linux-kernel - Re: [Bug #13001] PCI-DMA: Out of IOMMU space

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Date:	Mon, 4 May 2009 18:58:27 -0700
From:	Grant Grundler <grundler@...gle.com>
To:	Данила Жукоцкий 
	<optimusgd@...il.com>
Cc:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>, rjw@...k.pl,
	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org
Subject: Re: [Bug #13001] PCI-DMA: Out of IOMMU space

2009/5/3 Данила Жукоцкий <optimusgd@...il.com>:
...
> WARNING: at lib/dma-debug.c:607 check_unmap+0x542/0x610()
> Hardware name: HP xw9400 Workstation
> 3w-9xxx 0001:45:00.0: DMA-API: device driver tries to free DMA memory
> it has not allocated [device address=0x0000000000000000] [size=36
> bytes]

This is definitely a driver bug. Just follow the stack trace back to
the device driver.

thanks!
grant
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