INFO: task jbd2/vda-8:2885 blocked for more than 430 seconds. Not tainted 6.12.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/vda-8 state:D stack:0 pid:2885 tgid:2885 ppid:2 flags:0x00000000 Call trace: [<819e0650>] (__schedule) from [<819e12ac>] (__schedule_loop kernel/sched/core.c:6833 [inline]) [<819e0650>] (__schedule) from [<819e12ac>] (schedule+0x2c/0xfc kernel/sched/core.c:6848) r10:82604310 r9:834ad400 r8:ec1a1da8 r7:00000002 r6:82604314 r5:00000000 r4:834ad400 [<819e1280>] (schedule) from [<819e13b4>] (io_schedule+0x38/0x48 kernel/sched/core.c:7681) r5:00000000 r4:834ad400 [<819e137c>] (io_schedule) from [<819e1d6c>] (bit_wait_io+0x14/0x5c kernel/sched/wait_bit.c:247) r5:819e1d58 r4:00000002 [<819e1d58>] (bit_wait_io) from [<819e1968>] (__wait_on_bit+0x7c/0x164 kernel/sched/wait_bit.c:49) r5:819e1d58 r4:ec1a1d90 [<819e18ec>] (__wait_on_bit) from [<819e1acc>] (out_of_line_wait_on_bit+0x7c/0xa0 kernel/sched/wait_bit.c:64) r10:83913024 r9:8324b0a8 r8:834ad400 r7:00000000 r6:8324b080 r5:831a87ac r4:61c88647 [<819e1a50>] (out_of_line_wait_on_bit) from [<80570fd8>] (wait_on_bit_io include/linux/wait_bit.h:105 [inline]) [<819e1a50>] (out_of_line_wait_on_bit) from [<80570fd8>] (__wait_on_buffer+0x30/0x34 fs/buffer.c:123) r4:831a8780 [<80570fa8>] (__wait_on_buffer) from [<806aaf70>] (wait_on_buffer include/linux/buffer_head.h:414 [inline]) [<80570fa8>] (__wait_on_buffer) from [<806aaf70>] (jbd2_journal_commit_transaction+0x1274/0x1e04 fs/jbd2/commit.c:810) [<806a9cfc>] (jbd2_journal_commit_transaction) from [<806b2940>] (kjournald2+0xbc/0x244 fs/jbd2/journal.c:201) r10:82604d40 r9:00000000 r8:83913058 r7:8391328c r6:834ad400 r5:83913024 r4:83913000 [<806b2884>] (kjournald2) from [<80270ae0>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819b60 r8:840e54c0 r7:83913000 r6:806b2884 r5:834ad400 r4:840e5440 [<802709dc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xec1a1fb0 to 0xec1a1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802709dc r4:840e5440 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.12.0-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<819be5f8>] (dump_backtrace) from [<819be6f4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:82043260 [<819be6dc>] (show_stack) from [<819dc738>] (__dump_stack lib/dump_stack.c:94 [inline]) [<819be6dc>] (show_stack) from [<819dc738>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<819dc6c8>] (dump_stack_lvl) from [<819dc75c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<819dc744>] (dump_stack) from [<819ab8b0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<819ab750>] (nmi_cpu_backtrace) from [<819ab9fc>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c610 r5:8261b0d0 r4:ffffffff [<819ab8cc>] (nmi_trigger_cpumask_backtrace) from [<80210428>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00045640 r8:828b7ca4 r7:8260c770 r6:00007f45 r5:8261b688 r4:8343351c [<80210410>] (arch_trigger_cpumask_backtrace) from [<80359a2c>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]) [<80210410>] (arch_trigger_cpumask_backtrace) from [<80359a2c>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<80210410>] (arch_trigger_cpumask_backtrace) from [<80359a2c>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379) [<80359594>] (watchdog) from [<80270ae0>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819e58 r8:82e9f440 r7:00000000 r6:80359594 r5:82ee1800 r4:82f459c0 [<802709dc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8e1fb0 to 0xdf8e1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802709dc r4:82f459c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 3094 Comm: syz-executor Not tainted 6.12.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at local_flush_tlb_kernel_page arch/arm/include/asm/tlbflush.h:501 [inline] PC is at kunmap_local_indexed+0xf4/0x224 mm/highmem.c:627 LR is at kunmap_local_indexed+0xd0/0x224 mm/highmem.c:626 pc : [<804911b8>] lr : [<80491194>] psr: 00000113 sp : df9a9db0 ip : df9a9da0 fp : df9a9dcc r10: df9a9fb0 r9 : def96990 r8 : 84247f00 r7 : def96990 r6 : 00000001 r5 : 83c5b000 r4 : ffefd000 r3 : 90f00000 r2 : 90f00000 r1 : 80219b58 r0 : deffd7e8 Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 82ecc600 DAC: fffffffd Call trace: [<804910c4>] (kunmap_local_indexed) from [<80492934>] (__kunmap_local include/linux/highmem-internal.h:94 [inline]) [<804910c4>] (kunmap_local_indexed) from [<80492934>] (wp_page_reuse+0xe0/0x1a0 mm/memory.c:3262) r7:def96990 r6:84247f00 r5:def96990 r4:df9a9eb8 [<80492854>] (wp_page_reuse) from [<80495b28>] (do_wp_page+0x170/0x1164 mm/memory.c:3731) r6:83c5b000 r5:00000000 r4:df9a9eb8 [<804959b8>] (do_wp_page) from [<80499418>] (handle_pte_fault mm/memory.c:5782 [inline]) [<804959b8>] (do_wp_page) from [<80499418>] (__handle_mm_fault mm/memory.c:5909 [inline]) [<804959b8>] (do_wp_page) from [<80499418>] (handle_mm_fault+0x9b8/0x135c mm/memory.c:6077) r10:df9a9fb0 r9:8424c300 r8:82ecc600 r7:00000040 r6:0025ecb4 r5:83c5b000 r4:00001255 [<80498a60>] (handle_mm_fault) from [<802142d0>] (do_page_fault+0x1c8/0x3d8 arch/arm/mm/fault.c:328) r10:00000002 r9:8424c300 r8:00000255 r7:83c5b000 r6:00000a0f r5:0025ecb4 r4:df9a9fb0 [<80214108>] (do_page_fault) from [<802146c8>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:596) r10:7ef927a0 r9:7ef92704 r8:80214108 r7:df9a9fb0 r6:0025ecb4 r5:00000a0f r4:8261d404 [<80214690>] (do_DataAbort) from [<80200ebc>] (__dabt_usr+0x5c/0x60 arch/arm/kernel/entry-armv.S:433) Exception stack(0xdf9a9fb0 to 0xdf9a9ff8) 9fa0: 021ba500 00000000 7ef926c8 ffffffff 9fc0: 0025efd4 00258000 0025ec48 7ef92790 00000004 7ef92704 7ef927a0 7ef926c8 9fe0: 00258000 7ef921c8 000fd4e8 000fd500 60000010 ffffffff r8:824b2044 r7:83c5b000 r6:ffffffff r5:60000010 r4:000fd500