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Subject:	Re: OS hang when multi-process build fail
To:	cygwin AT cygwin DOT com
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	<a42a1673-83fd-d059-77fe-181cd9c5ab22 AT gmail DOT com>
From:	Roumen Petrov <bugtrack AT roumenpetrov DOT info>
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Date:	Mon, 6 Dec 2021 20:13:34 +0200
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Hello,

Please find some details from test today below.
Marco Atzeri wrote:
> On 04.12.2021 09:51, Roumen Petrov wrote:
>> Hello Cygwin users,
>>
>> On non regular basis I would like to perform regression test of recent pkix-ssh version with recent openssl release.
>> In this case is was openssl master branch now release as 3.0.
>>
>> The problem is that with current cygwin packages gcc make and etc. openssl build with "num of cpu + 1" processes fail with communication error.
>> Issue is that in such case operation system is unusable.  It respond on mouse events but build process in cygwin console cannot be canceled by keyboard interrupt signal (crtl+c).  Also cygwin console window cannot be closed as well. More over "task manager" and etc cannot be started and I must shutdown OS - [power]  button works.
>
> That is strange
Yes!

It seems to me network related program stop to work immediately. Existing windows could be switched but no new window.


>>
>> Builds were run  in cygwin console without administrative rights.
>>
>> It seems to me current cygwin release has issue with inter-process communication, for instance in setup program as well.
>
> is cygserver running ?

$ sc  query  | grep -i cyg

Remark: empty list


More details about system:

$ uname -a

CYGWIN_NT-10.0 .... 3.3.2(0.341/5/3) 2021-11-08 16:55 x86_64 Cygwin


$ systeminfo.exe
....
OS Name:                   Microsoft Windows 10 Enterprise
OS Version:                10.0.19042 N/A Build 19042
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
....


$ cat /proc/cpuinfo

....
processor       : 7
vendor_id       : AuthenticAMD
cpu family      : 23
model           : 17
model name      : AMD Ryzen 5 PRO 2500U w/ Radeon Vega Mobile Gfx
stepping        : 0
....


$ gcc --version -v
Using built-in specs.
COLLECT_AS_OPTIONS='--version'
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/11/lto-wrapper.exe
gcc (GCC) 11.2.0


---- OpenSSL 3.0 bootstrap ----
./Configure Cygwin-x86_64

---- make -j 9 ----
....
gcc  -I. -Iinclude -Iproviders/common/include -Iproviders/implementations/include  -DAES_ASM -DBSAES_ASM -DCMLL_ASM -DECP_NISTZ256_ASM -DGHASH_ASM -DKECCAK1600_ASM -DMD5_ASM -DOPENSSL_BN_ASM_GF2m -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_CPUID_OBJ -DOPENSSL_IA32_SSE2 -DPOLY1305_ASM -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DVPAES_ASM -DWHIRLPOOL_ASM -DX25519_ASM  -Wall -O3 -DTERMIOS -DL_ENDIAN -DOPENSSL_PIC -DOPENSSLDIR="\"/usr/local/ssl\"" -DENGINESDIR="\"/usr/local/lib/engines-3\"" -DMODULESDIR="\"/usr/local/lib/ossl-modules\"" -DOPENSSL_BUILDING_OPENSSL -DNDEBUG  -MMD -MF crypto/cms/libcrypto-lib-cms_rsa.d.tmp -MT crypto/cms/libcrypto-lib-cms_rsa.obj -c -o crypto/cms/libcrypto-lib-cms_rsa.obj crypto/cms/cms_rsa.c
       0 [main] make 386 child_info::sync: wait failed, pid 22360, Win32 error 0
    5614 [main] make 386 dofork: child -1 - forked process 22360 died unexpectedly, retry 0, exit code 0x8, errno 11
make[1]: *** [Makefile:14242: crypto/cms/libcrypto-lib-cms_enc.obj] Error 127
make[1]: *** Waiting for unfinished jobs....
---- ctrl+c ----
make[1]: *** Deleting file 'crypto/cms/libcrypto-lib-cms_err.obj'
make[1]: *** [Makefile:14288: crypto/cms/libcrypto-lib-cms_lib.obj] Interrupt
make[1]: *** [Makefile:14272: crypto/cms/libcrypto-lib-cms_io.obj] Interrupt
[no prompt]

Remark: now error is not communication related.


[SNIP]


Regards,
Roumen

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