Date: Fri, 3 Mar 1995 9:33:28 +0200 (O) From: ROBIN@ptnsct.nis.za (Robin Hunt) To: bugs@FreeBSD.org Subject: 16/32 meg problem Message-ID: <950303093328.f7e3@ptnsct.nis.za>
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Hi, I have previously queried this problem, but have not heard any more since tuesday, and thought I'd re-ask: I have a 486DX2-80 with 16 Meg of RAM, a 2 meg caching IDE controller and it works fine. Should I dare to add a further 16 meg to the machine, FreeBSD boots without any problem - passing the memory test - but panics with the following message: Feb 24 17:08:17 ilink /kernel: Feb 24 17:08:17 ilink /kernel: Fatal trap 12: page fault while in kernel mode Feb 24 17:08:17 ilink /kernel: fault virtual address = 0x0 Feb 24 17:08:17 ilink /kernel: fault code = supervisor read, page not present Feb 24 17:08:17 ilink /kernel: instruction pointer = 0x8:0xf0168885 Feb 24 17:08:17 ilink /kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Feb 24 17:08:17 ilink /kernel: = DPL 0, pres 1, def32 1, gran 1 Feb 24 17:08:17 ilink /kernel: processor eflags = interrupt enabled, resume, IOPL = 0 Feb 24 17:08:17 ilink /kernel: current process = 2737 (rbash) Feb 24 17:08:17 ilink /kernel: interrupt mask = net tty bio Feb 24 17:08:17 ilink /kernel: panic: page fault Feb 24 17:08:17 ilink /kernel: Feb 24 17:08:17 ilink /kernel: syncing disks... 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 giving up Feb 24 17:08:17 ilink /kernel: Automatic reboot in 15 seconds - press a key on the console to abort Feb 24 17:08:17 ilink /kernel: Rebooting... Feb 24 17:08:17 ilink /kernel: FreeBSD 2.1.0-Development #0: Fri Feb 24 11:35:32 1995 Feb 24 17:08:17 ilink /kernel: root@ilink.nis.za:/usr/src/sys/compile/NIS_AH Feb 24 17:08:17 ilink /kernel: CPU: i486DX (486-class CPU) Feb 24 17:08:17 ilink /kernel: real memory = 33161216 (8096 pages) Feb 24 17:08:17 ilink /kernel: avail memory = 30896128 (7543 pages) Feb 24 17:08:17 ilink /kernel: Probing for devices on the ISA bus: Feb 24 17:08:17 ilink /kernel: sc0 at 0x60-0x6f irq 1 on motherboard Feb 24 17:08:17 ilink /kernel: sc0: MDA/hercules <12 virtual consoles, flags=0> Feb 24 17:08:17 ilink /kernel: ed1 at 0x300-0x31f irq 5 maddr 0xd8000 msize 16384 on isa Feb 24 17:08:17 ilink /kernel: ed1: address 00:00:c0:ab:ad:5e, type WD8013EPC (16 bit) Feb 24 17:08:17 ilink /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa Feb 24 17:08:17 ilink /kernel: sio0: type 16550A Feb 24 17:08:17 ilink /kernel: lpt0 at 0x3bc-0x3c3 irq 7 on isa Feb 24 17:08:17 ilink /kernel: lpt0: Interrupt-driven port Feb 24 17:08:17 ilink /kernel: lp0: TCP/IP capable interface Feb 24 17:08:17 ilink /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa Feb 24 17:08:17 ilink /kernel: fdc0: (NEC 765) [0: fd0: 1.44MB 3.5in] Feb 24 17:08:17 ilink /kernel: wdc0 at 0x1f0-0x1f7 irq 14 on isa Feb 24 17:08:17 ilink /kernel: wdc0: unit 0 (wd0): <ST506> Feb 24 17:08:17 ilink /kernel: wd0: size unknown, using BIOS values Feb 24 17:08:17 ilink /kernel: 1024 cyl, 16 head, 63 sec, bytes/sec 512 Feb 24 17:08:17 ilink /kernel: npx0 on motherboard Feb 24 17:08:17 ilink /kernel: npx0: INT 16 interface Feb 24 17:08:17 ilink /kernel: WARNING: / was not properly dismounted Feb 24 17:08:19 ilink lpd[71]: restarted Feb 24 17:08:24 ilink slattach[102]: sl0 connected to /dev/tty00 at 38400 baud Here is an extract of the name list around that address from the kernel: f0167ec4 T _pmap_object_init_pt f0168260 T _pmap_change_wiring f0168328 T _pmap_copy f0168330 T _pmap_kernel f0168354 T _pmap_zero_page f01683bc T _pmap_copy_page f016843c T _pmap_pageable f0168444 T _pmap_page_exists f0168528 T _pmap_testbit f0168738 T _pmap_changebit f01688bc T _pmap_page_protect f01688e4 T _pmap_phys_address f01688f0 t _i386_protection_init f0168974 T _pmap_mapdev f0168a00 F support.o f0168a00 T ___udivsi3 f0168a0c T ___divsi3 f0168a18 T _rtcin I would appreciate any help you may be able to offer, as the problem is becomming a touch urgent, since we are running out of memory for the users we have. Please mail any responses to robin@ptnsct.nis.za Thanks, Bye
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