RCX: 0000000000457099 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0002000000000000 [ 21477] 0 21477 17617 8745 118784 0 0 syz-executor2 RBP: 00000000009300a0 R08: ffffffffffffffff R09: 0000000000000000 [ 21478] 0 21478 17617 8745 118784 0 0 syz-executor2 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cbae8 R14: 00000000004c33c7 R15: 0000000000000000 [ 21479] 0 21479 17617 8745 118784 0 0 syz-executor2 [ 21480] 0 21480 17617 8745 118784 0 0 syz-executor2 [ 21481] 0 21481 17617 8745 118784 0 0 syz-executor2 [ 21482] 0 21482 17617 8745 118784 0 0 syz-executor2 [ 21483] 0 21483 17617 8745 118784 0 0 syz-executor2 [ 21484] 0 21484 17617 8745 118784 0 0 syz-executor2 [ 21485] 0 21485 17617 8745 118784 0 0 syz-executor2 [ 21486] 0 21486 17617 8745 118784 0 0 syz-executor2 [ 21487] 0 21487 17617 8745 114688 0 0 syz-executor2 [ 21488] 0 21488 17617 8745 118784 0 0 syz-executor2 [ 21490] 0 21490 17617 8745 118784 0 0 syz-executor2 [ 21491] 0 21491 17617 8745 118784 0 0 syz-executor2 [ 21492] 0 21492 17617 8745 118784 0 0 syz-executor2 [ 21493] 0 21493 17617 8745 118784 0 0 syz-executor2 [ 21494] 0 21494 17617 8745 118784 0 0 syz-executor2 [ 21495] 0 21495 17617 8745 118784 0 0 syz-executor2 [ 21496] 0 21496 17617 8745 118784 0 0 syz-executor2 [ 21497] 0 21497 17617 8745 118784 0 0 syz-executor2 [ 21498] 0 21498 17617 8745 118784 0 0 syz-executor2 [ 21499] 0 21499 17617 8745 118784 0 0 syz-executor2 [ 21500] 0 21500 17617 8745 114688 0 0 syz-executor2 [ 21501] 0 21501 17617 8745 118784 0 0 syz-executor2 [ 21502] 0 21502 17617 8745 118784 0 0 syz-executor2 [ 21503] 0 21503 17617 8745 118784 0 0 syz-executor2 [ 21504] 0 21504 17617 8745 118784 0 0 syz-executor2 [ 21505] 0 21505 17617 8745 118784 0 0 syz-executor2 [ 21506] 0 21506 17617 8745 118784 0 0 syz-executor2 [ 21507] 0 21507 17617 8745 118784 0 0 syz-executor2 [ 21508] 0 21508 17617 8745 118784 0 0 syz-executor2 [ 21509] 0 21509 17617 8745 118784 0 0 syz-executor2 [ 21510] 0 21510 17617 8745 118784 0 0 syz-executor2 [ 21511] 0 21511 17617 8745 118784 0 0 syz-executor2 [ 21512] 0 21512 17617 8745 118784 0 0 syz-executor2 [ 21513] 0 21513 17617 8745 118784 0 0 syz-executor2 [ 21514] 0 21514 17617 8745 118784 0 0 syz-executor2 [ 21515] 0 21515 17617 8745 118784 0 0 syz-executor2 [ 21516] 0 21516 17617 8745 118784 0 0 syz-executor2 [ 21517] 0 21517 17617 8745 118784 0 0 syz-executor2 [ 21518] 0 21518 17617 8745 118784 0 0 syz-executor2 [ 21519] 0 21519 17617 8745 118784 0 0 syz-executor2 [ 21520] 0 21520 17617 8745 118784 0 0 syz-executor2 [ 21521] 0 21521 17617 8745 118784 0 0 syz-executor2 [ 21522] 0 21522 17617 8745 118784 0 0 syz-executor2 [ 21523] 0 21523 17617 8745 118784 0 0 syz-executor2 [ 21524] 0 21524 17617 8745 118784 0 0 syz-executor2 [ 21525] 0 21525 17617 8745 118784 0 0 syz-executor2 [ 21526] 0 21526 17617 8745 114688 0 0 syz-executor2 [ 21527] 0 21527 17617 8745 118784 0 0 syz-executor2 [ 21528] 0 21528 17617 8745 118784 0 0 syz-executor2 [ 21529] 0 21529 17617 8745 114688 0 0 syz-executor2 [ 21530] 0 21530 17617 8745 114688 0 0 syz-executor2 [ 21531] 0 21531 17617 8745 118784 0 0 syz-executor2 [ 21532] 0 21532 17617 8745 118784 0 0 syz-executor2 [ 21533] 0 21533 17617 8745 118784 0 0 syz-executor2 [ 21534] 0 21534 17617 8745 118784 0 0 syz-executor2 [ 21535] 0 21535 17617 8745 118784 0 0 syz-executor2 [ 21536] 0 21536 17617 8745 118784 0 0 syz-executor2 [ 21537] 0 21537 17617 8745 118784 0 0 syz-executor2 [ 21538] 0 21538 17617 8745 118784 0 0 syz-executor2 [ 21539] 0 21539 17617 8745 118784 0 0 syz-executor2 [ 21540] 0 21540 17617 8745 118784 0 0 syz-executor2 [ 21541] 0 21541 17617 8745 118784 0 0 syz-executor2 [ 21542] 0 21542 17617 8745 118784 0 0 syz-executor2 [ 21543] 0 21543 17617 8745 118784 0 0 syz-executor2 [ 21544] 0 21544 17617 8745 118784 0 0 syz-executor2 [ 21545] 0 21545 17617 8745 118784 0 0 syz-executor2 [ 21546] 0 21546 17617 8745 118784 0 0 syz-executor2 [ 21547] 0 21547 17617 8745 118784 0 0 syz-executor2 [ 21548] 0 21548 17617 8745 118784 0 0 syz-executor2 [ 21549] 0 21549 17617 8745 118784 0 0 syz-executor2 [ 21550] 0 21550 17617 8745 114688 0 0 syz-executor2 [ 21551] 0 21551 17617 8745 118784 0 0 syz-executor2 [ 21552] 0 21552 17617 8745 118784 0 0 syz-executor2 [ 21553] 0 21553 17617 8745 118784 0 0 syz-executor2 [ 21554] 0 21554 17617 8745 118784 0 0 syz-executor2 [ 21555] 0 21555 17617 8745 118784 0 0 syz-executor2 [ 21556] 0 21556 17617 8745 118784 0 0 syz-executor2 [ 21557] 0 21557 17617 8745 118784 0 0 syz-executor2 [ 21558] 0 21558 17617 8745 118784 0 0 syz-executor2 [ 21559] 0 21559 17617 8745 118784 0 0 syz-executor2 [ 21560] 0 21560 17617 8745 118784 0 0 syz-executor2 [ 21561] 0 21561 17617 8745 118784 0 0 syz-executor2 [ 19633] 0 19633 17617 8745 118784 0 0 syz-executor2 [ 21562] 0 21562 17617 8745 118784 0 0 syz-executor2 [ 21563] 0 21563 17617 8745 118784 0 0 syz-executor2 [ 21564] 0 21564 17617 8745 118784 0 0 syz-executor2 [ 21565] 0 21565 17617 8745 118784 0 0 syz-executor2 [ 21566] 0 21566 17617 8745 118784 0 0 syz-executor2 [ 21567] 0 21567 17617 8745 118784 0 0 syz-executor2 [ 21569] 0 21569 17617 8745 118784 0 0 syz-executor2 rcu: INFO: rcu_sched self-detected stall on CPU rcu: 1-....: (16359 ticks this GP) idle=dfa/1/0x4000000000000002 softirq=39269/39271 fqs=11227 rcu: (t=105003 jiffies g=88877 q=209) NMI backtrace for cpu 1 CPU: 1 PID: 4301 Comm: syz-fuzzer Not tainted 4.19.0-rc2-next-20180904+ #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x48/0x88 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340 print_cpu_stall.cold.78+0x2fb/0x59c kernel/rcu/tree.c:1478 check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xd4a/0x15a0 kernel/rcu/tree.c:2665 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x3eb/0xff0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x16d/0x6a0 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:867 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0xc57/0x10d0 kernel/printk/printk.c:2415 Code: c1 e8 03 42 80 3c 30 00 0f 85 40 04 00 00 48 83 3d f5 6c ae 06 00 0f 84 a1 02 00 00 e8 f2 84 19 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 c3 f5 ff ff e8 da 84 19 00 48 8d 7b 08 48 89 f8 RSP: 0018:ffff8801caf76048 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801cafba640 RBX: 0000000000000200 RCX: 1ffff100395f75ed RDX: 0000000000000000 RSI: ffffffff8163517e RDI: 0000000000000293 RBP: ffff8801caf761a8 R08: ffff8801cafbae80 R09: 0000000000000006 R10: ffff8801cafba640 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff84214170 R14: dffffc0000000000 R15: 0000000000003301 vprintk_emit+0x33a/0x910 kernel/printk/printk.c:1926 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967 vprintk_func+0x7a/0x117 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:2000 dump_tasks mm/oom_kill.c:420 [inline] dump_header+0xf0d/0xf70 mm/oom_kill.c:450 oom_kill_process.cold.28+0x10/0x95a mm/oom_kill.c:953 out_of_memory+0xa88/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3529 [inline] __alloc_pages_slowpath+0x223f/0x2cb0 mm/page_alloc.c:4242 __alloc_pages_nodemask+0xa1b/0xd10 mm/page_alloc.c:4397 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x398/0x5e0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1458/0x2220 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0xee/0x450 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x2b4a/0x4350 mm/memory.c:4107 handle_mm_fault+0x53e/0xc80 mm/memory.c:4144 __do_page_fault+0x620/0xe50 arch/x86/mm/fault.c:1395 do_page_fault+0xf6/0x7a4 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1164 RIP: 0033:0x407e06 Code: cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 83 05 00 00 48 83 ec 58 48 89 6c 24 50 48 8d 6c 24 50 48 8b 54 24 60 <48> 8b 5a 48 48 8b 1b 48 83 fb 30 0f 85 d4 04 00 00 48 8b 5c 24 68 RSP: 002b:000000c4314b7a38 EFLAGS: 00010212 RAX: 0000000000809640 RBX: 000000c4314b7f80 RCX: 000000c420000180 RDX: 0000000000809640 RSI: 000000c4314b7a70 RDI: 000000c4314b7a70 RBP: 000000c4314b7a88 R08: 000000c420019370 R09: 000000c420019578 R10: 0000000000000000 R11: 0000000000000001 R12: 000000c4314b7b90 R13: 000000c4314b7b90 R14: 0000000000000000 R15: 0000000000000000 [ 21570] 0 21570 17617 8745 118784 0 0 syz-executor2 [ 21571] 0 21571 17617 8745 114688 0 0 syz-executor2 [ 21572] 0 21572 17617 8745 118784 0 0 syz-executor2 [ 21573] 0 21573 17617 8745 118784 0 0 syz-executor2 [ 21574] 0 21574 17617 8745 118784 0 0 syz-executor2 [ 21575] 0 21575 17617 8745 118784 0 0 syz-executor2 [ 21576] 0 21576 17617 8745 118784 0 0 syz-executor2 [ 21577] 0 21577 17617 8745 118784 0 0 syz-executor2 [ 21578] 0 21578 17617 8745 118784 0 0 syz-executor2 [ 21579] 0 21579 17617 8745 118784 0 0 syz-executor2 [ 21580] 0 21580 17617 8745 114688 0 0 syz-executor2 [ 21581] 0 21581 17617 8745 118784 0 0 syz-executor2 [ 21582] 0 21582 17617 8745 118784 0 0 syz-executor2 [ 21583] 0 21583 17617 8745 118784 0 0 syz-executor2 [ 21584] 0 21584 17617 8745 118784 0 0 syz-executor2 [ 21585] 0 21585 17617 8745 118784 0 0 syz-executor2 [ 21586] 0 21586 17617 8745 118784 0 0 syz-executor2 [ 21587] 0 21587 17617 8745 118784 0 0 syz-executor2 [ 21588] 0 21588 17617 8745 114688 0 0 syz-executor2 [ 21589] 0 21589 17617 8745 118784 0 0 syz-executor2 [ 21590] 0 21590 17617 8745 118784 0 0 syz-executor2 [ 21591] 0 21591 17617 8745 118784 0 0 syz-executor2 [ 21592] 0 21592 17617 8745 118784 0 0 syz-executor2 [ 21593] 0 21593 17617 8745 118784 0 0 syz-executor2 [ 21594] 0 21594 17617 8745 114688 0 0 syz-executor2 [ 21595] 0 21595 17617 8745 118784 0 0 syz-executor2 [ 21596] 0 21596 17617 8745 114688 0 0 syz-executor2 [ 21597] 0 21597 17617 8745 118784 0 0 syz-executor2 [ 21598] 0 21598 17617 8745 114688 0 0 syz-executor2 [ 21599] 0 21599 17617 8745 118784 0 0 syz-executor2 [ 21600] 0 21600 17617 8745 118784 0 0 syz-executor2 [ 21601] 0 21601 17617 8745 118784 0 0 syz-executor2 [ 21602] 0 21602 17617 8745 118784 0 0 syz-executor2 [ 21604] 0 21604 17617 8745 118784 0 0 syz-executor2 [ 21605] 0 21605 17617 8745 118784 0 0 syz-executor2 [ 21606] 0 21606 17617 8745 118784 0 0 syz-executor2 [ 21607] 0 21607 17617 8745 118784 0 0 syz-executor2 [ 21608] 0 21608 17617 8745 118784 0 0 syz-executor2 [ 21609] 0 21609 17617 8745 114688 0 0 syz-executor2 [ 21610] 0 21610 17617 8745 118784 0 0 syz-executor2 [ 21611] 0 21611 17617 8745 118784 0 0 syz-executor2 [ 21612] 0 21612 17617 8745 118784 0 0 syz-executor2 [ 21613] 0 21613 17617 8745 118784 0 0 syz-executor2 [ 21614] 0 21614 17617 8745 118784 0 0 syz-executor2 [ 21615] 0 21615 17617 8745 118784 0 0 syz-executor2 [ 21616] 0 21616 17617 8745 118784 0 0 syz-executor2 [ 21617] 0 21617 17617 8745 118784 0 0 syz-executor2 [ 21618] 0 21618 17617 8745 118784 0 0 syz-executor2 [ 21619] 0 21619 17617 8745 114688 0 0 syz-executor2 [ 21620] 0 21620 17617 8745 118784 0 0 syz-executor2 [ 21621] 0 21621 17617 8745 118784 0 0 syz-executor2 [ 21622] 0 21622 17617 8745 118784 0 0 syz-executor2 [ 21623] 0 21623 17617 8745 118784 0 0 syz-executor2 [ 21624] 0 21624 17617 8745 118784 0 0 syz-executor2 [ 21625] 0 21625 17617 8745 118784 0 0 syz-executor2 [ 21626] 0 21626 17617 8745 118784 0 0 syz-executor2 [ 21627] 0 21627 17617 8745 118784 0 0 syz-executor2 [ 21628] 0 21628 17617 8745 118784 0 0 syz-executor2 [ 21629] 0 21629 17617 8745 118784 0 0 syz-executor2 [ 21630] 0 21630 17617 8745 118784 0 0 syz-executor2 [ 21631] 0 21631 17617 8745 118784 0 0 syz-executor2 [ 21632] 0 21632 17617 8745 118784 0 0 syz-executor2 [ 21633] 0 21633 17617 8745 118784 0 0 syz-executor2 [ 21634] 0 21634 17617 8745 118784 0 0 syz-executor2 [ 21635] 0 21635 17617 8745 118784 0 0 syz-executor2 [ 21636] 0 21636 17617 8745 118784 0 0 syz-executor2 [ 21637] 0 21637 17617 8745 118784 0 0 syz-executor2 [ 21638] 0 21638 17617 8745 118784 0 0 syz-executor2 [ 21639] 0 21639 17617 8745 118784 0 0 syz-executor2 [ 21640] 0 21640 17617 8745 118784 0 0 syz-executor2 [ 21641] 0 21641 17617 8745 118784 0 0 syz-executor2 [ 21642] 0 21642 17617 8745 118784 0 0 syz-executor2 [ 21643] 0 21643 17617 8745 118784 0 0 syz-executor2 [ 21644] 0 21644 17617 8745 118784 0 0 syz-executor2 [ 21645] 0 21645 17617 8745 118784 0 0 syz-executor2 [ 21646] 0 21646 17617 8745 118784 0 0 syz-executor2 [ 21647] 0 21647 17617 8745 114688 0 0 syz-executor2 [ 21648] 0 21648 17617 8745 118784 0 0 syz-executor2 [ 21649] 0 21649 17617 8745 118784 0 0 syz-executor2 [ 21650] 0 21650 17617 8745 118784 0 0 syz-executor2 [ 21651] 0 21651 17617 8745 118784 0 0 syz-executor2 [ 21652] 0 21652 17617 8745 118784 0 0 syz-executor2 [ 21653] 0 21653 17617 8745 118784 0 0 syz-executor2 [ 21654] 0 21654 17617 8745 118784 0 0 syz-executor2 [ 21655] 0 21655 17617 8745 118784 0 0 syz-executor2 [ 21656] 0 21656 17617 8745 118784 0 0 syz-executor2 [ 21657] 0 21657 17617 8745 118784 0 0 syz-executor2 [ 21658] 0 21658 17617 8745 118784 0 0 syz-executor2 [ 21659] 0 21659 17617 8745 118784 0 0 syz-executor2 [ 21660] 0 21660 17617 8745 118784 0 0 syz-executor2 [ 21661] 0 21661 17617 8745 118784 0 0 syz-executor2 [ 21662] 0 21662 17617 8745 118784 0 0 syz-executor2 [ 21663] 0 21663 17617 8745 114688 0 0 syz-executor2 [ 21664] 0 21664 17617 8745 118784 0 0 syz-executor2 [ 21665] 0 21665 17617 8745 118784 0 0 syz-executor2 [ 21666] 0 21666 17617 8745 118784 0 0 syz-executor2 [ 21667] 0 21667 17617 8745 118784 0 0 syz-executor2 [ 21668] 0 21668 17617 8745 118784 0 0 syz-executor2 [ 21669] 0 21669 17617 8745 118784 0 0 syz-executor2 [ 21670] 0 21670 17617 8745 118784 0 0 syz-executor2 [ 21671] 0 21671 17617 8745 118784 0 0 syz-executor2 [ 21672] 0 21672 17617 8745 118784 0 0 syz-executor2 [ 21673] 0 21673 17617 8745 118784 0 0 syz-executor2 [ 21674] 0 21674 17617 8745 118784 0 0 syz-executor2 [ 21675] 0 21675 17617 8745 118784 0 0 syz-executor2 [ 21676] 0 21676 17617 8745 118784 0 0 syz-executor2 INFO: task syz-executor2:11165 blocked for more than 140 seconds. [ 21677] 0 21677 17617 8745 118784 0 0 syz-executor2 [ 21678] 0 21678 17617 8745 114688 0 0 syz-executor2 [ 21679] 0 21679 17617 8745 114688 0 0 syz-executor2 [ 21680] 0 21680 17617 8745 118784 0 0 syz-executor2 [ 21681] 0 21681 17617 8745 118784 0 0 syz-executor2 [ 21682] 0 21682 17617 8745 118784 0 0 syz-executor2 [ 21683] 0 21683 17617 8745 118784 0 0 syz-executor2 [ 21684] 0 21684 17617 8745 118784 0 0 syz-executor2 [ 21685] 0 21685 17617 8745 118784 0 0 syz-executor2 [ 21686] 0 21686 17617 8745 118784 0 0 syz-executor2 [ 21687] 0 21687 17617 8745 118784 0 0 syz-executor2 [ 21688] 0 21688 17617 8745 118784 0 0 syz-executor2 [ 21689] 0 21689 17617 8745 118784 0 0 syz-executor2 [ 21690] 0 21690 17617 8745 118784 0 0 syz-executor2 [ 21691] 0 21691 17617 8745 118784 0 0 syz-executor2 [ 21692] 0 21692 17617 8745 118784 0 0 syz-executor2 [ 21693] 0 21693 17617 8745 118784 0 0 syz-executor2 [ 21694] 0 21694 17617 8745 114688 0 0 syz-executor2 [ 21695] 0 21695 17617 8745 118784 0 0 syz-executor2 [ 21696] 0 21696 17617 8745 118784 0 0 syz-executor2 [ 21697] 0 21697 17617 8745 118784 0 0 syz-executor2 [ 21698] 0 21698 17617 8745 118784 0 0 syz-executor2 [ 21699] 0 21699 17617 8745 118784 0 0 syz-executor2 [ 21700] 0 21700 17617 8745 118784 0 0 syz-executor2 [ 21701] 0 21701 17617 8745 118784 0 0 syz-executor2 [ 19683] 0 19683 17617 8745 118784 0 0 syz-executor2 [ 21702] 0 21702 17617 8745 118784 0 0 syz-executor2 [ 21703] 0 21703 17617 8745 118784 0 0 syz-executor2 [ 21704] 0 21704 17617 8745 118784 0 0 syz-executor2 [ 21705] 0 21705 17617 8745 118784 0 0 syz-executor2 [ 21706] 0 21706 17617 8745 114688 0 0 syz-executor2 [ 21707] 0 21707 17617 8745 118784 0 0 syz-executor2 [ 21708] 0 21708 17617 8745 118784 0 0 syz-executor2 [ 21709] 0 21709 17617 8745 118784 0 0 syz-executor2 [ 21710] 0 21710 17617 8745 118784 0 0 syz-executor2 [ 21711] 0 21711 17617 8745 118784 0 0 syz-executor2 [ 21712] 0 21712 17617 8745 118784 0 0 syz-executor2 [ 21713] 0 21713 17617 8745 118784 0 0 syz-executor2 [ 21714] 0 21714 17617 8745 118784 0 0 syz-executor2 [ 21715] 0 21715 17617 8745 118784 0 0 syz-executor2 [ 21716] 0 21716 17617 8745 118784 0 0 syz-executor2 [ 21717] 0 21717 17617 8745 118784 0 0 syz-executor2 [ 21718] 0 21718 17617 8745 114688 0 0 syz-executor2 [ 21719] 0 21719 17617 8745 114688 0 0 syz-executor2 [ 21720] 0 21720 17617 8745 118784 0 0 syz-executor2 [ 21721] 0 21721 17617 8745 118784 0 0 syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 21723] 0 21723 17617 8745 118784 0 0 syz-executor2 syz-executor2 D16520 11165 11010 0x00000000 [ 21724] 0 21724 17617 8745 114688 0 0 syz-executor2 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x87c/0x1df0 kernel/sched/core.c:3473 [ 21725] 0 21725 17617 8745 118784 0 0 syz-executor2 [ 21726] 0 21726 17617 8745 114688 0 0 syz-executor2 [ 21727] 0 21727 17617 8745 118784 0 0 syz-executor2 [ 21728] 0 21728 17617 8745 118784 0 0 syz-executor2 [ 21729] 0 21729 17617 8745 118784 0 0 syz-executor2 [ 21730] 0 21730 17617 8745 118784 0 0 syz-executor2 schedule+0xfb/0x450 kernel/sched/core.c:3517 [ 21731] 0 21731 17617 8745 118784 0 0 syz-executor2 [ 21732] 0 21732 17617 8745 114688 0 0 syz-executor2 [ 21733] 0 21733 17617 8745 118784 0 0 syz-executor2 [ 21734] 0 21734 17617 8745 118784 0 0 syz-executor2 [ 19716] 0 19716 17617 8745 118784 0 0 syz-executor2 [ 21735] 0 21735 17617 8745 118784 0 0 syz-executor2 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x362/0x610 kernel/locking/rwsem-xadd.c:286 [ 21736] 0 21736 17617 8745 118784 0 0 syz-executor2 [ 21737] 0 21737 17617 8745 118784 0 0 syz-executor2 [ 21738] 0 21738 17617 8745 118784 0 0 syz-executor2 [ 21739] 0 21739 17617 8745 118784 0 0 syz-executor2 [ 21740] 0 21740 17617 8745 118784 0 0 syz-executor2 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 [ 21741] 0 21741 17617 8745 118784 0 0 syz-executor2 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0xc3/0x1d0 kernel/locking/rwsem.c:26 [ 21742] 0 21742 17617 8745 118784 0 0 syz-executor2 [ 21743] 0 21743 17617 8745 118784 0 0 syz-executor2 [ 21744] 0 21744 17617 8745 118784 0 0 syz-executor2 i_mmap_lock_read include/linux/fs.h:500 [inline] rmap_walk_file+0x7db/0xea0 mm/rmap.c:1876 [ 21745] 0 21745 17617 8745 118784 0 0 syz-executor2 [ 21746] 0 21746 17617 8745 118784 0 0 syz-executor2 [ 21747] 0 21747 17617 8745 114688 0 0 syz-executor2 [ 21748] 0 21748 17617 8745 118784 0 0 syz-executor2 [ 21749] 0 21749 17617 8745 118784 0 0 syz-executor2 [ 21750] 0 21750 17617 8745 118784 0 0 syz-executor2 [ 21751] 0 21751 17617 8745 118784 0 0 syz-executor2 [ 21752] 0 21752 17617 8745 118784 0 0 syz-executor2 [ 21753] 0 21753 17617 8745 118784 0 0 syz-executor2 rmap_walk+0x244/0x370 mm/rmap.c:1904 [ 21754] 0 21754 17617 8745 118784 0 0 syz-executor2 [ 21755] 0 21755 17617 8745 118784 0 0 syz-executor2 [ 21756] 0 21756 17617 8745 114688 0 0 syz-executor2 [ 21757] 0 21757 17617 8745 118784 0 0 syz-executor2 [ 21758] 0 21758 17617 8745 118784 0 0 syz-executor2 page_referenced+0x88c/0xae0 mm/rmap.c:874 [ 21759] 0 21759 17617 8745 118784 0 0 syz-executor2 [ 21760] 0 21760 17617 8745 114688 0 0 syz-executor2 [ 21761] 0 21761 17617 8745 114688 0 0 syz-executor2 [ 21762] 0 21762 17617 8745 118784 0 0 syz-executor2 [ 21763] 0 21763 17617 8745 114688 0 0 syz-executor2 [ 21764] 0 21764 17617 8745 118784 0 0 syz-executor2 [ 21765] 0 21765 17617 8745 118784 0 0 syz-executor2 shrink_active_list+0x88a/0x17b0 mm/vmscan.c:2119 [ 21766] 0 21766 17617 8745 118784 0 0 syz-executor2 [ 19745] 0 19745 17617 8745 118784 0 0 syz-executor2 [ 21767] 0 21767 17617 8745 114688 0 0 syz-executor2 [ 21768] 0 21768 17617 8745 118784 0 0 syz-executor2 [ 21769] 0 21769 17617 8745 118784 0 0 syz-executor2 [ 21770] 0 21770 17617 8745 118784 0 0 syz-executor2 [ 21771] 0 21771 17617 8745 118784 0 0 syz-executor2 [ 21772] 0 21772 17617 8745 118784 0 0 syz-executor2 [ 21773] 0 21773 17617 8745 118784 0 0 syz-executor2 [ 21774] 0 21774 17617 8745 118784 0 0 syz-executor2 [ 21775] 0 21775 17617 8745 118784 0 0 syz-executor2 [ 21776] 0 21776 17617 8745 118784 0 0 syz-executor2 [ 21777] 0 21777 17617 8745 118784 0 0 syz-executor2 shrink_list mm/vmscan.c:2250 [inline] shrink_node_memcg+0x803/0x18f0 mm/vmscan.c:2517 [ 19752] 0 19752 17617 8745 118784 0 0 syz-executor2 [ 21778] 0 21778 17617 8745 118784 0 0 syz-executor2 [ 21779] 0 21779 17617 8745 118784 0 0 syz-executor2 [ 21781] 0 21781 17617 8745 118784 0 0 syz-executor2 shrink_node+0x3b9/0x16a0 mm/vmscan.c:2732 [ 21782] 0 21782 17617 8745 118784 0 0 syz-executor2 [ 21783] 0 21783 17617 8745 118784 0 0 syz-executor2 [ 21784] 0 21784 17617 8745 118784 0 0 syz-executor2 [ 21785] 0 21785 17617 8745 118784 0 0 syz-executor2 [ 21786] 0 21786 17617 8745 118784 0 0 syz-executor2 [ 21787] 0 21787 17617 8745 118784 0 0 syz-executor2 [ 21788] 0 21788 17617 8745 118784 0 0 syz-executor2 [ 21789] 0 21789 17617 8745 118784 0 0 syz-executor2 shrink_zones mm/vmscan.c:2964 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026 [ 21790] 0 21790 17617 8745 118784 0 0 syz-executor2 [ 21791] 0 21791 17617 8745 114688 0 0 syz-executor2 [ 21792] 0 21792 17617 8745 118784 0 0 syz-executor2 try_to_free_pages+0x4b2/0xa60 mm/vmscan.c:3241 [ 21793] 0 21793 17617 8745 118784 0 0 syz-executor2 [ 21794] 0 21794 17617 8745 118784 0 0 syz-executor2 [ 21795] 0 21795 17617 8745 118784 0 0 syz-executor2 [ 21796] 0 21796 17617 8745 118784 0 0 syz-executor2 [ 21797] 0 21797 17617 8745 118784 0 0 syz-executor2 [ 21798] 0 21798 17617 8745 118784 0 0 syz-executor2 [ 21799] 0 21799 17617 8745 118784 0 0 syz-executor2 __perform_reclaim mm/page_alloc.c:3776 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3797 [inline] __alloc_pages_slowpath+0x95a/0x2cb0 mm/page_alloc.c:4198 [ 21800] 0 21800 17617 8745 118784 0 0 syz-executor2 [ 21801] 0 21801 17617 8745 118784 0 0 syz-executor2 [ 21802] 0 21802 17617 8745 114688 0 0 syz-executor2 [ 21803] 0 21803 17617 8745 118784 0 0 syz-executor2 [ 21804] 0 21804 17617 8745 118784 0 0 syz-executor2 [ 21805] 0 21805 17617 8745 118784 0 0 syz-executor2 [ 21806] 0 21806 17617 8745 118784 0 0 syz-executor2 [ 21807] 0 21807 17617 8745 118784 0 0 syz-executor2 [ 21808] 0 21808 17617 8745 118784 0 0 syz-executor2 [ 21810] 0 21810 17617 8745 114688 0 0 syz-executor2 [ 21811] 0 21811 17617 8745 118784 0 0 syz-executor2 [ 21812] 0 21812 17617 8745 118784 0 0 syz-executor2 [ 21813] 0 21813 17617 8745 118784 0 0 syz-executor2 [ 21814] 0 21814 17617 8745 118784 0 0 syz-executor2 [ 21815] 0 21815 17617 8745 118784 0 0 syz-executor2 [ 21816] 0 21816 17617 8745 118784 0 0 syz-executor2 __alloc_pages_nodemask+0xa1b/0xd10 mm/page_alloc.c:4397 [ 21817] 0 21817 17617 8745 118784 0 0 syz-executor2 [ 21818] 0 21818 17617 8745 118784 0 0 syz-executor2 [ 21819] 0 21819 17617 8745 114688 0 0 syz-executor2 [ 21820] 0 21820 17617 8745 118784 0 0 syz-executor2 [ 21821] 0 21821 17617 8745 118784 0 0 syz-executor2 [ 21822] 0 21822 17617 8745 118784 0 0 syz-executor2 [ 21823] 0 21823 17617 8745 118784 0 0 syz-executor2 [ 21824] 0 21824 17617 8745 114688 0 0 syz-executor2 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x710 mm/slab.c:2677 [ 21825] 0 21825 17617 8745 118784 0 0 syz-executor2 [ 21826] 0 21826 17617 8745 118784 0 0 syz-executor2 fallback_alloc+0x203/0x2c0 mm/slab.c:3219 [ 21827] 0 21827 17617 8745 118784 0 0 syz-executor2 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 [ 21828] 0 21828 17617 8745 114688 0 0 syz-executor2 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc+0x1e5/0x710 mm/slab.c:3552 [ 21829] 0 21829 17617 8745 118784 0 0 syz-executor2 vm_area_dup+0x7a/0x220 kernel/fork.c:324 [ 21830] 0 21830 17617 8745 118784 0 0 syz-executor2 [ 21831] 0 21831 17617 8745 118784 0 0 syz-executor2 dup_mmap kernel/fork.c:485 [inline] dup_mm kernel/fork.c:1275 [inline] copy_mm kernel/fork.c:1330 [inline] copy_process+0x3a48/0x7af0 kernel/fork.c:1870 [ 21832] 0 21832 17617 8745 118784 0 0 syz-executor2 [ 21833] 0 21833 17617 8745 118784 0 0 syz-executor2 [ 21834] 0 21834 17617 8745 118784 0 0 syz-executor2 [ 21835] 0 21835 17617 8745 118784 0 0 syz-executor2 [ 21836] 0 21836 17617 8745 118784 0 0 syz-executor2 [ 21837] 0 21837 17617 8745 118784 0 0 syz-executor2 [ 21838] 0 21838 17617 8745 118784 0 0 syz-executor2 [ 21839] 0 21839 17617 8745 118784 0 0 syz-executor2 [ 21840] 0 21840 17617 8745 118784 0 0 syz-executor2 [ 21841] 0 21841 17617 8745 114688 0 0 syz-executor2 [ 21842] 0 21842 17617 8745 118784 0 0 syz-executor2 [ 21843] 0 21843 17617 8745 118784 0 0 syz-executor2 [ 21844] 0 21844 17617 8745 118784 0 0 syz-executor2 [ 21845] 0 21845 17617 8745 118784 0 0 syz-executor2 [ 21846] 0 21846 17617 8745 118784 0 0 syz-executor2 [ 21847] 0 21847 17617 8745 118784 0 0 syz-executor2 [ 21848] 0 21848 17617 8745 118784 0 0 syz-executor2 [ 21849] 0 21849 17617 8745 118784 0 0 syz-executor2 [ 21850] 0 21850 17617 8745 118784 0 0 syz-executor2 [ 21851] 0 21851 17617 8745 118784 0 0 syz-executor2 [ 21852] 0 21852 17617 8745 118784 0 0 syz-executor2 [ 21853] 0 21853 17617 8745 118784 0 0 syz-executor2 [ 21854] 0 21854 17617 8745 118784 0 0 syz-executor2 [ 21855] 0 21855 17617 8745 114688 0 0 syz-executor2 [ 21856] 0 21856 17617 8745 118784 0 0 syz-executor2 [ 21857] 0 21857 17617 8745 118784 0 0 syz-executor2 [ 21858] 0 21858 17617 8745 118784 0 0 syz-executor2 [ 21859] 0 21859 17617 8745 114688 0 0 syz-executor2 [ 21860] 0 21860 17617 8745 118784 0 0 syz-executor2 _do_fork+0x1ca/0x1170 kernel/fork.c:2169 [ 21861] 0 21861 17617 8745 118784 0 0 syz-executor2 [ 21862] 0 21862 17617 8745 118784 0 0 syz-executor2 [ 21863] 0 21863 17617 8745 118784 0 0 syz-executor2 [ 21864] 0 21864 17617 8745 118784 0 0 syz-executor2 [ 21865] 0 21865 17617 8745 118784 0 0 syz-executor2 [ 21866] 0 21866 17617 8745 118784 0 0 syz-executor2 [ 21867] 0 21867 17617 8745 118784 0 0 syz-executor2 [ 21868] 0 21868 17617 8745 118784 0 0 syz-executor2 [ 21869] 0 21869 17617 8745 118784 0 0 syz-executor2 __do_sys_clone kernel/fork.c:2276 [inline] __se_sys_clone kernel/fork.c:2270 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2270 [ 21870] 0 21870 17617 8745 118784 0 0 syz-executor2 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 [ 21871] 0 21871 17617 8745 118784 0 0 syz-executor2 [ 21872] 0 21872 17617 8745 118784 0 0 syz-executor2 [ 21873] 0 21873 17617 8745 114688 0 0 syz-executor2 [ 21874] 0 21874 17617 8745 118784 0 0 syz-executor2 [ 21875] 0 21875 17617 8745 118784 0 0 syz-executor2 entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 21876] 0 21876 17617 8745 118784 0 0 syz-executor2 RIP: 0033:0x457099 Code: 48 8b 54 24 38 48 8b 7c 24 48 eb 8d 48 8b 6c 24 50 48 83 c4 58 c3 48 89 04 24 48 89 5c 24 08 e8 fd a8 fb ff 48 8b 44 24 40 48 <8b> 4c 24 48 48 8b 54 24 38 4c 8b 54 24 18 e9 ee fe ff ff 48 89 74 [ 21877] 0 21877 17617 8745 118784 0 0 syz-executor2 RSP: 002b:00007f98a3edbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 21878] 0 21878 17617 8745 118784 0 0 syz-executor2 RAX: ffffffffffffffda RBX: 00007f98a3edc6d4 RCX: 0000000000457099 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0002000000000000 [ 21879] 0 21879 17617 8745 118784 0 0 syz-executor2 RBP: 00000000009300a0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff [ 21880] 0 21880 17617 8745 118784 0 0 syz-executor2 R13: 00000000004cbae8 R14: 00000000004c33c7 R15: 0000000000000000 INFO: task syz-executor2:11249 blocked for more than 140 seconds. [ 21881] 0 21881 17617 8745 118784 0 0 syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 21882] 0 21882 17617 8745 118784 0 0 syz-executor2 syz-executor2 D23064 11249 10868 0x00000000 [ 21883] 0 21883 17617 8745 118784 0 0 syz-executor2 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x87c/0x1df0 kernel/sched/core.c:3473 [ 21884] 0 21884 17617 8745 118784 0 0 syz-executor2 [ 21885] 0 21885 17617 8745 118784 0 0 syz-executor2 [ 21886] 0 21886 17617 8745 118784 0 0 syz-executor2 [ 21887] 0 21887 17617 8745 114688 0 0 syz-executor2 [ 21888] 0 21888 17617 8745 118784 0 0 syz-executor2 [ 21889] 0 21889 17617 8745 118784 0 0 syz-executor2 schedule+0xfb/0x450 kernel/sched/core.c:3517 [ 21890] 0 21890 17617 8745 114688 0 0 syz-executor2 [ 21891] 0 21891 17617 8745 114688 0 0 syz-executor2 [ 21892] 0 21892 17617 8745 114688 0 0 syz-executor2 [ 21893] 0 21893 17617 8745 118784 0 0 syz-executor2 [ 21894] 0 21894 17617 8745 114688 0 0 syz-executor2 [ 21895] 0 21895 17617 8745 118784 0 0 syz-executor2 [ 21896] 0 21896 17617 8745 118784 0 0 syz-executor2 __rwsem_down_write_failed_common+0x98b/0x1650 kernel/locking/rwsem-xadd.c:566 [ 21897] 0 21897 17617 8745 118784 0 0 syz-executor2 [ 21898] 0 21898 17617 8745 118784 0 0 syz-executor2 [ 21899] 0 21899 17617 8745 118784 0 0 syz-executor2 [ 21900] 0 21900 17617 8745 118784 0 0 syz-executor2 [ 21901] 0 21901 17617 8745 114688 0 0 syz-executor2 [ 21902] 0 21902 17617 8745 118784 0 0 syz-executor2 [ 21903] 0 21903 17617 8745 118784 0 0 syz-executor2 [ 21904] 0 21904 17617 8745 118784 0 0 syz-executor2 [ 21905] 0 21905 17617 8745 118784 0 0 syz-executor2 [ 21906] 0 21906 17617 8745 118784 0 0 syz-executor2 [ 21907] 0 21907 17617 8745 114688 0 0 syz-executor2 [ 21908] 0 21908 17617 8745 114688 0 0 syz-executor2 [ 21909] 0 21909 17617 8745 118784 0 0 syz-executor2 [ 21910] 0 21910 17617 8745 118784 0 0 syz-executor2 [ 21911] 0 21911 17617 8745 118784 0 0 syz-executor2 [ 21912] 0 21912 17617 8745 118784 0 0 syz-executor2 [ 21913] 0 21913 17617 8745 114688 0 0 syz-executor2 [ 21914] 0 21914 17617 8745 118784 0 0 syz-executor2 [ 21915] 0 21915 17617 8745 118784 0 0 syz-executor2 [ 21916] 0 21916 17617 8745 118784 0 0 syz-executor2 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 [ 21918] 0 21918 17617 8745 118784 0 0 syz-executor2 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 [ 21919] 0 21919 17617 8745 118784 0 0 syz-executor2 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 [ 21920] 0 21920 17617 8745 118784 0 0 syz-executor2 [ 21921] 0 21921 17617 8745 118784 0 0 syz-executor2 [ 21922] 0 21922 17617 8745 114688 0 0 syz-executor2 i_mmap_lock_write include/linux/fs.h:490 [inline] dup_mmap kernel/fork.c:512 [inline] dup_mm kernel/fork.c:1275 [inline] copy_mm kernel/fork.c:1330 [inline] copy_process+0x3ca3/0x7af0 kernel/fork.c:1870 [ 21923] 0 21923 17617 8745 118784 0 0 syz-executor2 [ 21924] 0 21924 17617 8745 118784 0 0 syz-executor2 [ 21925] 0 21925 17617 8745 118784 0 0 syz-executor2 [ 21926] 0 21926 17617 8745 114688 0 0 syz-executor2 [ 21927] 0 21927 17617 8745 118784 0 0 syz-executor2 [ 21928] 0 21928 17617 8745 114688 0 0 syz-executor2 [ 21929] 0 21929 17617 8745 118784 0 0 syz-executor2 [ 21930] 0 21930 17617 8745 114688 0 0 syz-executor2 [ 21931] 0 21931 17617 8745 118784 0 0 syz-executor2 [ 21932] 0 21932 17617 8745 118784 0 0 syz-executor2 [ 21933] 0 21933 17617 8745 114688 0 0 syz-executor2 [ 21934] 0 21934 17617 8745 118784 0 0 syz-executor2 [ 21935] 0 21935 17617 8745 118784 0 0 syz-executor2 [ 21936] 0 21936 17617 8745 118784 0 0 syz-executor2 [ 21937] 0 21937 17617 8745 114688 0 0 syz-executor2 [ 21938] 0 21938 17617 8745 118784 0 0 syz-executor2 [ 21939] 0 21939 17617 8745 118784 0 0 syz-executor2 [ 21940] 0 21940 17617 8745 114688 0 0 syz-executor2 [ 21941] 0 21941 17617 8745 118784 0 0 syz-executor2 [ 21942] 0 21942 17617 8745 118784 0 0 syz-executor2 [ 21943] 0 21943 17617 8745 118784 0 0 syz-executor2 [ 21944] 0 21944 17617 8745 114688 0 0 syz-executor2 [ 21945] 0 21945 17617 8745 118784 0 0 syz-executor2 [ 21946] 0 21946 17617 8745 118784 0 0 syz-executor2 [ 21947] 0 21947 17617 8745 114688 0 0 syz-executor2 [ 21948] 0 21948 17617 8745 118784 0 0 syz-executor2 [ 21949] 0 21949 17617 8745 114688 0 0 syz-executor2 [ 21950] 0 21950 17617 8745 118784 0 0 syz-executor2 [ 21951] 0 21951 17617 8745 118784 0 0 syz-executor2 [ 21952] 0 21952 17617 8745 114688 0 0 syz-executor2 _do_fork+0x1ca/0x1170 kernel/fork.c:2169 [ 21953] 0 21953 17617 8745 118784 0 0 syz-executor2 [ 21954] 0 21954 17617 8745 114688 0 0 syz-executor2 [ 21955] 0 21955 17617 8745 114688 0 0 syz-executor2 [ 21956] 0 21956 17617 8745 114688 0 0 syz-executor2 [ 21957] 0 21957 17617 8745 114688 0 0 syz-executor2 [ 21958] 0 21958 17617 8745 114688 0 0 syz-executor2 [ 21959] 0 21959 17617 8745 114688 0 0 syz-executor2 [ 21960] 0 21960 17617 8745 118784 0 0 syz-executor2 [ 21961] 0 21961 17617 8745 114688 0 0 syz-executor2 __do_sys_clone kernel/fork.c:2276 [inline] __se_sys_clone kernel/fork.c:2270 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2270 [ 21962] 0 21962 17617 8745 118784 0 0 syz-executor2 [ 21963] 0 21963 17617 8745 114688 0 0 syz-executor2 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 [ 21964] 0 21964 17617 8745 118784 0 0 syz-executor2 [ 21965] 0 21965 17617 8745 114688 0 0 syz-executor2 [ 21966] 0 21966 17617 8745 118784 0 0 syz-executor2 [ 21967] 0 21967 17617 8745 114688 0 0 syz-executor2 [ 21968] 0 21968 17617 8745 118784 0 0 syz-executor2 entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 21969] 0 21969 17617 8745 118784 0 0 syz-executor2 RIP: 0033:0x457099 Code: 48 8b 54 24 38 48 8b 7c 24 48 eb 8d 48 8b 6c 24 50 48 83 c4 58 c3 48 89 04 24 48 89 5c 24 08 e8 fd a8 fb ff 48 8b 44 24 40 48 <8b> 4c 24 48 48 8b 54 24 38 4c 8b 54 24 18 e9 ee fe ff ff 48 89 74 [ 21970] 0 21970 17617 8745 114688 0 0 syz-executor2 RSP: 002b:00007f98a3edbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 21971] 0 21971 17617 8745 114688 0 0 syz-executor2 RAX: ffffffffffffffda RBX: 00007f98a3edc6d4 RCX: 0000000000457099 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0002000000000000 [ 21972] 0 21972 17617 8745 114688 0 0 syz-executor2 RBP: 00000000009300a0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff [ 21973] 0 21973 17617 8745 118784 0 0 syz-executor2 R13: 00000000004cbae8 R14: 00000000004c33c7 R15: 0000000000000000 INFO: task syz-executor2:11625 blocked for more than 140 seconds. [ 21974] 0 21974 17617 8745 114688 0 0 syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55