lkml.org 
[lkml]   [2012]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 4/4] clk: zynq: Use of_init_clk_data()
    Hi Stephen,

    I guess Josh is the better person to talk about this, since he created the
    patches regarding common clock for mainline, but I tried running your series
    and ran into this:

    Unable to handle kernel NULL pointer dereference at virtual address 0000002a
    pgd = c0004000
    [0000002a] *pgd=00000000
    Internal error: Oops: 5 [#1] PREEMPT ARM
    Modules linked in:
    CPU: 0 Tainted: G W (3.7.0-rc3-00025-gc11ffdd-dirty #246)
    PC is at __clk_prepare+0x20/0x80
    LR is at clk_prepare+0x2c/0x44
    pc : [<c031659c>] lr : [<c0316628>] psr: a0000153
    sp : ee02fdd0 ip : ee02fde8 fp : ee02fde4
    r10: 00000000 r9 : 00000000 r8 : c0587884
    r7 : 00000000 r6 : c05aab98 r5 : fffffffe r4 : fffffffe
    r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : fffffffe
    Flags: NzCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel
    Control: 18c5387d Table: 00004059 DAC: 00000015
    Process swapper (pid: 1, stack limit = 0xee02e230)
    Stack: (0xee02fdd0 to 0xee030000)
    fdc0: c05b6a18 fffffffe ee02fdfc ee02fde8
    fde0: c0316628 c0316588 ee085400 fffffffe ee02fe24 ee02fe00 c03c1358 c0316608
    fe00: c03c1328 ee085410 c05aab98 c05aab98 00000000 c0587884 ee02fe34 ee02fe28
    fe20: c026a5c0 c03c1334 ee02fe5c ee02fe38 c0268f50 c026a5a8 c026a7b8 c0313ac0
    fe40: ee085410 ee085410 ee085444 c05aab98 ee02fe7c ee02fe60 c02691c0 c0268e18
    fe60: c0269150 c05aab98 c0269150 00000000 ee02fea4 ee02fe80 c0267320 c026915c
    fe80: ee00948c ee096df0 c021e02c c05aab98 ed9a0bc0 c05ab3a8 ee02feb4 ee02fea8
    fea0: c0268a28 c02672d0 ee02fee4 ee02feb8 c0268408 c0268a0c c04b56d1 00000000
    fec0: ee02fee4 c05aab98 c0565e60 00000000 0000006f c0587884 ee02ff14 ee02fee8
    fee0: c0269990 c0268340 00000000 00000000 c0565e60 00000000 0000006f c0587884
    ff00: 00000000 00000000 ee02ff24 ee02ff18 c026a9cc c02698f0 ee02ff3c ee02ff28
    ff20: c0565e84 c026a984 ee02e000 ee02ff40 ee02ff74 ee02ff40 c00086f8 c0565e6c
    ff40: c04f72e4 00000000 ee02ff74 00000006 00000006 c0571dac c0571d8c 0000006f
    ff60: c0587884 00000000 ee02ffac ee02ff78 c03bf9c4 c0008664 00000006 00000006
    ff80: c05511a8 00000000 ee02ffac 00000000 c03bf8cc 00000000 00000000 00000000
    ffa0: 00000000 ee02ffb0 c000ea98 c03bf8d8 00000000 00000000 00000000 00000000
    ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 0158ec21 0eced1ff
    [<c031659c>] (__clk_prepare+0x20/0x80) from [<c0316628>] (clk_prepare+0x2c/0x44)
    [<c0316628>] (clk_prepare+0x2c/0x44) from [<c03c1358>] (xuartps_probe+0x30/0x1ac
    )
    [<c03c1358>] (xuartps_probe+0x30/0x1ac) from [<c026a5c0>] (platform_drv_probe+0x
    24/0x28)
    [<c026a5c0>] (platform_drv_probe+0x24/0x28) from [<c0268f50>] (driver_probe_devi
    ce+0x144/0x344)
    [<c0268f50>] (driver_probe_device+0x144/0x344) from [<c02691c0>] (__driver_attac
    h+0x70/0x94)
    [<c02691c0>] (__driver_attach+0x70/0x94) from [<c0267320>] (bus_for_each_dev+0x5
    c/0x8c)
    [<c0267320>] (bus_for_each_dev+0x5c/0x8c) from [<c0268a28>] (driver_attach+0x28/
    0x30)
    [<c0268a28>] (driver_attach+0x28/0x30) from [<c0268408>] (bus_add_driver+0xd4/0x
    254)
    [<c0268408>] (bus_add_driver+0xd4/0x254) from [<c0269990>] (driver_register+0xac
    /0x14c)
    [<c0269990>] (driver_register+0xac/0x14c) from [<c026a9cc>] (platform_driver_reg
    ister+0x54/0x68)
    [<c026a9cc>] (platform_driver_register+0x54/0x68) from [<c0565e84>] (xuartps_ini
    t+0x24/0x44)
    [<c0565e84>] (xuartps_init+0x24/0x44) from [<c00086f8>] (do_one_initcall+0xa0/0x
    170)
    [<c00086f8>] (do_one_initcall+0xa0/0x170) from [<c03bf9c4>] (kernel_init+0xf8/0x
    2ac)
    [<c03bf9c4>] (kernel_init+0xf8/0x2ac) from [<c000ea98>] (ret_from_fork+0x14/0x20
    )
    Code: e8bd4000 e2504000 01a05004 0a000015 (e594302c)
    ---[ end trace 1b75b31a2719ed1d ]---
    Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b


    A probably unique thing I do is, I set the status of uart0 to disabled. This way
    I can reuse my rootfs which does not run getty on ttyPS1. And this worked fine
    before.

    Soren




    \
     
     \ /
      Last update: 2012-12-19 21:21    [W:4.023 / U:0.124 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site