google 的题（测试题） - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>JobHunting - 待字闺中

google 的题（测试题）

google 的题（测试题）# JobHunting - 待字闺中

d*o2012-05-11 07:05

1 楼

讨论一下
You are given a the source to a application which is crashing when run.
After running it 10 times in a debugger, you find it never crashes in the
same place. The application is single threaded, and uses only the C standard
library. What programming errors could be causing this crash? How would you
test each one?

S*I2012-05-11 07:05

2 楼

some time related events?

standard
you

【在 d****o 的大作中提到】

: 讨论一下
: You are given a the source to a application which is crashing when run.
: After running it 10 times in a debugger, you find it never crashes in the
: same place. The application is single threaded, and uses only the C standard
: library. What programming errors could be causing this crash? How would you
: test each one?

s*a2012-05-11 07:05

3 楼

1.time related events (as above)
2. un-intialized memory, or array index overflow?
what else?

S*I2012-05-11 07:05

4 楼

more general version of 2: stack corruption, or memory leak

【在 s****a 的大作中提到】

: 1.time related events (as above)
: 2. un-intialized memory, or array index overflow?
: what else?

h*l2012-05-11 07:05

5 楼

random（）

【在 s****a 的大作中提到】

: 1.time related events (as above)
: 2. un-intialized memory, or array index overflow?
: what else?

x*12012-05-11 07:05

6 楼

多数是初始化问题。 -g 能过， without 就过不了。
-O 能过， -O3过不了。差不多吧

h*62012-05-11 07:05

7 楼

会不会是内存的问题，诸如越界访问，内存未释放之类的。

y*u2012-05-11 07:05

8 楼

time related events are mostly in multi-threads
Mostly possible: variable non intialized, or invalid pointer. Also, in
debugger mod, variable in reg are mostly pushed into memory

【在 s****a 的大作中提到】

: 1.time related events (as above)
: 2. un-intialized memory, or array index overflow?
: what else?