39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
# 1. gdb coredump分析
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  本文介绍ubuntu系统环境下coredump文件的分析方法。
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## 1.1. coredump文件生成路径查询
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```
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$ cat /proc/sys/kernel/core_pattern
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|/usr/share/apport/apport -p%p -s%s -c%c -d%d -P%P -u%u -g%g -- %E
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```
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**发现路径下并未生成coredump文件**
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```
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$ ulimit -a
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core file size (blocks, -c) 0 // 0表示终端未开启core dump
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data seg size (kbytes, -d) unlimited
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scheduling priority (-e) 0
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file size (blocks, -f) unlimited
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pending signals (-i) 63499
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max locked memory (kbytes, -l) 65536
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max memory size (kbytes, -m) unlimited
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open files (-n) 1024
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pipe size (512 bytes, -p) 8
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POSIX message queues (bytes, -q) 819200
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real-time priority (-r) 0
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stack size (kbytes, -s) 8192
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cpu time (seconds, -t) unlimited
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max user processes (-u) 63499
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virtual memory (kbytes, -v) unlimited
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file locks (-x) unlimited
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```
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解决：
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```
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$ ulimit -c unlimited
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```
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sudo echo /home/xiaojiazhu/project/rkipc/battery/ipc-rk1106/ipc-sdk/cmake-shell/core.%e.%p> /proc/sys/kernel/core_pattern |