DOCUMENT ID: 1199-02 SYNOPSIS: APIC can cause Solaris 2.4 x86 to fail on installation OS RELEASE: 2.4 PRODUCT: Solaris x86 KEYWORDS: APIC install MP intel MPS SYMPTOMS: When installing on Intel MPS 1.1 based MP systems, Solaris 2.4 for x86 can generate a kernel panic: Page Fault if the APIC is disabled, causing the following panic report: eip(e000a444), eflags(10206), ebp(e00a29b8), uesp(e0003591), esp(e00a2994), eax(24), ebx(3), ecx(b0), edx(24), esi(0), edi(3), cr0(80050033), cr2(24), cr3(272000), cs(158), da(160), ss(24), es(160), fs(1a8), gs(1b0) Panic: PAge Fault BAD TRAP Page Fault Kernel fault at addr=0x24, pte=0x0, pid=0, pc=0xe000a444, sp=0xe0003591, eflags=0x10206 DESCRIPTION: On x86 MP systems built to the Intel MPS 1.1 specification that use the Award MP BIOS, there is a jumper on the motherboard to enable APIC which is set to disable by default. The BIOS still reports to Solaris 2.4 for x86 during installation that the machine is MPS 1.1 compliant and so it will attempt to use the APIC resulting in the above panic. SOLUTION: To resolve this issue, the jumper controlling APIC should be set to enabled. DATE APPROVED: 10/10/95