From: Michael Neuling <mikey@neuling.org>
To: skumar@linux.vnet.ibm.com
Cc: Poornima Nayak <Poornima.Nayak@in.ibm.com>,
linuxppc-dev@ozlabs.org, akpm@linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [BUG]2.6.25-rc6:Unable to handle kernel paging request
Date: Tue, 18 Mar 2008 17:04:28 +0100 [thread overview]
Message-ID: <22152.1205856268@neuling.org> (raw)
In-Reply-To: <20080318052921.GA32259@in.ibm.com>
In message <20080318052921.GA32259@in.ibm.com> you wrote:
> Hi,
> I found the following bug at kernel boot up on my power machine
> with 2.6.25-rc6 kernel.
>
> USB Mass Storage support registered.
> mice: PS/2 mouse device common for all mice
> Unable to handle kernel paging request for data at address
> 0xd00008000000002e
> Faulting instruction address: 0xc00000000074ded8
> cpu 0x0: Vector: 300 (Data Access) at [c00000003e073aa0]
> pc: c00000000074ded8: .f71805f_find+0x44/0x32c
> lr: c00000000074e1f8: .f71805f_init+0x38/0x194
> sp: c00000003e073d20
> msr: 8000000000009032
> dar: d00008000000002e
> dsisr: 42000000
> current = 0xc0000000220851c0
> paca = 0xc0000000007c2700
> pid = 1, comm = swapper
> enter ? for help
> [c00000003e073dc0] c00000000074e1f8 .f71805f_init+0x38/0x194
> [c00000003e073ea0] c000000000724bdc .kernel_init+0x204/0x3c8
> [c00000003e073f90] c000000000025df4 .kernel_thread+0x4c/0x68
Is this an all yes or random config? CONFIG_SENSORS_F71805F doesn't
appear in any of the powerpc def configs.
Anyway, I'm guessing the driver hasn't checked the device tree and is
probing somewhere it shouldn't.
Mikey
>
> For further reference some of the debug info is:
> 0:mon> r
> R00 = d00008000000002e R16 = 4000000001c00000
> R01 = c00000003e073d20 R17 = c00000000066ecc8
> R02 = c0000000008f4458 R18 = 0000000000000000
> R03 = 000000000000002e R19 = 00000000003a1000
> R04 = c00000003e073e30 R20 = 000000000235a3d0
> R05 = c00000003e073e34 R21 = c00000000075a3d0
> R06 = 0000000024000044 R22 = 000000000235a640
> R07 = c000000000010bcc R23 = c00000000075a640
> R08 = c00000003e073570 R24 = c00000000066fe90
> R09 = d000080000000000 R25 = 0000000000000000
> R10 = cf000000009c2d60 R26 = c00000003e070000
> R11 = ffffffffffffff87 R27 = c00000003e073e30
> R12 = 0000000000000000 R28 = c00000003e073e34
> R13 = c0000000007c2700 R29 = 000000000000002e
> R14 = 0000000000000000 R30 = c000000000880278
> R15 = c000000000670448 R31 = c00000000078e050
> pc = c00000000074ded8 .f71805f_find+0x44/0x32c
> lr = c00000000074e1f8 .f71805f_init+0x38/0x194
> msr = 8000000000009032 cr = 24000042
> ctr = c00000000074e1c0 xer = 0000000000000005 trap = 300
> dar = d00008000000002e dsisr = 42000000
>
> 0:mon> e
> cpu 0x0: Vector: 300 (Data Access) at [c00000003e073aa0]
> pc: c00000000074ded8: .f71805f_find+0x44/0x32c
> lr: c00000000074e1f8: .f71805f_init+0x38/0x194
> sp: c00000003e073d20
> msr: 8000000000009032
> dar: d00008000000002e
> dsisr: 42000000
> current = 0xc0000000220851c0
> paca = 0xc0000000007c2700
> pid = 1, comm = swapper
>
> 0:mon> di %pc
> c00000000074ded8 7d6919ae stbx r11,r9,r3
> c00000000074dedc 39000001 li r8,1
> c00000000074dee0 990d01dc stb r8,476(r13)
> c00000000074dee4 e93f0000 ld r9,0(r31)
> c00000000074dee8 7c034a14 add r0,r3,r9
> c00000000074deec 7c0004ac sync
> c00000000074def0 7d6919ae stbx r11,r9,r3
> c00000000074def4 990d01dc stb r8,476(r13)
> c00000000074def8 38800023 li r4,35
> c00000000074defc 4bcc95e1 bl c0000000004174dc #
> .superio_inw+0x0/0x134
> c00000000074df00 3940ffed li r10,-19
> c00000000074df04 5463043e clrlwi r3,r3,16
> c00000000074df08 2f831934 cmpwi cr7,r3,6452
> c00000000074df0c 409e0260 bne cr7,c00000000074e16c #
> .f71805f_find+0x2d8/0x32c
> c00000000074df10 e93e8038 ld r9,-32712(r30)
> c00000000074df14 a0690000 lhz r3,0(r9)
> 0:mon>
>
> Thanks
> Sudhir Kumar
> ISTL, IBM
> Bangalore
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>
next prev parent reply other threads:[~2008-03-18 16:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-18 5:29 [BUG]2.6.25-rc6:Unable to handle kernel paging request Sudhir Kumar
2008-03-18 16:04 ` Michael Neuling [this message]
2008-03-19 3:57 ` Paul Mackerras
2008-03-20 18:42 ` Sudhir Kumar
2008-03-21 9:07 ` Paul Mackerras
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