1.5.18: couldn't allocate cygwin heap, Win32 error 487 (and I've already done re

[Jeremy Norbury]

I HAVE made it stop; after 4 weeks of similar hell...

I too was suffering from this problem, which started when I installed an 
additional 1gb of memory in my laptop. Many "external" commands failed 
frequently, "make" rarely worked reliably, even "ls -rtl" occasionally 
stopped. I tried the "change the heap chunk size" following the recommended 
microsoft fix and had this had no change. I was seeing this (I've copied it 
in to make this solution easier to search for) :

C:\cygwin\bin\make.exe (24556): *** couldn't allocate cygwin heap, Win32 
error 487, base 0x480000, top 0x48E000,  reserve_size 57344, allocsize 
57344, page_const 4096
     84 [main] make 9072 fork_parent: child 24556 died waiting for longjmp 
before initialization make: vfork: No such file or directory

I was reading about "setup" this morning (looking for a way to store the 
proxy name and password - which, btw, I still haven't found a solution to) 
when I reached this page:

http://www.cygwin.com/cygwin-ug-net/setup-maxmem.html

I tried it and, while 1024 didn't work for me, 2048 did! I did this:
regtool -i set /HKLM/Software/Cygnus\ Solutions/Cygwin/heap_chunk_in_mb 2048

And not a single failure since. If I change it back to 1024 or delete it, I 
get the problem back.

You have to restart bash etc...to pick this up.

I hope this helps.

Jerry Norbury
Norbury Consulting b.v.
Amsterdam


Erick Hagstrom wrote:

Hello all. I've seen quite a few messages in the archives along these
lines but have been unable to make the problem stop.

I CAN start a bash shell with no difficulty. And I can start a pdksh
shell within the bash shell with no difficulty. But when I try to make
my application I end up with this message (although occasionally I get a
Win32 error 87 instead of the 487):

<error_message>

C:\cygwin\bin\pdksh.exe (8028): *** couldn't allocate cygwin heap, Win32
error 487, base 0x480000, top 0x4AD000, reserve_size 184320, allocsize
184320, page_const 4096

5 [main] pdksh 6976 fork_parent: child 8028 died waiting for longjmp
before initialization

rox_pwd: C:/mgc/embedded/bridgepoint/mc3020/bin/rox_init_node[74]:
cannot fork - try again

</error_message>

I HAVE successfully accomplished a rebaseall from within an ash shell,
so that's not it.

I have attached my cygcheck output.

Any suggestions? Thanks in advance.





+---------------------------------+
|                                 |
| Jerry Norbury                   |
| Norbury Consulting bv.          |
| Olympus 1, 1186CB Amstelveen    |
| The Netherlands                 |
|                                 |
| Telephone : +31 6515 83145      |
|                                 |
+---------------------------------+
http://www.xs4all.nl/~norbury



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