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Message-ID: <4F62FFA6.4040101@openmobilefree.net>
Date:   Fri, 16 Mar 2012 16:53:58 +0800
From:   Xiangfu Liu <xiangfu@openmobilefree.net>
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To:     john stultz <johnstul@us.ibm.com>
CC:     Matt Turner <mattst88@gmail.com>, linux-mips@linux-mips.org,
        rtc-linux@googlegroups.com
Subject: Re: select() to /dev/rtc0 to wait for clock tick timed out
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Hi

After I update kernel to linux v3.2.1. the problem still there.
Please give me some advice, how to fix this issue?

Thanks

On 12/30/2011 04:31 PM, Xiangfu Liu wrote:
> Hi John Stultz
>
> I meet the same problem on MIPS jz4740, here is the step I try to find out the problem:
>
> 1. when I direct run 'hwclock' it will give
>     "select() to /dev/rtc0 to wait for clock tick timed out"
>     attachment 'hwclock.time.out' is the strace log
>
> 2. run 'rtctest' program. it works fine. the output is here[1]
>
> 3. after 'rtctest', run 'hwclock' again. then it works fine
>     attachment 'hwclock.wors' is the strace log
>
> without 'rtctest' run first. 'hwclock' never works.
> the hwclock works fine in 2.6.27.6, failed under '3.0.0'
>
> Please give me some tips how to fix this problem. shoule I modify the driver code
> or is that relate to 'CONFIG_RTC_INTF_DEV_UIE_EMUL'?
>
> thanks in advance.
> xiangfu