INFO: task syz-executor.2:11604 can't die for more than 143 seconds. task:syz-executor.2 state:D stack:28536 pid:11604 ppid: 6591 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4711 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5966 schedule+0xd3/0x270 kernel/sched/core.c:6045 io_schedule+0xba/0x130 kernel/sched/core.c:8035 folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1365 folio_wait_bit mm/filemap.c:1425 [inline] folio_wait_locked include/linux/pagemap.h:802 [inline] folio_wait_locked include/linux/pagemap.h:799 [inline] wait_on_page_locked include/linux/pagemap.h:814 [inline] do_read_cache_page+0x799/0x11a0 mm/filemap.c:3511 read_mapping_page include/linux/pagemap.h:602 [inline] read_part_sector+0xfa/0x5c0 block/partitions/core.c:727 adfspart_check_ICS+0x9d/0xc90 block/partitions/acorn.c:360 check_partition block/partitions/core.c:147 [inline] blk_add_partitions block/partitions/core.c:612 [inline] bdev_disk_changed+0x7bc/0x1140 block/partitions/core.c:698 blkdev_get_whole+0x206/0x2a0 fs/block_dev.c:1086 blkdev_get_by_dev.part.0+0x354/0xb60 fs/block_dev.c:1228 blkdev_get_by_dev fs/block_dev.c:1317 [inline] blkdev_open+0x295/0x300 fs/block_dev.c:1323 do_dentry_open+0x4c8/0x11d0 fs/open.c:826 do_open fs/namei.c:3428 [inline] path_openat+0x1c9a/0x2880 fs/namei.c:3561 do_filp_open+0x1aa/0x400 fs/namei.c:3588 do_sys_openat2+0x16d/0x4d0 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_openat fs/open.c:1236 [inline] __se_sys_openat fs/open.c:1231 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1231 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4196d4 RSP: 002b:00007f00bba9dcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00000000004196d4 RDX: 0000000000000000 RSI: 00007f00bba9dd60 RDI: 00000000ffffff9c RBP: 00007f00bba9dd60 R08: 0000000000000000 R09: 002364626e2f7665 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffc52c9acef R14: 00007f00bba9e300 R15: 0000000000022000 INFO: task syz-executor.2:11604 blocked for more than 143 seconds. Not tainted 5.14.0-rc5-next-20210816-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28536 pid:11604 ppid: 6591 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4711 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5966 schedule+0xd3/0x270 kernel/sched/core.c:6045 io_schedule+0xba/0x130 kernel/sched/core.c:8035 folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1365 folio_wait_bit mm/filemap.c:1425 [inline] folio_wait_locked include/linux/pagemap.h:802 [inline] folio_wait_locked include/linux/pagemap.h:799 [inline] wait_on_page_locked include/linux/pagemap.h:814 [inline] do_read_cache_page+0x799/0x11a0 mm/filemap.c:3511 read_mapping_page include/linux/pagemap.h:602 [inline] read_part_sector+0xfa/0x5c0 block/partitions/core.c:727 adfspart_check_ICS+0x9d/0xc90 block/partitions/acorn.c:360 check_partition block/partitions/core.c:147 [inline] blk_add_partitions block/partitions/core.c:612 [inline] bdev_disk_changed+0x7bc/0x1140 block/partitions/core.c:698 blkdev_get_whole+0x206/0x2a0 fs/block_dev.c:1086 blkdev_get_by_dev.part.0+0x354/0xb60 fs/block_dev.c:1228 blkdev_get_by_dev fs/block_dev.c:1317 [inline] blkdev_open+0x295/0x300 fs/block_dev.c:1323 do_dentry_open+0x4c8/0x11d0 fs/open.c:826 do_open fs/namei.c:3428 [inline] path_openat+0x1c9a/0x2880 fs/namei.c:3561 do_filp_open+0x1aa/0x400 fs/namei.c:3588 do_sys_openat2+0x16d/0x4d0 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_openat fs/open.c:1236 [inline] __se_sys_openat fs/open.c:1231 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1231 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4196d4 RSP: 002b:00007f00bba9dcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00000000004196d4 RDX: 0000000000000000 RSI: 00007f00bba9dd60 RDI: 00000000ffffff9c RBP: 00007f00bba9dd60 R08: 0000000000000000 R09: 002364626e2f7665 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffc52c9acef R14: 00007f00bba9e300 R15: 0000000000022000 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.14.0-rc5-next-20210816-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:339 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline] NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:553