AW: Kernel fault with simple UIO interrupt driver in 2.6.30.4
Frank Prepelica
Frank.Prepelica at ubidyne.com
Tue Aug 4 21:04:11 EST 2009
Additional information:
The kernel fault already happens in 2.6.25
The driver works fine in 2.6.24
(Interrupt available in /proc/interrupts
and
/sys/class/uio/uio0)
Are there changes in 2.6.25 which could cause the kernel fault?
Any hint is appreaciated!
Thx and kind regards
Frank Prepelica
Software Design Engineer
Ubidyne GmbH
Lise-Meitner-Str.-14
89081 Ulm - Germany
Phone: +49 731 88 00 71 58
Fax: +49 731 88 00 71 99
Email: frank.prepelica at ubidyne.com
Homepage: www.ubidyne.com
Registered office: Ulm
District court of Ulm: HRB 5295
Managing Directors:
Dipl. Ing. Ken Hawk
Dipl. Ing. Beat Müller
Dipl. Ing. Mike Levis
> -----Ursprüngliche Nachricht-----
> Von: linuxppc-dev-bounces+frank.prepelica=ubidyne.com at lists.ozlabs.org
> [mailto:linuxppc-dev-bounces+frank.prepelica=ubidyne.com at lists.ozlabs.org]
> Im Auftrag von Frank Prepelica
> Gesendet: Dienstag, 4. August 2009 09:24
> An: michael at ellerman.id.au
> Cc: linuxppc-dev at ozlabs.org
> Betreff: AW: Kernel fault with simple UIO interrupt driver in 2.6.30.4
>
>
> Oh okay, I didnt think anybody would need it :)
>
>
>
> => bootm 2000000 - 3000000
> ## Booting image at 02000000 ...
> Image Name: Linux-2.6.30.4
> Created: 2009-08-04 7:06:18 UTC
> Image Type: PowerPC Linux Kernel Image (gzip compressed)
> Data Size: 3978238 Bytes = 3.8 MB
> Load Address: 00000000
> Entry Point: 00000000
> Verifying Checksum ... OK
> Uncompressing Kernel Image ... OK
> Booting using flat device tree at 0x3000000
> Using MPC831x RDB machine description
> Linux version 2.6.30.4 (root at vmlinux) (gcc version 4.0.0 (DENX ELDK 4.1
> 4.0.0)) #25 Tue Aug 4 09:05:58 CEST 2009
> console [udbg0] enabled
> setup_arch: bootmem
> mpc831x_rdb_setup_arch()
> arch: exit
> Zone PFN ranges:
> DMA 0x00000000 -> 0x00008000
> Normal 0x00008000 -> 0x00008000
> Movable zone start PFN for each node
> early_node_map[1] active PFN ranges
> 0: 0x00000000 -> 0x00008000
> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
> Kernel command line: BOOTLOADER_VER=MCU_bl_BPT_1.0.4
> NR_IRQS:512
> IPIC (128 IRQ sources) at fdffd700
> PID hash table entries: 512 (order: 9, 2048 bytes)
> clocksource: timebase mult[7800001] shift[22] registered
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Memory: 123888k/131072k available (5560k kernel code, 7020k reserved, 184k
> data, 93k bss, 2476k init)
> Kernel virtual memory layout:
> * 0xffffe000..0xfffff000 : fixmap
> * 0xfdffc000..0xfe000000 : early ioremap
> * 0xc9000000..0xfdffc000 : vmalloc & ioremap
> SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> Calibrating delay loop... 66.56 BogoMIPS (lpj=133120)
> Mount-cache hash table entries: 512
> net_namespace: 716 bytes
> NET: Registered protocol family 16
>
> PCI: Probing PCI hardware
> bio: create slab <bio-0> at 0
> SCSI subsystem initialized
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> NET: Registered protocol family 1
> Freescale PowerQUICC MII Bus: probed
> Freescale PowerQUICC MII Bus: probed
> JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
> msgmni has been set to 242
> alg: No test for stdrng (krng)
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A
> console handover: boot [udbg0] -> real [ttyS0]
> serial8250.0: ttyS1 at MMIO 0xe0004600 (irq = 17) is a 16550A
> brd: module loaded
> loop: module loaded
> eth0: Gianfar Ethernet Controller Version 1.2, 00:04:9f:ef:23:33
> eth0: Running with NAPI enabled
> eth0: 256/256 RX/TX BD ring size
> eth1: Gianfar Ethernet Controller Version 1.2, 00:e0:0c:00:7e:21
> eth1: Running with NAPI enabled
> eth1: 256/256 RX/TX BD ring size
> e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
> e100: Copyright(c) 1999-2006 Intel Corporation
> Fixed MDIO Bus: probed
> IRQ 20/IRQ3 Kernel Driver: IRQF_DISABLED is not guaranteed on shared IRQs
> Unable to handle kernel paging request for instruction fetch
> Faulting instruction address: 0x00000000
> Oops: Kernel access of bad area, sig: 11 [#1]
> MPC831x RDB
> Modules linked in:
> NIP: 00000000 LR: c004755c CTR: 00000000
> REGS: c7827d50 TRAP: 0400 Not tainted (2.6.30.4)
> MSR: 20001032 <ME,IR,DR> CR: 28000022 XER: 20000000
> TASK = c7828000[1] 'swapper' THREAD: c7826000
> GPR00: 00000002 c7827e00 c7828000 00000014 00000002 00000014 c73adb7c
> c06bb460
> GPR08: 00000000 00000000 00000014 00000000 00000000 00000000 07fff000
> 00000001
> GPR16: ffffffff 00000000 007fff00 07ff9794 00000000 00000000 007ffeb0
> 00000000
> GPR24: c73ad180 c02d70a4 c0574f28 00009032 00000014 00000000 c73adb40
> c0574f08
> Call Trace:
> [c7827e00] [c00474e4] 0xc00474e4 (unreliable)
> [c7827e20] [c0047754] 0xc0047754
> [c7827e50] [c019c568] 0xc019c568
> [c7827e90] [c019c7f8] 0xc019c7f8
> [c7827ea0] [c0177a80] 0xc0177a80
> [c7827ec0] [c0177b94] 0xc0177b94
> [c7827ee0] [c01764d8] 0xc01764d8
> [c7827f10] [c0177590] 0xc0177590
> [c7827f20] [c017703c] 0xc017703c
> [c7827f40] [c0178080] 0xc0178080
> [c7827f60] [c0319884] 0xc0319884
> [c7827f70] [c00038dc] 0xc00038dc
> [c7827fe0] [c03037c0] 0xc03037c0
> [c7827ff0] [c0010778] 0xc0010778
> Instruction dump:
> XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
> XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
> ---[ end trace 747097271ea314a9 ]---
> Kernel panic - not syncing: Attempted to kill init!
> Rebooting in 180 seconds..
>
>
>
>
>
>
>
>
> Frank Prepelica
> Software Design Engineer
>
> Ubidyne GmbH
> Lise-Meitner-Str.-14
> 89081 Ulm - Germany
>
> Phone: +49 731 88 00 71 58
> Fax: +49 731 88 00 71 99
> Email: frank.prepelica at ubidyne.com
> Homepage: www.ubidyne.com
>
> Registered office: Ulm
> District court of Ulm: HRB 5295
> Managing Directors:
> Dipl. Ing. Ken Hawk
> Dipl. Ing. Beat Müller
> Dipl. Ing. Mike Levis
>
> > -----Ursprüngliche Nachricht-----
> > Von: Michael Ellerman [mailto:michael at ellerman.id.au]
> > Gesendet: Dienstag, 4. August 2009 04:31
> > An: Frank Prepelica
> > Cc: linuxppc-dev at ozlabs.org
> > Betreff: Re: Kernel fault with simple UIO interrupt driver in 2.6.30.4
> >
> > On Mon, 2009-08-03 at 15:07 +0200, Frank Prepelica wrote:
> > > Hi all,
> > >
> > > due to a new revision of our custimized board, i need to port our
> > current kernel (2.6.24)
> > > to the latest kernel version 2.6.30.4.
> > >
> > > Among other things the UIO interrupt driver makes some trouble. The
> > driver runs
> > > smoothly on 2.6.24 but I'll get kernel faults when running in
> 2.6.30.4.
> >
> > You seem to have forgotten to post the log of the oops :)
> >
> > cheers
>
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