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Rinit seems to panicked before userspace switching
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Description

This happens after hello, world!. The error messages are:

[kernel] hello, world!
[kernel::arch::interrupt::apic] timer register is 0b100000000001000000
     0: v=40 e=0000 i=0 cpl=3 IP=002b:0000000000000330 pc=0000000000000330 SP=0033:0000000080003ffc env->regs[R_EAX]=0000000000000000
RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000000 RDX=0000000000000000
RSI=0000000000000000 RDI=0000000000000000 RBP=0000000000000000 RSP=0000000080003ffc
R8 =0000000000000000 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000000
R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000
RIP=0000000000000330 RFL=00003206 [-----P-] CPL=3 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =002b 0000000000000000 00000000 0020fa00 DPL=3 CS64 [-R-]
SS =0033 0000000000000000 00000000 0000f200 DPL=3 DS   [-W-]
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 0000000000000000 00000000 00000000
LDT=0000 0000000000000000 0000ffff 00008200 DPL=0 LDT
TR =0038 ffffffff801e1c78 00000068 0000e900 DPL=3 TSS64-avl
GDT=     ffffffff801dd01c 00000047
IDT=     ffffffff801dd491 00000fff
CR0=80010011 CR2=0000000000000000 CR3=0000000000406000 CR4=000000b0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
CCS=0000000000000004 CCD=ffffffff801dacc0 CCO=EFLAGS  
EFER=0000000000000d01
check_exception old: 0xffffffff new 0xd
     1: v=0d e=0000 i=0 cpl=0 IP=0008:4851415251504153 pc=4851415251504153 SP=0000:ffffffff801052e0 env->regs[R_EAX]=50000dc9490d8b4c
RAX=50000dc9490d8b4c RBX=e8458b4ce0558b48 RCX=f04d8b48d85d8b48 RDX=f8458b48ffffff04
RSI=4155415441534152 RDI=4151415041575655 RBP=e8e7894854574156 RSP=ffffffff801052e0
R8 =52515350f84d8948 R9 =d04d8b48f04d8948 R10=c84d8b48e84d8948 R11=c04d8b48e04d8948
R12=b84d8b48d84d8948 R13=b04d8b48d045894c R14=c84d8948c0558948 R15=b8758948b07d8948
RIP=4851415251504153 RFL=00003086 [--S--P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0008 0000000000000000 00000000 00209a00 DPL=0 CS64 [-R-]
SS =0000 0000000000000000 00000000 00000000
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 0000000000000000 00000000 00000000
LDT=0000 0000000000000000 0000ffff 00008200 DPL=0 LDT
TR =0038 ffffffff801e1c78 00000068 0000e900 DPL=3 TSS64-avl
GDT=     ffffffff801dd01c 00000047
IDT=     ffffffff801dd491 00000fff
CR0=80010011 CR2=0000000000000000 CR3=0000000000406000 CR4=000000b0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
CCS=0000000000000038 CCD=ffffffff801dacd8 CCO=ADDQ    
EFER=0000000000000d01
check_exception old: 0xd new 0xb
     2: v=08 e=0000 i=0 cpl=0 IP=0008:4851415251504153 pc=4851415251504153 SP=0000:ffffffff801052e0 env->regs[R_EAX]=50000dc9490d8b4c
RAX=50000dc9490d8b4c RBX=e8458b4ce0558b48 RCX=f04d8b48d85d8b48 RDX=f8458b48ffffff04
RSI=4155415441534152 RDI=4151415041575655 RBP=e8e7894854574156 RSP=ffffffff801052e0
R8 =52515350f84d8948 R9 =d04d8b48f04d8948 R10=c84d8b48e84d8948 R11=c04d8b48e04d8948
R12=b84d8b48d84d8948 R13=b04d8b48d045894c R14=c84d8948c0558948 R15=b8758948b07d8948
RIP=4851415251504153 RFL=00003086 [--S--P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0008 0000000000000000 00000000 00209a00 DPL=0 CS64 [-R-]
SS =0000 0000000000000000 00000000 00000000
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 0000000000000000 00000000 00000000
LDT=0000 0000000000000000 0000ffff 00008200 DPL=0 LDT
TR =0038 ffffffff801e1c78 00000068 0000e900 DPL=3 TSS64-avl
GDT=     ffffffff801dd01c 00000047
IDT=     ffffffff801dd491 00000fff
CR0=80010011 CR2=0000000000000000 CR3=0000000000406000 CR4=000000b0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
CCS=0000000000000038 CCD=ffffffff801dacd8 CCO=ADDQ    
EFER=0000000000000d01
check_exception old: 0x8 new 0xb

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