liburcu fails to build on ppc64el

Bug #1511458 reported by Matthias Klose on 2015-10-29
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
liburcu (Ubuntu)
High
Unassigned
linux (Ubuntu)
Vivid
High
Unassigned

Bug Description

see https://launchpad.net/ubuntu/+source/liburcu/0.8.8-1/+build/8179698

times out in the tests, worked before.

Checked a new upstream release, have a working build on a POWER8 machine which passes the tests. But building it on the LP farm hangs as well. However it takes the tests a long time to run:

./rcutorture_urcu_qsbr `nproc` stress 1 callrcu_perthread .... ok
All tests successful.
Files=61, Tests=70, 212 wallclock secs ( 0.13 usr 0.03 sys + 2683.58 cusr 84.56 csys = 2768.30 CPU)
Result: PASS

Compared to amd64:

./rcutorture_urcu_qsbr `nproc` stress 1 callrcu_perthread .... ok
All tests successful.
Files=61, Tests=70, 210 wallclock secs ( 0.26 usr 0.04 sys + 715.74 cusr 32.74 csys = 748.78 CPU)
Result: PASS

The attempt for the test build can be found at
https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test/+sourcepub/5637521/+listing-archive-extra

Matthias Klose (doko) wrote :

a test build of 0.8.8-1 on wichita times out as well.

Matthias Klose (doko) wrote :

works with the wily kernel 4.2.0-16.19
hangs with the vivid kernel 3.19.0-31

no longer affects: liburcu (Ubuntu Vivid)
no longer affects: linux (Ubuntu)
Changed in linux (Ubuntu Vivid):
status: New → Confirmed
importance: Undecided → High

Built correctly on X/Y/Z for amd64, arm64, armhf, i386, powerpc, ppc64el, s390x.
Setting to Fix Released.
Vivid Kernel out of support and builders are updated per RT ticket so setting WONtFix on the vivid task.

Changed in liburcu (Ubuntu):
status: Confirmed → Fix Released
Changed in linux (Ubuntu Vivid):
status: Confirmed → Won't Fix
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