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Xi0N

Member

From: Bilbao - Spain

Registered: 2007-11-29

Posts: 832

Website

System freezes completely sometimes when copying to/from USB devices

It has been happenning since some weeks ago:
In both computers i have:

Laptop running Arch 32 bits - ext4 partitions for system and data
PC running Arch64 - ext4 partitions for system and data

Sometimes i just plug my 200Gb disk with ext4 and copy from or to it... and randomly, sometimes happens, some others it does not: the system freezes completely and i have to do a hard reset (the painful one)

It also happens with fat32 usb sticks, so i dont think is the filesystem: at least, not the one on the external device....

What can i do, for a start, for trying to fix this problems?
Thanks

securitybreach

Member

From: In front of my computers

Registered: 2007-11-18

Posts: 416

Website

Re: System freezes completely sometimes when copying to/from USB devices

Probably a I/O problem. I had experience with this before. Of course, I did not have to hard rest, just some Firefox hanging, etc. I also noticed this when doing a conversion with devede near the end of the process and with extracting large archives  ( ~10gb). I recently upgraded to a faster harddrive 7500 which fixed the problems for me.

Thanks

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Xi0N

Member

From: Bilbao - Spain

Registered: 2007-11-29

Posts: 832

Website

Re: System freezes completely sometimes when copying to/from USB devices

Strange, because the laptop's disk is 5400, but the one on the pc is 7200 rpm............ so i assume, this is not the issue neither.......

kjon

Member

From: Temuco, Chile

Registered: 2008-04-16

Posts: 398

Re: System freezes completely sometimes when copying to/from USB devices

try changing the scheduler. In my case, I solved these issues by appending 'elevator=deadline' to grub's boot line.

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They say that if you play a Win cd backward you hear satanic messages. That's nothing! 'cause if you play it forwards, it installs windows.

Xi0N

Member

From: Bilbao - Spain

Registered: 2007-11-29

Posts: 832

Website

Re: System freezes completely sometimes when copying to/from USB devices

try changing the scheduler. In my case, I solved these issues by appending 'elevator=deadline' to grub's boot line.

What does this exactly do?

kjon

Member

From: Temuco, Chile

Registered: 2008-04-16

Posts: 398

Re: System freezes completely sometimes when copying to/from USB devices

have a look on google about how kernel assigns i/o resources. I don't know how to explain it very well because my english sucks!

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They say that if you play a Win cd backward you hear satanic messages. That's nothing! 'cause if you play it forwards, it installs windows.

Xi0N

Member

From: Bilbao - Spain

Registered: 2007-11-29

Posts: 832

Website

Re: System freezes completely sometimes when copying to/from USB devices

have a look on google about how kernel assigns i/o resources. I don't know how to explain it very well because my english sucks!

Ok, thanks.. i actually activated it, and im going to do the hardest test my system can achieve...

Install a virtual windows vista

Doing this, 100% of the times it got frozen...... lets see now