Re: Maybe my frequent kernel building could be of some help to the community? And how to build?

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On Thu, 25 Mar 2010 10:29:35 -0700 Randy Dunlap wrote:

> On 03/18/10 08:40, Randy Dunlap wrote:
> > On Tue, 16 Mar 2010 12:24:35 -0700 Randy Dunlap wrote:
> > 
> >> On 03/16/10 12:02, Piotr Hosowicz wrote:
> >>> Hello,
> >>>
> >>> I own quite strong PC, 4 core Pentium. I recently started to build my
> >>> kernel frequently, whenever I see a new patch on kernel.org I build
> >>> again. Bothers me that I do it only for doing it. Maybe it could be of
> >>> some help to the community? And if so, what would be more appreciated -
> >>> linux-next patched kernel or gitN patched kernel? And how should I
> >>> configure the kernel for this purpose? I am afraid of putting all the
> >>> options on, yesterday I tried to put everything on as a module plus I
> >>> tinkered with some other options that seemed innocent. The kernel was
> >>> built but could not boot, saying that there was a problem with the root
> >>> device, it could not recoginze /dev/sda2, which is my correct root
> >>> device. I did not investigate much and reverted to working kernel.
> >>>
> >>> Thanks in advance for your remarks.
> >>
> >> Many linux-next builds are done daily: see
> >>   http://kisskb.ellerman.id.au/kisskb/branch/9/
> >>
> >> and then I do 25 x86_32 randconfigs and 25 x64_64 randconfigs
> >> daily and fix most build errors that I find in them.
> >> (I am also using a quad-core PC with a cron job that finds the
> >> next day's linux-next, downloads it, and does 50 builds.)
> >>
> >> You are welcome to do the same or test mainline (with daily
> >> builds) and/or Andrew Morton's mmotm patchset.
> > 
> > 
> > One thing that you could do that no one focuses on is building
> > with some kconfig symbols disabled (ones that are typically enabled),
> > such as CONFIG_SMP=n, CONFIG_SYSFS=n, CONFIG_PROC_FS=n, CONFIG_PM=n,
> > CONFIG_PCI=n, CONFIG_BLOCK=n, CONFIG_NET=n, CONFIG_INET=n (but latter
> > with CONFIG_NET=y), CONFIG_HOTPLUG=n.  Not all of these at the same time,
> > just various/random combinations of them.
> 
> and CONFIG_SYSRQ=n  (just found some errors due to this one)

and CONFIG_INPUT randomly enabled/disabled

Basically any major subsystem that can be enabled/disabled should be
tested.

---
~Randy
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