input: syz0 as /devices/virtual/input/input2170
BTRFS error (device loop2): unsupported checksum algorithm 6435
================================
WARNING: inconsistent lock state
4.19.106-syzkaller #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/0/9 [HC0[0]:SC1[1]:HE1:SE0] takes:
BTRFS error (device loop2): superblock checksum mismatch
00000000515c3f15 (&(&local->client_conns_lock)->rlock){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline]
00000000515c3f15 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_one_client_conn net/rxrpc/conn_client.c:949 [inline]
00000000515c3f15 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x666/0xc00 net/rxrpc/conn_client.c:1002
{SOFTIRQ-ON-W} state was registered at:
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
rxrpc_get_client_conn net/rxrpc/conn_client.c:309 [inline]
rxrpc_connect_call+0x301/0x4630 net/rxrpc/conn_client.c:702
rxrpc_new_client_call+0x8c6/0x1850 net/rxrpc/call_object.c:291
rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:596 [inline]
rxrpc_do_sendmsg+0xf2e/0x1bc1 net/rxrpc/sendmsg.c:652
rxrpc_sendmsg+0x4a8/0x5b0 net/rxrpc/af_rxrpc.c:593
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:632
___sys_sendmsg+0x3e2/0x920 net/socket.c:2115
__sys_sendmmsg+0x195/0x470 net/socket.c:2210
__do_sys_sendmmsg net/socket.c:2239 [inline]
__se_sys_sendmmsg net/socket.c:2236 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
irq event stamp: 53525980
hardirqs last enabled at (53525980): [<ffffffff871f84d7>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last enabled at (53525980): [<ffffffff871f84d7>] _raw_spin_unlock_irqrestore+0x67/0xe0 kernel/locking/spinlock.c:184
hardirqs last disabled at (53525979): [<ffffffff871f8746>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (53525979): [<ffffffff871f8746>] _raw_spin_lock_irqsave+0x66/0xbf kernel/locking/spinlock.c:152
softirqs last enabled at (53525958): [<ffffffff87400650>] __do_softirq+0x650/0x93c kernel/softirq.c:318
softirqs last disabled at (53525963): [<ffffffff813e3d89>] run_ksoftirqd kernel/softirq.c:653 [inline]
softirqs last disabled at (53525963): [<ffffffff813e3d89>] run_ksoftirqd+0x89/0x100 kernel/softirq.c:645
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&local->client_conns_lock)->rlock);
<Interrupt>
lock(&(&local->client_conns_lock)->rlock);
*** DEADLOCK ***
1 lock held by ksoftirqd/0/9:
#0: 00000000b0a5ae1d (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:226 [inline]
#0: 00000000b0a5ae1d (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2584 [inline]
#0: 00000000b0a5ae1d (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
#0: 00000000b0a5ae1d (rcu_callback){....}, at: __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
#0: 00000000b0a5ae1d (rcu_callback){....}, at: rcu_process_callbacks+0xbff/0x17f0 kernel/rcu/tree.c:2881
stack backtrace:
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
print_usage_bug.cold+0x327/0x425 kernel/locking/lockdep.c:2540
valid_state kernel/locking/lockdep.c:2553 [inline]
mark_lock_irq kernel/locking/lockdep.c:2747 [inline]
mark_lock+0xc71/0x11b0 kernel/locking/lockdep.c:3127
mark_irqflags kernel/locking/lockdep.c:3005 [inline]
__lock_acquire+0xc62/0x49c0 kernel/locking/lockdep.c:3368
lock_acquire+0x170/0x400 kernel/locking/lockdep.c:3903
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
rxrpc_put_one_client_conn net/rxrpc/conn_client.c:949 [inline]
rxrpc_put_client_conn+0x666/0xc00 net/rxrpc/conn_client.c:1002
rxrpc_put_connection net/rxrpc/ar-internal.h:951 [inline]
rxrpc_rcu_destroy_call+0xb6/0x1e0 net/rxrpc/call_object.c:657
__rcu_reclaim kernel/rcu/rcu.h:236 [inline]
rcu_do_batch kernel/rcu/tree.c:2584 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
rcu_process_callbacks+0xb2d/0x17f0 kernel/rcu/tree.c:2881
__do_softirq+0x26c/0x93c kernel/softirq.c:292
run_ksoftirqd kernel/softirq.c:653 [inline]
run_ksoftirqd+0x89/0x100 kernel/softirq.c:645
smpboot_thread_fn+0x653/0x9d0 kernel/smpboot.c:164
kthread+0x34a/0x420 kernel/kthread.c:246
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
input: syz0 as /devices/virtual/input/input2173
BTRFS error (device loop2): open_ctree failed
input: syz0 as /devices/virtual/input/input2174
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
input: syz0 as /devices/virtual/input/input2183
input: syz0 as /devices/virtual/input/input2184
input: syz0 as /devices/virtual/input/input2185
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
input: syz0 as /devices/virtual/input/input2192
BTRFS error (device loop2): superblock checksum mismatch
input: syz0 as /devices/virtual/input/input2193
BTRFS error (device loop2): open_ctree failed
input: syz0 as /devices/virtual/input/input2194
input: syz0 as /devices/virtual/input/input2196
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
input: syz0 as /devices/virtual/input/input2205
BTRFS error (device loop2): unsupported checksum algorithm 6435
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed