Hello,
syzbot found the following crash on:
HEAD commit: 35c99ffa Merge tag 'for_linus' of git://git.kernel.org/pub..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=10e970f4a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=82f0809e8f0a8c87
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: [email protected]
WARNING: CPU: 1 PID: 32543 at kernel/locking/lockdep.c:734
arch_local_save_flags arch/x86/include/asm/paravirt.h:762 [inline]
WARNING: CPU: 1 PID: 32543 at kernel/locking/lockdep.c:734
arch_local_save_flags arch/x86/include/asm/paravirt.h:760 [inline]
WARNING: CPU: 1 PID: 32543 at kernel/locking/lockdep.c:734
look_up_lock_class kernel/locking/lockdep.c:725 [inline]
WARNING: CPU: 1 PID: 32543 at kernel/locking/lockdep.c:734
register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1078
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 32543 Comm: syz-executor.4 Not tainted 5.1.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
panic+0x2cb/0x65c kernel/panic.c:214
__warn.cold+0x20/0x45 kernel/panic.c:566
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:180 [inline]
fixup_bug arch/x86/kernel/traps.c:175 [inline]
do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:273
do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:292
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:734 [inline]
RIP: 0010:register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1078
Code: 00 48 89 da 4d 8b 76 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80
3c 02 00 0f 85 23 07 00 00 4c 89 33 e9 e3 f4 ff ff 0f 0b <0f> 0b e9 ea f3
ff ff 44 89 e0 4c 8b 95 50 ff ff ff 83 c0 01 4c 8b
RSP: 0018:ffff88806395f9e8 EFLAGS: 00010083
RAX: dffffc0000000000 RBX: ffff8880a947f1e0 RCX: 0000000000000000
RDX: 1ffff1101528fe3f RSI: 0000000000000000 RDI: ffff8880a947f1f8
RBP: ffff88806395fab0 R08: 1ffff1100c72bf45 R09: ffffffff8a459c80
R10: ffffffff8a0e47e0 R11: 0000000000000000 R12: ffffffff8a1235a0
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87fe4c60
__lock_acquire+0x116/0x5490 kernel/locking/lockdep.c:3673
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4302
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:175
spin_lock_bh include/linux/spinlock.h:343 [inline]
lock_sock_nested+0x41/0x120 net/core/sock.c:2917
lock_sock include/net/sock.h:1525 [inline]
inet_autobind+0x20/0x1a0 net/ipv4/af_inet.c:183
inet_dgram_connect+0x252/0x2e0 net/ipv4/af_inet.c:573
__sys_connect+0x266/0x330 net/socket.c:1840
__do_sys_connect net/socket.c:1851 [inline]
__se_sys_connect net/socket.c:1848 [inline]
__x64_sys_connect+0x73/0xb0 net/socket.c:1848
do_syscall_64+0x103/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f695f8b6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9
RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f695f8b76d4
R13: 00000000004bf1fe R14: 00000000004d04f8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at [email protected].
syzbot will keep track of this bug report. See:
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syzbot has found a reproducer for the following crash on:
HEAD commit: f49aa1de Merge tag 'for-5.2-rc1-tag' of git://git.kernel.o..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14e5b130a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=163731f8a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: [email protected]
WARNING: CPU: 1 PID: 28592 at kernel/locking/lockdep.c:734
arch_local_save_flags arch/x86/include/asm/paravirt.h:762 [inline]
WARNING: CPU: 1 PID: 28592 at kernel/locking/lockdep.c:734
arch_local_save_flags arch/x86/include/asm/paravirt.h:760 [inline]
WARNING: CPU: 1 PID: 28592 at kernel/locking/lockdep.c:734
look_up_lock_class kernel/locking/lockdep.c:725 [inline]
WARNING: CPU: 1 PID: 28592 at kernel/locking/lockdep.c:734
register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1078
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 28592 Comm: syz-executor.5 Not tainted 5.2.0-rc1+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
panic+0x2cb/0x744 kernel/panic.c:218
__warn.cold+0x20/0x4d kernel/panic.c:575
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:179 [inline]
fixup_bug arch/x86/kernel/traps.c:174 [inline]
do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:734 [inline]
RIP: 0010:register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1078
Code: 00 48 89 da 4d 8b 76 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80
3c 02 00 0f 85 23 07 00 00 4c 89 33 e9 e3 f4 ff ff 0f 0b <0f> 0b e9 ea f3
ff ff 44 89 e0 4c 8b 95 50 ff ff ff 83 c0 01 4c 8b
RSP: 0018:ffff888093d179e8 EFLAGS: 00010083
RAX: dffffc0000000000 RBX: ffff8880967cd160 RCX: 0000000000000000
RDX: 1ffff11012cf9a2f RSI: 0000000000000000 RDI: ffff8880967cd178
RBP: ffff888093d17ab0 R08: 1ffff110127a2f45 R09: ffffffff8a659d40
R10: ffffffff8a2e8440 R11: 0000000000000000 R12: ffffffff8a323030
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff88022ba0
__lock_acquire+0x116/0x5490 kernel/locking/lockdep.c:3673
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4302
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:175
spin_lock_bh include/linux/spinlock.h:343 [inline]
lock_sock_nested+0x41/0x120 net/core/sock.c:2917
lock_sock include/net/sock.h:1525 [inline]
inet_autobind+0x20/0x1a0 net/ipv4/af_inet.c:183
inet_dgram_connect+0x243/0x2d0 net/ipv4/af_inet.c:573
__sys_connect+0x264/0x330 net/socket.c:1840
__do_sys_connect net/socket.c:1851 [inline]
__se_sys_connect net/socket.c:1848 [inline]
__x64_sys_connect+0x73/0xb0 net/socket.c:1848
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2321b1ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2321b1b6d4
R13: 00000000004bf74d R14: 00000000004d0c18 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..
syzbot has bisected this bug to:
commit c0d9271ecbd891cdeb0fad1edcdd99ee717a655f
Author: Yong Zhao <[email protected]>
Date: Fri Feb 1 23:36:21 2019 +0000
drm/amdgpu: Delete user queue doorbell variables
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1433ece4a00000
start commit: f49aa1de Merge tag 'for-5.2-rc1-tag' of git://git.kernel.o..
git tree: net-next
final crash: https://syzkaller.appspot.com/x/report.txt?x=1633ece4a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1233ece4a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=163731f8a00000
Reported-by: [email protected]
Fixes: c0d9271ecbd8 ("drm/amdgpu: Delete user queue doorbell variables")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot has found a reproducer for the following issue on:
HEAD commit: 1b929c02afd3 Linux 6.2-rc1
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=145c6a68480000
kernel config: https://syzkaller.appspot.com/x/.config?x=2651619a26b4d687
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e13e32480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13790f08480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d1849f1ca322/disk-1b929c02.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/924cb8aa4ada/vmlinux-1b929c02.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8c7330dae0a0/bzImage-1b929c02.xz
The issue was bisected to:
commit c0d9271ecbd891cdeb0fad1edcdd99ee717a655f
Author: Yong Zhao <[email protected]>
Date: Fri Feb 1 23:36:21 2019 +0000
drm/amdgpu: Delete user queue doorbell variables
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1433ece4a00000
final oops: https://syzkaller.appspot.com/x/report.txt?x=1633ece4a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1233ece4a00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
Fixes: c0d9271ecbd8 ("drm/amdgpu: Delete user queue doorbell variables")
------------[ cut here ]------------
Looking for class "l2tp_sock" with key l2tp_socket_class, but found a different class "slock-AF_INET6" with the same key
WARNING: CPU: 0 PID: 7280 at kernel/locking/lockdep.c:937 look_up_lock_class+0x97/0x110 kernel/locking/lockdep.c:937
Modules linked in:
CPU: 0 PID: 7280 Comm: syz-executor835 Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:look_up_lock_class+0x97/0x110 kernel/locking/lockdep.c:937
Code: 17 48 81 fa e0 e5 f6 8f 74 59 80 3d 5d bc 57 04 00 75 50 48 c7 c7 00 4d 4c 8a 48 89 04 24 c6 05 49 bc 57 04 01 e8 a9 42 b9 ff <0f> 0b 48 8b 04 24 eb 31 9c 5a 80 e6 02 74 95 e8 45 38 02 fa 85 c0
RSP: 0018:ffffc9000b5378b8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffffffff91c06a00 RCX: 0000000000000000
RDX: ffff8880292d0000 RSI: ffffffff8166721c RDI: fffff520016a6f09
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000201 R11: 20676e696b6f6f4c R12: 0000000000000000
R13: ffff88802a5820b0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f1fd7a97700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000100 CR3: 0000000078ab4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
register_lock_class+0xbe/0x1120 kernel/locking/lockdep.c:1289
__lock_acquire+0x109/0x56d0 kernel/locking/lockdep.c:4934
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
lock_sock_nested+0x5f/0xf0 net/core/sock.c:3473
lock_sock include/net/sock.h:1725 [inline]
inet_autobind+0x1a/0x190 net/ipv4/af_inet.c:177
inet_send_prepare net/ipv4/af_inet.c:813 [inline]
inet_send_prepare+0x325/0x4e0 net/ipv4/af_inet.c:807
inet6_sendmsg+0x43/0xe0 net/ipv6/af_inet6.c:655
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xd3/0x120 net/socket.c:734
__sys_sendto+0x23a/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1fd78538b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 15 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1fd7a971f8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f1fd78f0038 RCX: 00007f1fd78538b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f1fd78f0030 R08: 0000000020000100 R09: 000000000000001c
R10: 0000000004008000 R11: 0000000000000212 R12: 00007f1fd78f003c
R13: 00007f1fd79ffc8f R14: 00007f1fd7a97300 R15: 0000000000022000
</TASK>
The regression point doesn't make sense. The kernel config doesn't
enable CONFIG_DRM_AMDGPU, so there is no way that a change in AMDGPU
could have caused this regression.
Regards,
Felix
Am 2022-12-29 um 01:26 schrieb syzbot:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 1b929c02afd3 Linux 6.2-rc1
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=145c6a68480000
> kernel config: https://syzkaller.appspot.com/x/.config?x=2651619a26b4d687
> dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e13e32480000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13790f08480000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/d1849f1ca322/disk-1b929c02.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/924cb8aa4ada/vmlinux-1b929c02.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/8c7330dae0a0/bzImage-1b929c02.xz
>
> The issue was bisected to:
>
> commit c0d9271ecbd891cdeb0fad1edcdd99ee717a655f
> Author: Yong Zhao <[email protected]>
> Date: Fri Feb 1 23:36:21 2019 +0000
>
> drm/amdgpu: Delete user queue doorbell variables
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1433ece4a00000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=1633ece4a00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=1233ece4a00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: [email protected]
> Fixes: c0d9271ecbd8 ("drm/amdgpu: Delete user queue doorbell variables")
>
> ------------[ cut here ]------------
> Looking for class "l2tp_sock" with key l2tp_socket_class, but found a different class "slock-AF_INET6" with the same key
> WARNING: CPU: 0 PID: 7280 at kernel/locking/lockdep.c:937 look_up_lock_class+0x97/0x110 kernel/locking/lockdep.c:937
> Modules linked in:
> CPU: 0 PID: 7280 Comm: syz-executor835 Not tainted 6.2.0-rc1-syzkaller #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
> RIP: 0010:look_up_lock_class+0x97/0x110 kernel/locking/lockdep.c:937
> Code: 17 48 81 fa e0 e5 f6 8f 74 59 80 3d 5d bc 57 04 00 75 50 48 c7 c7 00 4d 4c 8a 48 89 04 24 c6 05 49 bc 57 04 01 e8 a9 42 b9 ff <0f> 0b 48 8b 04 24 eb 31 9c 5a 80 e6 02 74 95 e8 45 38 02 fa 85 c0
> RSP: 0018:ffffc9000b5378b8 EFLAGS: 00010082
> RAX: 0000000000000000 RBX: ffffffff91c06a00 RCX: 0000000000000000
> RDX: ffff8880292d0000 RSI: ffffffff8166721c RDI: fffff520016a6f09
> RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
> R10: 0000000080000201 R11: 20676e696b6f6f4c R12: 0000000000000000
> R13: ffff88802a5820b0 R14: 0000000000000000 R15: 0000000000000000
> FS: 00007f1fd7a97700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000020000100 CR3: 0000000078ab4000 CR4: 00000000003506f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> <TASK>
> register_lock_class+0xbe/0x1120 kernel/locking/lockdep.c:1289
> __lock_acquire+0x109/0x56d0 kernel/locking/lockdep.c:4934
> lock_acquire kernel/locking/lockdep.c:5668 [inline]
> lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
> __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
> _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
> spin_lock_bh include/linux/spinlock.h:355 [inline]
> lock_sock_nested+0x5f/0xf0 net/core/sock.c:3473
> lock_sock include/net/sock.h:1725 [inline]
> inet_autobind+0x1a/0x190 net/ipv4/af_inet.c:177
> inet_send_prepare net/ipv4/af_inet.c:813 [inline]
> inet_send_prepare+0x325/0x4e0 net/ipv4/af_inet.c:807
> inet6_sendmsg+0x43/0xe0 net/ipv6/af_inet6.c:655
> sock_sendmsg_nosec net/socket.c:714 [inline]
> sock_sendmsg+0xd3/0x120 net/socket.c:734
> __sys_sendto+0x23a/0x340 net/socket.c:2117
> __do_sys_sendto net/socket.c:2129 [inline]
> __se_sys_sendto net/socket.c:2125 [inline]
> __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
> do_syscall_x64 arch/x86/entry/common.c:50 [inline]
> do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
> entry_SYSCALL_64_after_hwframe+0x63/0xcd
> RIP: 0033:0x7f1fd78538b9
> Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 15 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 b8 ff ff ff f7 d8 64 89 01 48
> RSP: 002b:00007f1fd7a971f8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
> RAX: ffffffffffffffda RBX: 00007f1fd78f0038 RCX: 00007f1fd78538b9
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
> RBP: 00007f1fd78f0030 R08: 0000000020000100 R09: 000000000000001c
> R10: 0000000004008000 R11: 0000000000000212 R12: 00007f1fd78f003c
> R13: 00007f1fd79ffc8f R14: 00007f1fd7a97300 R15: 0000000000022000
> </TASK>
>