1.重新编译xnu 内核并使用 LLDB 调试崩溃了
堆栈
(lldb) bt
* thread #1, stop reason = breakpoint 8.1
* frame #0: 0xffffff8010eda4d0 kernel.debug`panic(str="Kernel trap at 0x%016llx, type %d=%s, registers:\nCR0: 0x%016llx, CR2: 0x%016llx, CR3: 0x%016llx, CR4: 0x%016llx\nRAX: 0x%016llx, RBX: 0x%016llx, RCX: 0x%016llx, RDX: 0x%016llx\nRSP: 0x%016llx, RBP: 0x%016llx, RSI: 0x%016llx, RDI: 0x%016llx\nR8: 0x%016llx, R9: 0x%016llx, R10: 0x%016llx, R11: 0x%016llx\nR12: 0x%016llx, R13: 0x%016llx, R14: 0x%016llx, R15: 0x%016llx\nRFL: 0x%016llx, RIP: 0x%016llx, CS: 0x%016llx, SS: 0x%016llx\nFault CR2: 0x%016llx, Error code: 0x%016llx, Fault CPU: 0x%x%s%s%s%s, PL: %d, VF: %d\n") at debug.c:800:10
frame #1: 0xffffff8010579062 kernel.debug`panic_trap(regs=0xffffff80101a5a50, pl=1, fault_result=0) at trap.c:841:2
frame #2: 0xffffff80105787cd kernel.debug`kernel_trap(state=0xffffff80101a5a40, lo_spp=0xffffff80101a5a20) at trap.c:780:2
frame #3: 0xffffff8010598b2f kernel.debug`trap_from_kernel + 38
frame #4: 0xffffff8010599f55 kernel.debug`counter_inc(counter=0x0000000000000398) at counter.c:77:4
frame #5: 0xffffff801042fdb2 kernel.debug`vm_fault_internal(map=0x0000000000000000, vaddr=288178176, caller_prot=1, change_wiring=0, wire_tag=0, interruptible=0, caller_pmap=0x0000000000000000, caller_pmap_addr=0, physpage_p=0x0000000000000000) at vm_fault.c:4008:2
frame #6: 0xffffff801042f317 kernel.debug`_vm_fault$XNU_INTERNAL(map=0x0000000000000000, vaddr=288179504, fault_type=1, change_wiring=0, wire_tag=0, interruptible=0, caller_pmap=0x0000000000000000, caller_pmap_addr=0) at vm_fault.c:3725:9
frame #7: 0xffffff80105786aa kernel.debug`kernel_trap(state=0xffffff80101a63c0, lo_spp=0xffffff80101a63a0) at trap.c:714:27
frame #8: 0xffffff8010598b2f kernel.debug`trap_from_kernel + 38
frame #9: 0xffffff80103732ab kernel.debug`thread_tid(thread=0x00000000112d3b50) at thread.c:2741:40
frame #10: 0xffffff8010ed8a98 kernel.debug`__firehose_buffer_tracepoint_reserve + 1544
frame #11: 0xffffff8010d567cd kernel.debug`_firehose_trace(stream=firehose_stream_persist, ftid=firehose_tracepoint_id_u @ 0xffffff80101a68b0, stamp=218524522623, pubdata=0xffffff80101a6ad8, publen=18, use_streaming=true) at log.c:523:7
frame #12: 0xffffff8010d5a3af kernel.debug`_os_log_actual(type=OS_LOG_TYPE_DEFAULT, format="oslog_init completed, %u chunks, %u io pages\n", dso=0xffffff8010270000, addr=0xffffff8010ee22c5, logdata="\xc5\"\xc7", logdata_sz=18, flags=_firehose_tracepoint_flags_pc_style_main_exe, driverKit=false) at log.c:382:2
frame #13: 0xffffff8010d5a074 kernel.debug`_os_log_to_log_internal(type=OS_LOG_TYPE_DEFAULT, fmt="oslog_init completed, %u chunks, %u io pages\n", args=0xffffff80101a6ed0, addr=0xffffff8010ee22c5, dso=0xffffff8010270000, driverKit=false) at log.c:439:3
frame #14: 0xffffff8010d56150 kernel.debug`_os_log_with_args_internal(oslog=0xffffff80112c3218, type=OS_LOG_TYPE_DEFAULT, format="oslog_init completed, %u chunks, %u io page
...(已截断)
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来源: 看雪论坛
原文链接: https://bbs.kanxue.com/thread-291124.htm
[原创]PerspectiveMacos-从thread_tid崩溃学习xnu thread和cpu
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