rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=6454/1/0x4000000000000000 softirq=182030/182030 fqs=5172
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     8909       5603            0
rcu: 	cputime:      400        794        51294   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=219349 q=2041 ncpus=2)
CPU: 1 UID: 0 PID: 27477 Comm: syz.4.4165 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_pc+0x11/0x70
Code: 5b e9 f3 ab 58 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 d0 a0 92 <65> 8b 15 88 22 e1 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc90003f0ed78 EFLAGS: 00000286
RAX: ffffffff844beefc RBX: 00000001281f5461 RCX: ffff88810e221cc0
RDX: ffff88810e221cc0 RSI: 0000000000000100 RDI: 00000000ffffffff
RBP: ffffc90003f0f178 R08: ffff88812d4ca9f7 R09: 1ffff11025a9953e
R10: dffffc0000000000 R11: ffffed1025a9953f R12: 0000000000000100
R13: 00000000ffffffff R14: 0000000000000100 R15: 0000000000000000
FS:  00007f3d741a16c0(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d73373420 CR3: 000000011b43c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bch2_journal_space_available+0xedc/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: 0033:0x7f3d733903ca
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:00007f3d741a0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3d741a0ef0 RCX: 00007f3d733903ca
RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007f3d741a0eb0
RBP: 00002000000000c0 R08: 00007f3d741a0ef0 R09: 0000000001800402
R10: 0000000001800402 R11: 0000000000000246 R12: 0000200000000000
R13: 00007f3d741a0eb0 R14: 0000000000005989 R15: 0000200000000100
 </TASK>
