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On 03/25/2011 01:21 AM, Michael Haubenwallner wrote: |
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> Hi Zac (et al), |
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> |
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> while this problem occurs on AIX only (for now?), I doubt this problem is |
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> introduced in prefix-portage. |
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> |
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> With recent prefix-portage-2.2.01.18125 (Fabian, how do you calculate the |
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> version numbers since moving to git?), the "EbuildProcess" spits this |
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> every now and then during "emerge mime-types" fex: |
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> |
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> * EbuildProcess received strange poll event: 16384 |
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> |
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> While I don't understand (yet) why this is there on AIX at all, it does |
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> trigger an IOError when trying to log this message to $T/build.log after |
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> $WORKDIR has been cleaned up. When I avoid the logging of this message, |
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> everything (seems to) work fine. |
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|
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You can compare 16384 to the values of POLLERR and POLLNVAL in order to |
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see what type of event it is. Apparently the values on AIX are different |
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from those on Linux, because here's what I see on Linux: |
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|
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Python 2.7.1 (r271:86832, Mar 19 2011, 04:00:12) |
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[GCC 4.5.2] on linux2 |
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Type "help", "copyright", "credits" or "license" for more information. |
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>>> import select |
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>>> dir(select) |
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['EPOLLERR', 'EPOLLET', 'EPOLLHUP', 'EPOLLIN', 'EPOLLMSG', |
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'EPOLLONESHOT', 'EPOLLOUT', 'EPOLLPRI', 'EPOLLRDBAND', 'EPOLLRDNORM', |
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'EPOLLWRBAND', 'EPOLLWRNORM', 'PIPE_BUF', 'POLLERR', 'POLLHUP', |
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'POLLIN', 'POLLMSG', 'POLLNVAL', 'POLLOUT', 'POLLPRI', 'POLLRDBAND', |
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'POLLRDNORM', 'POLLWRBAND', 'POLLWRNORM', '__doc__', '__file__', |
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'__name__', '__package__', 'epoll', 'error', 'poll', 'select'] |
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>>> select.POLLNVAL |
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32 |
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>>> select.POLLERR |
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8 |
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|
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> For the attached logfile, I've added these two lines to usr/lib/portage/bin/ebuild.sh: |
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> @@ -1,3 +1,5 @@ |
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> #!/big5tk/local/gprefix/bin/bash |
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> # Copyright 1999-2011 Gentoo Foundation |
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> # Distributed under the terms of the GNU General Public License v2 |
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> +echo "ebuild.sh: $0 $@" >&2 |
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> +echo "ebuild.sh: WORKDIR: ${WORKDIR}" >&2 |
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> @@ |
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> |
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> Any idea? |
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|
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This will handle the IOError: |
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|
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|
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http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=0a64f784003c11e151405b7f708d77770de0ed57 |
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|
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It might be risky to skip logging of the POLLNVAL / POLLERR events, so |
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hopefully we can determine their cause and handle them somehow. Do they |
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seem to cause any problems? It might be something specific about pty |
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devices on AIX. |
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-- |
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Thanks, |
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Zac |
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