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2.4.21: USB Mass Storage data integrity not assured?

DISCUSSION Harald Dunkel 3 participants 4 messages Jun 22, 2003

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#0 lore raw

Hi folks,

This morning I tried to attach an 2.5" HD via USB2.0 to my Linux box. I got a message

WARNING: USB Mass Storage data integrity not assured

in kern.log, followed by billions of IO errors during mkfs.

Well, I need a mass storage whose integrity _is_ assured. Is there any hope that ehci and usb-storage get improved for a 2.4.x kernel? Any patches I could try?

Regards

Harri

#1 lore raw

That warning means that if you yank the device at a bad time, you could get screwed.

Matt

Quoted 24 lines · Harald Dunkel

Hi folks,

This morning I tried to attach an 2.5" HD via USB2.0 to my Linux box. I got a message

WARNING: USB Mass Storage data integrity not assured

in kern.log, followed by billions of IO errors during mkfs.

Well, I need a mass storage whose integrity _is_ assured. Is there any hope that ehci and usb-storage get improved for a 2.4.x kernel? Any patches I could try?

Regards

Harri

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Signature · 6 lines
Matthew Dharm                              Home: [email protected] 
Maintainer, Linux USB Mass Storage Driver

Stef, you just got beaten by a ball of DIRT.
					-- Greg
User Friendly, 12/7/1997
#2 lore raw

And IDE will be assured under similar actions? And SCSI? And any removable media yanked without unmounting?

Either the message is useless or there is a real higer risk with USB that with other buses - and I would like to know what it is too.

Quoted 20 lines · Matthew Dharm

That warning means that if you yank the device at a bad time, you could get screwed.

Matt

Quoted 13 lines · Harald Dunkel

Hi folks,

This morning I tried to attach an 2.5" HD via USB2.0 to my Linux box. I got a message

WARNING: USB Mass Storage data integrity not assured

in kern.log, followed by billions of IO errors during mkfs.

Well, I need a mass storage whose integrity _is_ assured. Is there any hope that ehci and usb-storage get improved for a 2.4.x kernel? Any patches I could try?

--
Eyal Lebedinsky ([email protected]) <http://samba.org/eyal/>

#3 lore raw
In reply to Harald Dunkel
Quoted 5 lines · Harald Dunkel

Well, I need a mass storage whose integrity _is_ assured. Is there any hope that ehci and usb-storage get improved for a 2.4.x kernel? Any patches I could try?

I found Greg's patches. Much better now.

Regards

Harri