'Re: Amarok is bugging udisks-daemon'

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List:       amarok-devel
Subject:    Re: Amarok is bugging udisks-daemon
From:       Andreas Roth <aroth () arsoft-online ! com>
Date:       2011-07-25 5:29:04
Message-ID: 4E2CFF20.40709 () arsoft-online ! com
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Hi Ralf,

thanks for you answer.
My first thought was to disable all stuff in amarok which has anything 
to do with disc. I also disabled the 'watch folders for changes', but 
the issue remained.
In my configuration i only configure one folder to be included in the 
collection and this folder has about 3300 sub-folders.

Is there any way to get more information what might cause this kind of 
trouble? Any kind of logging on amarok or KDE?

Regards,
Andreas

On 2011-07-24 11:58, Ralf Engels wrote:
> Hi Andreas,
> 
> Previously Amarok was frequently checking the modification time of all
> collection directories to check for changes.
> 
> Since 2.4.1 we are using the KDirWatcher. That's probably what you are
> seeing.
> 
> The solution of constantly checking modification times is very
> primitive.
> The KDirWatcher is not much smarter it seems. For example it seems to
> have a limit of around 8000 watched directories. It also takes ages to
> recursively add some directories.
> 
> I would guess that the errors you are seeing are from this mechanism.
> However I am just using it. Maybe you could talk to some KDE people.
> 
> Cheers,
> Ralf
> 
> 
> > Date: Sun, 24 Jul 2011 09:42:02 +0200
> > From: Myriam Schweingruber<myriam@kde.org>
> > Subject: Fwd: Amarok is bugging udisks-daemon
> > To: Amarok Developers<amarok-devel@kde.org>
> > Message-ID:
> > 	<CAGzoOB87jPZ=LptGWvgPgxf2ZT9bqDQyWSaMhCnoKGJmeWQ83A@mail.gmail.com>
> > Content-Type: text/plain; charset=UTF-8
> > 
> > FYI
> > 
> > Could somebody answer this? Don't forget to Cc the sender, he
> > submitted this through the web interface.
> > 
> > Regards, Myriam
> > 
> > 
> > ---------- Forwarded message ----------
> > From: Andreas Roth<aroth@arsoft-online.com>
> > Date: Fri, Jul 22, 2011 at 09:49
> > Subject: Amarok is bugging udisks-daemon
> > To: amarok@kde.org
> > 
> > 
> > Hi,
> > 
> > two or three days ago i noticed that the udisks-daemon is constantly active.
> > It takes about 1-5% of CPU. At the same time the dbus-daemon also takes the
> > same amount of CPU.
> > I found out that these daemons are quite active only when amarok is running.
> > When i close amarok, the daemon activity returns to normal (nearly zero). I
> > also tried to disable all plugins in amarok and disable the 'watch for file
> > changes' on the collection scanner.
> > I've run a strace against the udisks-daemon and writes the following message
> > to stderr:
> > write(2, "\n** (udisks-daemon:2797): WARNING **: Property get or set does not
> > have an interface string as first arg\n\n", 106)
> > The other functions which are repeated are:
> > ...
> > sendmsg(3, {msg_name(0)=NULL,
> > msg_iov(2)=[{"l\2\1\1\10\0\0\0\30\216\f\0\37\0\0\0\6\1s\0\5\0\0\0:1.69\0\0\0\5\1u\0\202\355\0\0\10\1g\0\1v\0\0",
> >  48}, {"\1b\0\0\0\0\0\0", 8}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) =
> > 56
> > recvmsg(3, {msg_name(0)=NULL,
> > msg_iov(1)=[{"l\1\0\0010\0\0\0\203\355\0\0\236\0\0\0\1\1o\0$\0\0\0/org/freedesktop \
> > /UDisks/devices/sda5\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0 \
> > \0\0org.freedesktop.DBus.Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\2ss\0\7\ \
> > 1s\0\5\0\0\0:1.69\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\7\0\0\0IdUsage\0OpticalDisc\0\0e\0\0\1\0\1?
> >  \0\0\0\21\2\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/devices/sdb\0\0\0\ \
> > 0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus. \
> > Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\2ss\0\7\1s\0\5\0\0\0:1.22\0\0\0\3 \
> > 5\0\0\0org.freedesktop.UDisks.Device\0\0\0\26\0\0\0DeviceIsMediaAvailable\0\0\0\0\1\0\1@\0\0\0\1\32\0\0\0\0\0\0\210H\267G\316\177\0\0\210H\267G\316\177\0\0
> >  \32\7\2\0\0\0\0
> > \32\7\2\0\0\0\0devices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1 \
> > s\0\37\0\0\0org.freedesktop.DBus.Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\ \
> > 2ss\0\7\1s\0\5\0\0\0:1.41\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\27\0\0 \
> > \0DriveMediaCompatibility\0\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/dev \
> > ices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0\0\0org.fr \
> > eedesktop.DBus.Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\2ss\0\7\1s\0\5\0\0 \
> > \0\0\0\7\1s\0\5\0\0\0:1.39\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\r\0\0 \
> > \0DeviceIsDrive\0l\1\0\1@\0\0\0\214'\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/devices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0o"...,
> >  2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 224
> > recvmsg(3, 0x7fffab844e40, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily
> > unavailable)
> > sendmsg(3, {msg_name(0)=NULL,
> > msg_iov(2)=[{"l\2\1\1\r\0\0\0\31\216\f\0\37\0\0\0\6\1s\0\5\0\0\0:1.69\0\0\0\5\1u\0\203\355\0\0\10\1g\0\1v\0\0",
> >  48}, {"\1s\0\0\4\0\0\0raid\0", 13}], msg_controllen=0, msg_flags=0},
> > MSG_NOSIGNAL) = 61
> > recvmsg(3, {msg_name(0)=NULL,
> > msg_iov(1)=[{"l\1\0\1\0\0\0\0\205\355\0\0\226\0\0\0\1\1o\0$\0\0\0/org/freedesktop/ \
> > UDisks/devices/sdb8\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0\ \
> > 0\0org.freedesktop.DBus.Properties\0\3\1s\0\6\0\0\0GetAll\0\0\7\1s\0\5\0\0\0:1.69\ \
> > 0\0\0:1.69\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\7\0\0\0IdUsage\0\0pticalDisc\0\0e\0\0\1\0\1?
> >  \0\0\0\21\2\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/devices/sdb\0\0\0\ \
> > 0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus. \
> > Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\2ss\0\7\1s\0\5\0\0\0:1.22\0\0\0\3 \
> > 5\0\0\0org.freedesktop.UDisks.Device\0\0\0\26\0\0\0DeviceIsMediaAvailable\0\0\0\0\1\0\1@\0\0\0\1\32\0\0\0\0\0\0\210H\267G\316\177\0\0\210H\267G\316\177\0\0
> >  \32\7\2\0\0\0\0
> > \32\7\2\0\0\0\0devices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1 \
> > s\0\37\0\0\0org.freedesktop.DBus.Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\ \
> > 2ss\0\7\1s\0\5\0\0\0:1.41\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\27\0\0 \
> > \0DriveMediaCompatibility\0\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/dev \
> > ices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0org.freedesktop.UDisks\0\0\2\1s\0\37\0\0\0org.fr \
> > eedesktop.DBus.Properties\0\3\1s\0\3\0\0\0Get\0\0\0\0\0\10\1g\0\2ss\0\7\1s\0\5\0\0 \
> > \0\0\0\7\1s\0\5\0\0\0:1.39\0\0\0\35\0\0\0org.freedesktop.UDisks.Device\0\0\0\r\0\0 \
> > \0DeviceIsDrive\0l\1\0\1@\0\0\0\214'\0\0\236\0\0\0\1\1o\0#\0\0\0/org/freedesktop/UDisks/devices/sdb\0\0\0\0\0\6\1s\0\26\0\0\0o"...,
> >  2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 168
> > recvmsg(3, 0x7fffab844e40, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily
> > unavailable)
> > sendmsg(3, {msg_name(0)=NULL,
> > msg_iov(2)=[{"l\3\1\1d\0\0\0\32\216\f\0W\0\0\0\6\1s\0\5\0\0\0:1.69\0\0\0\4\1s\0(\0 \
> > \0\0org.freedesktop.DBus.Error.UnknownMethod\0\0\0\0\0\0\0\0\5\1u\0\205\355\0\0\10\1g\0\1s\0\0",
> >  104}, {"_\0\0\0Method \"GetAll\" with signature \"\" on interface
> > \"org.freedesktop.DBus.Properties\" doesn't exist\n\0", 100}],
> > msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 204
> > ...
> > 
> > What's really strange to me it the response from udisks-daemon telling the
> > GetAll method does not exist on org.freedesktop.DBus.Properties. What does
> > this mean?
> > 
> > Regards,
> > Andreas
> > 
> > _______________________________________________
> > Amarok mailing list
> > Amarok@kde.org
> > https://mail.kde.org/mailman/listinfo/amarok
> > 
> > 
> > 
> > -- 
> > Protect your freedom and join the Fellowship of FSFE:
> > http://www.fsfe.org
> > Please don't send me proprietary file formats,
> > use ISO standard ODF instead (ISO/IEC 26300)
> > 
> 

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