INFO: task udevd:5164 blocked for more than 143 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24720 pid:5164 tgid:5164 ppid:4550 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
__bio_queue_enter+0x34b/0x690 block/blk-core.c:359
bio_queue_enter block/blk.h:73 [inline]
blk_mq_submit_bio+0xbfb/0x2170 block/blk-mq.c:2965
__submit_bio+0x150/0x300 block/blk-core.c:622
__submit_bio_noacct_mq block/blk-core.c:706 [inline]
submit_bio_noacct_nocheck+0x70f/0x1270 block/blk-core.c:736
mpage_bio_submit_read fs/mpage.c:82 [inline]
mpage_readahead+0x7da/0x930 fs/mpage.c:384
read_pages+0x17e/0x840 mm/readahead.c:160
page_cache_ra_unbounded+0x6ce/0x7f0 mm/readahead.c:273
do_page_cache_ra mm/readahead.c:303 [inline]
force_page_cache_ra+0x2a7/0x310 mm/readahead.c:334
page_cache_sync_readahead include/linux/pagemap.h:1294 [inline]
filemap_get_pages+0x49d/0x2090 mm/filemap.c:2529
filemap_read+0x457/0xfa0 mm/filemap.c:2625
blkdev_read_iter+0x2df/0x440 block/fops.c:749
new_sync_read fs/read_write.c:395 [inline]
vfs_read+0x9c4/0xbd0 fs/read_write.c:476
ksys_read+0x1a0/0x2c0 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8a9bb16b6a
RSP: 002b:00007fff5bf07338 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8a9bb16b6a
RDX: 0000000000000400 RSI: 0000560fe0173008 RDI: 0000000000000009
RBP: 0000000000000400 R08: 0000560fe0172fe0 R09: 0000000000000008
R10: 0000000000000051 R11: 0000000000000246 R12: 0000560fe0172fe0
R13: 0000560fe0172ff8 R14: 0000560fe0172708 R15: 0000560fe01726b0
INFO: task udevd:5201 blocked for more than 145 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:23952 pid:5201 tgid:5201 ppid:4550 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
__bio_queue_enter+0x34b/0x690 block/blk-core.c:359
bio_queue_enter block/blk.h:73 [inline]
blk_mq_submit_bio+0xbfb/0x2170 block/blk-mq.c:2965
__submit_bio+0x150/0x300 block/blk-core.c:622
__submit_bio_noacct_mq block/blk-core.c:706 [inline]
submit_bio_noacct_nocheck+0x70f/0x1270 block/blk-core.c:736
mpage_bio_submit_read fs/mpage.c:82 [inline]
mpage_readahead+0x7da/0x930 fs/mpage.c:384
read_pages+0x17e/0x840 mm/readahead.c:160
page_cache_ra_unbounded+0x6ce/0x7f0 mm/readahead.c:273
do_page_cache_ra mm/readahead.c:303 [inline]
force_page_cache_ra+0x2a7/0x310 mm/readahead.c:334
page_cache_sync_readahead include/linux/pagemap.h:1294 [inline]
filemap_get_pages+0x49d/0x2090 mm/filemap.c:2529
filemap_read+0x457/0xfa0 mm/filemap.c:2625
blkdev_read_iter+0x2df/0x440 block/fops.c:749
new_sync_read fs/read_write.c:395 [inline]
vfs_read+0x9c4/0xbd0 fs/read_write.c:476
ksys_read+0x1a0/0x2c0 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8a9bb16b6a
RSP: 002b:00007fff5bf07338 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8a9bb16b6a
RDX: 0000000000000400 RSI: 0000560fe0173d78 RDI: 0000000000000009
RBP: 0000000000000400 R08: 0000560fe0173d50 R09: 0000000000000008
R10: 0000000000000051 R11: 0000000000000246 R12: 0000560fe0173d50
R13: 0000560fe0173d68 R14: 0000560fe0172708 R15: 0000560fe01726b0
INFO: task syz-executor.3:5658 blocked for more than 147 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D
stack:25488 pid:5658 tgid:5657 ppid:5116 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xaa9/0xd00 kernel/workqueue.c:4211
__lru_add_drain_all+0x504/0x570 mm/swap.c:902
invalidate_bdev+0x76/0xa0 block/bdev.c:100
invalidate_disk+0x45/0xc0 block/genhd.c:745
__loop_clr_fd+0x322/0x810 drivers/block/loop.c:1160
loop_clr_fd drivers/block/loop.c:1253 [inline]
lo_ioctl+0x174a/0x21a0 drivers/block/loop.c:1555
blkdev_ioctl+0x580/0x6b0 block/ioctl.c:677
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc06c07dacb
RSP: 002b:00007fc06cda8ea0 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007fc06c07dacb
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000044018
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00007fc06cda8f40 R14: 0000000000000540 R15: 0000000020000100
INFO: task syz-executor.0:5662 blocked for more than 149 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25648 pid:5662 tgid:5660 ppid:5111 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
__lru_add_drain_all+0x66/0x570 mm/swap.c:857
invalidate_bdev+0x76/0xa0 block/bdev.c:100
invalidate_disk+0x45/0xc0 block/genhd.c:745
__loop_clr_fd+0x322/0x810 drivers/block/loop.c:1160
loop_clr_fd drivers/block/loop.c:1253 [inline]
lo_ioctl+0x174a/0x21a0 drivers/block/loop.c:1555
blkdev_ioctl+0x580/0x6b0 block/ioctl.c:677
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d9727dacb
RSP: 002b:00007f2d980b2ea0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007f2d9727dacb
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000004004
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00007f2d980b2f40 R14: 0000000000000276 R15: 0000000020000100
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0:
ffffffff8e333e60
(
rcu_read_lock){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by kworker/1:1/45:
3 locks held by kworker/u8:9/2830:
#0:
ffff888029b54148
(
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1:
ffffc9000a14fd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
ffffc9000a14fd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8f5e6b08
(
rtnl_mutex
){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733
4 locks held by kworker/u8:10/2846:
5 locks held by kworker/u8:11/2858:
6 locks held by kworker/u8:12/2866:
#0:
ffff888015ed5948
(
(wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
(wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1:
ffffc9000a58fd00
(net_cleanup_work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8f5da2d0
(pernet_ops_rwsem){++++}-{3:3}
, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3:
ffff8880611b60e8
(
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
, at: devlink_pernet_pre_exit+0x13b/0x440 net/devlink/core.c:506
#4:
ffff8880611b7250
(&devlink->lock_key#2){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
(&devlink->lock_key#2){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
(&devlink->lock_key#2){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x14d/0x440 net/devlink/core.c:506
#5:
ffffffff8f5e6b08
(
rtnl_mutex
){+.+.}-{3:3}
, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871
2 locks held by dhcpcd/4764:
#0:
ffff888022640678
(
nlk_cb_mutex-ROUTE
){+.+.}-{3:3}
, at: netlink_dump+0xcb/0xe50 net/netlink/af_netlink.c:2277
#1: ffffffff8f5e6b08
(
rtnl_mutex){+.+.}-{3:3}
, at: netlink_dump+0x5d3/0xe50 net/netlink/af_netlink.c:2336
2 locks held by getty/4857:
#0:
ffff88802a8d30a0
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc90002f162f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
6 locks held by kworker/1:3/5119:
4 locks held by udevd/5163:
#0:
ffff88802a02b418
(
&p->lock