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RE: Getting a data bus error on SB1 board

To: "Jonathan Day" <imipak@yahoo.com>, linux-mips@linux-mips.org
Subject: RE: Getting a data bus error on SB1 board
From: "Manoj Ekbote" <manoje@broadcom.com>
Date: Fri, 17 Nov 2006 16:50:27 -0800
In-reply-to: <20061117214910.53076.qmail@web31506.mail.mud.yahoo.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
Thread-index: AccKklcCE/Q8cer0QcWFWCJkPDjRtQAFekRA
Thread-topic: Getting a data bus error on SB1 board
Hi,

The latest source boots on the SWARM board that I have. I am using NFS
to boot. 

/manoj

>-----Original Message-----
>From: linux-mips-bounce@linux-mips.org 
>[mailto:linux-mips-bounce@linux-mips.org] On Behalf Of Jonathan Day
>Sent: Friday, November 17, 2006 1:49 PM
>To: linux-mips@linux-mips.org
>Subject: Getting a data bus error on SB1 board
>
>Hi,
>
>I'm using the latest (ok, 17th November, 10am pacific
>time) git tree on the Broadcom BCM91250 that I've always had 
>problems with/nightmares about.
>
>I'm getting a data bus error and am wondering if there are any 
>un-gitted patches circulating that fix the problem and/or can 
>diagnose better what is going on.
>
>After turning on ALL of the debugging Linux has to offer (and 
>then some), this is the part of the boot log that shows what 
>is happening:
>
>[42949373.640000] Good, all 218 testcases passed! | 
>[42949373.650000] --------------------------------- 
>[42949373.650000] Dentry cache hash table entries:
>32768 (order: 6, 262144 bytes)
>[42949373.660000] Inode-cache hash table entries:
>16384 (order: 5, 131072 bytes)
>[42949373.700000] Memory: 247296k/260764k available (3030k 
>kernel code, 13152k reserved, 1123k data, 232k init, 0k 
>highmem) [42949373.960000] Mount-cache hash table entries: 256 
>[42949373.970000] Checking for 'wait' instruction... 
>unavailable.
>[42949373.970000] Checking for the multiply/shift bug... no.
>[42949373.980000] Checking for the daddi bug... no.
>[42949373.980000] Checking for the daddiu bug... no.
>[42949373.990000] CPU revision is: 03040102 [42949373.990000] 
>FPU revision is: 000f0102 [42949373.990000] Primary 
>instruction cache 32kB, 4-way, linesize 32 bytes.
>[42949373.990000] Primary data cache 32kB, 4-way, linesize 32 bytes.
>[42949373.990000] Synthesized TLB refill handler (40 instructions).
>[42949374.240000] Brought up 2 CPUs
>[42949374.270000] migration_cost=10000
>[42949374.290000] NET: Registered protocol family 16 
>[42949374.330000] Generic PHY: Registered new driver 
>[42949374.340000] SCSI subsystem initialized [42949374.340000] 
>usbcore: registered new interface driver usbfs 
>[42949374.350000] usbcore: registered new interface driver hub 
>[42949374.360000] usbcore: registered new device driver usb 
>[42949374.380000] NET: Registered protocol family 2 
>[42949374.500000] IP route cache hash table entries:
>2048 (order: 2, 16384 bytes)
>[42949374.500000] TCP established hash table entries:
>8192 (order: 6, 458752 bytes)
>[42949374.520000] TCP bind hash table entries: 4096
>(order: 5, 229376 bytes)
>[42949374.530000] TCP: Hash tables configured (established 
>8192 bind 4096) [42949374.530000] TCP reno registered 
>[42949374.550000] Initializing RT-Tester: OK [42949374.550000] 
>audit: initializing netlink socket
>(disabled)
>[42949374.560000] audit(1163791574.600:1): initialized 
>[42949374.570000] io scheduler noop registered 
>[42949374.570000] io scheduler anticipatory registered 
>[42949374.580000] io scheduler deadline registered
>(default)
>[42949374.590000] io scheduler cfq registered 
>[42949375.160000] RAMDISK driver initialized: 1 RAM disks of 
>4096K size 1024 blocksize [42949375.170000] eth0: enabling TCP 
>rcv checksum [42949375.170000] eth0: SiByte Ethernet at 0x10064000,
>address: 00:02:4C:FD:0D:3C
>[42949375.180000] eth1: enabling TCP rcv checksum 
>[42949375.190000] eth1: SiByte Ethernet at 0x10065000,
>address: 00:02:4C:FD:0D:3D
>[42949375.200000] physmap platform flash device:
>01000000 at 1fc00000
>[42949375.210000] physmap-flash.0: Found 1 x16 devices at 0x0 
>in 8-bit bank [42949375.210000] DBE physical address: 
>0020000020 [42949375.220000] Data bus error, epc == 
>ffffffff802da0bc, ra == ffffffff802da6d0 [42949375.230000] Oops[#1]:
>[42949375.230000] Cpu 1
>[42949375.230000] $ 0   : 0000000000000000
>0000000014001fe0 0000000000000000 0000000000400020
>[42949375.240000] $ 4   : a800000000b2e770
>0000000000400000 0000000000000001 0000000000000001
>[42949375.250000] $ 8   : 0000000000000001
>0000000000000001 0000000000000002 a80000000fe27b23
>[42949375.260000] $12   : 000000000000000a
>0000000000000000 0000000000000000 ffffffff80406ef8
>[42949375.260000] $16   : a800000000b2e770
>a80000000fe27c50 0000000000000001 0000000000400000
>[42949375.270000] $20   : ffffffff80480d70
>0000000000400000 ffffffff8047dd80 ffffffff80481388
>[42949375.280000] $24   : 0000000000000030
>0000000000000000
>[42949375.290000] $28   : a80000000fe24000
>a80000000fe27bb0 a80000000fe27bb0 ffffffff802da6d0
>[42949375.300000] Hi    : 0000000000000000
>[42949375.300000] Lo    : 0000000000000001
>[42949375.300000] epc   : ffffffff802da0bc
>qry_present+0x2ac/0x420     Not tainted
>[42949375.310000] ra    : ffffffff802da6d0
>cfi_probe_chip+0x460/0x17d0
>[42949375.320000] Status: 14001fe3    KX SX UX KERNEL
>EXL IE
>[42949375.320000] Cause : 8080001c
>[42949375.330000] PrId  : 03040102
>[42949375.330000] Modules linked in:
>[42949375.330000] Process swapper (pid: 1, 
>threadinfo=a80000000fe24000, task=a80000000fe20e08) 
>[42949375.340000] Stack : 0000000000000000 ffffffff80481370 
>0000000000200000 0000000000000051
>[42949375.350000]         0000000000000052
>0000000000000059 a80000000fe27bf0 a80000000fe27b23
>[42949375.360000]         a800000000b2cb58
>00000000000000d0 0000000000000003 a800000000b2cb58
>[42949375.360000]         0000000000000001
>a800000000b2e770 ffffffff80480d70 0000000000000008
>[42949375.370000]         ffffffff8047dd80
>ffffffff80481388 a80000000fe27c50 ffffffff802e31b8
>[42949375.380000]         0000000000000000
>0000000000000000 0000000100000002 0000000100000000
>[42949375.390000]         0000000000000000
>0000000000000000 a800000000aff668 000000ad00000049
>[42949375.400000]         0000000100000000
>0000000000000015 0000000000000000 a80000000fe27cc0
>[42949375.410000]         ffffffff80480d40
>ffffffff80428288 a800000000b2e770 ffffffff80481370
>[42949375.410000]         ffffffff80481150
>ffffffff80481498 ffffffff8047dd80 ffffffff80481388
>[42949375.420000]         ...
>[42949375.420000] Call Trace:
>[42949375.430000] [<ffffffff802da0bc>]
>qry_present+0x2ac/0x420
>[42949375.430000] [<ffffffff802da6d0>]
>cfi_probe_chip+0x460/0x17d0
>[42949375.440000] [<ffffffff802e31b8>]
>mtd_do_chip_probe+0x1d4/0x48c
>[42949375.440000] [<ffffffff802da25c>]
>cfi_probe+0x2c/0x40
>[42949375.450000] [<ffffffff802d9d64>]
>do_map_probe+0x7c/0x128
>[42949375.460000] [<ffffffff802e37f4>]
>physmap_flash_probe+0x1f8/0x324
>[42949375.460000] [<ffffffff802bdd2c>]
>platform_drv_probe+0x20/0x34
>[42949375.470000] [<ffffffff802bb418>]
>really_probe+0x94/0x1d4
>[42949375.470000] [<ffffffff802bb65c>]
>driver_probe_device+0x104/0x124
>[42949375.480000] [<ffffffff802bb690>]
>__device_attach+0x14/0x28
>[42949375.480000] [<ffffffff802ba1e0>]
>bus_for_each_drv+0x5c/0xb0
>[42949375.490000] [<ffffffff802bb760>]
>device_attach+0xbc/0x110
>[42949375.500000] [<ffffffff802ba0b8>]
>bus_attach_device+0x40/0x94
>[42949375.500000] [<ffffffff802b8588>]
>device_add+0x40c/0x5d4
>[42949375.510000] [<ffffffff802be39c>]
>platform_device_add+0x1b4/0x218
>[42949375.510000] [<ffffffff802be428>]
>platform_device_register+0x28/0x40
>[42949375.520000] [<ffffffff8053453c>]
>physmap_init+0x58/0x74
>[42949375.530000] [<ffffffff8010071c>]
>init+0x2bc/0x68c
>[42949375.530000] [<ffffffff8010523c>]
>kernel_thread_helper+0x14/0x1c
>[42949375.540000]
>[42949375.540000]
>[42949375.540000] Code: dc820018  0043102d  90420000 
><080b6840> 304600ff  24020002  14c20006  24020004
>dc820018
>[42949375.550000] Kernel panic - not syncing:
>Attempted to kill init!
>[42949375.560000]  BUG: warning at
>kernel/lockdep.c:1822/trace_hardirqs_on()
>[42949375.560000] Rebooting in 5 seconds..Call Trace:
>[42949375.560000] [<ffffffff80109ffc>]
>dump_stack+0x10/0x54
>[42949375.560000] [<ffffffff8016226c>]
>trace_hardirqs_on+0x190/0x290
>[42949375.560000] [<ffffffff8010cb04>]
>stop_this_cpu+0x64/0x7c
>[42949375.560000] [<ffffffff8010d1f0>]
>smp_call_function_interrupt+0x90/0xf0
>[42949375.560000] [<ffffffff801020d8>]
>sb1250_mailbox_interrupt+0xdc/0xf8
>[42949375.560000] [<ffffffff80101934>]
>plat_irq_dispatch+0x54/0x1ec
>[42949375.560000] [<ffffffff801027e0>]
>ret_from_irq+0x0/0x4
>[42949375.560000] [<ffffffff801052c0>]
>cpu_idle+0x40/0x7c
>[42949375.560000] [<ffffffff80100b48>]
>rest_init+0x5c/0x74
>[42949375.560000] [<ffffffff8051000c>]
>start_kernel+0x660/0x688
>[42949375.560000]
>
>
>
> 
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