INFO: task syz-executor.4:4550 blocked for more than 143 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24960 pid:4550 ppid:4462 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f4d0288c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f4d029abf80 RCX: 00007f4d0288c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000008000000
RBP: 00007f4d028e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff3876feef R14: 00007f4d036b5300 R15: 0000000000022000
INFO: task syz-executor.5:4587 blocked for more than 144 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24792 pid:4587 ppid:31831 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7fca0388c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fca039abf80 RCX: 00007fca0388c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000008000000
RBP: 00007fca038e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffcf7de259f R14: 00007fca04578300 R15: 0000000000022000
INFO: task syz-executor.3:4650 blocked for more than 145 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24696 pid:4650 ppid:2231 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f860268c191
RSP: 002b:0000000020000530 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f86027abf80 RCX: 00007f860268c189
RDX: 0000000020000580 RSI: 0000000020000530 RDI: 0000000000000000
RBP: 00007f86026e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde1649cbf R14: 00007f86033c7300 R15: 0000000000022000
INFO: task syz-executor.4:4664 blocked for more than 145 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24912 pid:4664 ppid:4462 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f4d0288c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f4d029abf80 RCX: 00007f4d0288c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000008000000
RBP: 00007f4d028e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff3876feef R14: 00007f4d036b5300 R15: 0000000000022000
INFO: task syz-executor.1:4680 blocked for more than 145 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24696 pid:4680 ppid:1176 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1578
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7156
RSP: 002b:0000000020000548 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f84c33ac050 RCX: 00007f84c328c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000000000000
RBP: 00007f84c32e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffea5f76b2f R14: 00007f84c25de300 R15: 0000000000022000
INFO: task syz-executor.4:4698 blocked for more than 146 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24960 pid:4698 ppid:4462 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f4d0288c191
RSP: 002b:0000000020000510 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f4d029ac120 RCX: 00007f4d0288c189
RDX: 0000000020000580 RSI: 0000000020000510 RDI: 0000000000000000
RBP: 00007f4d028e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff3876feef R14: 00007f4d03673300 R15: 0000000000022000
INFO: task syz-executor.4:4728 blocked for more than 147 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24960 pid:4728 ppid:4462 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f4d0288c191
RSP: 002b:0000000020000510 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f4d029ac050 RCX: 00007f4d0288c189
RDX: 0000000020000580 RSI: 0000000020000510 RDI: 0000000000000000
RBP: 00007f4d028e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff3876feef R14: 00007f4d03694300 R15: 0000000000022000
INFO: task syz-executor.3:4758 blocked for more than 147 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24960 pid:4758 ppid:2231 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f860268c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f86027abf80 RCX: 00007f860268c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000008000000
RBP: 00007f86026e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffde1649cbf R14: 00007f86033c7300 R15: 0000000000022000
INFO: task syz-executor.1:4801 blocked for more than 148 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24960 pid:4801 ppid:1176 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f84c328c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f84c33abf80 RCX: 00007f84c328c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000000000000
RBP: 00007f84c32e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffea5f76b2f R14: 00007f84c25ff300 R15: 0000000000022000
INFO: task syz-executor.3:4812 blocked for more than 148 seconds.
Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24960 pid:4812 ppid:2231 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16f/0xab0 fs/ext4/inode.c:2977
generic_perform_write+0x256/0x570 mm/filemap.c:3771
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x262/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:865 [inline]
dump_user_range+0x248/0x680 fs/coredump.c:916
elf_core_dump+0x26d9/0x3510 fs/binfmt_elf.c:2306
do_coredump+0x279d/0x3c90 fs/coredump.c:763
get_signal+0x1bf1/0x2440 kernel/signal.c:2844
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7f860268c191
RSP: 002b:0000000020000540 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f86027abf80 RCX: 00007f860268c189
RDX: 0000000020000580 RSI: 0000000020000540 RDI: 0000000008000000
RBP: 00007f86026e7b01 R08: 0000000020000600 R09: 0000000020000600
R10: 00000000200005c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffde1649cbf R14: 00007f86033c7300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c78fb30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c78f830 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c790680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4974:
#0: ffff88802c8ca098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015952f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:8/5504:
3 locks held by kworker/u4:0/11147:
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888140b04138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90003bbfda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff8880188f0b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
3 locks held by syz-executor.3/2231:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x183/0x640 fs/namei.c:4298
#1: ffff88804dddde48 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff88804dddde48 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x270/0x640 fs/namei.c:4302
#2: ffff88804df12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#2: ffff88804df12218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4240
3 locks held by syz-executor.4/4550:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88808071a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88808071a218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.5/4587:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804dc78e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804dc78e08 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.3/4650:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888032e32c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888032e32c20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.4/4664:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88803e645440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88803e645440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.1/4680:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804dddc030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804dddc030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.4/4698:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88804ddd8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88804ddd8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.4/4728:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff88808325c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88808325c030 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.3/4758:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888047a90400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888047a90400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.1/4801:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff888083605e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888083605e48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
3 locks held by syz-executor.3/4812:
#0: ffff8880188ee460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1bf1/0x2440 kernel/signal.c:2844
#1: ffff8880478c5440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880478c5440 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:279
#2: ffff8880188ee0e0 (&type->s_umount_key#31){++++}-{3:3}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2665
1 lock held by syz-executor.3/7991:
1 lock held by syz-executor.3/8146:
#0: ffff8880188f0b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
4 locks held by syz-executor.2/8545:
5 locks held by syz-executor.4/8641:
4 locks held by syz-executor.2/8859:
2 locks held by syz-executor.2/8892:
4 locks held by syz-executor.2/9709:
4 locks held by syz-executor.1/9735:
4 locks held by syz-executor.2/9745:
2 locks held by syz-executor.2/9775:
6 locks held by syz-executor.4/9792:
3 locks held by syz-executor.2/9822:
2 locks held by syz-executor.2/9861:
4 locks held by syz-executor.2/9932:
1 lock held by syz-executor.0/9965:
#0: ffff8880188f0b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
3 locks held by syz-executor.1/9968:
4 locks held by syz-executor.2/9992:
4 locks held by syz-executor.1/10008:
2 locks held by syz-executor.2/10017:
2 locks held by syz-executor.1/10053:
4 locks held by syz-executor.4/10099:
1 lock held by syz-executor.3/10106:
#0: ffff8880188f0b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: do_writepages+0x1af/0x690 mm/page-writeback.c:2469
3 locks held by syz-executor.3/10117:
4 locks held by syz-executor.1/10135:
3 locks held by syz-executor.2/10154:
4 locks held by syz-executor.1/10159:
4 locks held by syz-executor.1/10294:
4 locks held by syz-executor.1/10307:
4 locks held by syz-executor.3/10344:
2 locks held by syz-executor.3/10488:
4 locks held by syz-executor.1/10496:
3 locks held by syz-executor.5/10511:
1 lock held by syz-executor.3/10548:
3 locks held by syz-executor.1/10592:
3 locks held by syz-executor.1/10756:
1 lock held by syz-executor.3/10758:
4 locks held by syz-executor.5/10764:
4 locks held by syz-executor.2/10770:
4 locks held by syz-executor.5/10780:
5 locks held by syz-executor.1/10782:
4 locks held by syz-executor.3/10784:
2 locks held by syz-executor.4/10788:
3 locks held by syz-executor.2/10795:
4 locks held by syz-executor.3/10807:
3 locks held by syz-executor.5/10809:
2 locks held by syz-executor.4/10819:
5 locks held by syz-executor.3/10833:
2 locks held by syz-executor.2/10834:
4 locks held by syz-executor.5/10846:
4 locks held by syz-executor.4/10850:
2 locks held by syz-executor.2/10866: