Bug 465

Summary:	emenlow/atom-pc kernel log buffer too small
Product:	[Build System, Metadata & Runtime] Meta-yocto	Reporter:	Tom Zanussi <tom.zanussi>
Component:	meta-yocto	Assignee:	Tom Zanussi <tom.zanussi>
Status:	RESOLVED FIXED	QA Contact:
Severity:	minor
Priority:	Low	CC:	jessica.zhang, kevin.tian, poky.bs.watcher, poky.watcher, richard.purdie, sgw
Version:	0.9
Target Milestone:	1.0 M1
Hardware:	x86
OS:	x86
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	---

Description Tom Zanussi 2010-10-14 09:37:47 UTC

The current kernel log buffer (dmesg) size is only 16k (LOG_BUF_SHIFT=14), which seems too small for the Atom-based BSPs - a few verbose errors on bootup can easily cause the most interesting debug messages to be lost.

A larger value would be better (LOG_BUF_SHIFT=17 (132k) would be good, or 16 (64k) at minimum).

Comment 1 Tom Zanussi 2011-01-18 07:40:03 UTC

Added logbuf feature to kernel, see kernel commit 5adcf6fbcd7491d8d3e1805929f575041d439235.