INFO: task syz.3.72:6940 blocked for more than 143 seconds. Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.72 state:D stack:0 pid:6940 tgid:6888 ppid:6420 flags:0x00000001 Call trace: __switch_to+0x420/0x6dc arch/arm64/kernel/process.c:603 context_switch kernel/sched/core.c:5188 [inline] __schedule+0x13d4/0x2418 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6621 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6678 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580 inode_lock include/linux/fs.h:800 [inline] do_truncate+0x1ac/0x28c fs/open.c:63 handle_truncate fs/namei.c:3381 [inline] do_open fs/namei.c:3731 [inline] path_openat+0x2388/0x29f8 fs/namei.c:3886 do_filp_open+0x1bc/0x3cc fs/namei.c:3913 do_sys_openat2+0x124/0x1b8 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_openat fs/open.c:1447 [inline] __se_sys_openat fs/open.c:1442 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1442 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffff80008f74dfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:325 2 locks held by jfsCommit/98: #0: ffff0000dc2d8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2cc/0x2648 fs/jfs/jfs_imap.c:889 #1: ffff0000db66a618 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x2e0/0x2648 fs/jfs/jfs_imap.c:894 4 locks held by kworker/u8:5/568: #0: ffff0000c1869948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff80009cca7c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff80009242b950 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:594 #3: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 2 locks held by getty/6172: #0: ffff0000d28c40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b52e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 5 locks held by syz.3.72/6892: #0: ffff0000cb79a420 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000edca1008 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff0000edca1008 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 #2: ffff0000f1d80a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x134/0x274 fs/bcachefs/io_misc.c:290 #3: ffff0000f1d842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:150 #4: ffff0000f1da6690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x588/0x15ac fs/bcachefs/btree_update_interior.c:1197 5 locks held by syz.3.72/6939: #0: ffff0000cb79a420 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000edca08a8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff0000edca08a8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 #2: ffff0000f1d80a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x134/0x274 fs/bcachefs/io_misc.c:290 #3: ffff0000f1d842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:150 #4: ffff0000f1da6690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x588/0x15ac fs/bcachefs/btree_update_interior.c:1197 2 locks held by syz.3.72/6940: #0: ffff0000cb79a420 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000edca08a8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff0000edca08a8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 5 locks held by syz.3.72/6941: #0: ffff0000cb79a420 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000edca1768 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff0000edca1768 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 #2: ffff0000f1d80a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x134/0x274 fs/bcachefs/io_misc.c:290 #3: ffff0000f1d842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:150 #4: ffff0000f1da6690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x588/0x15ac fs/bcachefs/btree_update_interior.c:1197 5 locks held by syz.3.72/6942: #0: ffff0000cb79a420 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000edca1ec8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff0000edca1ec8 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c fs/open.c:63 #2: ffff0000f1d80a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x134/0x274 fs/bcachefs/io_misc.c:290 #3: ffff0000f1d842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:150 #4: ffff0000f1da6690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x588/0x15ac fs/bcachefs/btree_update_interior.c:1197 2 locks held by bch-reclaim/loo/6934: 1 lock held by syz-executor/8124: #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x5e8/0xa9c net/core/rtnetlink.c:6644 1 lock held by syz-executor/8128: #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x5e8/0xa9c net/core/rtnetlink.c:6644 3 locks held by kworker/u8:27/8213: #0: ffff0000d1b04948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff80009b5f7c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 3 locks held by kworker/u8:34/8221: #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff80009b8a7c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 1 lock held by syz-executor/8241: #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x5e8/0xa9c net/core/rtnetlink.c:6644 1 lock held by syz.2.250/8395: #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800092437ee8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x5e8/0xa9c net/core/rtnetlink.c:6644 =============================================