rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=ea74/1/0x4000000000000000 softirq=79349/79349 fqs=5196
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     8797       4778            0
rcu: 	cputime:      248        462        51741   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=74501 q=3817 ncpus=2)
CPU: 0 UID: 0 PID: 14840 Comm: syz.9.2800 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+0x4a/0x70
Code: 81 fa 00 01 00 00 75 35 83 b9 3c 16 00 00 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 48 8d 7e 01 <8b> 89 1c 16 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 c3 cc cc
RSP: 0018:ffffc90002a9ed78 EFLAGS: 00000246
RAX: ffffffff844b973c RBX: 000000017a24b799 RCX: ffff88801f4cd640
RDX: ffffc9000a36a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002a9f178 R08: ffff8880433ca9f7 R09: 1ffff1100867953e
R10: dffffc0000000000 R11: ffffed100867953f R12: 0000000000000100
R13: 00000000ffffffff R14: 0000000000000100 R15: 0000000000000000
FS:  00007f08071606c0(0000) GS:ffff8880b8618000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000080 CR3: 000000012fdba000 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: 0033:0x7f080639038a
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:00007f080715fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f080715fef0 RCX: 00007f080639038a
RDX: 00002000000058c0 RSI: 00002000000000c0 RDI: 00007f080715feb0
RBP: 00002000000058c0 R08: 00007f080715fef0 R09: 0000000000010000
R10: 0000000000010000 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f080715feb0 R14: 00000000000058ea R15: 0000200000020940
 </TASK>
