linux-kernel - Re: 2.6.30-rc1: ioatdma: DMA-API: device driver frees DMA memory with wrong function

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Date:	Wed, 15 Apr 2009 16:39:17 +0400
From:	Alexander Beregalov <a.beregalov@...il.com>
To:	Kernel Testers List <kernel-testers@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, dan.j.williams@...el.com,
	maciej.sosnowski@...el.com
Subject: Re: 2.6.30-rc1: ioatdma: DMA-API: device driver frees DMA memory with 
	wrong function

2009/4/9 Alexander Beregalov <a.beregalov@...il.com>:
> ioatdma 0000:00:08.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> ioatdma 0000:00:08.0: setting latency timer to 64
> ioatdma 0000:00:08.0: Intel(R) I/OAT DMA Engine found, 4 channels,
> device version 0x12, driver version 3.64
>  alloc irq_desc for 33 on cpu 0 node 0
>  alloc kstat_irqs on cpu 0 node 0
> ioatdma 0000:00:08.0: irq 33 for MSI/MSI-X
> ------------[ cut here ]------------
> WARNING: at lib/dma-debug.c:565 check_unmap+0x2f6/0x6a0()
> Hardware name: PowerEdge 1950
> ioatdma 0000:00:08.0: DMA-API: device driver frees DMA memory with
> wrong function [device address=0x000000007f76f800] [size=2000 bytes]
> [map
> ped as single] [unmapped as page]

The problem still persists.
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