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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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Harald Dunkel

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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
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#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

#2 lore raw
In reply to Matthew Dharm

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/>