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Re: kern/59776: 11.0_BETA Kernel from 15.11.25 crashes on MVME17x Board



The following reply was made to PR kern/59776; it has been noted by GNATS.

From: Jason Thorpe <thorpej%me.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost,
 netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/59776: 11.0_BETA Kernel from 15.11.25 crashes on MVME17x
 Board
Date: Thu, 20 Nov 2025 07:40:04 +0100

 > On Nov 19, 2025, at 8:25=E2=80=AFPM, denis%h3q.com@localhost wrote:
 >=20
 > [   1.0096440] panic: Illegal instruction
 > [   1.0096440] rebooting...
 >=20
 > checking the faulty mnemonic memory position this is listed:
 >=20
 > 177-Bug>ds 17bed4:3
 > 0017BED4 4C100C01          MULS.L      (A0),D1:D0
 > 0017BED8 E388              LSL.L       #$1,D0
 > 0017BEDA E591              ROXL.L      #$2,D1
 > 177-Bug>
 >=20
 > the mnemonic MULS.L (64bit product) crashes the MC68060 CPU because =
 that is an illegal opcode UNTIL the FPSP is installed (floating point =
 emulation for specific FPU opcodes the MC68060 is missing).
 
 This is curious.  The 060 FPSP should be initialized at this point.  I =
 will take a look to see if something obvious is missing.
 
 -- thorpej
 


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