bisecting fixing commit since aec3002d07fd2564cd32e56f126fa6db14a168bb
building syzkaller on 907bf74686129436f81aa40336ee89f7cc01b0b4
testing commit aec3002d07fd2564cd32e56f126fa6db14a168bb with gcc (GCC) 8.4.1 20210217
kernel signature: 6eb8eeaedb68e9397b47190d3dd8befb619e9b9853f2fe717e8c30ae9c1c2ff6
all runs: crashed: WARNING in perf_group_attach
testing current HEAD 1e986fe9ad15b8406034c504afc5ae76f0a8e852
testing commit 1e986fe9ad15b8406034c504afc5ae76f0a8e852 with gcc (GCC) 8.4.1 20210217
kernel signature: e2fffaffe6ebb04486c93f47c3920927aa6399d137a8f4e2e7975d2c1c0ae77d
all runs: crashed: WARNING in perf_group_attach
revisions tested: 2, total time: 34m58.119872543s (build: 26m51.575547164s, test: 7m0.861025782s)
the crash still happens on HEAD
commit msg: Linux 4.19.191
crash: WARNING in perf_group_attach
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
WARNING: CPU: 0 PID: 2298 at kernel/events/core.c:1840 perf_group_attach+0x3b1/0x470 kernel/events/core.c:1832
Modules linked in:
CPU: 0 PID: 2298 Comm: kworker/u4:4 Not tainted 4.19.191-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:perf_group_attach+0x3b1/0x470 kernel/events/core.c:1840
Code: ec 10 4c 39 e3 75 d7 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 2e 53 1d 00 e9 c8 fc ff ff e8 24 53 1d 00 e9 fe fc ff ff <0f> 0b e9 75 fd ff ff e8 33 53 1d 00 eb c1 e8 2c 53 1d 00 e9 6d fc
RSP: 0018:ffff8881f6807ec0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffff8881dc09d2c0 RCX: 1ffff1103b8dda62
RDX: 1ffff1103b8dda8b RSI: ffff8881f6831460 RDI: ffff8881dc6ed458
RBP: ffff8881f6807ef0 R08: ffffffff890a5018 R09: 0000000000000006
R10: fffffbfff1214a01 R11: 0000000000000001 R12: ffff8881dc6ed240
R13: ffffe8ffffc11bd0 R14: 0000000000000000 R15: ffff8881f6831448
FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005562285591f0 CR3: 000000000806d001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 000000000011060a
Call Trace:
add_event_to_ctx kernel/events/core.c:2398 [inline]
__perf_install_in_context+0x3f6/0x880 kernel/events/core.c:2539
remote_function kernel/events/core.c:87 [inline]
remote_function+0xff/0x180 kernel/events/core.c:67
flush_smp_call_function_queue+0x10e/0x3d0 kernel/smp.c:243
generic_smp_call_function_single_interrupt+0xe/0x20 kernel/smp.c:192
smp_call_function_single_interrupt+0xa0/0x440 arch/x86/kernel/smp.c:304
call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:916
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:lock_acquire+0x1f1/0x3d0 kernel/locking/lockdep.c:3911
Code: 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 aa 01 00 00 48 83 3d 33 7c c6 06 00 0f 84 31 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b
RSP: 0018:ffff8881eb217cb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: ffff8881eb2040c0 RCX: 1ffff1103d640937
RDX: 1ffffffff1024021 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8881eb217cf8 R08: ffff8881eb2049b8 R09: 0000000000000002
R10: ffff8881eb204998 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
rcu_read_lock include/linux/rcupdate.h:627 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:419 [inline]
batadv_nc_worker+0xec/0x630 net/batman-adv/network-coding.c:730
process_one_work+0x830/0x1670 kernel/workqueue.c:2152
worker_thread+0x85/0xb60 kernel/workqueue.c:2295
kthread+0x347/0x410 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
irq event stamp: 2409468
hardirqs last enabled at (2409467): [] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (2409468): [] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (2409330): [] spin_unlock_bh include/linux/spinlock.h:374 [inline]
softirqs last enabled at (2409330): [] batadv_nc_purge_paths+0x1d6/0x2f0 net/batman-adv/network-coding.c:482
softirqs last disabled at (2409328): [] spin_lock_bh include/linux/spinlock.h:334 [inline]
softirqs last disabled at (2409328): [] batadv_nc_purge_paths+0xc0/0x2f0 net/batman-adv/network-coding.c:453
---[ end trace f28a7de0c774a7cd ]---
WARNING: CPU: 0 PID: 9 at kernel/events/core.c:1999 INIT_LIST_HEAD include/linux/list.h:29 [inline]
WARNING: CPU: 0 PID: 9 at kernel/events/core.c:1999 list_del_init include/linux/list.h:160 [inline]
WARNING: CPU: 0 PID: 9 at kernel/events/core.c:1999 perf_event_ctx_deactivate kernel/events/core.c:1175 [inline]
WARNING: CPU: 0 PID: 9 at kernel/events/core.c:1999 event_sched_out.isra.99+0x69b/0x970 kernel/events/core.c:2026
Modules linked in:
CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G W 4.19.191-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:event_sched_out.isra.99+0x69b/0x970 kernel/events/core.c:1999
Code: 89 9d c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 5d 02 00 00 49 89 9d c8 00 00 00 e9 39 fd ff ff <0f> 0b e9 ac f9 ff ff 65 48 8b 1c 25 40 ee 01 00 48 8d bb 84 08 00
RSP: 0018:ffff8881f6807dd8 EFLAGS: 00010083
RAX: dffffc0000000000 RBX: ffff8881dc09d2c0 RCX: ffffe8ffffc11bd0
RDX: 1ffff1103b8dda8b RSI: ffffe8ffffc11d68 RDI: ffff8881dc6ed458
RBP: ffff8881f6807e28 R08: ffffed103e6b3401 R09: 1ffff1103ed050a1
R10: ffffed103e6b3400 R11: ffff8881f359a003 R12: ffffe8ffffc11bd0
R13: ffffe8ffffc11bd0 R14: ffff8881dc6ed240 R15: ffff8881dc6ed240
FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04b476d028 CR3: 000000000806d001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
group_sched_out.part.100+0x17b/0x1f0 kernel/events/core.c:2053
group_sched_out kernel/events/core.c:2042 [inline]
ctx_sched_out+0x6a0/0x940 kernel/events/core.c:2963
cpu_ctx_sched_out kernel/events/core.c:3246 [inline]
ctx_resched+0xc4/0xe0 kernel/events/core.c:2478
__perf_install_in_context+0x40d/0x880 kernel/events/core.c:2540
remote_function kernel/events/core.c:87 [inline]
remote_function+0xff/0x180 kernel/events/core.c:67
flush_smp_call_function_queue+0x10e/0x3d0 kernel/smp.c:243
generic_smp_call_function_single_interrupt+0xe/0x20 kernel/smp.c:192
smp_call_function_single_interrupt+0xa0/0x440 arch/x86/kernel/smp.c:304
call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:916
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:kfree+0x11a/0x220 mm/slab.c:3823
Code: 1f 44 00 00 e8 b7 3b d5 ff 5b 41 5c 41 5d 41 5e 5d c3 e8 19 3a d5 ff 48 83 3d f9 fa 81 06 00 0f 84 07 01 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 5b 41 5c 41 5d 41 5e 5d c3 4c 89 f2 48 89 de 4c 89
RSP: 0018:ffff8881f56cfc18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: 0000000000000007 RBX: ffff8881ddd71980 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8881f56baac8 RDI: 0000000000000286
RBP: ffff8881f56cfc38 R08: 0000000000000040 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286
R13: ffff8881f64004c0 R14: ffffffff85924d45 R15: ffff8881d2018e88
ip6_dst_destroy+0xf5/0x120 net/ipv6/route.c:377
dst_destroy+0xec/0x330 net/core/dst.c:132
dst_destroy_rcu+0xd/0x10 net/core/dst.c:154
__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+0xbcd/0x19a0 kernel/rcu/tree.c:2881
__do_softirq+0x25f/0x919 kernel/softirq.c:292
run_ksoftirqd kernel/softirq.c:653 [inline]
run_ksoftirqd+0x94/0x100 kernel/softirq.c:645
smpboot_thread_fn+0x55f/0x8a0 kernel/smpboot.c:164
kthread+0x347/0x410 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
irq event stamp: 517271
hardirqs last enabled at (517270): [] kfree+0x107/0x220 mm/slab.c:3823
hardirqs last disabled at (517271): [] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (517076): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318
softirqs last disabled at (517079): [] run_ksoftirqd kernel/softirq.c:653 [inline]
softirqs last disabled at (517079): [] run_ksoftirqd+0x94/0x100 kernel/softirq.c:645
---[ end trace f28a7de0c774a7ce ]---
WARNING: CPU: 0 PID: 3286 at kernel/events/core.c:1943 perf_group_detach+0x65f/0x970 kernel/events/core.c:1900
Modules linked in:
CPU: 0 PID: 3286 Comm: systemd-journal Tainted: G W 4.19.191-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:perf_group_detach+0x65f/0x970 kernel/events/core.c:1943
Code: b8 be ff ff ff ff 48 8d 78 20 e8 ac 69 d7 ff 85 c0 0f 85 38 fa ff ff 48 c7 c7 60 fa f0 86 e8 e9 99 fe 04 0f 0b e9 25 fa ff ff <0f> 0b e9 62 fb ff ff 49 8d 7c 24 10 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffff8881f6807e18 EFLAGS: 00010083
RAX: ffffed103b813a9b RBX: ffff8881dc6ed240 RCX: ffffe8ffffc11bd0
RDX: ffffe8ffffc11ce0 RSI: ffff8881dbc98ce0 RDI: ffff8881dc6ed458
RBP: ffff8881f6807e90 R08: 0000000000000000 R09: ffff8881dbc98ce0
R10: ffff8881dc6ed260 R11: ffffe8ffffc11ce8 R12: dffffc0000000000
R13: ffff8881dc09d2c0 R14: ffff8881f6831440 R15: ffff8881dc09d2c0
FS: 00007f04b73be8c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04b4771000 CR3: 00000001e20b2006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000010602
Call Trace:
__perf_remove_from_context+0x1a2/0x400 kernel/events/core.c:2084
event_function+0x2bb/0x3d0 kernel/events/core.c:248
remote_function kernel/events/core.c:87 [inline]
remote_function+0xff/0x180 kernel/events/core.c:67
flush_smp_call_function_queue+0x10e/0x3d0 kernel/smp.c:243
generic_smp_call_function_single_interrupt+0xe/0x20 kernel/smp.c:192
smp_call_function_single_interrupt+0xa0/0x440 arch/x86/kernel/smp.c:304
call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:916
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:kmem_cache_free+0xb0/0x290 mm/slab.c:3766
Code: 84 e6 00 00 00 41 f7 c5 00 02 00 00 0f 84 b7 00 00 00 e8 73 47 d5 ff 48 83 3d 53 08 82 06 00 0f 84 cd 01 00 00 4c 89 ef 57 9d <0f> 1f 44 00 00 4c 8b 6d 08 0f 1f 44 00 00 65 8b 05 5b 88 71 7e 83
RSP: 0018:ffff8881e2337db0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: 0000000000000007 RBX: ffff8881f652f380 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000286
RBP: ffff8881e2337dd0 R08: 0000000000000048 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881e38a4a00
R13: 0000000000000286 R14: ffffffff8140e323 R15: ffff8881e38a4a04
put_cred_rcu+0x263/0x450 kernel/cred.c:126
__put_cred+0x19b/0x200 kernel/cred.c:151
put_cred include/linux/cred.h:276 [inline]
do_faccessat+0x409/0x630 fs/open.c:438
__do_sys_access fs/open.c:449 [inline]
__se_sys_access fs/open.c:447 [inline]
__x64_sys_access+0x54/0x80 fs/open.c:447
do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f04b66799c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe588d43f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007ffe588d7420 RCX: 00007f04b66799c7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055aa8238a9a3
RBP: 00007ffe588d4540 R08: 000055aa823803e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 000055aa836288a0 R15: 00007ffe588d4a30
irq event stamp: 481186
hardirqs last enabled at (481185): [] kmem_cache_free+0x9d/0x290 mm/slab.c:3766
hardirqs last disabled at (481186): [] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (377198): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318
softirqs last disabled at (377189): [] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (377189): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412
---[ end trace f28a7de0c774a7cf ]---
list_add double add: new=ffff8881db1ca360, prev=ffff8881db1ca360, next=ffff8881f6831550.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:31!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7836 Comm: syz-executor.0 Tainted: G W 4.19.191-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid+0xaa/0xb0 lib/list_debug.c:29
Code: e8 eb a9 48 89 f7 48 89 75 e8 e8 81 eb 9e fe 48 8b 75 e8 eb bb 48 89 f2 48 89 d9 4c 89 e6 48 c7 c7 a0 63 1f 87 e8 87 a0 80 03 <0f> 0b 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 55
RSP: 0018:ffff8881f6807c70 EFLAGS: 00010082
RAX: 0000000000000058 RBX: ffff8881f6831550 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff871f6160 RDI: ffffffff89c846e0
RBP: ffff8881f6807c88 R08: ffffed103ed05079 R09: ffffed103ed05078
R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: ffff8881db1ca360
R13: ffff8881db1ca360 R14: ffff8881db1ca360 R15: ffff8881f6831558
FS: 000000000155f400(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000052c000 CR3: 00000001d2079001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
__list_add include/linux/list.h:60 [inline]
list_add_tail include/linux/list.h:93 [inline]
flexible_sched_in kernel/events/core.c:3323 [inline]
flexible_sched_in+0x5c9/0x8b0 kernel/events/core.c:3311
visit_groups_merge+0x251/0x5a0 kernel/events/core.c:3270
ctx_flexible_sched_in kernel/events/core.c:3356 [inline]
ctx_sched_in+0x2bb/0x9c0 kernel/events/core.c:3401
cpu_ctx_sched_in kernel/events/core.c:3410 [inline]
perf_event_sched_in+0x77/0x80 kernel/events/core.c:2430
ctx_resched+0x79/0xe0 kernel/events/core.c:2482
__perf_install_in_context+0x40d/0x880 kernel/events/core.c:2540
remote_function kernel/events/core.c:87 [inline]
remote_function+0xff/0x180 kernel/events/core.c:67
flush_smp_call_function_queue+0x10e/0x3d0 kernel/smp.c:243
generic_smp_call_function_single_interrupt+0xe/0x20 kernel/smp.c:192
smp_call_function_single_interrupt+0xa0/0x440 arch/x86/kernel/smp.c:304
call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:916
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:lock_release+0x44e/0x850 kernel/locking/lockdep.c:3930
Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f8 02 00 00 48 83 3d 29 82 c6 06 00 0f 84 49 02 00 00 48 8b bd 68 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 c7 04 03 00 00 00
RSP: 0018:ffff8881db727bb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: 1ffff1103b6e4f7a RCX: 1ffff1103b646d47
RDX: 1ffffffff1024021 RSI: 0000000000000001 RDI: 0000000000000286
RBP: ffff8881db727c58 R08: 0000000000000000 R09: ffffed103a0a8677
R10: ffff8881db727d28 R11: ffff8881d05433bf R12: ffff8881db2361c0
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881db2361c0
__mutex_unlock_slowpath+0x8e/0x6a0 kernel/locking/mutex.c:1200
mutex_unlock+0xd/0x10 kernel/locking/mutex.c:713
perf_event_release_kernel+0x3dc/0xc10 kernel/events/core.c:4652
perf_release+0x32/0x50 kernel/events/core.c:4679
__fput+0x249/0x7f0 fs/file_table.c:278
____fput+0x9/0x10 fs/file_table.c:309
task_work_run+0x108/0x180 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x1a9/0x200 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x413/0x4e0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x41429b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffec9ea49b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000041429b
RDX: 00000000000006db RSI: 00000000005319c8 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2bd20054
R10: 00007ffec9ea4a70 R11: 0000000000000293 R12: 00000000000003e8
R13: 000000000052bf00 R14: 000000000052bf00 R15: ffffffffffffffff
Modules linked in:
---[ end trace f28a7de0c774a7d0 ]---
RIP: 0010:__list_add_valid+0xaa/0xb0 lib/list_debug.c:29
Code: e8 eb a9 48 89 f7 48 89 75 e8 e8 81 eb 9e fe 48 8b 75 e8 eb bb 48 89 f2 48 89 d9 4c 89 e6 48 c7 c7 a0 63 1f 87 e8 87 a0 80 03 <0f> 0b 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 55
RSP: 0018:ffff8881f6807c70 EFLAGS: 00010082
RAX: 0000000000000058 RBX: ffff8881f6831550 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff871f6160 RDI: ffffffff89c846e0
RBP: ffff8881f6807c88 R08: ffffed103ed05079 R09: ffffed103ed05078
R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: ffff8881db1ca360
R13: ffff8881db1ca360 R14: ffff8881db1ca360 R15: ffff8881f6831558
FS: 000000000155f400(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000052c000 CR3: 00000001d2079001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600