Subject: Re: unrecognizable insn
To: Patrick Welche <>
From: Thomas Runge <>
List: current-users
Date: 10/08/2002 18:40:09
On Tue, 8 Oct 2002, Patrick Welche wrote:

> On i386 with source of Oct  7 07:36 GMT, I get
> /usr/src/tools/obj.i386/tools.NetBSD-1.6I-i386/bin/i386--netbsdelf-gcc  -ffreestanding  -pipe -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wno-uninitialized  -Di386 -I.  -I/usr/src/sys/arch -I/usr/src/sys -nostdinc -DLKM -DMAXUSERS=32 -D_KERNEL -D_KERNEL_OPT   -c /usr/src/sys/dev/pci/if_pcn.c
> /usr/src/sys/dev/pci/if_pcn.c: In function `pcn_init':
> /usr/src/sys/dev/pci/if_pcn.c:1767: internal error--unrecognizable insn:
> (insn 644 643 646 (set (reg:SI 170)
>         (unspec:SI[
>                 (const_int 512 [0x200])
>             ]  5)) -1 (nil)
>     (nil))
> cpp0: output pipe has been closed

I got such failures too, as well as others (internal compiler
errors, core dumps...).
I finally reduced my K6-2/500 to just 450 MHz and now it works.

I guess, it's a problem with the amount of memory (512 MB), the quite
old motherboard (five years ago, there weren't 80GB disks and >> 128 MB
of RAM) and the BIOS.