INFO: task syz.8.215:7352 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.215 state:D stack:24128 pid:7352 tgid:7352 ppid:6904 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
__bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7
bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
bch2_page_mkwrite+0x41f/0x1020 fs/bcachefs/fs-io-pagecache.c:623
do_page_mkwrite+0x15c/0x350 mm/memory.c:3176
wp_page_shared mm/memory.c:3577 [inline]
do_wp_page+0x23cd/0x49b0 mm/memory.c:3727
handle_pte_fault+0xfa5/0x5ed0 mm/memory.c:5817
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f8fde94da98
RSP: 002b:00007fff7b1be918 EFLAGS: 00010202
RAX: 0000000020000200 RBX: 0000000000000004 RCX: 0064656461657268
RDX: 0000000000000009 RSI: 6465646165726874 RDI: 0000000020000200
RBP: 00007f8fdeb77ba0 R08: 00007f8fde800000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 0000000000026403
R13: 00007fff7b1bea20 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.8.215:7353 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.215 state:D stack:14368 pid:7353 tgid:7352 ppid:6904 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
__bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7
bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
bch2_readahead+0x9a2/0x11e0 fs/bcachefs/fs-io-buffered.c:258
read_pages+0x176/0x750 mm/readahead.c:160
page_cache_ra_order+0x7e3/0xb60 mm/readahead.c:512
filemap_readahead mm/filemap.c:2518 [inline]
filemap_get_pages+0x95f/0x2080 mm/filemap.c:2563
filemap_splice_read+0x68e/0xef0 mm/filemap.c:2922
do_splice_read fs/splice.c:985 [inline]
splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089
do_splice_direct_actor fs/splice.c:1207 [inline]
do_splice_direct+0x289/0x3e0 fs/splice.c:1233
do_sendfile+0x564/0x8a0 fs/read_write.c:1363
__do_sys_sendfile64 fs/read_write.c:1424 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8fde985d29
RSP: 002b:00007f8fdf861038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f8fdeb75fa0 RCX: 00007f8fde985d29
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000009
RBP: 00007f8fdea01a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8fdeb75fa0 R15: 00007fff7b1be7b8
INFO: task syz.8.215:7364 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.215 state:D stack:18144 pid:7364 tgid:7352 ppid:6904 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
folio_lock include/linux/pagemap.h:1151 [inline]
truncate_inode_pages_range+0xc1f/0x10e0 mm/truncate.c:380
truncate_inode_pages mm/truncate.c:407 [inline]
truncate_pagecache mm/truncate.c:715 [inline]
truncate_setsize+0xcf/0xf0 mm/truncate.c:740
bchfs_truncate+0x6f3/0xc90 fs/bcachefs/fs-io.c:441
notify_change+0xbca/0xe90 fs/attr.c:552
do_truncate fs/open.c:65 [inline]
do_ftruncate+0x462/0x580 fs/open.c:181
do_sys_ftruncate fs/open.c:196 [inline]
__do_sys_ftruncate fs/open.c:201 [inline]
__se_sys_ftruncate fs/open.c:199 [inline]
__x64_sys_ftruncate+0x94/0xf0 fs/open.c:199
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8fde985d29
RSP: 002b:00007f8fdf840038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f8fdeb76080 RCX: 00007f8fde985d29
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000009
RBP: 00007f8fdea01a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8fdeb76080 R15: 00007fff7b1be7b8
INFO: task syz.8.215:7365 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.215 state:D stack:24896 pid:7365 tgid:7352 ppid:6904 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
__bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7
bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
bch2_page_fault+0x31f/0x960 fs/bcachefs/fs-io-pagecache.c:592
__do_fault+0x135/0x390 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0x39eb/0x5ed0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
populate_vma_page_range+0x264/0x330 mm/gup.c:1932
__mm_populate+0x27a/0x460 mm/gup.c:2035
mm_populate include/linux/mm.h:3386 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:585
ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:542
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8fde985d29
RSP: 002b:00007f8fdf81f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f8fdeb76160 RCX: 00007f8fde985d29
RDX: 0000000002000002 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007f8fdea01a20 R08: 0000000000000008 R09: 0000000000000000
R10: 0000000004002011 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f8fdeb76160 R15: 00007fff7b1be7b8
Showing all locks held in the system:
3 locks held by kworker/u8:0/11:
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000107d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000107d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
3 locks held by kworker/1:0/25:
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc900001f7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900001f7d00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
3 locks held by kworker/u8:3/51:
#0: ffff888031660948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888031660948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000bb7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000bb7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4215
6 locks held by kworker/u8:8/3452:
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc9000c5a7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000c5a7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fc94250 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xd50 net/core/net_namespace.c:602
#3: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: caif_exit_net+0x6f/0x4a0 net/caif/caif_dev.c:528
#4: ffff888149cdde80 (&caifn->caifdevs.lock){+.+.}-{4:4}, at: caif_exit_net+0x82/0x4a0 net/caif/caif_dev.c:529
#5: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#5: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
2 locks held by dhcpcd/5491:
#0: ffffffff8fc85dc8 (vlan_ioctl_mutex){+.+.}-{4:4}, at: sock_ioctl+0x661/0x8e0 net/socket.c:1290
#1: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553
2 locks held by getty/5578:
#0: ffff888031d630a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900032eb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by syz.8.215/7352:
#0: ffff88807c828220 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88807c828220 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6278
#1: ffff88807eff6518 (sb_pagefaults#4){.+.+}-{0:0}, at: do_page_mkwrite+0x15c/0x350 mm/memory.c:3176
1 lock held by syz.8.215/7353:
#0: ffff8880791b82e8 (mapping.invalidate_lock#11){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff8880791b82e8 (mapping.invalidate_lock#11){.+.+}-{4:4}, at: page_cache_ra_order+0x326/0xb60 mm/readahead.c:488
2 locks held by syz.8.215/7364:
#0: ffff88807eff6420 (sb_writers#18){.+.+}-{0:0}, at: do_ftruncate+0x28b/0x580 fs/open.c:178
#1: ffff8880791b8148 (&sb->s_type->i_mutex_key#25){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8880791b8148 (&sb->s_type->i_mutex_key#25){++++}-{4:4}, at: do_truncate fs/open.c:63 [inline]
#1: ffff8880791b8148 (&sb->s_type->i_mutex_key#25){++++}-{4:4}, at: do_ftruncate+0x44e/0x580 fs/open.c:181
1 lock held by syz.8.215/7365:
#0: ffff888034d33160 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline]
#0: ffff888034d33160 (&mm->mmap_lock){++++}-{4:4}, at: __mm_populate+0x1b0/0x460 mm/gup.c:2014
1 lock held by syz-executor/9594:
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6927
1 lock held by syz-executor/9688:
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6927
1 lock held by syz-executor/9755:
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fca0708 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6927
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 3518 Comm: kworker/u8:10 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4851 [inline]
RIP: 0010:__lock_acquire+0x5bf/0x2100 kernel/locking/lockdep.c:5176
Code: 41 8b 1f 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 80 08 27 94 be 08 00 00 00 e8 69 90 88 00 48 0f a3 1d 21 4e ac 12 <73> 22 48 69 c3 c8 00 00 00 48 8d 98 40 87 be 93 48 ba 00 00 00 00
RSP: 0018:ffffc9000ca178f0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000021 RCX: ffffffff817aba57
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff94270880
RBP: 0000000000000003 R08: ffffffff94270887 R09: 1ffffffff284e110
R10: dffffc0000000000 R11: fffffbfff284e111 R12: ffff8880329b0ac4
R13: 000000000000000a R14: 1ffff1100653616a R15: ffff8880329b0b50
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff278c22440 CR3: 0000000031cc8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244