linux-kernel - Re: [2.6.33-rc6-git regression] idr fix breaks Xorg

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Date:	Thu, 04 Feb 2010 17:16:56 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Andy Isaacson <adi@...apodia.org>
CC:	linux-kernel@...r.kernel.org, dri-devel@...ts.sourceforge.net
Subject: Re: [2.6.33-rc6-git regression] idr fix breaks Xorg

Hello,

On 02/04/2010 04:56 PM, Andy Isaacson wrote:
> 1265267921.568269 ioctl(8, 0xc020645e, 0x7fffe2196980) = -1 EBADF (Bad file descriptor)

Hmm... -EBADF?  I suppose it doesn't mean that the fd is invalid in
this case but that the mapped object can't be found for some reason?
Can anyone more familiar with the subsystem explain what's going on?

> 1265267921.568649 write(2, "../../../libdrm/intel/intel_bufmgr_gem.c:637: Error mapping buffer 1073741824 (gen4 WM state): Bad file descriptor .\n", 117) = 117
> 1265267921.569039 --- SIGSEGV (Segmentation fault) @ 0 (0) ---

I'll forward the fore mentioned fix as it at least fixes one reported
failure.

Thanks.

-- 
tejun
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