user_stack_backstrace-in-kernelWE**NE 上传13.77 KB 文件格式 zip 在Linux内核中,可以通过跟踪用户堆栈(backtrace)来诊断应用程序段错误(segmentation fault)和双重释放(double free)等问题。当应用程序出现这些问题时,内核会捕获相关信息并进行回溯。这包括检查程序计数器、调用堆栈以及
1 内核态:dump_stack 参考博客: http://kernel.meizu.com/2017/03/18-40-19-dump_stack.html https://blog.csdn.net/xj178926426/article/details/79235952 作用: 打印进程的栈回溯信息。 前提: 内核配置勾选上;make menuconfig -> kernel hacking--> kernel debug 什么情况使用: 1、内核发生panic、内核主动...
| stack=0x7fdc995000-0x7fdc997000 stackSize=8MB | held mutexes= kernel: __switch_to+0xb0/0xbc kernel: SyS_epoll_wait+0x288/0x364 kernel: SyS_epoll_pwait+0xb0/0x124 kernel: cpu_switch_to+0x38c/0x2258 native: #00 pc 000000000007cd8c /system/lib64/libc.so (__epoll_pwait+8) n...
[1601.334955] COMM=buserror PID=309[1601.338280] TEXT=00008000-000085c0 DATA=00009f1c-0000a018 BSS=0000a018-0000b000 [1601.345596] USER-STACK=7fb0de10 KERNEL-STACK=be829180 [1601.345596] [1601.352229] PC:0x000084ec(0x84ec)---异常点代码位置。[1601.355724] LR:0x2aae22aa(0x2aae22aa) [16...
或许大部分 kernel hacker 在阅读本篇文章之前便已经听说过 userfaultfd + setxattr 这一内核堆利用技术,亦或是自己成功利用该技术完成对内核中一些漏洞的利用(例如 CVE-2019-15666),此时看到“堆占位”这一名称或许会感到有些疑惑——因为这两个技术相结合的利用或许与“堆喷射”(heap spray)有关?
注意这里显示出了real、user和sys三个时间,这些时间与我们在 GC 日志里看到的大致相同。现在我们来看看StackOverflow上提供的关于这些时间的解释: Real is wall clock time – time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the proc...
Returns the identifier of this process’s uid. This is the kernel uid that the process is running under, which is the identity of its app-specific sandbox. It is different from myUserHandle() in that a uid identifies a specific app sandbox in a specific user. ...
Driver stack (including user space libraries, kernel module and firmware) for the Arm® Ethos™-N NPU - ARM-software/ethos-n-driver-stack
stack -Waddr-space-convert Blackfin Options -mcpu=cpu[-sirevision] -msim -momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer -mspecld-anomaly -mno-specld-anomaly -mcsync-anomaly -mno-csync-anomaly -mlow-64k -mno-low64k -mstack-check-l1 -mid-shared-library -mno-id-shared-library -...
network:version:2ethernets:enp1s0f0:dhcp4:yes Creating a User# To create a user at install time, you can add an “identity” section to your autoinstall file. In this example, we set the system’s hostname to “dgx” and create a user with the name/password of nvidia/nvidia. ...