lkml.org 
[lkml]   [2007]   [Jul]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    SubjectRe: Linus 2.6.23-rc1: ACPI-related oops on x86_64
    Date
    On Monday 23 July 2007 05:50, Mel Gorman wrote:

    > This was seen on a machine on test.kernel.org;
    >
    > Unable to handle kernel NULL pointer dereference at 0000000000000000
    > RIP:
    > [<ffffffff8037379b>] acpi_processor_throttling_seq_show+0xa7/0xd6
    > PGD 3bd9e067 PUD 3bc6a067 PMD 0
    > Oops: 0000 [1] SMP
    > CPU 3
    > Modules linked in: video output button battery floppy ac lp parport_pc
    > parport nvram amd_rng rng_core i2c_amd756 i2c_core
    > Pid: 1522, comm: head Not tainted 2.6.23-rc1-autokern1 #1
    > RIP: 0010:[<ffffffff8037379b>] [<ffffffff8037379b>]
    > acpi_processor_throttling_seq_show+0xa7/0xd6
    > RSP: 0018:ffff81003c4a5e48 EFLAGS: 00010246
    > RAX: 0000000000000020 RBX: ffff810037ea1800 RCX: 0000000000000000
    > RDX: 000000000000002a RSI: ffffffff80599c02 RDI: ffff810037c6a9c0
    > RBP: ffff810037c6a9c0 R08: ffff81003c3e3051 R09: ffff810037c6a9c0
    > R10: ffffffffffffffff R11: ffffffff80373e66 R12: 0000000000000000
    > R13: 0000000000000000 R14: 0000000000000000 R15: 00007fffd59dcd40
    > FS: 00002b7ad50e36f0(0000) GS:ffff81003ee56b40(0000) knlGS:0000000000000000
    > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    > CR2: 0000000000000000 CR3: 000000003bd9b000 CR4: 00000000000006e0
    > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    > Process head (pid: 1522, threadinfo ffff81003c4a4000, task ffff81003ee81040)
    > Stack: ffff81003eed7180 ffff810037c6a9c0 0000000000000001 0000000000000001
    > 0000000000002000 ffffffff802a77b3 ffff81003c4a5f50 ffff81003e2f8ec0
    > ffff810037c6a9f0 ffff81003de65000 0000000000000000 fffffffffffffffb
    > Call Trace:
    > [<ffffffff802a77b3>] seq_read+0x105/0x28e
    > [<ffffffff802a76ae>] seq_read+0x0/0x28e
    > [<ffffffff802c8501>] proc_reg_read+0x80/0x9a
    > [<ffffffff8028eb3d>] vfs_read+0xcb/0x153
    > [<ffffffff8028eed9>] sys_read+0x45/0x6e
    > [<ffffffff8020bc6e>] system_call+0x7e/0x83
    > FATAL: Error inserting acpi_cpufreq
    > (/lib/modules/2.6.23-rc1-autokern1/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko):
    > No such device
    >
    > Full oops is at http://test.kernel.org/abat/100837/debug/console.log
    > Config file at http://test.kernel.org/abat/100837/build/dotconfig

    try this,
    thanks,
    -Len

    Subject: fix oops due to typo in new throttling code
    From: Luming Yu <luming.yu@gmail.com>


    Signed-off-by: Luming Yu <luming.yu@gmail.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Len Brown <len.brown@intel.com>

    ---

    drivers/acpi/processor_throttling.c | 6 ++++--
    1 files changed, 4 insertions(+), 2 deletions(-)

    Index: linus/drivers/acpi/processor_throttling.c
    ===================================================================
    --- linus.orig/drivers/acpi/processor_throttling.c
    +++ linus/drivers/acpi/processor_throttling.c
    @@ -658,18 +658,20 @@ static int acpi_processor_throttling_seq
    pr->throttling.state_count - 1);

    seq_puts(seq, "states:\n");
    - if (acpi_processor_get_throttling == acpi_processor_get_throttling_fadt)
    + if (pr->throttling.acpi_processor_get_throttling ==
    + acpi_processor_get_throttling_fadt) {
    for (i = 0; i < pr->throttling.state_count; i++)
    seq_printf(seq, " %cT%d: %02d%%\n",
    (i == pr->throttling.state ? '*' : ' '), i,
    (pr->throttling.states[i].performance ? pr->
    throttling.states[i].performance / 10 : 0));
    - else
    + } else {
    for (i = 0; i < pr->throttling.state_count; i++)
    seq_printf(seq, " %cT%d: %02d%%\n",
    (i == pr->throttling.state ? '*' : ' '), i,
    (int)pr->throttling.states_tss[i].
    freqpercentage);
    + }

    end:
    return 0;
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/
    \
     
     \ /
      Last update: 2007-07-23 19:21    [W:4.075 / U:0.080 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site