[SOLVED] grip, asund and ripperx woes

slackline · Last edited by slackline on Fri Jul 10, 2015 8:12 am; edited 1 time in total

Hi,

I've been re-ripping my CDs to FLAC using Grip but noticed yesterday some very strange behaviour. The files are 'disappearing'. By way of example I ripped a CD yesterday...

Akkara · Posted: Thu Jun 11, 2015 9:24 am Post subject:

When you first rip with Grip, are the files OK? Do they play for you? And are you letting Grip finish the encoding before moving them elsewhere (if you move them elsewhere)?

And then after hibernate they shrink, is that right?

It might not be related to Grip at all. Two possibilities I can think of is, file system corruption possibly triggered by a buggy hibernating kernel; and inadvertent file changes by player apps trying to be "helpful".

To eliminate the possibility of any apps altering my music behind my back (whether accidentally by a mis-click, or due to bugs), I use a separate user, music, which owns the music files. And set them readable but not writeable to everyone else (including the directories).

As far as kernels, I recall seeing blurbs hinting at some issues with ext4 corruption on version 4.0.{1..4}, when used with RAID (and maybe also SSD), but I cannot vouch personally about this.
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slackline · Posted: Thu Jun 11, 2015 11:58 am Post subject:

Hi,

Thanks for taking the time to reply.

slackline · Posted: Fri Jun 12, 2015 8:50 am Post subject:

Minor update, but I think I've narrowed down the cause of this problem and its completely stumped me.

It appears to be something with Grip itself since after ripping a CD the files are listed fine....

Akkara · Posted: Fri Jun 12, 2015 11:01 am Post subject:

That is very odd.

Try this: Start grip from the command line in an xterm. Then rip a CD as before, but don't eject. When grip reports finished, go to a root window, and change the owner of the just-ripped files to something other than yourself (the music user, if you have made one, or just 'root' itself). Then eject. What happens? Any diagnostics get printed in the xterm where grip was started? Do the files remain OK, and do they play correctly. Also, try running soxi on them: are they really flacs?
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Many think that Dilbert is a comic. Unfortunately it is a documentary.

slackline · Posted: Fri Jun 12, 2015 1:05 pm Post subject:

Hi,

Thanks for taking the time to help me with this.

As suggested went to a root window, as ripped...

Akkara · Posted: Sat Jun 13, 2015 10:17 pm Post subject:

That's all very strange. Sounds like a bug in grip.

Changing the file ownership after ripping (without moving them) might be enough to let you limp along for now.
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Many think that Dilbert is a comic. Unfortunately it is a documentary.

slackline · Posted: Mon Jun 15, 2015 6:59 am Post subject:

I'm reaching the same conclusion too. Strange since it worked fine and Grip wasn't updated (project seems to have stagnated for some time, but then theres not much else required for a CD ripper).

For now I just kill grip from the command line which seems to leave the FLACs in tact.

Thanks for your time and assistance, appreciated.

slackline
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"Science is what we understand well enough to explain to a computer. Art is everything else we do." - Donald Knuth

Akkara · Posted: Mon Jun 15, 2015 7:26 am Post subject:

Just an off-chance thing: did you try re-emerging grip? Maybe one of the libraries had changed out from under it and left it confused? revdep-rebuild should normally find such things, but, perhaps a manual emerge -1 might help?
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Many think that Dilbert is a comic. Unfortunately it is a documentary.

slackline · Posted: Mon Jun 15, 2015 7:36 pm Post subject:

Sorry should have said I'd already tried rebuilding Grip with a one-off re-emerge.

I sync and update pretty much daily and after its completed do a 'dispatch-conf' followed by 'emerge --depclean && revdep-rebuild' so would hope that would have caught most things anyway.

I'll file a bug report so its logged and see if anyone else has similar problems or can replicate and solve it.

Thanks again for your help.
_________________
"Science is what we understand well enough to explain to a computer. Art is everything else we do." - Donald Knuth

slackline · Posted: Fri Jul 10, 2015 8:12 am Post subject:

This has now mysteriously resolved itself, not sure what helped, but have gone from sys-kernel/gentoo-sources-3.14.44 to sys-kernel/gentoo-sources-3.14.46.
_________________
"Science is what we understand well enough to explain to a computer. Art is everything else we do." - Donald Knuth