In <20000325013345.A25723@vestdata.no> Ragnar Kjœrstad (kernel@ragnark.vestdata.no) wrote:
> On Fri, Mar 24, 2000 at 11:22:40PM +0000, Mark Zealey wrote:
>> > If an application allocates a large amount of memory and then
>> > does not use it, is the app not broken as designed? I say FIX
>> > THE APPLICATION!
>>
>> What about malicious users, viruses etc... I don't think that it's right
>> to have a badly designed program bring down the entire system.
> That's not what he suggested. He suggested that malloc should fail if
> there is not enough memory/swap.
> To me it sounds like a good idea. An important process (like syslog) can make
> sure it will not be killed by just mallocing the memory it needs on
> startup.
You CAN do this from userspace. Not even changes in [g]libc are needed. Just
use calloc instead of malloc ...
P.S. And it'll not change anything significally: task still can be killed when
stack can not be expanded (and no, to reserve 8MiB of RAM for each and every
app is BAD idea).
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This archive was generated by hypermail 2b29 : Fri Mar 24 2000 - 22:28:08 EST