On Sun, Dec 12, 2010 at 12:26:48PM +0100, Peter Steiner wrote: > Hi > > compiled latest 2.6.36.2 but it reliably panics() my machine. > It happens if I try to dd sda to sdb (backup) using xhci USB3.0 > (conceptronic CUSB3EXC) but ALSO using native USB 2.0 ports on the > machine - after 10-15 minutes of dd. Can you run lspci -v and lsusb? I'm wondering if the USB 2.0 ports are part of an EHCI host controller or an xHCI host controller. > Please see attached screenshot (I cannot copy it as text as it takes > down the machine and locks up in text console, so I can only make a > foto). Can you run netconsole to capture more of the messages before that? If you need help with setting up netconsole, see: http://sarah.thesharps.us/2010-03-26-09-41 > see attached .config. > > The bug did NOT happen on 2.6.35.7 - however there the USB3.0 xhci > frequently disconnects the sdb backup disk and dd fails after 400GB of > copy or so (but no panic). Would this happen to be on a Lenovo W510 laptop? I've received reports of different oopses caused by disconnects, while running 2.6.35.8: http://marc.info/?l=linux-kernel&m=129131271416325&w=2 Do you see panics or oopses when you run 2.6.35.8? Or did you just upgrade straight from 2.6.35.7 to 2.6.36.2? Sarah Sharp -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>