Bug 35488 – Xen log 50MB/s "dma: unregistered DMA channel used nchan=0 dma_pos=0 dma_len=1"

Bug 35488 - Xen log 50MB/s "dma: unregistered DMA channel used nchan=0 dma_pos=0 dma_len=1"


Summary:	Xen log 50MB/s "dma: unregistered DMA channel used nchan=0 dma_pos=0 dma_len=1"

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Virtualization - Xen
Version:	UCS 3.2
Hardware:	amd64 Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 3.2-2-errata
Assigned To:	Philipp Hahn
QA Contact:	Erik Damrose

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Reported:	2014-07-28 15:12 CEST by Philipp Hahn
Modified:	2014-08-04 16:22 CEST (History)
CC List:	2 users (show)

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Description Philipp Hahn

2014-07-28 15:12:46 CEST

Ticket#: 2014050621006641

Comment 1 Philipp Hahn

2014-07-29 09:51:52 CEST

The patch has been applied and the package been rebuild:
r52297 | Bug #35488 xen/qemu-dm: Suppress "ungeistered DMA channel" message.

Package: xen-4.1
Version: 4.1.3-15.40.201407290933
User: phahn
Branch: ucs_3.2-0
Scope: errata3.2-2

YAML: branches/ucs-3.2/ucs-3.2-2/doc/errata/staging/2014-07-29-xen-4.1.yaml
r52307 | Bug #35488 xen/qemu-dm: Suppress "ungeistered DMA channel" message YAML

QA: I have no test to trigger the bug; I could probably write one in assembler...

Comment 2 Erik Damrose

2014-07-31 15:02:14 CEST

OK: Patch, should limit the output to 1 per channel
OK: Yaml

Verified

Comment 3 Janek Walkenhorst

2014-08-04 16:22:53 CEST

http://errata.univention.de/ucs/3.2/155.html