[Bugme-new] [Bug 34132] New: System is unresponsive while using dd to copy DVD ISO to USB stick/key
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Sat Apr 30 09:12:15 PDT 2011
https://bugzilla.kernel.org/show_bug.cgi?id=34132
Summary: System is unresponsive while using dd to copy DVD ISO
to USB stick/key
Product: IO/Storage
Version: 2.5
Kernel Version: 2.6.38.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Other
AssignedTo: io_other at kernel-bugs.osdl.org
ReportedBy: jlp.bugs at gmail.com
Regression: No
When I use
dd if=<some_iso_file> of=<device_of_usb_key>
The system becomes very unresponsive. X is almost completely unusable, maybe
you can move a mouse for some time but click do nothing. Even togling the Caps
Lock doesn't do anything. Trying to SSH is also almost impossible during this.
System is like this all the time while using the dd command. After it finishes
system again becomes responsive. I've noticed this on two of my computers:
1: AMD Athlon 64 3000+, 2 GB of memory, kernel 2.6.38.2
2: AMD Athlon II P320 Dual-Core, 4 GB of memory, kernel 2.6.39-rc2
The USB key is this one:
http://www.takems.com/products.php?categ=usb&prod=MEM-Drive_Easy_II
What I expected was that the doing dd wouldn't have a noticable impact on
responsivness of the rest of the system.
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