_free_base 崩溃

讨论了Visual Studio 2012调试器在连接到32位原生程序时遇到的崩溃问题。用户反馈了具体的现象,并寻求解决办法。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

https://social.msdn.microsoft.com/Forums/vstudio/en-US/a5c0aeb1-4542-405b-a9ee-9dc171995836/visual-studio-2012-debugger-crashes-attaching-to-a-32bit-native-program?forum=vsdebug
static void __init reserve_crashkernel(void) { unsigned long long crash_size, crash_base, total_mem; bool high = false; int ret; total_mem = memblock_phys_mem_size(); /* crashkernel=XM */ ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); if (ret != 0 || crash_size <= 0) { /* crashkernel=X,high */ ret = parse_crashkernel_high(boot_command_line, total_mem, &crash_size, &crash_base); if (ret != 0 || crash_size <= 0) return; high = true; } if (xen_pv_domain()) { pr_info("Ignoring crashkernel for a Xen PV domain\n"); return; } /* 0 means: find the address automatically */ if (!crash_base) { /* * Set CRASH_ADDR_LOW_MAX upper bound for crash memory, * crashkernel=x,high reserves memory over 4G, also allocates * 256M extra low memory for DMA buffers and swiotlb. * But the extra memory is not required for all machines. * So try low memory first and fall back to high memory * unless "crashkernel=size[KMG],high" is specified. */ if (!high) crash_base = memblock_find_in_range(CRASH_ALIGN, CRASH_ADDR_LOW_MAX, crash_size, CRASH_ALIGN); if (!crash_base) crash_base = memblock_find_in_range(CRASH_ALIGN, CRASH_ADDR_HIGH_MAX, crash_size, CRASH_ALIGN); if (!crash_base) { pr_info("crashkernel reservation failed - No suitable area found.\n"); return; } } else { unsigned long long start; start = memblock_find_in_range(crash_base, crash_base + crash_size, crash_size, 1 << 20); if (start != crash_base) { pr_info("crashkernel reservation failed - memory is in use.\n"); return; } } ret = memblock_reserve(crash_base, crash_size); if (ret) { pr_err("%s: Error reserving crashkernel memblock.\n", __func__); return; } if (crash_base >= (1ULL << 32) && reserve_crashkernel_low()) { memblock_free(crash_base, crash_size); return; } pr_info("Reserving %ldMB of memory at %ldMB for crashkernel (System RAM: %ldMB)\n", (unsigned long)(crash_size >> 20), (unsigned long)(crash_base >> 20), (unsigned long)(total_mem >> 20)); crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; insert_resource(&iomem_resource, &crashk_res); }整个调用逻辑
03-29
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值