INFO: task syz.4.969:9482 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.969 state:D stack:21360 pid:9482 tgid:9481 ppid:6544 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
xlog_grant_head_wait+0x43b/0xa90 fs/xfs/xfs_log.c:266
xlog_grant_head_check+0x342/0x4f0
xfs_log_reserve+0x337/0x8e0 fs/xfs/xfs_log.c:436
xfs_trans_reserve+0x20a/0x640 fs/xfs/xfs_trans.c:195
xfs_trans_alloc+0x40e/0x830 fs/xfs/xfs_trans.c:284
xfs_trans_alloc_inode+0x1ac/0x5d0 fs/xfs/xfs_trans.c:1077
xfs_attr_set+0x8a8/0x1420 fs/xfs/libxfs/xfs_attr.c:1097
xfs_xattr_set+0x1ff/0x350 fs/xfs/xfs_xattr.c:187
__vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200
__vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
vfs_setxattr+0x221/0x430 fs/xattr.c:321
do_setxattr fs/xattr.c:629 [inline]
path_setxattr+0x37e/0x4d0 fs/xattr.c:658
__do_sys_lsetxattr fs/xattr.c:683 [inline]
__se_sys_lsetxattr fs/xattr.c:679 [inline]
__x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679
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: 0033:0x7f3d7d37dff9
RSP: 002b:00007f3d7e0b4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f3d7d535f80 RCX: 00007f3d7d37dff9
RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 0000000020000100
RBP: 00007f3d7d3f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe37 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3d7d535f80 R15: 00007ffe22ad2ea8
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
#0: ffff88814bbbd948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88814bbbd948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90000117d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000117d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
5 locks held by kworker/u8:2/35:
2 locks held by kworker/u8:4/79:
3 locks held by kworker/u8:5/963:
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900039a7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900039a7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
5 locks held by kworker/u8:6/1116:
#0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90004067d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90004067d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc5990 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:580
#3: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xaa0 net/core/dev.c:11934
#4: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#4: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
2 locks held by dhcpcd/4893:
#0: ffffffff8fcb6fa8 (vlan_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x661/0x8e0 net/socket.c:1308
#1: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553
2 locks held by getty/4985:
#0: ffff88802f3e70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:7/5294:
3 locks held by syz.4.969/9482:
#0: ffff88805f3ae420 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88805c9e2230 (&sb->s_type->i_mutex_key#33){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#1: ffff88805c9e2230 (&sb->s_type->i_mutex_key#33){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x430 fs/xattr.c:320
#2: ffff88805f3ae610 (sb_internal#4){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x1ac/0x5d0 fs/xfs/xfs_trans.c:1077
2 locks held by kworker/1:0/9891:
#0: ffff888060e9c548 ((wq_completion)xfs-sync/loop4){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888060e9c548 ((wq_completion)xfs-sync/loop4){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90002dbfd00 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90002dbfd00 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
2 locks held by syz.4.1050/9945:
#0: ffff88805f3ae0e0 (&type->s_umount_key#76){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88805f3ae0e0 (&type->s_umount_key#76){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff88805f3ae610 (sb_internal#4){.+.+}-{0:0}, at: xfs_qm_scall_setqlim+0x274/0x12c0 fs/xfs/xfs_qm_syscalls.c:308
1 lock held by syz-executor/10026:
#0: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#0: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
7 locks held by syz-executor/11010:
#0: ffff8880240da420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
#0: ffff8880240da420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#1: ffff888031fc8c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888144738788 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f570588 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff88807dbc60e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88807dbc60e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88807dbc60e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88807dbc7250 (&devlink->lock_key#19){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672
#6: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x71/0x5c0 drivers/net/netdevsim/netdev.c:773
1 lock held by syz-executor/11016:
#0: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/11124:
#0: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672
2 locks held by syz.1.1390/11215:
#0: ffffffff8fd381f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
#1: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16580
2 locks held by syz.1.1390/11220:
#0: ffffffff8fd381f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
#1: ffffffff8fcd2488 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16580
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5294 Comm: kworker/0:7 Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:__lock_acquire+0x15c/0x2050
Code: e8 03 0f b6 04 30 84 c0 48 89 54 24 28 0f 85 fd 15 00 00 83 3d 44 9b cc 18 00 75 09 83 fa 30 0f 83 07 14 00 00 44 89 6c 24 60 <48> 89 6c 24 48 4c 89 64 24 30 44 8b b4 24 d8 00 00 00 48 c7 c0 c0
RSP: 0018:ffffc900039d75d0 EFLAGS: 00000083
RAX: 0000000000000004 RBX: ffffffff93c418b8 RCX: ffffffff9a3cf903
RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffffffff8ea39fc0
RBP: ffff88802c4ba8d8 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2039ede R12: ffff88802c4b9e00
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8ea39fc0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005614138ad018 CR3: 000000007bd5e000 CR4: 0000000000350ef0
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
kasan_depopulate_vmalloc_pte+0x1e/0x90 mm/kasan/shadow.c:404
apply_to_pte_range mm/memory.c:2817 [inline]
apply_to_pmd_range mm/memory.c:2861 [inline]
apply_to_pud_range mm/memory.c:2897 [inline]
apply_to_p4d_range mm/memory.c:2933 [inline]
__apply_to_page_range+0x808/0xde0 mm/memory.c:2967
kasan_release_vmalloc+0x9a/0xb0 mm/kasan/shadow.c:525
purge_vmap_node+0x417/0x810 mm/vmalloc.c:2204
__purge_vmap_area_lazy+0x708/0xae0 mm/vmalloc.c:2288
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2322
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244