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ShadowWizzard
n00b
Joined: 04 Mar 2006
Posts: 70
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 Posted: Wed Apr 12, 2006 2:55 pm Post subject: /dev/rtc - device or resource busy |
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I discovered that mplayer is unable
to use /dev/rtc. It happened after recompile whole
system including kernel with GCC 4.1
The problem is that
| Code: | cat /dev/rtc
cat: /dev/rtc: Device or resource busy |
Even root can't do it.
And here is result of cat /proc/driver/rtc
| Code: | rtc_time : 14:53:11
rtc_date : 2006-04-12
rtc_epoch : 1900
alarm : 00:00:00
DST_enable : no
BCD : yes
24hr : yes
square_wave : no
alarm_IRQ : no
update_IRQ : no
periodic_IRQ : no
periodic_freq : 1024
batt_status : okay
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Any ideas what is wrong ? |
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ShadowWizzard
n00b
Joined: 04 Mar 2006
Posts: 70
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| Posted: Fri Apr 14, 2006 12:20 pm Post subject: Funny ... |
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What is funny it seems related to startup scripts..
If break up the startup and go single user without newtwork etc.etc.
The works well ...
Any Ideas ?
How to check which process own device ? |
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ShadowWizzard
n00b
Joined: 04 Mar 2006
Posts: 70
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| Posted: Sun Apr 16, 2006 7:47 pm Post subject: Funny thing ... |
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Ok .. here we go again:
1) The didn't show nothing !!!
2) By intuition I tried to disable one by one startup scripts. And finally I found that it's :
deamon that's locks the /dev/rtc ... but why when unused (I mean no midi is playing ?)
the general question is why lsof didn't show the PID od process which own /dev/rtc ??????? !!!!!!  |
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PaulBredbury
Watchman
Joined: 14 Jul 2005
Posts: 7310
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| Posted: Thu May 25, 2006 2:56 am Post subject: |
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| I confirm that timidity++ hogs /dev/rtc. I haven't seen a solution. |
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jmbsvicetto
Moderator
Joined: 27 Apr 2005
Posts: 4735
Location: Angra do Heroísmo (PT)
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| Posted: Tue Oct 17, 2006 2:40 am Post subject: |
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Hi.
I was asked to post the following:
| Branimir Amidić wrote: | Recompile kernel with RTC Timer Support module turned off.
| Code: |
Device Drivers --->
Sound --->
<M> Sound Card Support -->
Advanced Linux Sound Architecture --->
< > RTC Timer Support
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_________________
Jorge.
Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh
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