Problem with driver on preempt-rt linux

Problem with driver on preempt-rt linux

[王振兴]

Hi,everyone!
   I have a problem in testing the driver of my PCI-7841 card on preempt_rt linux. The driver is provided by the producer of the card.It runs well on regular linux.However, when I run it with preempt_rt linux kernel,although it's installed with no problem,the data of the can ports receive always have some errors.It just can't rightly receive the datas I transmit.Is it a driver problem?But I thought driver on preempt-rt linux should be the same with the regular one.
    Looking forward to the reply.Thanks.             		 	   		  

Re: Problem with driver on preempt-rt linux

[Sebastian Andrzej Siewior]

* 王振兴 | 2014-07-24 11:56:22 [+0000]:

>Hi,everyone!
>   I have a problem in testing the driver of my PCI-7841 card on preempt_rt linux. The driver is provided by the producer of the card.It runs well on regular linux.However, when I run it with preempt_rt linux kernel,although it's installed with no problem,the data of the can ports receive always have some errors.It just can't rightly receive the datas I transmit.Is it a driver problem?But I thought driver on preempt-rt linux should be the same with the regular one.

If the driver has been written properly in terms of locking and API then
there should be no problem after re-compiling. There is however a
sja1000 driver in kernel, I suggest you try that one.

>    Looking forward to the reply.Thanks.             		 	   		  N嫥叉靣笡y氊b瞂千v豝?)藓{.n?+壏{碑郜z?"炟^n噐■?\x1a侂h櫒璀?&Ⅷ\x1e瓽珴閔?\x03(殠娸"濟\x1a?^[m??飦赇z罐枈帼f＂穐殘坢

Sebastian
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