[OE-core] SetScene tasks hang forever?

[Rich Pixley]

On 5/2/12 12:40 , Mark Hatle wrote:
> On 5/2/12 2:16 PM, Rich Pixley wrote:
>> On 5/2/12 11:40 , Mark Hatle wrote:
>>> On 5/2/12 1:21 PM, Rich Pixley wrote:
>>>> I'm seeing a lot of builds apparently hanging forever, (the ones that
>>>> work seem to work within seconds - the ones that hang seem to hang for
>>>> at least 10's of minutes), with:
>>>>
>>>> rich at dolphin>     nice tail -f Log
>>>> MACHINE           = "qemux86"
>>>> DISTRO            = ""
>>>> DISTRO_VERSION    = "oe-core.0"
>>>> TUNE_FEATURES     = "m32 i586"
>>>> TARGET_FPU        = ""
>>>> meta              = "master:35b5fb2dd2131d4c7dc6635c14c6e08ea6926457"
>>>>
>>>> NOTE: Resolving any missing task queue dependencies
>>>> NOTE: Preparing runqueue
>>>> NOTE: Executing SetScene Tasks
>>>>
>>>> If I run top, I see one processor pinned at 98 - 99% utilization running
>>>> python, but no other clues.
>>>>
>>>> Can anyone point me to doc, explain what's going on here, or point me in
>>>> the right direction to debug this?
>>> The only time I've seen "hang-like" behavior the system actually opened a
>>> devshell and was awaiting input.   But based on your log, it doesn't look like
>>> that is the case.
>>>
>>> Run bitbake with -DDD option, you will get considerably more debug information
>>> and it might help point out what it thinks it is doing.
>> NOTE: Executing SetScene Tasks
>> DEBUG: Stamp for underlying task
>> 12(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/opkg/opkg_svn.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 16(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/opkg-utils/opkg-utils_git.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 20(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/makedevs/makedevs_1.0.0.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 24(/home/rich/projects/webos/openembedded-core/meta/recipes-core/eglibc/ldconfig-native_2.12.1.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 32(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/genext2fs/genext2fs_1.4.1.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 36(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/e2fsprogs/e2fsprogs_1.42.1.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 40(virtual:native:/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/qemu/qemu_0.15.1.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>> DEBUG: Stamp for underlying task
>> 44(/home/rich/projects/webos/openembedded-core/meta/recipes-devtools/qemu/qemu-helper-native_1.0.bb,
>> do_populate_sysroot) is current, so skipping setscene variant
>>
>> And then the spinning hang.
> Sorry, I don't know how to continue debugging what might be wrong.  The only
> other thing I can suggest is check that your filesystem is "real", not a
> netapp/nfs/network emulated filesystem....
>
> And if you were continuing a previous build, start a new build directory and
> retry it.
Local file system.  I'm building a second time expecting a null build 
pass.  I was able to get a null build pass in the same directory yesterday.

Removing my build directory and starting over has been working, but 
costs me a few hours each time, and this happens frequently enough that 
I get no other work done.  :(.

Thanks for reading.

--rich