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Re: Cygwin 1.7-58 with windows 2008

On Thu, 17 Mar 2016, Rashi Singhal wrote:


Date: Thu, 17 Mar 2016 16:49:22 +0530
From: Rashi Singhal <singhal.rashi@gmail.com>
To: cygwin@cygwin.com
Subject: Re: Cygwin 1.7-58 with windows 2008

Hi,


Greetings, Rashi,


I really need help/clue on this:

We have our system qualified with cygwin 1.7.0.58 and we are facing
some issue  in msgsnd/msgrcv functions.
We have got the fix of this problem but the code change is in
sysv_msg.cc ( under cygserver) by calling msleep
Any time you insert sleep calls into something means you have a timing issue and are just masking the real problem, which will probably show itself in a different way later. 

I'll defer to the Cygwin devs for real analysis, though.


We tried to download source from the path provided but getting
compilation error as we have compiled it using latest cygwin package.
Downloading the whole tool chain for that release of Cygwin might work better for you. Also, there is a specific build process for Cygwin documented on the website, that I believe someone else already replied to you about. If not, search the mail archives. 


Now our problem is ..we do not have any option left as latest cygwin
is giving us some other problem like (semaphore not getting created )

Please help us is any of the below things are possible:
1, Can we compile only cygserver.exe with changes ?


Probably.  Why not?


2. Can we get complete package and source through which we can build
cygwin 1.7.0.58?
I emailed you privately with the process to pull all of that release + source. I never heard back from you and my logs don't seem to show any access to the paths for that release. If you have further problems downloading it, please email me privately. 


I know my problem sounds very odd..But please help. We are really stuck in this.

On Fri, Mar 11, 2016 at 8:10 AM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hello.

Please help me in resolving below compilation error:
I am compiling Cygwin 1.7.0.58



make[5]: Leaving directory
`/cygwin-1.7.0-58/i686-pc-cygwin/winsup/w32api/lib/directx'
make[4]: Leaving directory `/cygwin-1.7.0-58/i686-pc-cygwin/winsup/w32api/lib'
make[3]: Leaving directory `/cygwin-1.7.0-58/i686-pc-cygwin/winsup/w32api'
make[3]: Entering directory `/cygwin-1.7.0-58/i686-pc-cygwin/winsup/cygwin'
g++ -L/cygdrive/c/cygwin/cygwin-1.7.0-58/i686-pc-cygwin/winsup
-L/cygdrive/c/cygwin/cygwin-1.7.0-58/i686-pc-cygwin/winsup/cygwin
-L/cygdrive/c/cygwin/cygwin-1.7.0-58/i686-pc-cygwin/winsup/w32api/lib
-isystem /cygdrive/c/cygwin/cygwin-1.7.0-58/winsup/include -isystem
/cygdrive/c/cygwin/cygwin-1.7.0-58/winsup/cygwin/include -isystem
/cygdrive/c/cygwin/cygwin-1.7.0-58/winsup/w32api/include
-B/cygdrive/c/cygwin/cygwin-1.7.0-58/i686-pc-cygwin/newlib/ -isystem
/cygdrive/c/cygwin/cygwin-1.7.0-58/i686-pc-cygwin/newlib/targ-include
-isystem /cygdrive/c/cygwin/cygwin-1.7.0-58/newlib/libc/include    -c
-DHAVE_CONFIG_H  -g -O2 -MMD  -Werror -fmerge-constants -ftracer
-Wall -Wstrict-aliasing -Wwrite-strings -fno-common -pipe -fbuiltin
-fmessage-length=0  -I.
-I/cygdrive/c/cygwin/cygwin-1.7.0-58/winsup/cygwin
-I/cygdrive/c/cygwin/cygwin-1.7.0-58/winsup/w32api/include
-I../../.././winsup/cygwin/config/i386
-I/usr/lib/gcc/i686-pc-cygwin/3.4.4/include -fno-rtti -fno-exceptions
-o ./_cygwin_crt0_common.o
../../.././winsup/cygwin/lib/_cygwin_crt0_common.cc

make[3]: *** [_cygwin_crt0_common.o] Error 127
make[3]: Leaving directory `/cygwin-1.7.0-58/i686-pc-cygwin/winsup/cygwin'
make[2]: *** [cygwin] Error 1
make[2]: Leaving directory `/cygwin-1.7.0-58/i686-pc-cygwin/winsup'
make[1]: *** [all-target-winsup] Error 2
make[1]: Leaving directory `/cygwin-1.7.0-58'
make: *** [all] Error 2

Please give some clue what could be missing



On Wed, Mar 9, 2016 at 4:40 PM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hi,

Thanks for sharing path.

We have downloaded source and compiled.

We are getting compilation error on cygwin stating /bin/sh:
../../.././winsup/cygwin/mkglobals_h: /usr/bin/perl: bad interpreter:
Permission denied

There is no perl of this path and even not there is any other path too.

Should we download it as separate?

Also attached makelog output with compilation error

Please help...


On Wed, Mar 9, 2016 at 1:30 PM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hi ,

We need to download Cygwin version  1.7.0-58 (with source)

Please help us from we can download old versions


On Fri, Mar 4, 2016 at 10:10 PM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hi,

Further to this we could now see that "NO MORE PROCESS" error is
displayed due to some of the process not get de-queued from memory

Our application use fork process to create child and then pass SIGUSR1
for SIGCHLD to terminate child process.

Sighandler is installed on the start of process.But this process is
not getting invoked many a times due to which child process does not
get killed.

We are working on how to recreate this using simple test case . As
this problem occurs mostly is heavy load and at random.

We are also working to take latest cygwin and check on that .

But we are getting error on SEMOPEN function as "semget , prot or table full"

Please help us .



On Tue, Feb 23, 2016 at 9:04 AM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hi ,

We have call to "msgsnd" function that fails after processing 3 to 4 messages.

We tried both Block and NO Block mechanism (IPC_NOWAIT)

Also we changes configuration of cygserver.conf .This increases
message processing to 8-10 messages.But fails after that.

Attached is cygserver.conf file for reference:



On Mon, Feb 22, 2016 at 3:20 PM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

Hi ,

Last version working with out application is 1.7.32. We tried with
this version but problem remain same.

With the latest version of cygwin (2.4.1 release) our program gives
compilation error for Yacc and LEX modules.( We are checking on this)

Please can you suggest something on EAGAIN issue


On Wed, Feb 17, 2016 at 2:14 PM, Rashi Singhal <singhal.rashi@gmail.com> wrote:

We tried with latest version also . But problem remain same


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