Re: [LTP] [PATCH][openfile] file descriptors not cleaned up

[Garrett Cooper <yanegomi@gmail.com>]

On Tue, Oct 13, 2009 at 7:25 PM, Henry Yei <hyei@mvista.com> wrote:
> All,
>
> Here is the openfile patch without the Makefile changes as they are not needed with the new Makefile changes.
> I regenerated and tested the patch with the latest version of the ltp from CVS.
>
> I had trouble compiling LTP without autoconf 2.61 even after following instructions from the README.mk-users file to try to build without autoconf. Most of our test hosts are running autoconf 2.59. Does anyone have updated instructions?
>
>
> -----Original Message-----
> From: Garrett Cooper [mailto:yanegomi@gmail.com]
> Sent: Tuesday, October 13, 2009 12:22 PM
> To: subrata@linux.vnet.ibm.com
> Cc: Henry Yei; jpalecek@web.de; LTP Mailing List
> Subject: Re: [LTP] [PATCH][openfile] file descriptors not cleaned up
>
> On Tue, Oct 13, 2009 at 12:20 PM, Garrett Cooper <yanegomi@gmail.com> wrote:
>> On Tue, Oct 13, 2009 at 7:43 AM, Subrata Modak
>> <subrata@linux.vnet.ibm.com> wrote:
>>> On Mon, 2009-10-05 at 14:33 -0700, Henry Yei wrote:
>>>> On Wednesday 04, October 2009 04:06:46 Jiri Palecek wrote:
>>>>
>>>> Hello,
>>>>
>>>> On Wednesday 30 September 2009 04:06:46 Henry Yei wrote:
>>>> > This patch for openfile contains the following changes:
>>>> > - test output to use tst_resm functions
>>>> > - sets ups and cleans up tmp dir properly
>>>> > - closes all opened file descriptors before thread exit(fixes nfs issues on removing tmp dir)
>>>> >
>>>> > Signed-off-by: Henry Yei <hyei@mvista.com>
>>>> >
>>>> >
>>>> > This test opens multiple file descriptors to the same file. Perhaps the author meant to open file handles for separate files?
>>>>
>>>> This is suspicious, for me too. But maybe there is some logic behind opening the same file many times.
>>>>
>>>> I just have a small remark about your patch: Shouldn't you call close_files() here, too? (With a partially full fd_list array handled, of course)
>>>>
>>>> +void * threads(void* thread_id_) {
>>>> +     int thread_id = (uintptr_t) thread_id_;
>>>> +     char errmsg[80];
>>>> +     FILE *fd_list[MAXFILES];
>>>> +     int i;
>>>> +
>>>> +     /* Open files */
>>>> +     for (i = 0; i < numfiles; i++) {
>>>> +             if (debug)
>>>> +                     printf("Thread  %d : Opening file number %d \n", thread_id, i);
>>>> +             if ((fd_list[i] = fopen(filename, "rw")) == NULL) {
>>>> +                     sprintf(errmsg, "FAIL - Couldn't open file #%d", i);
>>>> +                     perror(errmsg);
>>>>
>>>>
>>>>
>>>> Jiri,
>>>>
>>>> Thanks for reviewing the patch. Yes, that was an omission on my part. I have attached an updated patch. Let me know if there are any more comments.

Hi Henry,
    You're suffering from an issue that I wanted to solve... I think
that we should be checking in autoconf'ed files (not _pre-configure'd_
files), but others object with my point of view.
    You can do it without autoconf, but the problem is that you'll
have to do a lot of hand-editing to make things work properly. Do you
want me to send you the autoconf'ed files?
HTH,
-Garrett

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