From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <000101bedfdd$9250fc20$6401a8c0@everyone> From: "Neil Blackwood" To: Subject: PROBLEMS BOOTING KERNEL ON EMBEDDED PROCESSOR MBX821 Date: Thu, 5 Aug 1999 17:59:29 +0100 MIME-Version: 1.0 Content-Type: text/plain;charset="iso-8859-1" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: I have just downloaded the 2.2.0pre6 kernel for MBX8xx processors from the embedded directory of linuxppc.cs.nmt.edu. We are running it on a MXX821-004A development board. Unfortunately we seem to have a problem during the booting of the kernel. The messages iack = -1 and irq = 7 are displayed continuously. We have managed to track down the iack message in the kernel source. In directory linux/arch/ppc/kernel in File ppc8xx_pic.c In function mbx_i8259_action() is the code int irq; irq = (inl(0x508)>>24)&0xff; if (irq!= 0xff)printk("iack 5d\n", irq); We think this is inconsistent if the value of irq is printed out as -1. We have previously run a 2.1 version of the kernel successfully. Do you have any ideas to solve the problem? I am also looking at including floating point libraries into the kernel. Does anything currently exist? Neil Blackwood ps Is this type of enquiry suitable for this mailing list or should I use USERS. pps I am completely new to LINUX and operating systems in general, so my current level of understanding is very low. ------------------------------------------------------ www.terrafix.co.uk Terrafix Ltd 23c Newfield Industrial Estate Tunstall, Stoke on Trent Staffordshire, UK, ST6 5PD +44 1782 577015, +44 1782 835667 (fax) [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. Please check http://lists.linuxppc.org/ ]] [[ and http://www.linuxppc.org/ for useful information before posting. ]]