Extracting prog: 6m35.883869251s
Minimizing prog: 1h4m31.245267172s
Simplifying prog options: 17m0.250215942s
Extracting C: 5m5.854238319s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-open-mount$9p_fd-syz_clone
detailed listing:
executing program 0:
syz_open_procfs(0x0, 0x0)
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-open-mount$9p_fd-syz_clone
detailed listing:
executing program 0:
syz_open_procfs(0x0, 0x0)
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: BUG: MAX_LOCKDEP_KEYS too low!
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-open-mount$9p_fd
detailed listing:
executing program 0:
syz_open_procfs(0x0, 0x0)
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program crashed: BUG: MAX_LOCKDEP_KEYS too low!
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-open
detailed listing:
executing program 0:
syz_open_procfs(0x0, 0x0)
open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-mount$9p_fd
detailed listing:
executing program 0:
syz_open_procfs(0x0, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {}, 0x2c, {}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program crashed: general protection fault in swap_reclaim_full_clusters
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(0x0, 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, 0x0, &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', 0x0, 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[{@dfltgid}, {@uname={'uname', 0x3d, 'msize'}}, {@cache_none}, {@privport}], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, 0x0)

program did not crash
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}, 0x2c, {[], [{@fowner_eq}, {@dont_appraise}, {@euid_gt}]}})

program crashed: general protection fault in swap_reclaim_full_clusters
testing program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}})

program crashed: general protection fault in swap_reclaim_full_clusters
extracting C reproducer
testing compiled C program (duration=8m4.485309751s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=8m4.485309751s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}})

program crashed: general protection fault in swap_reclaim_full_clusters
extracting C reproducer
testing compiled C program (duration=8m4.485309751s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=8m4.485309751s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open-mount$9p_fd
detailed listing:
executing program 0:
r0 = open(&(0x7f0000000040)='./bus\x00', 0x1612c2, 0x0)
mount$9p_fd(0x0, &(0x7f00000002c0)='./bus\x00', &(0x7f0000000300), 0x804840, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r0}})

program did not crash
reproducing took 1h33m14.043291627s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 3 UID: 0 PID: 6344 Comm: kworker/3:5 Not tainted 6.12.0-rc6-syzkaller-00272-gda4373fbcf00 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events swap_reclaim_work
RIP: 0010:__list_del_entry_valid_or_report+0x20/0x1c0 lib/list_debug.c:49
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 fe 48 83 c7 08 48 83 ec 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 19 01 00 00 48 89 f2 48 8b 4e 08 48 b8 00 00 00
RSP: 0018:ffffc90003f97c28 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802ca72078
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff961db3f8 R12: dffffc0000000000
R13: ffffffffffffffb8 R14: ffff88802ca72000 R15: ffffc90003b90000
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8799fc9780 CR3: 000000003713c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_move_tail include/linux/list.h:310 [inline]
 swap_reclaim_full_clusters+0x109/0x460 mm/swapfile.c:748
 swap_reclaim_work+0x2e/0x40 mm/swapfile.c:779
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x20/0x1c0 lib/list_debug.c:49
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 fe 48 83 c7 08 48 83 ec 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 19 01 00 00 48 89 f2 48 8b 4e 08 48 b8 00 00 00
RSP: 0018:ffffc90003f97c28 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802ca72078
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff961db3f8 R12: dffffc0000000000
R13: ffffffffffffffb8 R14: ffff88802ca72000 R15: ffffc90003b90000
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8799fc9780 CR3: 000000003713c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	f3 0f 1e fa          	endbr64
   e:	48 89 fe             	mov    %rdi,%rsi
  11:	48 83 c7 08          	add    $0x8,%rdi
  15:	48 83 ec 18          	sub    $0x18,%rsp
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 19 01 00 00    	jne    0x14d
  34:	48 89 f2             	mov    %rsi,%rdx
  37:	48 8b 4e 08          	mov    0x8(%rsi),%rcx
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 3 UID: 0 PID: 6344 Comm: kworker/3:5 Not tainted 6.12.0-rc6-syzkaller-00272-gda4373fbcf00 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events swap_reclaim_work
RIP: 0010:__list_del_entry_valid_or_report+0x20/0x1c0 lib/list_debug.c:49
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 fe 48 83 c7 08 48 83 ec 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 19 01 00 00 48 89 f2 48 8b 4e 08 48 b8 00 00 00
RSP: 0018:ffffc90003f97c28 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802ca72078
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff961db3f8 R12: dffffc0000000000
R13: ffffffffffffffb8 R14: ffff88802ca72000 R15: ffffc90003b90000
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8799fc9780 CR3: 000000003713c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_move_tail include/linux/list.h:310 [inline]
 swap_reclaim_full_clusters+0x109/0x460 mm/swapfile.c:748
 swap_reclaim_work+0x2e/0x40 mm/swapfile.c:779
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x20/0x1c0 lib/list_debug.c:49
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 fe 48 83 c7 08 48 83 ec 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 19 01 00 00 48 89 f2 48 8b 4e 08 48 b8 00 00 00
RSP: 0018:ffffc90003f97c28 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802ca72078
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff961db3f8 R12: dffffc0000000000
R13: ffffffffffffffb8 R14: ffff88802ca72000 R15: ffffc90003b90000
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8799fc9780 CR3: 000000003713c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	f3 0f 1e fa          	endbr64
   e:	48 89 fe             	mov    %rdi,%rsi
  11:	48 83 c7 08          	add    $0x8,%rdi
  15:	48 83 ec 18          	sub    $0x18,%rsp
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 19 01 00 00    	jne    0x14d
  34:	48 89 f2             	mov    %rsi,%rdx
  37:	48 8b 4e 08          	mov    0x8(%rsi),%rcx
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)