Date: Thu, 25 Oct 2007 19:20:39 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Attila Nagy <bra@fsn.hu> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS and disk naming change (ex. da0->da4) Message-ID: <20071025172039.GA5172@garage.freebsd.pl> In-Reply-To: <4720C8C5.2040909@fsn.hu> References: <471F5B46.9050106@fsn.hu> <20071024155723.GA1431@garage.freebsd.pl> <47208FC8.7060203@fsn.hu> <20071025151004.GA4511@garage.freebsd.pl> <4720C8C5.2040909@fsn.hu>
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On Thu, Oct 25, 2007 at 06:48:05PM +0200, Attila Nagy wrote:
> On 10/25/07 17:10, Pawel Jakub Dawidek wrote:
> >>panic: kmem_malloc(131072): kmem_map too small: 335319040 total allocated
> >>cpuid = 0
> >>Uptime: 18m22s
> >>Physical memory: 1015 MB
> >>Dumping 372 MB: 357 341 325 309 293 277 261 245 229 213 197 181 165 149
> >>133 117 101 85 69 53 37 21 5
> >>
> >>#0 doadump () at pcpu.h:195
> >>195 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
> >>
> >>I've tried to lower vfs.zfs.arc_max first to 32, then 16 MB, but the
> >>panics still occur.
> >>
> >
> >Have you tried the patch I posted some weeks ago?
> >
> > http://people.freebsd.org/~pjd/patches/vm_kern.c.2.patch
> >
> Umm, no, not until now.
>
> The result is the same:
> Unread portion of the kernel message buffer:
> panic: kmem_malloc(131072): kmem_map too small: 335331328 total allocated
> cpuid = 0
> Uptime: 15m25s
> Physical memory: 1015 MB
> Dumping 371 MB: 356 340 324 308 292 276 260 244 228 212 196 180 164 148
> 132 116 100 84 68 52 36 20 4
>
> #0 doadump () at pcpu.h:195
> 195 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
>
> This is with the default settings, so:
> vm.kmem_size_max: 335544320
> vm.kmem_size: 335544320
One more thing. Can you add:
vm.kmem_size=629145600
vm.kmem_size_max=629145600
to your /boot/loader.conf, but don't touch any other settings (ie. don't
tune maximum number of vnodes, ARC size, etc.), let ZFS to autotune
them.
--
Pawel Jakub Dawidek http://www.wheel.pl
pjd@FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!
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