================================ WARNING: inconsistent lock state 4.14.307-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. ksoftirqd/0/7 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&local->client_conns_lock)->rlock){+.?.}, at: [] spin_lock include/linux/spinlock.h:317 [inline] (&(&local->client_conns_lock)->rlock){+.?.}, at: [] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:905 [inline] (&(&local->client_conns_lock)->rlock){+.?.}, at: [] rxrpc_put_client_conn+0x661/0xac0 net/rxrpc/conn_client.c:957 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:152 spin_lock include/linux/spinlock.h:317 [inline] rxrpc_get_client_conn net/rxrpc/conn_client.c:306 [inline] rxrpc_connect_call+0x2bb/0x3e10 net/rxrpc/conn_client.c:692 rxrpc_new_client_call+0x8f4/0x1a10 net/rxrpc/call_object.c:276 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:531 [inline] rxrpc_do_sendmsg+0x8dc/0xfb0 net/rxrpc/sendmsg.c:583 rxrpc_sendmsg+0x3cf/0x5f0 net/rxrpc/af_rxrpc.c:543 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 irq event stamp: 1133032 hardirqs last enabled at (1133032): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (1133032): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:192 hardirqs last disabled at (1133031): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (1133031): [] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:160 softirqs last enabled at (1132870): [] __do_softirq+0x68b/0x9ff kernel/softirq.c:314 softirqs last disabled at (1132875): [] run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&local->client_conns_lock)->rlock); lock(&(&local->client_conns_lock)->rlock); *** DEADLOCK *** 1 lock held by ksoftirqd/0/7: #0: (rcu_callback){....}, at: [] __rcu_reclaim kernel/rcu/rcu.h:185 [inline] #0: (rcu_callback){....}, at: [] rcu_do_batch kernel/rcu/tree.c:2699 [inline] #0: (rcu_callback){....}, at: [] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] #0: (rcu_callback){....}, at: [] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] #0: (rcu_callback){....}, at: [] rcu_process_callbacks+0x84e/0x1180 kernel/rcu/tree.c:2946 stack backtrace: CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_usage_bug.cold+0x42e/0x570 kernel/locking/lockdep.c:2589 valid_state kernel/locking/lockdep.c:2602 [inline] mark_lock_irq kernel/locking/lockdep.c:2796 [inline] mark_lock+0xb4d/0x1050 kernel/locking/lockdep.c:3194 mark_irqflags kernel/locking/lockdep.c:3072 [inline] __lock_acquire+0xc81/0x3f20 kernel/locking/lockdep.c:3448 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:152 spin_lock include/linux/spinlock.h:317 [inline] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:905 [inline] rxrpc_put_client_conn+0x661/0xac0 net/rxrpc/conn_client.c:957 rxrpc_put_connection net/rxrpc/ar-internal.h:862 [inline] rxrpc_rcu_destroy_call+0x83/0x190 net/rxrpc/call_object.c:653 __rcu_reclaim kernel/rcu/rcu.h:195 [inline] rcu_do_batch kernel/rcu/tree.c:2699 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] rcu_process_callbacks+0x780/0x1180 kernel/rcu/tree.c:2946 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670 smpboot_thread_fn+0x5c1/0x920 kernel/smpboot.c:164 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 loop3: p4 < > loop3: p4 < > loop3: p4 < > print_req_error: I/O error, dev loop3, sector 0 loop3: p4 < > caif:caif_disconnect_client(): nothing to disconnect loop_reread_partitions: partition scan of loop3 () failed (rc=-16) print_req_error: I/O error, dev loop3, sector 0 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3p4, logical block 0, async page read Buffer I/O error on dev loop3p4, logical block 0, async page read caif:caif_disconnect_client(): nothing to disconnect loop3: p4 < > caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended caif:caif_disconnect_client(): nothing to disconnect EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue caif:caif_disconnect_client(): nothing to disconnect EXT4-fs error (device loop1): ext4_free_inode:286: comm syz-executor.1: reserved or nonexistent inode 3 EXT4-fs (loop0): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop0): orphan cleanup on readonly fs EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue caif:caif_disconnect_client(): nothing to disconnect EXT4-fs error (device loop1): ext4_free_inode:286: comm syz-executor.1: reserved or nonexistent inode 3 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue jfs: Unrecognized mount option "noiniocharset=xacromanian" or missing value EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop0): re-mounted. Opts: (null) EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop0): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs error (device loop1): ext4_free_inode:286: comm syz-executor.1: reserved or nonexistent inode 3 EXT4-fs (loop0): orphan cleanup on readonly fs EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop0): re-mounted. Opts: (null) EXT4-fs (loop1): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs error (device loop1): ext4_free_inode:286: comm syz-executor.1: reserved or nonexistent inode 3 jfs: Unrecognized mount option "noiniocharset=xacromanian" or missing value EXT4-fs (loop0): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop0): orphan cleanup on readonly fs EXT4-fs (loop5): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop5): orphan cleanup on readonly fs EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop5): 1 orphan inode deleted EXT4-fs (loop5): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue EXT4-fs (loop5): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop5): re-mounted. Opts: (null) EXT4-fs (loop0): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue EXT4-fs (loop5): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop5): orphan cleanup on readonly fs EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop0): re-mounted. Opts: (null) EXT4-fs (loop5): 1 orphan inode deleted EXT4-fs (loop5): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue jfs: Unrecognized mount option "noiniocharset=xacromanian" or missing value EXT4-fs (loop0): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop0): orphan cleanup on readonly fs EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters EXT4-fs (loop5): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue EXT4-fs (loop5): re-mounted. Opts: (null) EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop0): re-mounted. Opts: (null) EXT4-fs (loop5): Journaled quota options ignored when QUOTA feature is enabled EXT4-fs (loop5): orphan cleanup on readonly fs EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 32 vs 41 free clusters jfs: Unrecognized mount option "noiniocharset=xacromanian" or missing value EXT4-fs (loop5): 1 orphan inode deleted EXT4-fs (loop5): mounted filesystem without journal. Opts: nolazytime,resuid=0x000000000000ee00,inode_readahead_blks=0x0000000000000002,grpjquota=./file0,data_err=abort,noload,noinit_itable,grpid,usrquota,,errors=continue EXT4-fs (loop5): warning: mounting fs with errors, running e2fsck is recommended EXT4-fs (loop5): re-mounted. Opts: (null) print_req_error: 2 callbacks suppressed print_req_error: I/O error, dev loop1, sector 0