Futex Wait Called

[pandi k]

hi

Do u meant that upgrade fedora 7 to 1 and this problem with FC7 or kernel
version?


On Thu, Oct 22, 2009 at 6:34 PM, Aioanei Rares <schaiba at gmail.com> wrote:

> pandi k wrote:
>
>> Hi
>>
>> I am working on fedora core 7, kernel version 2.6.21, gcc version 4.1.2. I
>> have my user space application which communicate with my char driver using
>> write and read system calls. I have a thread in application to send data to
>> driver and concurrently a signal handler(user space) is register. write
>> calls is invoking continuously and read call is also invoking continuously
>> on notification from driver. Here am facing a problem of  "futex_wait"  at
>> one time. Even though my user space application has no mutex locking,
>> FUTEX_WAIT is called and nothing proceeds after this.
>>
>> I got below lines form strace of my process and always getting lock at
>> same address.
>>
>> --- SIGRT_15 (Real-time signal 13) @ 0 (0) ---
>> futex(0x4aa700b0, FUTEX_WAIT, 2, NULL
>>
>> please give me some tips to solve this issue or what could be reason for
>> above things.
>> if need any more info, i will give u.
>>
>>
>> thanks...
>>
>> regards,
>> pandi.k
>>
> Tip numero uno : upgrade to a current/supported version of Fedora.
>
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