[OE-core] SetScene tasks hang forever?

[Mark Hatle]

On 5/2/12 2:45 PM, Rich Pixley wrote:
> 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.  :(.

Ya, that is certainly not acceptable.  If you could file a bug on the 
bugzilla.yoctoproject.org someone might be able to help you diagnose this 
further and hopefully figure out a fix.

--Mark

> Thanks for reading.
>
> --rich
>
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