FS#6478 - USB flashdrive stopped working after kernel upgrade

Attached to Project: Arch Linux
Opened by Szabolcs Kurdi (szkurdi) - Thursday, 22 February 2007, 20:28 GMT
Last edited by Roman Kyrylych (Romashka) - Saturday, 03 March 2007, 18:39 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture not specified
Severity High
Priority Normal
Reported Version 0.7.2 Gimmick
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

After kernel upgrade upon inserting my usb flashdrive the partitions (which should be sda1) do not appear is /dev. The same usb thumbdrive works with Gentoo, Ubuntu and Windows. /dev/sda is created but nothing else; does not happen with rolled back kernel (2.6.19); udev/hal/dbus downgrade made no difference. Same happened with usb hdd (laptop hdd, via a NexStar external rack).
Now some boring data:

uname -a:
Linux superneko 2.6.20-ARCH #1 SMP PREEMPT Sat Feb 17 16:59:09 CET 2007 i686 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linu

udevmonitor stops with these lines (after a pause the partitions should've been detected):
UDEV [1172208329.552748] add@/block/sda
UDEV [1172208329.569982] add@/module/sd_mod

dmesg | tail:
USB Mass Storage support registered.
scsi 2:0:0:0: Direct-Access USB 2.0 Flash Drive 1.00 PQ: 0 ANSI: 0
usb-storage: device scan complete
sd 2:0:0:0: Attached scsi disk sda

fdisk:
Unable to read /dev/sda
This task depends upon

Closed by  Roman Kyrylych (Romashka)
Sunday, 04 March 2007, 14:21 GMT
Reason for closing:  None
Comment by Roman Kyrylych (Romashka) - Saturday, 03 March 2007, 18:39 GMT
Works for me. :-/ (Pretec i-Disk Tiny flash drive and Bestcom's USB HDD rack)
Comment by Tobias Powalowski (tpowa) - Sunday, 04 March 2007, 08:29 GMT
you use x64 or i686?
Comment by Szabolcs Kurdi (szkurdi) - Sunday, 04 March 2007, 14:18 GMT
I bought a new one which works... But: I still say, this newer kernel is quite picky about hardware; the disk worked with 2.6.19 while not with 2.6.20; on the other hand it was a real cheapo - cat /proc/scsi/scsi said that the Vendor is "usb" and the model is "2.0 Flash Storage Device" or something similar, so I assume this might caused some problems with the newer kernel. The hdd is not here, but I can live without that anyway.

BTW I use the default i686 install, I tend to prefer the trodden path. I guess this bug can be marked as resolved.

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