INFO: task syz.3.124:6877 blocked for more than 143 seconds.
Tainted: G W 6.17.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.124 state:D stack:17448 pid:6877 tgid:6876 ppid:5837 task_flags:0x440140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
schedule+0x165/0x360 kernel/sched/core.c:7058
__bch2_two_state_lock+0x1ea/0x370 fs/bcachefs/two_state_shared_lock.c:7
bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
bch2_readahead+0x94f/0x1100 fs/bcachefs/fs-io-buffered.c:296
read_pages+0x177/0x580 mm/readahead.c:160
page_cache_ra_unbounded+0x63b/0x740 mm/readahead.c:297
filemap_readahead mm/filemap.c:2572 [inline]
filemap_get_pages+0xaed/0x1df0 mm/filemap.c:2617
filemap_splice_read+0x587/0xc60 mm/filemap.c:2991
do_splice_read fs/splice.c:979 [inline]
splice_direct_to_actor+0x4b1/0xcd0 fs/splice.c:1083
do_splice_direct_actor fs/splice.c:1201 [inline]
do_splice_direct+0x187/0x270 fs/splice.c:1227
vfs_copy_file_range+0xad7/0x1330 fs/read_write.c:1627
__do_sys_copy_file_range fs/read_write.c:1677 [inline]
__se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1644
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3114bdebe9
RSP: 002b:00007f3112e46038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f3114e05fa0 RCX: 00007f3114bdebe9
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007f3114c61e19 R08: 0000000000400000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3114e06038 R14: 00007f3114e05fa0 R15: 00007ffc9ca40e88
INFO: task syz.3.124:6929 blocked for more than 143 seconds.
Tainted: G W 6.17.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.124 state:D stack:26768 pid:6929 tgid:6876 ppid:5837 task_flags:0x400140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
schedule+0x165/0x360 kernel/sched/core.c:7058
io_schedule+0x81/0xe0 kernel/sched/core.c:7903
folio_wait_bit_common+0x6b5/0xb90 mm/filemap.c:1317
folio_lock include/linux/pagemap.h:1133 [inline]
bch2_mark_pagecache_unallocated+0x3a2/0x930 fs/bcachefs/fs-io-pagecache.c:275
bch2_remap_file_range+0x931/0xd20 fs/bcachefs/fs-io.c:933
vfs_copy_file_range+0xd77/0x1330 fs/read_write.c:1591
__do_sys_copy_file_range fs/read_write.c:1677 [inline]
__se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1644
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3114bdebe9
RSP: 002b:00007f3112e25038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f3114e06090 RCX: 00007f3114bdebe9
RDX: 000000000000000a RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007f3114c61e19 R08: 0000000000400000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3114e06128 R14: 00007f3114e06090 R15: 00007ffc9ca40e88
INFO: task syz.3.124:6930 blocked for more than 143 seconds.
Tainted: G W 6.17.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.124 state:D stack:25896 pid:6930 tgid:6876 ppid:5837 task_flags:0x400040 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
rt_mutex_schedule+0x77/0xf0 kernel/sched/core.c:7339
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1647 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1721 [inline]
__rt_mutex_slowlock_locked+0x1e04/0x25e0 kernel/locking/rtmutex.c:1760
rt_mutex_slowlock+0xb5/0x160 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
rwbase_write_lock+0x14f/0x750 kernel/locking/rwbase_rt.c:244
inode_lock include/linux/fs.h:869 [inline]
bch2_direct_write+0x19b/0x2cf0 fs/bcachefs/fs-io-direct.c:613
bch2_write_iter+0x192/0x2ba0 fs/bcachefs/fs-io-buffered.c:1064
iter_file_splice_write+0x9cb/0x10b0 fs/splice.c:738
do_splice_from fs/splice.c:935 [inline]
direct_splice_actor+0x104/0x160 fs/splice.c:1158
splice_direct_to_actor+0x5b3/0xcd0 fs/splice.c:1102
do_splice_direct_actor fs/splice.c:1201 [inline]
do_splice_direct+0x187/0x270 fs/splice.c:1227
do_sendfile+0x4ec/0x7f0 fs/read_write.c:1370
__do_sys_sendfile64 fs/read_write.c:1431 [inline]
__se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3114bdebe9
RSP: 002b:00007f3112e04038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f3114e06180 RCX: 00007f3114bdebe9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f3114c61e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3114e06218 R14: 00007f3114e06180 R15: 00007ffc9ca40e88
INFO: task syz.3.124:6931 blocked for more than 143 seconds.
Tainted: G W 6.17.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.124 state:D stack:28616 pid:6931 tgid:6876 ppid:5837 task_flags:0x400040 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
rt_mutex_schedule+0x77/0xf0 kernel/sched/core.c:7339
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1647 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1721 [inline]
__rt_mutex_slowlock_locked+0x1e04/0x25e0 kernel/locking/rtmutex.c:1760
rt_mutex_slowlock+0xb5/0x160 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
rwbase_write_lock+0x14f/0x750 kernel/locking/rwbase_rt.c:244
inode_lock include/linux/fs.h:869 [inline]
bch2_fallocate_dispatch+0x111/0x410 fs/bcachefs/fs-io.c:827
vfs_fallocate+0x672/0x7f0 fs/open.c:342
ksys_fallocate fs/open.c:366 [inline]
__do_sys_fallocate fs/open.c:371 [inline]
__se_sys_fallocate fs/open.c:369 [inline]
__x64_sys_fallocate+0xc0/0x110 fs/open.c:369
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3114bdebe9
RSP: 002b:00007f31129e1038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f3114e06270 RCX: 00007f3114bdebe9
RDX: 0000000000000009 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007f3114c61e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3114e06308 R14: 00007f3114e06270 R15: 00007ffc9ca40e88
INFO: task syz.3.124:6932 blocked for more than 143 seconds.
Tainted: G W 6.17.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.124 state:D stack:27048 pid:6932 tgid:6876 ppid:5837 task_flags:0x400140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
__schedule_loop kernel/sched/core.c:7043 [inline]
rt_mutex_schedule+0x77/0xf0 kernel/sched/core.c:7339
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1647 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1721 [inline]
__rt_mutex_slowlock_locked+0x1e04/0x25e0 kernel/locking/rtmutex.c:1760
rt_mutex_slowlock+0xb5/0x160 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
rwbase_write_lock+0x14f/0x750 kernel/locking/rwbase_rt.c:244
inode_lock include/linux/fs.h:869 [inline]
process_measurement+0x3de/0x1a40 security/integrity/ima/ima_main.c:280
ima_file_check+0xd7/0x120 security/integrity/ima/ima_main.c:633
security_file_post_open+0xbb/0x290 security/security.c:3160
do_open fs/namei.c:3889 [inline]
path_openat+0x2f32/0x3840 fs/namei.c:4046
do_filp_open+0x1fa/0x410 fs/namei.c:4073
do_sys_openat2+0x121/0x1c0 fs/open.c:1435
do_sys_open fs/open.c:1450 [inline]
__do_sys_openat fs/open.c:1466 [inline]
__se_sys_openat fs/open.c:1461 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1461
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3114bdebe9
RSP: 002b:00007f31125be038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3114e06360 RCX: 00007f3114bdebe9
RDX: 0000000000000441 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f3114c61e19 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000014a R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3114e063f8 R14: 00007f3114e06360 R15: 00007ffc9ca40e88
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Tainted: G W 6.17.0-rc2-syzkaller #0 PREEMPT_{RT,(full)}
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
watchdog+0xf93/0xfe0 kernel/hung_task.c:491
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 17 Comm: pr/legacy Tainted: G W 6.17.0-rc2-syzkaller #0 PREEMPT_{RT,(full)}
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:arch_touch_nmi_watchdog+0x11/0x20 kernel/watchdog.c:146
Code: 5d e9 03 35 3b 09 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa e8 47 d0 ff ff 65 c6 05 97 b0 37 10 01 da 34 3b 09 cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001678b0 EFLAGS: 00000293
RAX: ffffffff81be8af9 RBX: dffffc0000000000 RCX: ffff88801c2b0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff993a4810 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8af4ee30 R12: 1ffffffff3274902
R13: 00000000ffffffff R14: dffffc0000000000 R15: 00000000000007f0
FS: 0000000000000000(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd08dcd5000 CR3: 0000000056846000 CR4: 00000000003526f0
Call Trace:
touch_nmi_watchdog include/linux/nmi.h:147 [inline]
wait_for_lsr+0x16b/0x2f0 drivers/tty/serial/8250/8250_port.c:1991
fifo_wait_for_lsr drivers/tty/serial/8250/8250_port.c:3288 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3311 [inline]
serial8250_console_write+0x11bd/0x1b40 drivers/tty/serial/8250/8250_port.c:3396
console_emit_next_record kernel/printk/printk.c:3118 [inline]
console_flush_all+0x695/0xcd0 kernel/printk/printk.c:3226
__console_flush_and_unlock+0xa4/0x240 kernel/printk/printk.c:3285
legacy_kthread_func+0x13b/0x1a0 kernel/printk/printk.c:3638
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245