Extracting prog: 1m7.17437825s
Minimizing prog: 4m8.793134689s
Simplifying prog options: 0s
Extracting C: 38.832956417s
Simplifying C: 10m1.93042828s


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:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program crashed: kernel BUG in submit_bh_wbc
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)

program did not crash
testing program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
write$cgroup_int(0xffffffffffffffff, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=31.232443549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
simplifying C reproducer
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program did not crash
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=31.232443549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
reproducing took 15m56.730910295s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2714!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 290 Comm: kmmpd-loop0 Not tainted 6.1.118-syzkaller-00025-gef4fb40b87a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:submit_bh_wbc+0x4cd/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 34 c2 e6 ff e9 b0 fe ff ff e8 4a 4c 9f ff 0f 0b e8 43 4c 9f ff <0f> 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f
RSP: 0018:ffffc90000ed7c20 EFLAGS: 00010293
RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff88810ecc5100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ed7c70 R08: ffffffff81d635d0 R09: ffffed102478da2b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff1102478da2a R14: ffff888123c6d150 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05db65b438 CR3: 0000000110346000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 submit_bh+0x1d/0x30 fs/buffer.c:2755
 write_mmp_block_thawed+0x3a0/0x570 fs/ext4/mmp.c:51
 write_mmp_block+0x12b/0x2a0 fs/ext4/mmp.c:67
 kmmpd+0x263/0xa10 fs/ext4/mmp.c:246
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x4cd/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 34 c2 e6 ff e9 b0 fe ff ff e8 4a 4c 9f ff 0f 0b e8 43 4c 9f ff <0f> 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f
RSP: 0018:ffffc90000ed7c20 EFLAGS: 00010293
RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff88810ecc5100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ed7c70 R08: ffffffff81d635d0 R09: ffffed102478da2b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff1102478da2a R14: ffff888123c6d150 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05db65b438 CR3: 0000000110079000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2714!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 290 Comm: kmmpd-loop0 Not tainted 6.1.118-syzkaller-00025-gef4fb40b87a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:submit_bh_wbc+0x4cd/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 34 c2 e6 ff e9 b0 fe ff ff e8 4a 4c 9f ff 0f 0b e8 43 4c 9f ff <0f> 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f
RSP: 0018:ffffc90000ed7c20 EFLAGS: 00010293
RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff88810ecc5100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ed7c70 R08: ffffffff81d635d0 R09: ffffed102478da2b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff1102478da2a R14: ffff888123c6d150 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05db65b438 CR3: 0000000110346000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 submit_bh+0x1d/0x30 fs/buffer.c:2755
 write_mmp_block_thawed+0x3a0/0x570 fs/ext4/mmp.c:51
 write_mmp_block+0x12b/0x2a0 fs/ext4/mmp.c:67
 kmmpd+0x263/0xa10 fs/ext4/mmp.c:246
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x4cd/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 34 c2 e6 ff e9 b0 fe ff ff e8 4a 4c 9f ff 0f 0b e8 43 4c 9f ff <0f> 0b e8 3c 4c 9f ff 0f 0b e8 35 4c 9f ff 0f 0b e8 2e 4c 9f ff 0f
RSP: 0018:ffffc90000ed7c20 EFLAGS: 00010293
RAX: ffffffff81d639fd RBX: 0000000000000000 RCX: ffff88810ecc5100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ed7c70 R08: ffffffff81d635d0 R09: ffffed102478da2b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff1102478da2a R14: ffff888123c6d150 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05db65b438 CR3: 0000000110079000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400