I noticessed the following oops on 2.6.29.6 with -rt23 patch. without
the patch anything is fine.
[ 0.593279] geode-mfgpt: 3 MFGPT timers available.
[ 0.651678] geode-mfgpt: Registered timer 0
[ 0.702818] mfgpt-timer: Registering MFGPT timer 0 as a clock event,
using IRQ 11
[ 0.797051] PCI: PCI BIOS revision 2.10 entry at 0xff8b7, last bus=0
[ 0.800000] BUG: unable to handle kernel NULL pointer dereference at
00000034
[ 0.800000] IP: [<c0233d54>] tick_periodic+0x59/0x6d
[ 0.800000] *pde = 00000000
[ 0.800000] Oops: 0000 [#1] PREEMPT
[ 0.800000] last sysfs file:
[ 0.800000] Modules linked in:
[ 0.800000]
[ 0.800000] Pid: 19, comm: IRQ-11 Not tainted (2.6.29.6-rt23 #8)
[ 0.800000] EIP: 0060:[<c0233d54>] EFLAGS: 00010246 CPU: 0
[ 0.800000] EIP is at tick_periodic+0x59/0x6d
[ 0.800000] EAX: 00000000 EBX: 00006206 ECX: 2faf0824 EDX: ffff8b20
[ 0.800000] ESI: 00000000 EDI: c051c4a0 EBP: 00000000 ESP: ce041f78
[ 0.800000] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
preempt:00000001
[ 0.800000] Process IRQ-11 (pid: 19, ti=ce041000 task=ce03a7f0
task.ti=ce041000)
[ 0.800000] Stack:
[ 0.800000] c0233d74 00006206 00000000 0000000b c0213339 c051c460
c023d43a 0000000b
[ 0.800000] 00000000 c051f650 0000000b 0000000b c051c460 c023d7bb
c051f650 0000000b
[ 0.800000] 00000000 00000246 c023dd44 00000032 c051f650 c023dcb4
00000000 00000000
[ 0.800000] Call Trace:
[ 0.800000] [<c0233d74>] ? tick_handle_periodic+0xc/0x60
[ 0.800000] [<c0213339>] ? mfgpt_tick+0x89/0x90
[ 0.800000] [<c023d43a>] ? handle_IRQ_event+0x3f/0xad
[ 0.800000] [<c023d7bb>] ? thread_simple_irq+0x3a/0x72
[ 0.800000] [<c023dd44>] ? do_irqd+0x90/0x23e
[ 0.800000] [<c023dcb4>] ? do_irqd+0x0/0x23e
[ 0.800000] [<c022c0eb>] ? kthread+0x38/0x5d
[ 0.800000] [<c022c0b3>] ? kthread+0x0/0x5d
[ 0.800000] [<c0202f43>] ? kernel_thread_helper+0x7/0x10
[ 0.800000] Code: c0 b8 01 00 00 00 e8 ad 09 ff ff ff 05 40 31 5c c0
89 e0 25 00 f0 ff ff ff 48 14 f6 40 08 08 74 05 e8 39 84 20 00 a1 e8 92
51 c0 <8b> 40 34 83 e0 03 83 f8 03 0f 94 c0 0f b6 c0 e9 22 0c ff ff 57
[ 0.800000] EIP: [<c0233d54>] tick_periodic+0x59/0x6d SS:ESP
0068:ce041f78
[ 0.800000] CR2: 0000000000000034
[ 0.800000] ---[ end trace 4eaa2a86a8e2da22 ]---
any ideas?
the system is AMD LX800 with CS5536 PC-104
attached the bootlog.
--
Mit freundlichen Grüßen
Jens Döring
[ 0.000000] Linux version 2.6.29.6-rt23 (root@Gentoo-LX800) (gcc version 4.1.2 (Gentoo 4.1.2 p1.0.2)) #8 PREEMPT RT Mon Jul 20 09:45:15 CEST 2009
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] NSC Geode by NSC
[ 0.000000] Cyrix CyrixInstead
[ 0.000000] Centaur CentaurHauls
[ 0.000000] Transmeta GenuineTMx86
[ 0.000000] Transmeta TransmetaCPU
[ 0.000000] UMC UMC UMC UMC
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
[ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000000e7c0000 (usable)
[ 0.000000] BIOS-e820: 0000000080400000 - 0000000080440004 (reserved)
[ 0.000000] BIOS-e820: 00000000f0000000 - 0000000100000000 (reserved)
[ 0.000000] DMI not present or invalid.
[ 0.000000] last_pfn = 0xe7c0 max_arch_pfn = 0x100000
[ 0.000000] init_memory_mapping: 0000000000000000-000000000e7c0000
[ 0.000000] ACPI Error (tbxfroot-0219): A valid RSDP was not found [20081204]
[ 0.000000] 231MB LOWMEM available.
[ 0.000000] mapped low ram: 0 - 0e7c0000
[ 0.000000] low ram: 0 - 0e7c0000
[ 0.000000] node 0 low ram: 00000000 - 0e7c0000
[ 0.000000] node 0 bootmap 00001000 - 00002cf8
[ 0.000000] (6 early reservations) ==> bootmem [0000000000 - 000e7c0000]
[ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
[ 0.000000] #1 [0000200000 - 00005d9634] TEXT DATA BSS ==> [0000200000 - 00005d9634]
[ 0.000000] #2 [000009fc00 - 0000100000] BIOS reserved ==> [000009fc00 - 0000100000]
[ 0.000000] #3 [00005da000 - 00005dc000] BRK ==> [00005da000 - 00005dc000]
[ 0.000000] #4 [0000007000 - 0000008000] PGTABLE ==> [0000007000 - 0000008000]
[ 0.000000] #5 [0000001000 - 0000003000] BOOTMAP ==> [0000001000 - 0000003000]
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000000 -> 0x00001000
[ 0.000000] Normal 0x00001000 -> 0x0000e7c0
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[2] active PFN ranges
[ 0.000000] 0: 0x00000000 -> 0x0000009f
[ 0.000000] 0: 0x00000100 -> 0x0000e7c0
[ 0.000000] Using APIC driver default
[ 0.000000] No local APIC present or hardware disabled
[ 0.000000] Allocating PCI resources starting at 10000000 (gap: e7c0000:71c40000)
[ 0.000000] Real-Time Preemption Support (C) 2004-2007 Ingo Molnar
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 58767
[ 0.000000] Kernel command line: console=ttyS0 root=/dev/hda3
[ 0.000000] Initializing CPU#0
[ 0.000000] Preemptible RCU implementation.
[ 0.000000] NR_IRQS:288
[ 0.000000] PID hash table entries: 1024 (order: 10, 4096 bytes)
[ 0.000000] Fast TSC calibration using PIT
[ 0.000000] Detected 498.018 MHz processor.
[ 0.010000] Console: colour VGA+ 80x25
[ 0.010000] console [ttyS0] enabled
[ 0.010000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.010000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.010000] Memory: 230660k/237312k available (2295k kernel code, 6096k reserved, 1108k data, 248k init, 0k highmem)
[ 0.010000] virtual kernel memory layout:
[ 0.010000] fixmap : 0xfffaa000 - 0xfffff000 ( 340 kB)
[ 0.010000] vmalloc : 0xcefc0000 - 0xfffa8000 ( 783 MB)
[ 0.010000] lowmem : 0xc0000000 - 0xce7c0000 ( 231 MB)
[ 0.010000] .init : 0xc0554000 - 0xc0592000 ( 248 kB)
[ 0.010000] .data : 0xc043de87 - 0xc0552f58 (1108 kB)
[ 0.010000] .text : 0xc0200000 - 0xc043de87 (2295 kB)
[ 0.010000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[ 0.010016] Calibrating delay loop (skipped), value calculated using timer frequency.. 996.03 BogoMIPS (lpj=4980180)
[ 0.136378] Mount-cache hash table entries: 512
[ 0.190998] CPU: L1 I Cache: 64K (32 bytes/line), D cache 64K (32 bytes/line)
[ 0.276411] CPU: L2 Cache: 128K (32 bytes/line)
[ 0.330601] CPU: Geode(TM) Integrated Processor by AMD PCS stepping 02
[ 0.408990] Checking 'hlt' instruction... OK.
[ 0.497058] net_namespace: 960 bytes
[ 0.540038] NET: Registered protocol family 16
[ 0.593279] geode-mfgpt: 3 MFGPT timers available.
[ 0.651678] geode-mfgpt: Registered timer 0
[ 0.702818] mfgpt-timer: Registering MFGPT timer 0 as a clock event, using IRQ 11
[ 0.797051] PCI: PCI BIOS revision 2.10 entry at 0xff8b7, last bus=0
[ 0.800000] BUG: unable to handle kernel NULL pointer dereference at 00000034
[ 0.800000] IP: [<c0233d54>] tick_periodic+0x59/0x6d
[ 0.800000] *pde = 00000000
[ 0.800000] Oops: 0000 [#1] PREEMPT
[ 0.800000] last sysfs file:
[ 0.800000] Modules linked in:
[ 0.800000]
[ 0.800000] Pid: 19, comm: IRQ-11 Not tainted (2.6.29.6-rt23 #8)
[ 0.800000] EIP: 0060:[<c0233d54>] EFLAGS: 00010246 CPU: 0
[ 0.800000] EIP is at tick_periodic+0x59/0x6d
[ 0.800000] EAX: 00000000 EBX: 00006206 ECX: 2faf0824 EDX: ffff8b20
[ 0.800000] ESI: 00000000 EDI: c051c4a0 EBP: 00000000 ESP: ce041f78
[ 0.800000] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 preempt:00000001
[ 0.800000] Process IRQ-11 (pid: 19, ti=ce041000 task=ce03a7f0 task.ti=ce041000)
[ 0.800000] Stack:
[ 0.800000] c0233d74 00006206 00000000 0000000b c0213339 c051c460 c023d43a 0000000b
[ 0.800000] 00000000 c051f650 0000000b 0000000b c051c460 c023d7bb c051f650 0000000b
[ 0.800000] 00000000 00000246 c023dd44 00000032 c051f650 c023dcb4 00000000 00000000
[ 0.800000] Call Trace:
[ 0.800000] [<c0233d74>] ? tick_handle_periodic+0xc/0x60
[ 0.800000] [<c0213339>] ? mfgpt_tick+0x89/0x90
[ 0.800000] [<c023d43a>] ? handle_IRQ_event+0x3f/0xad
[ 0.800000] [<c023d7bb>] ? thread_simple_irq+0x3a/0x72
[ 0.800000] [<c023dd44>] ? do_irqd+0x90/0x23e
[ 0.800000] [<c023dcb4>] ? do_irqd+0x0/0x23e
[ 0.800000] [<c022c0eb>] ? kthread+0x38/0x5d
[ 0.800000] [<c022c0b3>] ? kthread+0x0/0x5d
[ 0.800000] [<c0202f43>] ? kernel_thread_helper+0x7/0x10
[ 0.800000] Code: c0 b8 01 00 00 00 e8 ad 09 ff ff ff 05 40 31 5c c0 89 e0 25 00 f0 ff ff ff 48 14 f6 40 08 08 74 05 e8 39 84 20 00 a1 e8 92 51 c0 <8b> 40 34 83 e0 03 83 f8 03 0f 94 c0 0f b6 c0 e9 22 0c ff ff 57
[ 0.800000] EIP: [<c0233d54>] tick_periodic+0x59/0x6d SS:ESP 0068:ce041f78
[ 0.800000] CR2: 0000000000000034
[ 0.800000] ---[ end trace 4eaa2a86a8e2da22 ]---
[ 0.800000] PCI: Using configuration type 1 for base access
[ 0.800000] bio: create slab <bio-0> at 0
[ 0.800000] ACPI: Interpreter disabled.
[ 0.800000] SCSI subsystem initialized
[ 0.800000] libata version 3.00 loaded.
[ 0.800000] usbcore: registered new interface driver usbfs
[ 0.800000] usbcore: registered new interface driver hub
[ 0.800000] usbcore: registered new device driver usb
[ 0.800000] PCI: Probing PCI hardware
[ 0.800000] PCI: Probing PCI hardware (bus 00)
[ 0.800000] pci 0000:00:01.0: reg 10 io port: [0xac1c-0xac1f]
[ 0.800000] pci 0000:00:01.1: reg 10 32bit mmio: [0x90000000-0x91ffffff]
[ 0.800000] pci 0000:00:01.1: reg 14 32bit mmio: [0x8fffc000-0x8fffffff]
[ 0.800000] pci 0000:00:01.1: reg 18 32bit mmio: [0x8fff8000-0x8fffbfff]
[ 0.800000] pci 0000:00:01.1: reg 1c 32bit mmio: [0x8fff4000-0x8fff7fff]
[ 0.800000] pci 0000:00:01.1: reg 20 32bit mmio: [0x8fff0000-0x8fff3fff]
[ 0.800000] pci 0000:00:01.2: reg 10 32bit mmio: [0xefe00000-0xefe03fff]
[ 0.800000] pci 0000:00:08.0: reg 10 32bit mmio: [0xefd00000-0xefd00fff]
[ 0.800000] pci 0000:00:08.0: reg 14 io port: [0xdfc0-0xdfff]
[ 0.800000] pci 0000:00:08.0: reg 18 32bit mmio: [0xefc00000-0xefc1ffff]
[ 0.800000] pci 0000:00:08.0: reg 30 32bit mmio: [0xefb00000-0xefb0ffff]
[ 0.800000] pci 0000:00:08.0: supports D1 D2
[ 0.800000] pci 0000:00:08.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.800000] pci 0000:00:08.0: PME# disabled
[ 0.800000] pci 0000:00:0e.0: reg 10 32bit mmio: [0xefa00000-0xefa00fff]
[ 0.800000] pci 0000:00:0e.0: reg 14 io port: [0xdf80-0xdfbf]
[ 0.800000] pci 0000:00:0e.0: reg 18 32bit mmio: [0xef900000-0xef91ffff]
[ 0.800000] pci 0000:00:0e.0: reg 30 32bit mmio: [0xef800000-0xef80ffff]
[ 0.800000] pci 0000:00:0e.0: supports D1 D2
[ 0.800000] pci 0000:00:0e.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.800000] pci 0000:00:0e.0: PME# disabled
[ 0.800000] pci 0000:00:0f.0: reg 10 io port: [0x6000-0x6007]
[ 0.800000] pci 0000:00:0f.0: reg 14 io port: [0x6100-0x61ff]
[ 0.800000] pci 0000:00:0f.0: reg 18 io port: [0x6200-0x623f]
[ 0.800000] pci 0000:00:0f.0: reg 1c io port: [0x00-0x1f]
[ 0.800000] pci 0000:00:0f.0: reg 20 io port: [0x9d00-0x9d7f]
[ 0.800000] pci 0000:00:0f.0: reg 24 io port: [0x9c00-0x9c3f]
[ 0.800000] pci 0000:00:0f.2: reg 20 io port: [0xeff0-0xefff]
[ 0.800000] pci 0000:00:0f.4: reg 10 32bit mmio: [0xeff00000-0xeff00fff]
[ 0.800000] pci 0000:00:0f.4: PME# supported from D0 D3hot D3cold
[ 0.800000] pci 0000:00:0f.4: PME# disabled
[ 0.800000] pci 0000:00:0f.5: reg 10 32bit mmio: [0xef700000-0xef700fff]
[ 0.800000] pci 0000:00:0f.5: PME# supported from D0 D3hot D3cold
[ 0.800000] pci 0000:00:0f.5: PME# disabled
[ 0.800000] pci 0000:00:0f.0: default IRQ router [1022:2090]
