Child Cygheap Win32 Error
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Couldn't Commit Memory For Cygwin Heap, Win32 Error 0
0 up vote 267 down vote favorite 63 Git Extensions: Everything was working fine until yesterday. But suddenly I am get this error when I try to pull some repositories using git extensions C:\Program Files\Git\bin\git.exe pull --progress "origin" Done 0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487 AllocationBase 0x0, BaseAddress 0x68560000, RegionSize 0x390000, State 0x10000 C:\Program Files\Git\bin\sh.exe: *** Couldn't reserve space for cygwin's heap, Win32 error couldn't reserve space for cygwin's heap windows 10 0 It is happening for all the repositories which I have cloned. But, my git bash is working fine. I don't have any idea what is going on. Any idea as to why this is happening? git cygwin git-extensions share|improve this question asked Aug 29 '13 at 5:33 Uchia Itachi 2,6902915 3 Cygwin is weird and uses persistent shared memory sections. Have you tried rebooting your system? –Greg Hewgill Aug 29 '13 at 5:38 @GregHewgill: Haven't rebooted since few days. Will do it right away. –Uchia Itachi Aug 29 '13 at 5:40 1 @GregHewgill: It worked out. Thanks, maybe if you post it as an answer it will be helpful for others too. –Uchia Itachi Aug 29 '13 at 5:58 Just wanted to say that this bug isn't specific to git and on bad days cygwin will crash on any executable in the same way for no apparent reason. –meneldal Jun 9 '15 at 5:22 add a comment| 11 Answers 11 active oldest votes up vote 171 down vote accepted Cygwin uses persistent shared memory sections, which can on occasion become corrupted. The symptom of this is that some Cygwin programs begin to fail, but other applications are unaffected. Since these
error 487 To: cygwin at cygwin dot com Subject: Re: problem with heap, win32 error 487 From: Thorsten Clevorn
Msys Rebase
I am trying to run a simulation in C on my Win2K-machine (the simulation > > > > runs perfectly
Couldn T Allocate Cygwin Heap
on a Linux-PC) > > The problem seems to be with the memory rquirements. > > With certain parameters, I get some huge > > 3-dimensional arrays that require like 20-40MB RAM. > > http://stackoverflow.com/questions/18502999/git-extensions-win32-error-487-couldnt-reserve-space-for-cygwins-heap-win32 When I have a size of about 22MB the simulation works fine, when I > > increase the array size by a factor of ~1.33 (should then still be below > > > > but close to 32MB) it doesn't start with the error message > > C:\cygwin\home\clevorn\wlan15\Main.exe: *** Couldn't reserve space for > > cygwin's heap (0x20030000) in child, cygheap, Win32 error 487 > > > > https://www.cygwin.com/ml/cygwin/2001-07/msg00753.html I tried two solutions posted in the mailing list for similiar problems: > > > > first: > > the "gcc -Wl,--heap,50000000,--stack,--50000000 ..." solution > > here the simulation fails at small array sizes too. > > > > second: > > the "gcc -mno-cygwin ..." solution > > here the program does start, but the only thing that happens is, if you > > look in the task manager, the process slowly "collects" memory for about > > > > 90 seconds until it recaches 32MB (33xxxkB) and than the process crashes > > > > with the windows message " the exception unknown software exception > > (0xc00000fd) occured in the application at location 0x6104b9ef". > > As -mno-cygwin uses native M$ libraries it seems likely that the problem > is not of cygwin's making. > Does it work when compiled with MSVC ? > I tried that. It works fine without the arrays (simulation size ~2MB), but as soon as you use even the smaller arrays (that worked with cygwin) it fails. The error message (the same one as above "unknown software exception (0xc00000fd)") pops up immediatly, the process doesn't seem to "collect" memory. When compiling with M
Re: Windows XP and cygwin's heap From: Christopher Faylor