RE: memory corruption issues in wait_table of zone"DMA"

[ZHANG XIAO-QIN-HRX378]

 Hi Jan,

Thanks for your reply.

These memory corruption issue just happened during kernel bootup(less
than 2 secs).The kernel version is 2.6.10.And it is embeded linux
system(arm),only one zone in this system that is "DMA".

Thanks

Belinda

-----Original Message-----
From: Jan Lieskovsky [mailto:jlieskov@xxxxxxxxxx] 
Sent: Wednesday, May 14, 2008 4:39 PM
To: ZHANG XIAO-QIN-HRX378
Subject: Re: memory corruption issues in wait_table of zone"DMA"

Hello Zhang,

  have noticed your above post
(
http://groups.google.com/group/linux.kernel/browse_thread/thread/d336c86
49f3bf136?hl=en# ).

Could you please provide more details about the steps you are performing
to cause these types of memory corruptions? Or is it only regression
from previous kernel releases? Is this issue triggerable by a normal
Linux unprivileged user (i.e. could it be a security issue -- misused by
normal Linux user to force memory/cpu/DMA corruption)?

Any more details would be appreciated

Thank you for your time!

Kind regards
Jan iankko Lieskovsky
RH kernel Security Response Team

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