[11535] 0 11535 18279 9115 26 4 0 1000 syz-executor.4 [11551] 0 11551 18213 8751 26 4 0 1000 syz-executor.5 [11562] 0 11562 18213 8988 26 4 0 1000 syz-executor.0 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1781 (detected by 0, t=10502 jiffies, g=135891, c=135890, q=298) syz-fuzzer R running task 26464 1781 1774 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517 filemap_fault+0x8da/0x18a0 mm/filemap.c:2518 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x9bf/0x2700 mm/memory.c:4113 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122 RIP: 0020:0x13 RSP: bf97e0:000000c4314a6e30 EFLAGS: 00000000 syz-fuzzer R running task 26464 1781 1774 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517 filemap_fault+0x8da/0x18a0 mm/filemap.c:2518 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x9bf/0x2700 mm/memory.c:4113 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122 RIP: 0020:0x13 RSP: bf97e0:000000c4314a6e30 EFLAGS: 00000000 [11594] 0 11594 18246 9021 26 4 0 1000 syz-executor.4 [11600] 0 11600 18279 8755 26 4 0 1000 syz-executor.5 [11643] 0 11643 18213 8751 26 4 0 1000 syz-executor.5 [11664] 0 11664 18312 9051 26 4 0 1000 syz-executor.4 [11690] 0 11690 18246 11079 29 4 0 1000 syz-executor.3 [11697] 0 11697 18213 8962 26 4 0 1000 syz-executor.0 [11703] 0 11703 18246 8753 26 4 0 1000 syz-executor.5 [11708] 0 11708 18279 9346 27 4 0 1000 syz-executor.4 [11755] 0 11755 18279 9546 27 4 0 1000 syz-executor.4 [11793] 0 11793 18246 8996 26 4 0 1000 syz-executor.0 [11800] 0 11800 18279 9115 26 4 0 1000 syz-executor.4 [11833] 0 11833 18213 8984 26 4 0 1000 syz-executor.0 [11842] 0 11842 18312 9054 27 4 0 1000 syz-executor.5 [11850] 0 11850 18246 9045 26 4 0 1000 syz-executor.4 [11875] 0 11875 18213 9442 27 4 0 1000 syz-executor.0 [11888] 0 11888 18279 10901 30 4 0 1000 syz-executor.3 [11900] 0 11900 18246 8753 26 4 0 1000 syz-executor.5 [11935] 0 11935 18246 9267 27 4 0 1000 syz-executor.1 [11953] 0 11953 18246 8753 26 4 0 1000 syz-executor.5 [11994] 0 11994 18213 8834 26 4 0 1000 syz-executor.0 [12000] 0 12000 18312 9063 27 4 0 1000 syz-executor.5 [12005] 0 12005 18246 9114 26 4 0 1000 syz-executor.4 [12061] 0 12061 18246 8996 26 4 0 1000 syz-executor.5 [12102] 0 12102 18213 8751 26 4 0 1000 syz-executor.5 [12152] 0 12152 18246 8911 26 4 0 1000 syz-executor.4 [12159] 0 12159 18213 8919 26 4 0 1000 syz-executor.0 [12198] 0 12198 18213 8749 26 4 0 1000 syz-executor.4 [12212] 0 12212 18246 8942 26 4 0 1000 syz-executor.5 [12267] 0 12267 18279 9484 27 4 0 1000 syz-executor.5 [12320] 0 12320 18246 8753 26 4 0 1000 syz-executor.5 [12378] 0 12378 18279 9173 26 4 0 1000 syz-executor.5 [12503] 0 12503 18246 11216 29 4 0 1000 syz-executor.3 [12641] 0 12641 18213 9115 26 4 0 1000 syz-executor.0 [12661] 0 12661 18246 9378 27 4 0 1000 syz-executor.1 [12818] 0 12818 18246 9867 27 4 0 1000 syz-executor.3 [12841] 0 12841 18279 9636 27 4 0 1000 syz-executor.1 [12881] 0 12881 18213 9145 26 4 0 1000 syz-executor.0 [13015] 0 13015 18213 9277 27 4 0 1000 syz-executor.4 [13087] 0 13087 18246 9115 24 3 0 1000 syz-executor.3 [13190] 0 13190 18279 10543 28 3 0 1000 syz-executor.3 [13268] 0 13268 18246 9293 25 3 0 1000 syz-executor.3 [13472] 0 13472 18246 8828 26 4 0 1000 syz-executor.4 [13595] 0 13595 18246 8915 26 4 0 1000 syz-executor.5 [13714] 0 13714 18246 9183 26 4 0 1000 syz-executor.5 [13829] 0 13829 18246 9133 25 4 0 1000 syz-executor.3 [13966] 0 13966 18246 8753 26 4 0 1000 syz-executor.5 [13993] 0 13993 18246 9737 27 4 0 1000 syz-executor.1 [14227] 0 14227 18279 9684 27 4 0 1000 syz-executor.3 [14322] 0 14322 18246 9748 26 4 0 1000 syz-executor.3 [14325] 0 14325 18246 8941 26 4 0 1000 syz-executor.5 [14494] 0 14494 18213 9258 26 4 0 1000 syz-executor.0 [14514] 0 14514 18246 9177 26 4 0 1000 syz-executor.4 [14565] 0 14565 18246 8960 26 4 0 1000 syz-executor.4 [14569] 0 14569 18213 9053 26 4 0 1000 syz-executor.0 [14586] 0 14586 18246 9364 27 4 0 1000 syz-executor.1 [14631] 0 14631 18213 8990 26 4 0 1000 syz-executor.0 [14668] 0 14668 18246 9674 27 4 0 1000 syz-executor.1 [14724] 0 14724 18246 9019 26 4 0 1000 syz-executor.4 [14802] 0 14802 18246 8824 26 4 0 1000 syz-executor.5 [14963] 0 14963 18279 8753 26 4 0 1000 syz-executor.4 [15004] 0 15004 18246 10856 29 4 0 1000 syz-executor.3 [15007] 0 15007 18246 8957 26 4 0 1000 syz-executor.5 [15010] 0 15010 18246 8787 26 4 0 1000 syz-executor.4 [15130] 0 15130 18246 9042 26 4 0 1000 syz-executor.1 [15152] 0 15152 18246 9091 25 4 0 1000 syz-executor.3 [15169] 0 15169 18246 11675 31 4 0 1000 syz-executor.1 [15326] 0 15326 18213 8903 26 4 0 1000 syz-executor.0 [15330] 0 15330 18246 8751 26 4 0 1000 syz-executor.4 [15355] 0 15355 18246 9216 25 4 0 1000 syz-executor.3 [15419] 0 15419 18246 9241 26 4 0 1000 syz-executor.1 [15470] 0 15470 18246 9819 28 4 0 1000 syz-executor.4 [15560] 0 15560 18279 8825 26 4 0 1000 syz-executor.4 [15634] 0 15634 18246 9822 28 4 0 1000 syz-executor.1 [15637] 0 15637 18279 9229 26 4 0 1000 syz-executor.3 [15662] 0 15662 18213 9107 26 4 0 1000 syz-executor.0 [15724] 0 15724 18279 8844 26 4 0 1000 syz-executor.4 [15730] 0 15730 18279 8928 26 4 0 1000 syz-executor.5 [15747] 0 15747 18213 9156 26 4 0 1000 syz-executor.0 [15777] 0 15777 18246 8962 26 4 0 1000 syz-executor.5 [15783] 0 15783 18246 9258 26 4 0 1000 syz-executor.4 [15825] 0 15825 18246 9169 24 3 0 1000 syz-executor.3 [15829] 0 15829 18246 8751 26 4 0 1000 syz-executor.4 [15883] 0 15883 18246 10027 28 4 0 1000 syz-executor.4 [15893] 0 15893 18246 9034 24 3 0 1000 syz-executor.3 [15927] 0 15927 18246 8767 26 4 0 1000 syz-executor.4 [15992] 0 15992 18246 9089 24 3 0 1000 syz-executor.3 [16021] 0 16021 18246 9004 26 4 0 1000 syz-executor.4 [16028] 0 16028 18246 9169 26 4 0 1000 syz-executor.5 [16211] 0 16211 18246 9057 26 4 0 1000 syz-executor.1 [16220] 0 16220 18213 9016 26 4 0 1000 syz-executor.0 [16221] 0 16221 18246 8875 26 4 0 1000 syz-executor.4 [16236] 0 16236 18246 9026 26 4 0 1000 syz-executor.5 [16439] 0 16439 18213 8749 26 4 0 1000 syz-executor.4 [16486] 0 16486 18312 8932 26 4 0 1000 syz-executor.4 [16515] 0 16515 18246 9506 25 3 0 1000 syz-executor.3 [16536] 0 16536 18246 8947 26 4 0 1000 syz-executor.1 [16583] 0 16583 18246 9223 26 4 0 1000 syz-executor.5 [16661] 0 16661 18246 9021 26 4 0 1000 syz-executor.1 [16736] 0 16736 18246 8845 26 4 0 1000 syz-executor.5 [16787] 0 16787 18213 9135 25 4 0 1000 syz-executor.3 [16867] 0 16867 18246 8992 26 4 0 1000 syz-executor.4 [16920] 0 16920 18246 9129 26 4 0 1000 syz-executor.4 [16971] 0 16971 18246 8959 25 4 0 1000 syz-executor.3 [17004] 0 17004 18246 9162 26 4 0 1000 syz-executor.1 [17042] 0 17042 18246 9087 26 4 0 1000 syz-executor.1 [17048] 0 17048 18213 9200 26 4 0 1000 syz-executor.0 [17097] 0 17097 18213 9123 26 4 0 1000 syz-executor.0 [17098] 0 17098 18246 9339 27 4 0 1000 syz-executor.1 [17181] 0 17181 18213 8749 26 4 0 1000 syz-executor.4 [17237] 0 17237 18246 9686 26 4 0 1000 syz-executor.3 [17397] 0 17397 18213 8801 26 4 0 1000 syz-executor.0 [17442] 0 17442 18213 8749 26 4 0 1000 syz-executor.4 [17622] 0 17622 18246 8977 26 4 0 1000 syz-executor.5 [17716] 0 17716 18246 9709 27 4 0 1000 syz-executor.5 [17773] 0 17773 18246 8861 26 4 0 1000 syz-executor.5 [17988] 0 17988 18312 8813 27 4 0 1000 syz-executor.5 [18003] 0 18003 18213 9240 26 4 0 1000 syz-executor.0 [18093] 0 18093 18213 8854 26 4 0 1000 syz-executor.0 [18100] 0 18100 18246 8768 26 4 0 1000 syz-executor.5 [18104] 0 18104 18279 9005 26 4 0 1000 syz-executor.4 [18128] 0 18128 18213 9047 26 4 0 1000 syz-executor.0 [18138] 0 18138 18213 8749 26 4 0 1000 syz-executor.4 [18163] 0 18163 18213 9223 26 4 0 1000 syz-executor.0 [18166] 0 18166 18246 9560 27 4 0 1000 syz-executor.1 [18173] 0 18173 18246 9097 26 4 0 1000 syz-executor.5 [18177] 0 18177 18279 9101 26 4 0 1000 syz-executor.4 [18311] 0 18311 18246 8931 26 4 0 1000 syz-executor.4 [18346] 0 18346 18246 8838 26 4 0 1000 syz-executor.4 [18349] 0 18349 18213 8751 26 4 0 1000 syz-executor.5 [18370] 0 18370 18246 8894 26 4 0 1000 syz-executor.1 [18437] 0 18437 18246 9187 25 4 0 1000 syz-executor.3 [18483] 0 18483 18213 8982 26 4 0 1000 syz-executor.0 [18556] 0 18556 18246 8908 26 4 0 1000 syz-executor.4 [18572] 0 18572 18246 9344 26 4 0 1000 syz-executor.3 [18654] 0 18654 18279 9014 26 4 0 1000 syz-executor.4 [18744] 0 18744 18246 9693 27 4 0 1000 syz-executor.5 [18778] 0 18778 18246 9119 25 4 0 1000 syz-executor.3 [18783] 0 18783 18246 8858 26 4 0 1000 syz-executor.4 [18830] 0 18830 18246 8971 26 4 0 1000 syz-executor.5 [18882] 0 18882 18246 8798 26 4 0 1000 syz-executor.4 [18888] 0 18888 18246 8949 26 4 0 1000 syz-executor.5 [18971] 0 18971 18246 8996 26 4 0 1000 syz-executor.4 [18973] 0 18973 18213 9070 26 4 0 1000 syz-executor.0 [19017] 0 19017 18246 9028 26 4 0 1000 syz-executor.5 [19164] 0 19164 18246 8955 26 4 0 1000 syz-executor.5 [19178] 0 19178 18213 8750 25 4 0 1000 syz-executor.3 [19183] 0 19183 18213 8986 26 4 0 1000 syz-executor.0 [19200] 0 19200 18246 9431 27 4 0 1000 syz-executor.1 [19361] 0 19361 18246 10989 30 4 0 1000 syz-executor.5 [19400] 0 19400 18246 8979 26 4 0 1000 syz-executor.0 [19415] 0 19415 18246 10029 28 4 0 1000 syz-executor.5 [19473] 0 19473 18246 9105 25 3 0 1000 syz-executor.1 [19528] 0 19528 18180 8748 25 4 0 1000 syz-executor.3 [19529] 0 19529 18213 9316 27 4 0 1000 syz-executor.0 [19559] 0 19559 18246 9050 25 3 0 1000 syz-executor.1 [19614] 0 19614 18213 8976 26 4 0 1000 syz-executor.0 [19664] 0 19664 18246 8984 25 3 0 1000 syz-executor.1 [19673] 0 19673 18246 8816 26 4 0 1000 syz-executor.4 [19730] 0 19730 18213 8893 25 4 0 1000 syz-executor.3 [19749] 0 19749 18246 9127 26 4 0 1000 syz-executor.1 [19765] 0 19765 18246 9582 27 4 0 1000 syz-executor.4 [19796] 0 19796 18213 8954 26 4 0 1000 syz-executor.0 [19804] 0 19804 18213 9001 25 4 0 1000 syz-executor.3 [19847] 0 19847 18246 9264 27 4 0 1000 syz-executor.5 [19885] 0 19885 18213 9177 26 4 0 1000 syz-executor.0 [19952] 0 19952 18246 8913 26 4 0 1000 syz-executor.4 [19956] 0 19956 18279 9009 26 4 0 1000 syz-executor.3 [20004] 0 20004 18246 9100 25 4 0 1000 syz-executor.3 [20045] 0 20045 18246 9086 26 4 0 1000 syz-executor.5 [20087] 0 20087 18213 9036 26 4 0 1000 syz-executor.0 [20149] 0 20149 18246 8804 25 4 0 1000 syz-executor.3 [20213] 0 20213 18246 9263 26 4 0 1000 syz-executor.3 [20255] 0 20255 18246 9369 26 4 0 1000 syz-executor.3 [20265] 0 20265 18246 8835 26 4 0 1000 syz-executor.4 [20320] 0 20320 18279 9267 27 4 0 1000 syz-executor.3 [20321] 0 20321 18279 8842 26 4 0 1000 syz-executor.5 [20379] 0 20379 18279 9096 26 4 0 1000 syz-executor.3 [20387] 0 20387 18213 9293 27 4 0 1000 syz-executor.0 [20432] 0 20432 18246 8872 25 4 0 1000 syz-executor.3 [20444] 0 20444 18246 10209 28 4 0 1000 syz-executor.1 [20489] 0 20489 18279 8983 26 4 0 1000 syz-executor.3 [20534] 0 20534 18246 8928 25 4 0 1000 syz-executor.3 [20543] 0 20543 18246 8903 26 4 0 1000 syz-executor.5 [20563] 0 20563 18213 9161 26 4 0 1000 syz-executor.0 [20577] 0 20577 18213 8751 26 4 0 1000 syz-executor.5 [20578] 0 20578 18279 9198 26 4 0 1000 syz-executor.3 [20584] 0 20584 18246 8822 26 4 0 1000 syz-executor.4 [20592] 0 20592 18213 9144 26 4 0 1000 syz-executor.0 [20632] 0 20632 18279 8905 26 4 0 1000 syz-executor.3 [20657] 0 20657 18246 8969 26 4 0 1000 syz-executor.5 [20673] 0 20673 18246 9527 26 4 0 1000 syz-executor.3 [20677] 0 20677 18213 9055 26 4 0 1000 syz-executor.0 [20725] 0 20725 18246 9154 25 4 0 1000 syz-executor.3 [20735] 0 20735 18279 8939 26 4 0 1000 syz-executor.4 [20772] 0 20772 18312 9373 27 4 0 1000 syz-executor.3 [20788] 0 20788 18312 8999 26 4 0 1000 syz-executor.4 [20820] 0 20820 18246 8826 26 4 0 1000 syz-executor.4 [20826] 0 20826 18246 10301 29 4 0 1000 syz-executor.5 [20832] 0 20832 18246 9106 25 4 0 1000 syz-executor.3 [20867] 0 20867 18279 8927 26 4 0 1000 syz-executor.4 [20873] 0 20873 18246 8962 25 4 0 1000 syz-executor.3 [20913] 0 20913 18279 9205 26 4 0 1000 syz-executor.3 [20935] 0 20935 18180 8743 25 4 0 1000 syz-executor.1 [21089] 0 21089 18246 9114 26 4 0 1000 syz-executor.4 [21102] 0 21102 18246 8866 26 4 0 1000 syz-executor.1 [21150] 0 21150 18246 9031 26 4 0 1000 syz-executor.5 [21195] 0 21195 18213 8903 26 4 0 1000 syz-executor.1 [21201] 0 21201 18279 8978 26 4 0 1000 syz-executor.3 [21206] 0 21206 18246 8942 26 4 0 1000 syz-executor.4 [21211] 0 21211 18279 9229 26 4 0 1000 syz-executor.5 [21290] 0 21290 18246 8934 26 4 0 1000 syz-executor.4 [21316] 0 21316 18180 8748 26 4 0 1000 syz-executor.1 [21353] 0 21353 18279 9677 27 4 0 1000 syz-executor.4 [21390] 0 21390 18246 9019 25 4 0 1000 syz-executor.3 [21398] 0 21398 18246 9053 26 4 0 1000 syz-executor.5 [21402] 0 21402 18246 9020 26 4 0 1000 syz-executor.1 [21443] 0 21443 18246 9128 25 3 0 1000 syz-executor.1 [21590] 0 21590 18246 9077 26 4 0 1000 syz-executor.5 [21622] 0 21622 18246 8751 26 4 0 1000 syz-executor.4 [21625] 0 21625 18246 9072 26 4 0 1000 syz-executor.5 [21635] 0 21635 18180 8750 26 4 0 1000 syz-executor.0 [21671] 0 21671 18246 9344 27 4 0 1000 syz-executor.1 [21701] 0 21701 18246 9257 26 4 0 1000 syz-executor.1 [21714] 0 21714 18246 8751 26 4 0 1000 syz-executor.4 [21734] 0 21734 18213 9261 27 4 0 1000 syz-executor.1 [21740] 0 21740 18180 8750 26 4 0 1000 syz-executor.0 [21761] 0 21761 18246 8909 26 4 0 1000 syz-executor.4 [21783] 0 21783 18279 8957 26 4 0 1000 syz-executor.5 [21817] 0 21817 18246 8826 26 4 0 1000 syz-executor.4 [21894] 0 21894 18246 9403 27 4 0 1000 syz-executor.1 [21902] 0 21902 18246 8885 26 4 0 1000 syz-executor.4 [21908] 0 21908 18180 8750 26 4 0 1000 syz-executor.0 [21943] 0 21943 18180 8750 26 4 0 1000 syz-executor.0