Date: Tue, 17 Aug 1999 13:02:06 +0400 From: "Alec Kalinin" <alec@relex.ru> To: "Mark Newton" <newton@internode.com.au> Cc: "Oleg Derevenetz" <oleg@oleg.sani-c.vrn.ru>, <freebsd-hackers@FreeBSD.ORG> Subject: Re: Probably bug with allocation memory in FreeBSD-3.2-RELEASE Message-ID: <027401bee88f$2e503b90$a34562c3@alec.relex.ru>
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Hello !
> > I think, mentioned below program probably show the bug in virtual memory
> > subsystem in FreeBSD-3.2-RELEASE. After running this program, FreeBSD
>> comes into "out of swap" state, then hungs.
>Well, yeah, that's becuase you're running it out of swap by trying to
>allocate a gigabyte of memory.
Yes. I try to modeling "out of swap" in FreeBSD-3.2-RELEASE.
> > Why i think this is bug? Because any user can hung FreeBSD, settings in
> > /etc/login.conf can't help.
>Are you sure about that? Setting datasize limits will prevent
>malloc() from doing what you're trying to make it do. Are you
>sure you're setting your login.conf settings properly?
I am sure, that setting limits in "/etc/login.conf" is not good decision. I
try to explain.
First of all, if i set limits more than swap space, one user can hung
system. But, if i set limit equal half swap space, two different users can
hung system.
Than, i don't set limits for root process. And combinantion "squid +
Netscape with java applet" from root may hung system.
While 3.2-system can't simply kill this process like 2.2.8-system? I think,
killing this process -- best solution.
Good luck,
Alec.
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