INFO: task syz-executor.1:27359 blocked for more than 143 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:21272 pid:27359 ppid: 20493 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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:867
 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+0x5/0x40 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: 0033:0x0
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f406b8acf80 RCX: 00007f406b77eda9
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000800000
RBP: 00007f406b7cb47a R08: 00000000200000c0 R09: 00000000200000c0
R10: 0000000020000080 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f406b8acf80 R15: 00007fff19085378
 </TASK>
INFO: task syz-executor.2:27372 blocked for more than 145 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:20760 pid:27372 ppid: 21809 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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:867
 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+0x5/0x40 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: 0033:0x0
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8c744f5f80 RCX: 00007f8c743c7da9
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000800000
RBP: 00007f8c7441447a R08: 00000000200000c0 R09: 00000000200000c0
R10: 0000000020000080 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c744f5f80 R15: 00007ffc30d820a8
 </TASK>
INFO: task syz-executor.1:27386 blocked for more than 146 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:21344 pid:27386 ppid: 20493 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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:867
 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+0x5/0x40 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: 0033:0x0
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f406b8acf80 RCX: 00007f406b77eda9
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000800000
RBP: 00007f406b7cb47a R08: 00000000200000c0 R09: 00000000200000c0
R10: 0000000020000080 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f406b8acf80 R15: 00007fff19085378
 </TASK>
INFO: task syz-executor.2:27458 blocked for more than 148 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:21272 pid:27458 ppid: 21809 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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:867
 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+0x5/0x40 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: 0033:0x0
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8c744f5f80 RCX: 00007f8c743c7da9
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000800000
RBP: 00007f8c7441447a R08: 00000000200000c0 R09: 00000000200000c0
R10: 0000000020000080 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c744f5f80 R15: 00007ffc30d820a8
 </TASK>
INFO: task syz-executor.1:27472 blocked for more than 150 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:21080 pid:27472 ppid: 20493 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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:867
 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+0x5/0x40 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: 0033:0x0
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f406b8acf80 RCX: 00007f406b77eda9
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000800000
RBP: 00007f406b7cb47a R08: 00000000200000c0 R09: 00000000200000c0
R10: 0000000020000080 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f406b8acf80 R15: 00007fff19085378
 </TASK>
INFO: task syz-executor.2:27515 blocked for more than 152 seconds.
      Not tainted 5.15.152-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:21344 pid:27515 ppid: 21809 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 wb_wait_for_completion+0x164/0x290 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x2ce/0x370 fs/fs-writeback.c:2684
 try_to_writeback_inodes_sb+0x94/0xb0 fs/fs-writeback.c:2732
 ext4_nonda_switch fs/ext4/inode.c:2933 [inline]
 ext4_da_write_begin+0x228/0xb60 fs/ext4/inode.c:2960
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 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