INFO: task syz-executor.0:6127 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc1-syzkaller-00125-g7475e51b8796 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:23920 pid:6127  tgid:6126  ppid:5419   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xedb/0x5af0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6778
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
 rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read_nested+0x124/0x330 kernel/locking/rwsem.c:1652
 jfs_get_block+0x407/0xb20 fs/jfs/inode.c:215
 do_mpage_readpage+0x6f8/0x1a90 fs/mpage.c:233
 mpage_readahead+0x34d/0x590 fs/mpage.c:381
 read_pages+0x1d1/0xdc0 mm/readahead.c:160
 page_cache_ra_unbounded+0x457/0x5f0 mm/readahead.c:269
 do_page_cache_ra mm/readahead.c:299 [inline]
 page_cache_ra_order+0x72b/0xa80 mm/readahead.c:546
 ondemand_readahead+0x493/0x1130 mm/readahead.c:668
 page_cache_async_ra mm/readahead.c:717 [inline]
 page_cache_async_ra+0x123/0x150 mm/readahead.c:699
 filemap_readahead mm/filemap.c:2472 [inline]
 filemap_get_pages+0x35a/0x1830 mm/filemap.c:2513
 filemap_splice_read+0x3d0/0x9f0 mm/filemap.c:2860
 vfs_splice_read fs/splice.c:993 [inline]
 vfs_splice_read+0x2c8/0x3b0 fs/splice.c:962
 splice_direct_to_actor+0x2a5/0xa30 fs/splice.c:1069
 do_splice_direct+0x1af/0x280 fs/splice.c:1194
 do_sendfile+0xb3e/0x1310 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f8d3387cae9
RSP: 002b:00007f8d345f10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f8d3399bf80 RCX: 00007f8d3387cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f8d338c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8d3399bf80 R15: 00007ffeda95baa8
 </TASK>
INFO: task syz-executor.0:6128 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc1-syzkaller-00125-g7475e51b8796 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:24896 pid:6128  tgid:6126  ppid:5419   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xedb/0x5af0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6778
 io_schedule+0xbe/0x130 kernel/sched/core.c:8998
 TXN_SLEEP_DROP_LOCK fs/jfs/jfs_txnmgr.c:125 [inline]
 txBeginAnon+0x30c/0x3e0 fs/jfs/jfs_txnmgr.c:468
 extAlloc+0xe3/0xf00 fs/jfs/jfs_extent.c:78
 jfs_get_block+0x428/0xb20 fs/jfs/inode.c:248
 __block_write_begin_int+0x3c0/0x1560 fs/buffer.c:2119
 __block_write_begin fs/buffer.c:2168 [inline]
 block_write_begin+0xb1/0x490 fs/buffer.c:2227
 jfs_write_begin+0x31/0xd0 fs/jfs/inode.c:299
 generic_perform_write+0x278/0x600 mm/filemap.c:3918
 __generic_file_write_iter+0x1d0/0x240 mm/filemap.c:4009
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4039
 call_write_iter include/linux/fs.h:2020 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x7f0 fs/read_write.c:860
 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901
 iter_file_splice_write+0x698/0xc00 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0x118/0x180 fs/splice.c:1142
 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1088
 do_splice_direct+0x1af/0x280 fs/splice.c:1194
 do_sendfile+0xb3e/0x1310 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f8d3387cae9
RSP: 002b:00007f8d345d00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f8d3399c050 RCX: 00007f8d3387cae9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000007
RBP: 00007f8d338c847a R08: 0000000000000000 R09: 0000000000000000
R10: 000000010000ed01 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8d3399c050 R15: 00007ffeda95baa8
 </TASK>

Showing all locks held in the system:
1 lock held by ksoftirqd/1/22:
 #0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
1 lock held by khungtaskd/29:
 #0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
 #0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by getty/4816:
 #0: ffff88814bc160a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
3 locks held by syz-executor.0/6127:
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 #1: ffff8880624bc7e0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
 #1: ffff8880624bc7e0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x13a/0x5f0 mm/readahead.c:225
 #2: ffff8880624bc1f8 (&jfs_ip->rdwrlock#2){++++}-{3:3}, at: jfs_get_block+0x407/0xb20 fs/jfs/inode.c:215
3 locks held by syz-executor.0/6128:
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 #0: ffff88806e704418 (sb_writers#13){.+.+}-{0:0}, at: __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 #1: ffff8880624bc640 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
 #1: ffff8880624bc640 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: generic_file_write_iter+0x92/0x350 mm/filemap.c:4036
 #2: ffff8880624bc1f8 (&jfs_ip->rdwrlock#2){++++}-{3:3}, at: jfs_get_block+0x163/0xb20 fs/jfs/inode.c:213
2 locks held by syz-executor.0/6502:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc1-syzkaller-00125-g7475e51b8796 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xf87/0x1210 kernel/hung_task.c:379
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6502 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller-00125-g7475e51b8796 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x14/0x60 kernel/kcov.c:207
Code: 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 48 8b 14 25 c0 bc 03 00 65 8b 05 c4 2b 7c 7e <a9> 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 fc 15 00 00
RSP: 0018:ffffc900048bf620 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffff888021a21dc0 RSI: 0000000000000000 RDI: 0000000000100cca
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1e326ea
R10: ffffffff8f193757 R11: 0000000000000003 R12: 0000000000100cca
R13: ffffc900048bf7d4 R14: ffffc900048bf7c0 R15: 0000000000000008
FS:  00007fde1ed866c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fde15ffe000 CR3: 000000007e517000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __should_fail_alloc_page+0x12/0x130 mm/fail_page_alloc.c:28
 prepare_alloc_pages.constprop.0+0x16f/0x550 mm/page_alloc.c:4341
 __alloc_pages+0x193/0x2420 mm/page_alloc.c:4557
 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
 shmem_alloc_folio+0x10d/0x140 mm/shmem.c:1613
 shmem_alloc_and_add_folio+0x147/0x7b0 mm/shmem.c:1653
 shmem_get_folio_gfp+0x623/0x1360 mm/shmem.c:2037
 shmem_get_folio mm/shmem.c:2119 [inline]
 shmem_write_begin+0x15a/0x360 mm/shmem.c:2702
 generic_perform_write+0x278/0x600 mm/filemap.c:3918
 shmem_file_write_iter+0x110/0x140 mm/shmem.c:2878
 call_write_iter include/linux/fs.h:2020 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x64f/0xdf0 fs/read_write.c:584
 ksys_write+0x12f/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fde1e07b82f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 b9 80 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 0c 81 02 00 48
RSP: 002b:00007fde1ed85e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007fde1e07b82f
RDX: 0000000001000000 RSI: 00007fde14fff000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005e8f
R10: 0000000000000774 R11: 0000000000000293 R12: 0000000000000003
R13: 00007fde1ed85f3c R14: 00007fde1ed85f40 R15: 00007fde14fff000
 </TASK>