From mboxrd@z Thu Jan 1 00:00:00 1970 To: linuxppc-dev@lists.linuxppc.org Subject: Problems with linuxppc_2_2 on an MVME-2400 Mime-Version: 1.0 (generated by tm-edit 7.108) Content-Type: text/plain; charset=US-ASCII From: Michael Lundkvist Date: 20 Aug 2000 13:02:34 +0200 Message-ID: Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: I rsync:ed against FSMLabs repository yesterday and got linuxppc_2_2 to play with on my MVME-2400. I've got a MVME-2400 VME-board with a Ramix PMC-disk (based an a CMD-646 controller with an IBM disk). I can get it to boot but as soon as I start any moderate disk activity I get a panic in find_buffer(). NIP: C0030594 XER: 00000000 LR: C00305D4 REGS: cf99fc50 TRAP: 0300 MSR: 00009032 [EEIRDRME] TASK = cf99e000[26] 'bzip2' mm->pgd cfcca000 Last syscall: 3 last math cf9d4000 GPR00: 0003FFFF CF99FD00 CF99E000 0180C200 00010CE2 00001000 00000302 C0100000 GPR08: 00433880 0180C200 CFF00000 C0100000 24244858 1001D3C4 00000000 C015DDE0 GPR16: C0109A78 C00243B8 C0100000 00000001 C0030000 00000001 00000000 00000302 GPR24: CF99FD8C 00000000 C04FD198 CCAFEEA0 00001000 CCAFEEB8 CCAFEEA0 00010CE2 Call backtrace: 00000001 C0031718 C0031AD8 C0023B88 C0024050 C00244AC C002E75C C0003924 FFFFFFFF 0FF13E10 0FF151B8 0FF149EC 0FF15594 0FF0FAE0 0FFDD464 10001064 1000296C 10003AD8 0FEDF75C 00000000 Kernel panic: kernel access of bad area pc c0030594 lr c00305d4 address 180C204 tsk bzip2/26 Rebooting in 180 seconds.. >>NIP; c0030594 <===== Trace; 00000001 Before first symbol Trace; c0031718 Trace; c0031ad8 Trace; c0023b88 Trace; c0024050 Trace; c00244ac Trace; c002e75c Trace; c0003924 Trace; ffffffff Trace; 0ff13e10 Before first symbol Trace; 0ff151b8 Before first symbol Trace; 0ff149ec Before first symbol Trace; 0ff15594 Before first symbol Trace; 0ff0fae0 Before first symbol Trace; 0ffdd464 Before first symbol Trace; 10001064 Before first symbol Trace; 1000296c Before first symbol Trace; 10003ad8 Before first symbol Trace; 0fedf75c Before first symbol Trace; 00000000 Before first symbol I've tried several times and the panic is always in the same place. This is the disassemble of the find_buffer function: c0030530 : c0030530: 3d 20 c0 10 lis r9,-16368 c0030534: 81 69 74 38 lwz r11,29752(r9) c0030538: 7c 66 1b 78 mr r6,r3 c003053c: 39 2b ff fa addi r9,r11,-6 c0030540: 39 0b ff f4 addi r8,r11,-12 c0030544: 7c 8a 48 30 slw r10,r4,r9 c0030548: 7c 80 6e 70 srawi r0,r4,13 c003054c: 39 6b ff f7 addi r11,r11,-9 c0030550: 7d 4a 02 78 xor r10,r10,r0 c0030554: 7c cb 58 30 slw r11,r6,r11 c0030558: 7c 88 40 30 slw r8,r4,r8 c003055c: 7c c9 48 30 slw r9,r6,r9 c0030560: 3c e0 c0 10 lis r7,-16368 c0030564: 7d 29 5a 78 xor r9,r9,r11 c0030568: 7d 4a 42 78 xor r10,r10,r8 c003056c: 80 07 74 34 lwz r0,29748(r7) c0030570: 7d 29 52 78 xor r9,r9,r10 c0030574: 3d 60 c0 10 lis r11,-16368 c0030578: 7d 29 00 38 and r9,r9,r0 c003057c: 81 4b 74 3c lwz r10,29756(r11) c0030580: 55 29 10 3a rlwinm r9,r9,2,0,29 c0030584: 7c 69 50 2e lwzx r3,r9,r10 c0030588: 2c 03 00 00 cmpwi r3,0 c003058c: 7c 69 1b 78 mr r9,r3 c0030590: 4d 82 00 20 beqlr c0030594: 80 09 00 04 lwz r0,4(r9) c0030598: 80 63 00 00 lwz r3,0(r3) c003059c: 7c 00 20 00 cmpw r0,r4 c00305a0: 40 82 ff e8 bne c0030588 c00305a4: 80 09 00 08 lwz r0,8(r9) c00305a8: 7c 00 28 00 cmpw r0,r5 c00305ac: 40 82 ff dc bne c0030588 c00305b0: a0 09 00 0c lhz r0,12(r9) c00305b4: 7c 00 30 00 cmpw r0,r6 c00305b8: 40 82 ff d0 bne c0030588 c00305bc: 7d 23 4b 78 mr r3,r9 c00305c0: 4e 80 00 20 blr I have a pre-compiled Debian kernel that works, but I can't seem to find the source for exactly that version. This is what the working version claims to be: Linux version 2.2.16pre4 (drow@crack.them.org) (gcc version 2.95.2 20000313 (Debian GNU/Linux)) #1 Tue Jun 6 17:34:50 CDT 2000 Does anyone have any hints on how to solve this? /Micke ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/