Date: Wed, 20 Nov 2002 21:10:35 +0200 From: Petri Helenius <pete@he.iki.fi> To: David Schultz <dschultz@uclink.Berkeley.EDU> Cc: freebsd-questions@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: panic: kmem_map too small Message-ID: <3DDBDE2B.6050407@he.iki.fi> References: <0e3b01c28fc4$ff9a4ee0$862a40c1@PHE> <20021119152114.GA2228@HAL9000.homeunix.com>
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David Schultz wrote:
>Thus spake Petri Helenius <pete@he.iki.fi>:
>
>
>>I seem to get kmem_map too small panics when using large buffers with
>>bpf. Is there a tunable I should be increasing?
>>
>>
>
>Yes, increase KVA_PAGES in your kernel config.
>
>
I put in KVA_PAGES=1024
with following results on next boot:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; lapic.id = 06000000
fault virtual address = 0x1
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc01efc88
stack pointer = 0x10:0xdf0ccbcc
frame pointer = 0x10:0xdf0ccbf0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 15 (swi1: net)
trap number lastlog: Permission denied
Removing the option and recompiling kernel from the same sources makes
it work fine.
Pete
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