On Wednesday 08 August 2007 12:57, Ismail Dönmez wrote: > On Wednesday 08 August 2007 13:48:29 you wrote: >> On Tuesday 07 August 2007 23:18, Greg KH wrote: >> > On Tue, Aug 07, 2007 at 10:26:15PM +0200, Niels wrote: >> >> Hi, >> >> >> >> I'm having problems with a new 500 GB USB disk. It works, but >> >> sometimes I get these in dmesg: >> >> >> >> >> >> usb 1-3: reset high speed USB device using ehci_hcd and address 2 >> >> usb 5-1: USB disconnect, address 2 >> >> drivers/usb/class/usblp.c: usblp0: removed >> >> sd 0:0:0:0: Device not ready: <6>: Sense Key : 0x2 [current] >> >> >> >> : ASC=0x4 ASCQ=0x2 >> >> >> >> end_request: I/O error, dev sda, sector 254148215 >> >> sd 0:0:0:0: Device not ready: <6>: Sense Key : 0x2 [current] >> >> >> >> : ASC=0x4 ASCQ=0x2 >> >> >> >> end_request: I/O error, dev sda, sector 252434023 >> >> EXT3-fs error (device sda1): ext3_find_entry: reading directory >> >> #15761836 offset 0 >> >> >> >> >> >> There's also a printer connected. This is on a pci/usb2 card. When the >> >> above happens, I get I/O errors. When I mount the drive next, there >> >> are errors and often missing files. Quite annoying! >> >> >> >> Kernel is 2.6.21 >> >> >> >> What's going on? >> > >> > You have a low voltage issue, or a bad cable. The device is >> > electronically disconnecting itself. Try using a externally-powered >> > hub, or a new cable. > > I am seeing a similar problem with 2.6.22 and 2.6.23-* kernels with my 60G > iPod Video, works fine with 2.6.18 kernel though. > > Rehards, > ismail >
(no need to CC me) So far I'm seeing this: - On 2.6.21 I mount the drive. After a while it spins down, and when I then unmount it, an error pops up in dmesg. - On 2.6.18 I can't provoke the same error. The drive doesn't appear to spin down. I don't know if the data corruption from 2.6.21 occurs with regular use. There are a number of other factor I need to eliminate on my system, but that's it so far. CONFIG_USB_SUSPEND is not set on either kernel. //Niels - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
