From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 66932] Screen corruption on Cayman with dpm enabled Date: Wed, 17 Jul 2013 18:10:08 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0521317923==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id B0F6BE5FC7 for ; Wed, 17 Jul 2013 11:10:08 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0521317923== Content-Type: multipart/alternative; boundary="1374084608.8bB1E1.11510"; charset="us-ascii" --1374084608.8bB1E1.11510 Date: Wed, 17 Jul 2013 18:10:08 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=66932 --- Comment #24 from Andre Heider --- (In reply to comment #22) > (In reply to comment #18) > > Created attachment 82559 [details] [review] [review] > > weird fix > > > > Hmmm, looks like a compiler bug. what compiler are you using? gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-6ubuntu1) But I think the compiler is right in this case. struct ATOM_INIT_REG_BLOCK doesn't represent what radeon_atom_init_mc_reg_table() is doing. The struct in the header reads: ... ATOM_INIT_REG_INDEX_FORMAT asRegIndexBuf[1]; ATOM_MEMORY_SETTING_DATA_BLOCK asRegDataBuf[1]; So reg_block->asRegIndexBuf[i] for i>0 is not defined, its within asRegDataBuf or even pass the size of the struct. It looks like this gcc is killing the while loop because i can never be anything else than zero. -- You are receiving this mail because: You are the assignee for the bug. --1374084608.8bB1E1.11510 Date: Wed, 17 Jul 2013 18:10:08 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 24 on bug 66932 from 
(In reply to comment #22)
> (In reply to comment #18)
> > Created attachment 82559 [details] [review] [review] [review]
> > weird fix
> > 
> 
> Hmmm, looks like a compiler bug.  what compiler are you using?

gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-6ubuntu1) 

But I think the compiler is right in this case. struct ATOM_INIT_REG_BLOCK
doesn't represent what radeon_atom_init_mc_reg_table() is doing.

The struct in the header reads:
...
ATOM_INIT_REG_INDEX_FORMAT asRegIndexBuf[1];
ATOM_MEMORY_SETTING_DATA_BLOCK    asRegDataBuf[1];

So reg_block->asRegIndexBuf[i] for i>0 is not defined, its within asRegDataBuf
or even pass the size of the struct.

It looks like this gcc is killing the while loop because i can never be
anything else than zero.

You are receiving this mail because:
  • You are the assignee for the bug.
--1374084608.8bB1E1.11510-- --===============0521317923== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============0521317923==--