412707 – x11-drivers/nvidia-drivers should check CONFIG_ZONE_DMA

Bug 412707 - x11-drivers/nvidia-drivers should check CONFIG_ZONE_DMA

Summary: x11-drivers/nvidia-drivers should check CONFIG_ZONE_DMA

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Unspecified (show other bugs)
Hardware:	AMD64 Linux

Importance:	Normal normal (vote)
Assignee:	Doug Goldstein (RETIRED)

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Depends on:
Blocks:

Reported:	2012-04-20 00:19 UTC by Constantin Baranov
Modified:	2012-08-16 22:39 UTC (History)
CC List:	2 users (show)

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Runtime testing required:	---

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Description Constantin Baranov 2012-04-20 00:19:10 UTC

It seems that nvidia driver actually depends on CONFIG_ZONE_DMA feature which is optional in recent Linux versions on amd64. Catched on Lenovo T510 with NVS 3100M and Lenovo W520 with Quadro 2000M. I can't check whether this is specific for Lenovo or for these GPUs.

Reproducible: Always

Steps to Reproduce:
1. configure kernel with CONFIG_ZONE_DMA=n
2. emerge nvidia-drivers
3. boot
Actual Results:  
2. no warnings issued
3. driver is successfully loaded but hungs on first use with weird message about RCU stall in kernel log.

Comment 1 Doug Goldstein (RETIRED) gentoo-dev

2012-07-22 20:41:49 UTC

This will be addressed in nvidia-drivers-304.22 and newer.

Comment 2 Doug Goldstein (RETIRED) gentoo-dev

2012-08-16 22:39:54 UTC

Fixed in 304.37.