unexpected behaviour of malloc() on 7.0/amd64

[Pietro Cerutti]

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Andrew MacIntyre wrote:
[snip]
| In investigating a Python 2.6rc1 regression test failure on FreeBSD
| 7.0/amd64, as far as I can tell, malloc() does not return NULL when
| available memory (including swap) is exhausted - the process just gets
| KILLed.
[snip]
| The Python regression test concerned does not fail on FreeBSD 7.0/i386,
| however the C program below exhibits the unexpected behaviour on both
| 7.0/amd64 and 7.0/i386.  The C program below does behave as
| expected on FreeBSD 6.3/i386; I cannot currently test its behaviour on
| FreeBSD 6.3/amd64.
[snip]
| Is this the intended behaviour?

I can confirm something strange happening on i386/7.0-RELEASE:

| ./malloc
Killed
|

While on i386/8.0-CURRENT the behavior is as expected:
| ./malloc_test
chunks allocated: 2936
|

[snip]

|
| Thanks,
| Andrew.
|


- --
Pietro Cerutti
gahr at FreeBSD.org

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http://gahr.ch/pgp

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