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Kernel: Dump registers and code on ring0 page fault.
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b896d4b237
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1 changed files with 8 additions and 7 deletions
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@ -211,7 +211,7 @@ void exception_14_handler(RegisterDumpWithExceptionCode& regs)
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esp = regs.esp_if_crossRing;
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}
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#ifdef PAGE_FAULT_DEBUG
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auto dump_registers_and_code = [&] {
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dbgprintf("exception code: %w\n", regs.exception_code);
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dbgprintf("pc=%w:%x ds=%w es=%w fs=%w gs=%w\n", regs.cs, regs.eip, regs.ds, regs.es, regs.fs, regs.gs);
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dbgprintf("stk=%w:%x\n", ss, esp);
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@ -229,13 +229,18 @@ void exception_14_handler(RegisterDumpWithExceptionCode& regs)
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codeptr[6],
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codeptr[7]
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);
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#endif
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};
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if (current->isRing0()) {
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dump_registers_and_code();
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current->dumpRegions();
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HANG;
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}
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#ifdef PAGE_FAULT_DEBUG
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dump_registers_and_code();
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#endif
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auto response = MM.handle_page_fault(PageFault(regs.exception_code, LinearAddress(faultAddress)));
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if (response == PageFaultResponse::ShouldCrash) {
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@ -245,11 +250,7 @@ void exception_14_handler(RegisterDumpWithExceptionCode& regs)
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regs.exception_code & 2 ? "write" : "read",
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faultAddress);
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kprintf("exception code: %w\n", regs.exception_code);
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kprintf("pc=%w:%x ds=%w es=%w fs=%w gs=%w\n", regs.cs, regs.eip, regs.ds, regs.es, regs.fs, regs.gs);
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kprintf("stk=%w:%x\n", ss, esp);
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kprintf("eax=%x ebx=%x ecx=%x edx=%x\n", regs.eax, regs.ebx, regs.ecx, regs.edx);
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kprintf("ebp=%x esp=%x esi=%x edi=%x\n", regs.ebp, esp, regs.esi, regs.edi);
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dump_registers_and_code();
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current->crash();
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} else if (response == PageFaultResponse::Continue) {
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#ifdef PAGE_FAULT_DEBUG
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