On Tue, Jan 26, 2010 at 9:16 PM, Yasuaki Ishimatsu
<[email protected]> wrote:
> Hi all
>
> When the aio_suspend/3-1.test ran, SIGSEGV occured with following message
> on my x86_64 box.
>
> ---
> /bin/sh: line 38: 10675 Segmentation fault ./t0 240
> conformance/interfaces/aio_suspend/3-1.test
>> $COMPLOG 2>&1
> ---
>
> This test does not initialize a list[1] array as follows.
>
> ---
> 40 int main()
> ...
> 88 list[0] = NULL;
> 89 list[2] = &aiocb[0];
> 90 list[3] = NULL;
> 91 list[4] = NULL;
> 92 list[5] = &aiocb[1];
> 93 list[6] = &aiocb[2];
> 94 list[7] = NULL;
> ...
> ---
>
> So, list[1] holds a strange value. Since aio_suspend() uses this value as
> address,
> SIGSEGV occurred.
>
> When applying this patch, this test succeeds as follows.
>
> ---
> conformance/interfaces/aio_suspend/3-1: execution: PASS
> ---
>
> Signed-off-by: Yasuaki Ishimatsu <[email protected]>
>
> Index:
> ltp-2010-01-27/testcases/open_posix_testsuite/conformance/interfaces/aio_suspend/3-1.c
> ===================================================================
> ---
> ltp-2010-01-27.orig/testcases/open_posix_testsuite/conformance/interfaces/aio_suspend/3-1.c
> 2010-01-27 11:44:30.000000000 +0900
> +++
> ltp-2010-01-27/testcases/open_posix_testsuite/conformance/interfaces/aio_suspend/3-1.c
> 2010-01-27 11:45:23.000000000 +0900
> @@ -82,6 +82,7 @@ int main()
> }
>
> list[0] = NULL;
> + list[1] = NULL;
> list[2] = &aiocb[0];
> list[3] = NULL;
> list[4] = NULL;
Wouldn't it just be better to memset(&list, 0, sizeof(list)) the
array and just set that one array value to &aiocb[0]? Seems like a
much better idea...
Thanks,
-Garrett
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