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    SubjectRe: Oops with oprofile + RT preempt 2.6.11-rc2-RT-V0.7.37-01
    On Sun, 13 Feb 2005 at 01:07 +0000, Lee Revell wrote:

    > Are there any known incompatibilities with oprofile and the RT preempt patch?
    >
    > Lee
    >
    > Oops: 0000 [#1]
    > PREEMPT

    > alloc
    > CPU: 0
    > EIP: 0060:[oprofilefs_str_to_user+21/64] Not tainted VLI
    > EFLAGS: 00010246 (2.6.11-rc2-RT-V0.7.37-01)
    > EIP is at oprofilefs_str_to_user+0x15/0x40
    > eax: 00000000 ebx: 00000000 ecx: ffffffff edx: 00000000
    > esi: d593b6a0 edi: 00000000 ebp: cb966f6c esp: cb966f68
    > ds: 007b es: 007b ss: 0068 preempt: 00000001
    > Process cat (pid: 3290, threadinfo=cb966000 task=d083ce10)
    > Stack: cb966fa8 cb966f90 c01529ec 00000000 0804d038 00001000 cb966fa8 d593b6a0
    > fffffff7 0804d038 cb966fbc c0152cc1 d593b6a0 0804d038 00001000 cb966fa8
    > 00000000 00000000 00000000 00000003 00001000 cb966000 c01026a4 00000003

    oprofile_files.c:
    oprofilefs_str_to_user(oprofile_ops.cpu_type, buf, count, offset);

    oprofilefs.c:
    ssize_t oprofilefs_str_to_user(char const * str, char __user * buf,
    size_t count, loff_t * offset)
    {
    return simple_read_from_buffer(buf, count, offset, str, strlen(str));
    }

    oprofile_ops.cpu_type == NULL, this has been fixed 3 weeks ago,
    can you retry with -rc4 ?

    Philippe Elie

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