forked to background, child pid 1472
[ 4.397863][ T1473] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 26.342143][ T1634] cgroup: Unknown subsys name 'net'
[ 26.430955][ T1634] cgroup: Unknown subsys name 'rlimit'
[ 27.456248][ T1634] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts.
2024/07/04 23:01:35 ignoring optional flag "sandboxArg"="0"
2024/07/04 23:01:36 parsed 1 programs
2024/07/04 23:01:37 executed programs: 0
[ 57.436163][ T2076] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 62.341789][ T4133] loop0: detected capacity change from 0 to 256
[ 62.341800][ T4131] loop1: detected capacity change from 0 to 256
[ 62.342026][ T4131] exfat: Deprecated parameter 'utf8'
[ 62.348411][ T4133] exfat: Deprecated parameter 'utf8'
[ 62.385511][ T4131] exFAT-fs (loop1): failed to load upcase table (idx : 0x00010000, chksum : 0xc61f63e4, utbl_chksum : 0xe619d30d)
[ 62.400207][ T4133] exFAT-fs (loop0): failed to load upcase table (idx : 0x00010000, chksum : 0xc61f63e4, utbl_chksum : 0xe619d30d)
[ 162.439025][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 162.446208][ C0] rcu: (detected by 0, t=10002 jiffies, g=2853, q=522 ncpus=2)
[ 162.453829][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294953458-4294943455), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 162.467170][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g2853 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 162.478246][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 162.488185][ C0] rcu: RCU grace-period kthread stack dump:
[ 162.494061][ C0] task:rcu_preempt state:R running task stack:14480 pid:16 tgid:16 ppid:2 flags:0x00004000
[ 162.506125][ C0] Call Trace:
[ 162.509386][ C0]
[ 162.512309][ C0] __schedule+0x615/0x9a0
[ 162.516627][ C0] ? schedule+0x21/0x140
[ 162.520927][ C0] schedule+0xac/0x140
[ 162.524964][ C0] schedule_timeout+0x118/0x190
[ 162.529794][ C0] ? __pfx_process_timeout+0x10/0x10
[ 162.535227][ C0] rcu_gp_fqs_loop+0x17a/0x570
[ 162.540222][ C0] ? _raw_spin_unlock_irq+0x29/0x50
[ 162.545393][ C0] rcu_gp_kthread+0x1c/0x110
[ 162.549954][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10
[ 162.555128][ C0] kthread+0xea/0x100
[ 162.559080][ C0] ? __pfx_kthread+0x10/0x10
[ 162.563898][ C0] ret_from_fork+0x32/0x40
[ 162.568299][ C0] ? __pfx_kthread+0x10/0x10
[ 162.572930][ C0] ret_from_fork_asm+0x1a/0x30
[ 162.577683][ C0]
[ 162.580884][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 162.587191][ C0] Sending NMI from CPU 0 to CPUs 1:
[ 162.592410][ C1] NMI backtrace for cpu 1
[ 162.592420][ C1] CPU: 1 PID: 4131 Comm: syz-executor.1 Not tainted 6.10.0-rc6-syzkaller #0
[ 162.592424][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 162.592428][ C1] RIP: 0010:__lock_acquire+0x178/0x4c0
[ 162.592442][ C1] Code: 41 c1 e5 0f 45 0f b7 dd 83 e5 03 c1 e5 10 c1 e6 14 31 c0 45 85 c0 0f 95 c0 c1 e0 13 41 c1 e2 15 44 09 dd 09 c5 44 09 d5 09 f5 <09> fd 43 89 ac e6 20 0a 00 00 47 89 8c e6 24 0a 00 00 83 3d df 0d
[ 162.592445][ C1] RSP: 0018:ffffc9000245f978 EFLAGS: 00000046
[ 162.592448][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000003
[ 162.592450][ C1] RDX: 00000000000000a7 RSI: 0000000000000000 RDI: 00000000000000a7
[ 162.592452][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 162.592453][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000f
[ 162.592455][ C1] R13: 0000000000000000 R14: ffff8881086b9b40 R15: ffffffff8360f750
[ 162.592457][ C1] FS: 00007f7ecab566c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
[ 162.592459][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 162.592461][ C1] CR2: 00007fd60648f440 CR3: 00000001037da000 CR4: 00000000003506f0
[ 162.592466][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 162.592470][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 162.592472][ C1] Call Trace:
[ 162.592475][ C1]
[ 162.592477][ C1] ? nmi_cpu_backtrace+0x110/0x160
[ 162.592482][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 162.592487][ C1] ? nmi_handle+0x99/0x1c0
[ 162.592491][ C1] ? nmi_handle+0x25/0x1c0
[ 162.592493][ C1] ? __lock_acquire+0x178/0x4c0
[ 162.592496][ C1] ? default_do_nmi+0x63/0x160
[ 162.592501][ C1] ? exc_nmi+0xfc/0x170
[ 162.592504][ C1] ? end_repeat_nmi+0xf/0x53
[ 162.592509][ C1] ? __lock_acquire+0x178/0x4c0
[ 162.592512][ C1] ? __lock_acquire+0x178/0x4c0
[ 162.592521][ C1] ? __lock_acquire+0x178/0x4c0
[ 162.592524][ C1]
[ 162.592525][ C1]
[ 162.592527][ C1] lock_acquire+0xd9/0x1f0
[ 162.592530][ C1] ? fs_reclaim_acquire+0x70/0xf0
[ 162.592536][ C1] ? fs_reclaim_acquire+0x70/0xf0
[ 162.592540][ C1] fs_reclaim_acquire+0x8c/0xf0
[ 162.592543][ C1] ? fs_reclaim_acquire+0x70/0xf0
[ 162.592547][ C1] bdev_getblk+0x2c/0x2e0
[ 162.592552][ C1] __bread_gfp+0x21/0xf0
[ 162.592556][ C1] exfat_ent_get+0x59/0x140
[ 162.592561][ C1] exfat_iterate+0x5ba/0xaa0
[ 162.592569][ C1] ? __pfx_exfat_iterate+0x10/0x10
[ 162.592572][ C1] wrap_directory_iterator+0x4d/0x70
[ 162.592577][ C1] iterate_dir+0xc2/0x1c0
[ 162.592580][ C1] __se_sys_getdents64+0x64/0xf0
[ 162.592584][ C1] ? __pfx_filldir64+0x10/0x10
[ 162.592587][ C1] do_syscall_64+0x8d/0x170
[ 162.592591][ C1] ? clear_bhb_loop+0x55/0xb0
[ 162.592594][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 162.592598][ C1] RIP: 0033:0x7f7ec9e7dda9
[ 162.592604][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[ 162.592607][ C1] RSP: 002b:00007f7ecab560c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
[ 162.592610][ C1] RAX: ffffffffffffffda RBX: 00007f7ec9fabf80 RCX: 00007f7ec9e7dda9
[ 162.592611][ C1] RDX: 0000000000000646 RSI: 0000000020000240 RDI: 0000000000000005
[ 162.592613][ C1] RBP: 00007f7ec9eca47a R08: 0000000000000000 R09: 0000000000000000
[ 162.592614][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 162.592616][ C1] R13: 0000000000000006 R14: 00007f7ec9fabf80 R15: 00007ffc02b90ac8
[ 162.592619][ C1]