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Subject:	Re: Random "child_info_fork::abort:"
To:	cygwin AT cygwin DOT com
References:	<85b945fb-0b5f-e2b3-b899-99176d6e4da2 AT yandex DOT ru> <d879b90e-70b4-2b08-5c5b-3faccd89365b AT SystematicSw DOT ab DOT ca> <d4735765-890e-a34b-93ee-d17b9c102a9d AT yandex DOT ru> <fb13f38f-2d08-d575-f85a-2dead5c56c0b AT yandex DOT ru> <ad9ab025-b9bb-6600-0160-462e4794d270 AT yandex DOT ru> <36c231ad-6795-91e8-5afc-44ea1dfa17f1 AT yandex DOT ru> <83466d2f-896a-d512-1251-fbbbb225e7d6 AT yandex DOT ru>
From:	Evgeny Grin <k2k AT yandex DOT ru>
Openpgp:	id=289FE99E138CF6D473A3F0CFBF7AC4A5EAC2BAF4
Message-ID:	<ee38be61-1da5-c980-cfa4-8b888f2ae6a5@yandex.ru>
Date:	Thu, 13 Oct 2016 23:28:58 +0300
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On 13.10.2016 19:58, Evgeny Grin wrote:
> On 13.10.2016 18:24, Evgeny Grin wrote:
> 
> What I got from strace (typical output):
> 
>  649705 [main] mandb 6288 child_info::sync: n 2, waiting for
> subproc_ready(0x280) and child process(0x1CC)
>    6358 [main] mandb 7888 child_info_fork::abort:
> T:\cygwin64\bin\cyggdbm-4.dll: Loaded to different address:
> parent(0x1FFFC510000) != child(0x150000)
> --- Process 7888 created
> --- Process 7888 loaded C:\Windows\System32\ntdll.dll at 00007FFE2FF70000
> --- Process 7888 loaded C:\Windows\System32\kernel32.dll at 00007FFE2D600000
> --- Process 7888 loaded C:\Windows\System32\KernelBase.dll at
> 00007FFE2C730000
> --- Process 7888 thread 912 created
> --- Process 7888 thread 10792 created
> --- Process 7888 loaded T:\cygwin64\bin\cygmandb-2-7-5.dll at
> 000001FFFB8F0000
> --- Process 7888 loaded T:\cygwin64\bin\cygwin1.dll at 0000000180040000
> --- Process 7888 loaded T:\cygwin64\bin\cygintl-8.dll at 00000003FBB90000
> --- Process 7888 thread 14024 created
> --- Process 7888 loaded T:\cygwin64\bin\cygiconv-2.dll at 00000003FBBF0000
> --- Process 7888 loaded T:\cygwin64\bin\cygpipeline-1.dll at
> 000001FFFB470000
> --- Process 7888 loaded T:\cygwin64\bin\cygman-2-7-5.dll at 000001FFFB900000
> --- Process 7888 loaded T:\cygwin64\bin\cyggdbm-4.dll at 0000000000150000
> --- Process 7888 loaded T:\cygwin64\bin\cygman-2-7-5.dll at 0000000000170000
> --- Process 7888 unloaded DLL at 0000000000170000
> --- Process 7888 loaded T:\cygwin64\bin\cygz.dll at 000001FFFACF0000
> --- Process 7888 loaded T:\cygwin64\bin\cyggdbm-4.dll at 000001FFFC510000
> --- Process 7888 unloaded DLL at 000001FFFC510000
>    6358 [main] mandb 7888 child_info_fork::abort:
> T:\cygwin64\bin\cyggdbm-4.dll: Loaded to different address:
> parent(0x1FFFC510000) != child(0x150000)
> --- Process 7888 thread 14024 exited with status 0x800000
> --- Process 7888 thread 10144 exited with status 0x800000
> --- Process 7888 thread 10792 exited with status 0x800000
> --- Process 7888 exited with status 0x800000
>  663649 [main] mandb 6288 child_info::sync: pid 7888, WFMO returned 1,
> exit_code 0x800000, res 0
>  663743 [main] mandb 6288 sig_send: sendsig 0xD8, pid 6288, signal -73,
> its_me 1
>  663771 [main] mandb 6288 sig_send: wakeup 0x2EC
>  663800 [main] mandb 6288 sig_send: Waiting for pack.wakeup 0x2EC
>  663840 [sig] mandb 6288 wait_sig: signalling pack.wakeup 0x2EC
>  663886 [main] mandb 6288 sig_send: returning 0x0 from sending signal -73
> mandb: fork failed: Resource temporarily unavailable
> 
> 
> The cyggdbm-4.dll is loaded two times: at 0x150000 and at 0x1FFFC510000,
> but for some reason unloaded from 0x1FFFC510000.
> This looks like a bug in cygwin.
> 

Incorrect cygwin dll unloaded:

 837063 [main] mandb 5504 child_info::sync: n 2, waiting for
subproc_ready(0x10C) and child process(0x1E4)
--- Process 736 created
--- Process 736 loaded C:\Windows\System32\ntdll.dll at 00007FFE2FF70000
--- Process 736 loaded C:\Windows\System32\kernel32.dll at 00007FFE2D600000
--- Process 736 loaded C:\Windows\System32\KernelBase.dll at
00007FFE2C730000
--- Process 736 thread 8588 created
--- Process 736 thread 14860 created
--- Process 736 loaded T:\cygwin64\bin\cyggdbm-4.dll at 000001FFFC510000
--- Process 736 thread 10128 created
--- Process 736 loaded T:\cygwin64\bin\cygmandb-2-7-5.dll at
000001FFFB8F0000
--- Process 736 loaded T:\cygwin64\bin\cygiconv-2.dll at 00000003FBBF0000
--- Process 736 loaded T:\cygwin64\bin\cygintl-8.dll at 00000003FBB90000
--- Process 736 loaded T:\cygwin64\bin\cygpipeline-1.dll at 000001FFFB470000
--- Process 736 loaded T:\cygwin64\bin\cygman-2-7-5.dll at 000001FFFB900000
--- Process 736 loaded T:\cygwin64\bin\cygwin1.dll at 0000000180040000
--- Process 736 loaded T:\cygwin64\bin\cygwin1.dll at 0000000000E50000
--- Process 736 loaded T:\cygwin64\bin\cygwin1.dll at 00000000019D0000
--- Process 736 loaded T:\cygwin64\bin\cygwin1.dll at 0000000001410000
--- Process 736 loaded T:\cygwin64\bin\cygz.dll at 000001FFFACF0000
--- Process 736 unloaded DLL at 00000000019D0000
--- Process 736 unloaded DLL at 0000000001410000
--- Process 736 unloaded DLL at 0000000180040000
      2 [main] mandb (736) t:\cygwin64\bin\mandb.exe: *** fatal error -
cygheap base mismatch detected - 0x1802FC408/0x110C408.


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