#55896 closed defect (fixed)
lz4 @1.8.1.2_0: ar: liblz4.a: Resource temporarily unavailable
| Reported by: | kencu (Ken) | Owned by: | ryandesign (Ryan Carsten Schmidt) |
|---|---|---|---|
| Priority: | Normal | Milestone: | |
| Component: | ports | Version: | |
| Keywords: | Cc: | ||
| Port: | lz4 |
Description
<https://build.macports.org/builders/ports-10.5_ppc_legacy-builder/builds/55269>
This build fails on the buildbot, but builds without trouble on my 10.5 PPC machine at home.
ar: liblz4.a: Resource temporarily unavailable make[1]: *** [liblz4.a] Error 1 make[1]: Leaving directory `/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_archivers_lz4/lz4/work/lz4-1.8.1.2/lib' make: *** [liblz4.a] Error 2
Change History (9)
comment:1 Changed 7 years ago by ryandesign (Ryan Carsten Schmidt)
| Cc: | ryandesign added |
|---|---|
| Summary: | lz4-1.8.1.2_0: ar: liblz4.a: Resource temporarily unavailable → lz4 @1.8.1.2_0: ar: liblz4.a: Resource temporarily unavailable |
comment:3 Changed 7 years ago by kencu (Ken)
I must have some missing dep installed. It builds on Tiger PPC too.
I tried disabling cctools, but it still builds. Maybe I have a newer bash installed.... will check.
comment:4 follow-up: 7 Changed 7 years ago by ryandesign (Ryan Carsten Schmidt)
| Cc: | ryandesign removed |
|---|---|
| Keywords: | leopard tiger added; powerpc removed |
| Owner: | set to ryandesign |
| Status: | new → accepted |
It has now built successfully on the buildbot. The portfile hasn't changed and it has no dependencies.
I believe it's a parallel build problem. The log says:
compiling static library compiling static library lz4.c:220: warning: ‘LZ4_write32’ defined but not used lz4.c:253: warning: ‘LZ4_readLE16’ defined but not used lz4hc.c:125: warning: ‘LZ4HC_countBack’ defined but not used lz4.c:220: warning: ‘LZ4_write32’ defined but not used lz4.c:253: warning: ‘LZ4_readLE16’ defined but not used lz4hc.c:125: warning: ‘LZ4HC_countBack’ defined but not used ar: liblz4.a: Resource temporarily unavailable make[1]: *** [liblz4.a] Error 1 make[1]: Leaving directory `/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_archivers_lz4/lz4/work/lz4-1.8.1.2/lib' make: *** [liblz4.a] Error 2 make: *** Waiting for unfinished jobs....
Note that the line compiling static library, and the three warnings resulting from compiling it, appear twice each. Two processes are trying to write the same library at the same time; one of them is prevented from doing so.
I should have read the Google search results more carefully when I searched last week. The first hit for a search for ar "Resource temporarily unavailable" was a duplicate of #27247, which discusses the same error being the result of a parallel build problem on Leopard and earlier.
comment:5 Changed 7 years ago by ryandesign (Ryan Carsten Schmidt)
| Resolution: | → fixed |
|---|---|
| Status: | accepted → closed |
comment:6 Changed 7 years ago by ryandesign (Ryan Carsten Schmidt)
I did see the problem once on a newer Mac running Sierra. I filed an upstream bug report.
comment:7 Changed 7 years ago by ryandesign (Ryan Carsten Schmidt)
| Keywords: | leopard tiger removed |
|---|
Replying to ryandesign:
Two processes are trying to write the same library at the same time; one of them is prevented from doing so.
Actually they probably both succeed, but a third process, started after the first static library compilation finished, is trying to use the library at the exact moment that the second static library compilation is overwriting it.
comment:8 Changed 7 years ago by raimue (Rainer Müller)
lz4 failed again on the buildbot due to a parallel build issue: https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/59550
I found a post that someone solved "Resource temporarily unavailable" by restarting their computer. I restarted the 10.5-ppc-legacy worker, but it has not restarted. I'll have to powercycle it and see if that helps.