Extracting prog: 2m6.960265398s
Minimizing prog: 12m10.955614495s
Simplifying prog options: 4m6.450684953s
Extracting C: 2m22.758738112s
Simplifying C: 10m33.450979036s
extracting reproducer from 24 programs
first checking the prog from the crash report
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}}): openat$auto_gpiolib_fops_-preadv$auto
detailed listing:
executing program 0:
r0 = openat$auto_gpiolib_fops_(0xffffffffffffff9c, &(0x7f0000001380), 0x20000, 0x0)
preadv$auto(r0, &(0x7f0000002fc0)={0x0, 0x8}, 0x2, 0x5, 0x19) (fail_nth: 2)
program crashed: general protection fault in gpiolib_seq_stop
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_
detailed listing:
executing program 0:
openat$auto_gpiolib_fops_(0xffffffffffffff9c, &(0x7f0000001380), 0x20000, 0x0)
program did not crash
testing program (duration=53.056402732s, {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}}): preadv$auto
detailed listing:
executing program 0:
preadv$auto(0xffffffffffffffff, &(0x7f0000002fc0)={0x0, 0x8}, 0x2, 0x5, 0x19) (fail_nth: 2)
program did not crash
testing program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
detailed listing:
executing program 0:
r0 = openat$auto_gpiolib_fops_(0xffffffffffffff9c, &(0x7f0000001380), 0x20000, 0x0)
preadv$auto(r0, &(0x7f0000002fc0)={0x0, 0x8}, 0x2, 0x5, 0x19)
program did not crash
testing program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
detailed listing:
executing program 0:
r0 = openat$auto_gpiolib_fops_(0xffffffffffffff9c, 0x0, 0x20000, 0x0)
preadv$auto(r0, &(0x7f0000002fc0)={0x0, 0x8}, 0x2, 0x5, 0x19) (fail_nth: 2)
program did not crash
testing program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
detailed listing:
executing program 0:
r0 = openat$auto_gpiolib_fops_(0xffffffffffffff9c, &(0x7f0000001380), 0x20000, 0x0)
preadv$auto(r0, 0x0, 0x2, 0x5, 0x19) (fail_nth: 2)
program did not crash
extracting C reproducer
testing compiled C program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
program did not crash
simplifying guilty program options
testing program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
detailed listing:
executing program 0:
r0 = openat$auto_gpiolib_fops_(0xffffffffffffff9c, &(0x7f0000001380), 0x20000, 0x0)
preadv$auto(r0, &(0x7f0000002fc0)={0x0, 0x8}, 0x2, 0x5, 0x19) (fail_nth: 2)
program crashed: general protection fault in gpiolib_seq_stop
extracting C reproducer
testing compiled C program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
simplifying C reproducer
testing compiled C program (duration=53.056402732s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
testing compiled C program (duration=53.056402732s, {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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
testing compiled C program (duration=53.056402732s, {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}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
testing compiled C program (duration=53.056402732s, {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:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
testing compiled C program (duration=53.056402732s, {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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
testing compiled C program (duration=53.056402732s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_gpiolib_fops_-preadv$auto
program crashed: general protection fault in gpiolib_seq_stop
reproducing took 30m24.269583211s
repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 00007ffe40677f10 RCX: 00007f0e60451329
RDX: 0000000000000002 RSI: 0000200000002fc0 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000019 R09: 00007f0e604c0032
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f0e604bc618
R13: 00007ffe406780e8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5837 Comm: syz-executor281 Not tainted 6.14.0-syzkaller-13183-g06a22366d6a1 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5279
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003f5f9a0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802acfb4b8
RDX: 0000000000000000 RSI: ffffffff8503c46e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e58acb3 R11: 0000000000000001 R12: ffffffff8bf83ec0
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802acfb4b8
FS: 0000555589bd0380(0000) GS:ffff8881249bc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002fc0 CR3: 000000007753c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
traverse.part.0.constprop.0+0x2bd/0x640 fs/seq_file.c:131
traverse fs/seq_file.c:98 [inline]
seq_read_iter+0x932/0x12c0 fs/seq_file.c:195
seq_read+0x39e/0x4e0 fs/seq_file.c:162
full_proxy_read+0x13c/0x200 fs/debugfs/file.c:393
do_loop_readv_writev fs/read_write.c:845 [inline]
do_loop_readv_writev fs/read_write.c:833 [inline]
vfs_readv+0x6bc/0x8a0 fs/read_write.c:1018
do_preadv+0x1af/0x270 fs/read_write.c:1130
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e60451329
Code: 48 83 c4 28 c3 e8 17 1a 00 00 0f 1f 80 00 00 00 00 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:00007ffe40677f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007ffe40677f10 RCX: 00007f0e60451329
RDX: 0000000000000002 RSI: 0000200000002fc0 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000019 R09: 00007f0e604c0032
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f0e604bc618
R13: 00007ffe406780e8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5279
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003f5f9a0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802acfb4b8
RDX: 0000000000000000 RSI: ffffffff8503c46e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e58acb3 R11: 0000000000000001 R12: ffffffff8bf83ec0
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802acfb4b8
FS: 0000555589bd0380(0000) GS:ffff888124abc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b80cd93000 CR3: 000000007753c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 48 c1 ea 03 shr $0x3,%rdx
4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
8: 0f 85 98 00 00 00 jne 0xa6
e: 48 8b 9b e0 00 00 00 mov 0xe0(%rbx),%rbx
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 8d 7b 04 lea 0x4(%rbx),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction
2e: 48 89 f8 mov %rdi,%rax
31: 83 e0 07 and $0x7,%eax
34: 83 c0 03 add $0x3,%eax
37: 38 d0 cmp %dl,%al
39: 7c 04 jl 0x3f
3b: 84 d2 test %dl,%dl
3d: 75 60 jne 0x9f
3f: 8b .byte 0x8b
final repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 00007ffe40677f10 RCX: 00007f0e60451329
RDX: 0000000000000002 RSI: 0000200000002fc0 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000019 R09: 00007f0e604c0032
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f0e604bc618
R13: 00007ffe406780e8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5837 Comm: syz-executor281 Not tainted 6.14.0-syzkaller-13183-g06a22366d6a1 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5279
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003f5f9a0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802acfb4b8
RDX: 0000000000000000 RSI: ffffffff8503c46e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e58acb3 R11: 0000000000000001 R12: ffffffff8bf83ec0
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802acfb4b8
FS: 0000555589bd0380(0000) GS:ffff8881249bc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002fc0 CR3: 000000007753c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
traverse.part.0.constprop.0+0x2bd/0x640 fs/seq_file.c:131
traverse fs/seq_file.c:98 [inline]
seq_read_iter+0x932/0x12c0 fs/seq_file.c:195
seq_read+0x39e/0x4e0 fs/seq_file.c:162
full_proxy_read+0x13c/0x200 fs/debugfs/file.c:393
do_loop_readv_writev fs/read_write.c:845 [inline]
do_loop_readv_writev fs/read_write.c:833 [inline]
vfs_readv+0x6bc/0x8a0 fs/read_write.c:1018
do_preadv+0x1af/0x270 fs/read_write.c:1130
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e60451329
Code: 48 83 c4 28 c3 e8 17 1a 00 00 0f 1f 80 00 00 00 00 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:00007ffe40677f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007ffe40677f10 RCX: 00007f0e60451329
RDX: 0000000000000002 RSI: 0000200000002fc0 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000019 R09: 00007f0e604c0032
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f0e604bc618
R13: 00007ffe406780e8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5279
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003f5f9a0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802acfb4b8
RDX: 0000000000000000 RSI: ffffffff8503c46e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e58acb3 R11: 0000000000000001 R12: ffffffff8bf83ec0
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802acfb4b8
FS: 0000555589bd0380(0000) GS:ffff888124abc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b80cd93000 CR3: 000000007753c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 48 c1 ea 03 shr $0x3,%rdx
4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
8: 0f 85 98 00 00 00 jne 0xa6
e: 48 8b 9b e0 00 00 00 mov 0xe0(%rbx),%rbx
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 8d 7b 04 lea 0x4(%rbx),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction
2e: 48 89 f8 mov %rdi,%rax
31: 83 e0 07 and $0x7,%eax
34: 83 c0 03 add $0x3,%eax
37: 38 d0 cmp %dl,%al
39: 7c 04 jl 0x3f
3b: 84 d2 test %dl,%dl
3d: 75 60 jne 0x9f
3f: 8b .byte 0x8b