rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=754c/1/0x4000000000000000 softirq=37212/37212 fqs=5250
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:    60354       3433            0
rcu: 	cputime:     1327         45        51110   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=22973 q=2329 ncpus=2)
CPU: 0 UID: 0 PID: 8992 Comm: syz.5.712 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_cmp4+0x83/0x90
Code: 8d 52 28 4d 39 ca 77 22 89 ff 89 f6 49 ff c0 4c 89 01 48 c7 44 11 08 04 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 <c3> cc cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90006476d78 EFLAGS: 00000297
RAX: ffffffff844b7e11 RBX: 000000016a3c9511 RCX: 0000000000000002
RDX: ffff8881264ed640 RSI: 0000000000000100 RDI: 00000000ffffffff
RBP: ffffc90006477178 R08: ffff888125e4a9f7 R09: 1ffff11024bc953e
R10: dffffc0000000000 R11: ffffed1024bc953f R12: 0000000000000100
R13: 00000000ffffffff R14: 0000000000000100 R15: 0000000000000000
FS:  00007fa52c04a6c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd1ad3bdfc8 CR3: 000000012a9ea000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bch2_journal_space_available+0xeb1/0x1d90
 __bch2_fs_read_write+0x35e/0x590
 bch2_fs_read_write_early+0x26/0x40
 __bch2_run_recovery_passes+0x3bd/0x1060
 bch2_run_recovery_passes+0x184/0x210
 bch2_fs_recovery+0x2690/0x3a50
 bch2_fs_start+0xaaf/0xda0
 bch2_fs_get_tree+0xb39/0x1520
 vfs_get_tree+0x92/0x2b0
 do_new_mount+0x2a2/0x9e0
 __se_sys_mount+0x317/0x410
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa52b19038a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa52c049e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa52c049ef0 RCX: 00007fa52b19038a
RDX: 00002000000000c0 RSI: 00002000000001c0 RDI: 00007fa52c049eb0
RBP: 00002000000000c0 R08: 00007fa52c049ef0 R09: 0000000000800000
R10: 0000000000800000 R11: 0000000000000246 R12: 00002000000001c0
R13: 00007fa52c049eb0 R14: 0000000000005964 R15: 0000200000000200
 </TASK>
