INFO: task syz-executor.5:3675 blocked for more than 143 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:22688 pid: 3675 ppid:  3571 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268
 ext4_file_write_iter+0x87c/0x1990
 __kernel_write+0x5b1/0xa60 fs/read_write.c:539
 __dump_emit+0x264/0x3a0 fs/coredump.c:875
 dump_user_range+0x91/0x320 fs/coredump.c:949
 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285
 do_coredump+0x1852/0x31e0 fs/coredump.c:826
 get_signal+0xc06/0x14e0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0xe408a2365d
RSP: 002b:00000000200000d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fae390b7f80 RCX: 00007fae38f98389
RDX: 0000000020000100 RSI: 00000000200000d0 RDI: 0000000085000200
RBP: 00007fae38fe3493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fae38b0c1a0 R14: 00007fae390b7f80 R15: 0000000000000000
 </TASK>
INFO: task syz-executor.1:3713 blocked for more than 144 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:21816 pid: 3713 ppid:  3561 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268
 ext4_file_write_iter+0x87c/0x1990
 __kernel_write+0x5b1/0xa60 fs/read_write.c:539
 __dump_emit+0x264/0x3a0 fs/coredump.c:875
 dump_user_range+0x91/0x320 fs/coredump.c:949
 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285
 do_coredump+0x1852/0x31e0 fs/coredump.c:826
 get_signal+0xc06/0x14e0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0xe408a2365d
RSP: 002b:00000000200000d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd924a7cf80 RCX: 00007fd92495d389
RDX: 0000000020000100 RSI: 00000000200000d0 RDI: 0000000085000200
RBP: 00007fd9249a8493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd9244d11a0 R14: 00007fd924a7cf80 R15: 0000000000000000
 </TASK>
INFO: task syz-executor.4:3732 blocked for more than 146 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:22872 pid: 3732 ppid:  3556 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268
 ext4_file_write_iter+0x87c/0x1990
 __kernel_write+0x5b1/0xa60 fs/read_write.c:539
 __dump_emit+0x264/0x3a0 fs/coredump.c:875
 dump_user_range+0x91/0x320 fs/coredump.c:949
 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285
 do_coredump+0x1852/0x31e0 fs/coredump.c:826
 get_signal+0xc06/0x14e0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0xe408a2365d
RSP: 002b:00000000200000d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd93bd50f80 RCX: 00007fd93bc31389
RDX: 0000000020000100 RSI: 00000000200000d0 RDI: 0000000085000200
RBP: 00007fd93bc7c493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd93b7a51a0 R14: 00007fd93bd50f80 R15: 0000000000000000
 </TASK>
INFO: task syz-executor.4:3783 blocked for more than 148 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:22872 pid: 3783 ppid:  3556 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268
 ext4_file_write_iter+0x87c/0x1990
 __kernel_write+0x5b1/0xa60 fs/read_write.c:539
 __dump_emit+0x264/0x3a0 fs/coredump.c:875
 dump_user_range+0x91/0x320 fs/coredump.c:949
 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285
 do_coredump+0x1852/0x31e0 fs/coredump.c:826
 get_signal+0xc06/0x14e0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0xe408a2365d
RSP: 002b:00000000200000d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd93bd50f80 RCX: 00007fd93bc31389
RDX: 0000000020000100 RSI: 00000000200000d0 RDI: 0000000085000200
RBP: 00007fd93bc7c493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd93b7a51a0 R14: 00007fd93bd50f80 R15: 0000000000000000
 </TASK>
INFO: task syz-executor.0:3808 blocked for more than 150 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:23352 pid: 3808 ppid:  3570 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268
 ext4_file_write_iter+0x87c/0x1990
 __kernel_write+0x5b1/0xa60 fs/read_write.c:539
 __dump_emit+0x264/0x3a0 fs/coredump.c:875
 dump_user_range+0x91/0x320 fs/coredump.c:949
 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285
 do_coredump+0x1852/0x31e0 fs/coredump.c:826
 get_signal+0xc06/0x14e0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0xe408a2365d
RSP: 002b:00000000200000d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f1952847f80 RCX: 00007f1952728389
RDX: 0000000020000100 RSI: 00000000200000d0 RDI: 0000000085000200
RBP: 00007f1952773493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f195229c1a0 R14: 00007f1952847f80 R15: 0000000000000000
 </TASK>
INFO: task syz-executor.4:3812 blocked for more than 152 seconds.
      Not tainted 5.15.119-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:21696 pid: 3812 ppid:  3556 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2662
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2710
 ext4_nonda_switch fs/ext4/inode.c:2943 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2970
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268