Oilpan: support OSX thread stack size discovery.

Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480
Committed: https://crrev.com/748d2a9a91f91b8ab342597bd212dac9c7b1e06d
Cr-Commit-Position: refs/heads/master@{#364996}

[sof, 2015-12-14 09:01:20]

Description was changed from

==========
Oilpan: support OSX stack size estimation.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=
BUG=
==========

to

==========
Oilpan: support OSX stack size estimation.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=
BUG=569480
==========

[sof, 2015-12-14 09:03:28]

sigbjornf@opera.com changed reviewers:
+ oilpan-reviews@chromium.org

[sof, 2015-12-14 09:03:29]

please take a look.

[haraken, 2015-12-14 09:11:00]

LGTM, nice detective work!

[sof, 2015-12-14 09:32:34]

On 2015/12/14 09:11:00, haraken wrote:
> LGTM, nice detective work!

I'm guessing incidental changes to GC timing patterns have brought this to the
fore now, i.e., exceeding a 32k stack.

The failing assert is clearly a false negative, as there's way more stack
available. Might speed up marking on Macs to have a larger stack, though.

[sof, 2015-12-14 09:59:23]

Description was changed from

==========
Oilpan: support OSX stack size estimation.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=
BUG=569480
==========

to

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=
BUG=569480
==========

[sof, 2015-12-14 10:31:05]

mac_blink_oilpan_dbg is happy; will land, but watch out for trouble (wrt Canary
stability.)

[sof, 2015-12-14 10:31:19]

Description was changed from

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=
BUG=569480
==========

to

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480
==========

[sof, 2015-12-14 10:31:25]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-12-14 10:33:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1527513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1527513002/1

[commit-bot: I haz the power, 2015-12-14 10:37:25]

Description was changed from

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480
==========

to

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480
==========

[commit-bot: I haz the power, 2015-12-14 10:37:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-14 10:38:05]

Description was changed from

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480
==========

to

==========
Oilpan: support OSX thread stack size discovery.

We do know enough about OSX stack sizes to be able to work around
bugginess of 10.9's pthread_get_stacksize_np().

R=haraken
BUG=569480

Committed: https://crrev.com/748d2a9a91f91b8ab342597bd212dac9c7b1e06d
Cr-Commit-Position: refs/heads/master@{#364996}
==========

[commit-bot: I haz the power, 2015-12-14 10:38:06]

Patchset 1 (id:??) landed as
https://crrev.com/748d2a9a91f91b8ab342597bd212dac9c7b1e06d
Cr-Commit-Position: refs/heads/master@{#364996}