lkml.org 
[lkml]   [2004]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Possible dcache BUG
    "Udo A. Steinberg" <us15@os.inf.tu-dresden.de> wrote:
    >
    > However, then as slab usage went skyrocket after 3 days, I started logging
    > these:
    >
    > [<c013e98f>] __kmalloc+0x6f/0x80
    > [<c0217af9>] acpi_os_allocate+0xa/0xb
    > [<c022b9b6>] acpi_ut_callocate+0x30/0x7a
    > [<c022b840>] acpi_ut_acquire_from_cache+0x9d/0xaa
    > [<c022c7d8>] acpi_ut_create_generic_state+0xa/0x12
    > [<c021b0b2>] acpi_ds_result_stack_push+0x8/0x25
    > [<c021b268>] acpi_ds_create_walk_state+0x53/0x70
    > [<c0227913>] acpi_ps_delete_parse_tree+0x20/0x89
    > [<c0227238>] acpi_ps_parse_loop+0x550/0x7bb
    > [<c02274f0>] acpi_ps_parse_aml+0x4d/0x1a1
    > [<c0219dd4>] acpi_ds_call_control_method+0xd3/0x1b3
    > [<c0227505>] acpi_ps_parse_aml+0x62/0x1a1
    > [<c0227d1f>] acpi_psx_execute+0x13b/0x194
    > [<c0225212>] acpi_ns_execute_control_method+0x3b/0x47
    > [<c02251c0>] acpi_ns_evaluate_by_handle+0x6f/0x86
    > [<c02250cd>] acpi_ns_evaluate_relative+0xa9/0xc3
    > [<c02249c3>] acpi_evaluate_object+0xf3/0x1a0
    > [<c0160f56>] link_path_walk+0xbe6/0xe70
    > [<c022f496>] acpi_battery_get_status+0x68/0x102
    > [<c022f9b6>] acpi_battery_read_state+0x88/0x275
    > [<c018124b>] proc_file_read+0xbb/0x250
    > [<c0152ea1>] vfs_read+0xd1/0x130
    > [<c0153171>] sys_read+0x41/0x70
    > [<c01040db>] syscall_call+0x7/0xb

    great, thanks for working that out.

    Random guess: acpi_evaluate_object() is returning an error but is
    allocating memory anyway.

    In acpi_battery_get_status():

    status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
    if (ACPI_FAILURE(status)) {
    ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _BST\n"));
    return_VALUE(-ENODEV);
    }

    Is that failure path being taken?
    -
    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: 2005-03-22 14:06    [W:0.021 / U:34.964 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site