Date: Mon, 6 Mar 2006 12:38:49 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-amd64@freebsd.org Subject: Re: SMP and IP_PREEMPTION Message-ID: <200603061238.51592.jhb@freebsd.org> In-Reply-To: <200603061349.32133.joao@matik.com.br> References: <200603061349.32133.joao@matik.com.br>
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On Monday 06 March 2006 11:49, JoaoBR wrote: > > Hi > I would like to here your opinion about a problem I may have. > > I experience sudden reboot, no panic, no message at all on SMP systems > (releng_6 up-to-date) when the kernel is compiled with > > PREEMPTION > IPI_PREEMPTION > SMP > 4BSD > > > Appearently the reboot occures when the system goes to use almost 2GB of RAM. > > I am not so sure but appearently the problem is less with ULE and seems to > disappear with ULE and without IPI_PREEMPTION and the system runs up to > almost 4Gb normally. > > The server are dedicated cache (squid) server > > Is this problem and "solution" only a impression or is there any reason or > fact some knows? I'm not aware of the problem, but I don't think IPI_PREEMPTION has been widely tested yet. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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