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Author Topic: always crc error on files.rar  (Read 5692 times)

roro

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always crc error on files.rar
« on: August 26, 2005, 10:32:27 PM »

hello, i use amule2.0.3 on a debian testing
when i download files, i always have a crc error on the .rar files, and some "jumps" on mp3 files.

i wonder why that ALWAYS happens... is my filesystem (ext3) incompatible with amule ? my locales (fr_FR@iso-8859-15) ? is amule checking the hash when it downloads ?

i am lost ... thank for your ideas !!
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Vollstrecker

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Re: always crc error on files.rar
« Reply #1 on: August 27, 2005, 12:48:39 AM »

Are you sure that you aren't on a fake-server?
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roro

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Re: always crc error on files.rar
« Reply #2 on: August 27, 2005, 01:35:03 PM »

I only use Razorback on 192.245.244.243 so the matter isn't here I think.
anyway, thank you for your idea :)
« Last Edit: August 27, 2005, 01:40:48 PM by roro »
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roro

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Re: always crc error on files.rar
« Reply #3 on: August 27, 2005, 04:11:17 PM »

I don't understand at all : I have an archive with 3 files corrupted and all the others OK when I uncompress it under linux.
when I try to uncompress the same archive under windows, I still have 3 files corrupted but they are not the same than under linux !!!!

 8o
« Last Edit: August 27, 2005, 04:11:48 PM by roro »
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thedude0001

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RE: always crc error on files.rar
« Reply #4 on: August 27, 2005, 06:35:25 PM »

Quote
Originally posted by roro
i wonder why that ALWAYS happens... is my filesystem (ext3) incompatible with amule ? my locales (fr_FR@iso-8859-15) ? is amule checking the hash when it downloads ?

amule checks the hash of every part while downloading and checks the hash of the whole file again when it finishes the download. ext3 (like any other file system your kernel supports) is just fine and your locale shouldn't affect anything.

(Sorry for not providing new ideas, just ruling some things out ;) )
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roro

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Re: always crc error on files.rar
« Reply #5 on: August 29, 2005, 12:23:27 PM »

thank you thedude0001.

I made an experience today :

I have created an archive .rar on my WindowsXP station (in order to make all as if a peer shared a new archive he made) and I transferred it on my Linux station with Samba.
And the correct archive created under Windows made CRC errors when I tried to uncompress it under Linux !!
and when I transferred back the archive to the Windows station, it made CRC errors when I uncompressed it !

I tried to bypass Samba and the network transferring the archive with an USB key : from Windows to Linux, the uncompressed archive under Linux was correct.
but when I transferred back the archive to Windows, the CRC errors came back !

So what ? I don't understand at all, and moreover it doesn't explain why my downloaded files are corrupted before I transfer them!

thank for your help, and sorry for my poor english, I hope I can be understood.
I'll try to explain my problem on some Linux forums too. :(
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stefanero

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Re: always crc error on files.rar
« Reply #6 on: August 29, 2005, 12:37:41 PM »

I had those crc error aswell a while ago, its probably your hdd which is brocken, at least mine was....
check dmesg for some hdd failers, and check hdparms if dma for example is still working as it should
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thedude0001

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Re: always crc error on files.rar
« Reply #7 on: August 29, 2005, 12:41:52 PM »

Hmm, I've heard of strange things regarding rar archives several times now, like somebody trying it to unpack (under Windows XP) on one drive and getting CRC errors, but when he moved and unpacked it to another drive on the same computer it worked just fine...

I guess it may be just another example of "why not to use proprietary software" ;)
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Das Schlimme auf dieser Welt ist
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roro

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Re: always crc error on files.rar
« Reply #8 on: August 29, 2005, 02:01:02 PM »

@thedude0001
Quote
Originally posted by thedude0001
I guess it may be just another example of "why not to use proprietary software" ;)

I totally agree with you, and Windows is just for me the only way to play...

I sometimes dream about all files with the .tar.gz format on the network  :D

@stefanero :
I checked dmesg and I found : hda : cache flushes not supported
but I don't know if I can conflict with amule writes ?
hdparm says dma is enabled and OK.
but you're right, I'll try this evening to change my harddisk :)

I have also made a memtest, the memory seem to work well...
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wardevil

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Re: always crc error on files.rar
« Reply #9 on: August 29, 2005, 03:15:16 PM »

You should test your hdd with hdd regene****r for bad blocks...it could fix your disk....
Sorry for not posting the full name of the software but its forum rules and i dont want to make Kry unhappy....   :))

Just google for it and use amule.....

Cheers......
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roro

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Re: always crc error on files.rar
« Reply #10 on: September 01, 2005, 07:35:37 PM »

Hello !

I've checked my hdd, it's all right....

but the problem is still here...
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wardevil

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Re: always crc error on files.rar
« Reply #11 on: September 02, 2005, 12:30:45 AM »

Which software are you using to unpack those rar files?

Cheers....
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roro

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Re: always crc error on files.rar
« Reply #12 on: September 03, 2005, 03:13:15 PM »

I use unrar 3.5.2-0.1 (non-free :] ) under Linux and Winrar3.5 under Windows.

There are some transfers problems between Windows and Linux via Samba3.0.14a-6 (if someone knows why...) so I think it could come from here when I download from a Windows user, don't you think ? but I don't understand what I've badly configured...
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