Bug#713035: FTBFS on amd64/ia64 testsuite fails
Hello, Ketvirtadienis 27 Birželis 2013 14:37:17 rašė: On Thu, Jun 27, 2013 at 08:05:17PM +0200, Aurelien Jarno wrote: The problem is that the amd64 and ia64 build daemons which tried to build this version of eglibc are all using eatmydata. eatmydata do not correctly simulate fsync, msync and fdatasync as cancellation points. It should be possible fixing that by calling pthread_testcancel() from eatmydata, though I haven't tried that yet. It seems pretty testsuite-hostile to wrap builds in any LD_PRELOAD, as you have no idea if the thing(s) the testsuites might be checking are now invalidated by said preload. Was there actually a sane rationale put forward for this buildd change? I can see the argument for wanting the apt/dpkg bits wrapped, but doing so for the build itself just seems like asking for trouble, with very little potential gain. Speaking with my maintainer hat on, when I first came upon eatmydata, I thought: it will be a huge time saviour for personal and maybe debian buildds. My primary idea was to wrap apt/dpkg with eatmydata since they use fsync() and friends *really* extensively. Too bad fsync() used to be (still is?) very slow on btrfs filesystem. For exactly this purpose eatmydata script supports symlink mode (see eatmydata(1)). Doing: # ln -s /usr/bin/eatmydata /usr/local/bin/apt-get # ln -s /usr/bin/eatmydata /usr/local/bin/dpkg in the buildd environment should be enough to wrap only these tools without too much hassle (i.e. sbuild configuration changes). I'm not sure how I feel about wrapping the whole build. Maybe it's not such a bad idea after all if somebody tested that it speeded things up much more significantly. However, I just wanted to let you know that a more conservative approach is possible. P.S. I'm aware that upstream released a new upstream release with the fix for this bug. However, packaging it might take some time due to significant buildsystem changes and other stuff. However, hopefully, I will get it eventually done in a few weeks. -- Modestas Vainius mo...@debian.org signature.asc Description: This is a digitally signed message part.
Bug#713035: FTBFS on amd64/ia64 testsuite fails
On Sat, Jun 22, 2013 at 12:55:56AM +0200, Gianluigi Tiesi wrote: Package: libc6 Version: 2.17-5 Severity: important libc6 2.17-6 FTBFS on amd64 and ia64 architectures due to some testsuite checks look at https://buildd.debian.org/status/package.php?p=eglibcsuite=sid The problem is that the amd64 and ia64 build daemons are using eatmydata to speed-up the build process. It causes some tests to fails, as eatmydata doesn't simulate the sync functions as cancellation point. So the problem is not on the eglibc side, and I don't know what we can do on the package side. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#713035: FTBFS on amd64/ia64 testsuite fails
On 06/27/13 16:37, Aurelien Jarno wrote: On Sat, Jun 22, 2013 at 12:55:56AM +0200, Gianluigi Tiesi wrote: Package: libc6 Version: 2.17-5 Severity: important libc6 2.17-6 FTBFS on amd64 and ia64 architectures due to some testsuite checks look at https://buildd.debian.org/status/package.php?p=eglibcsuite=sid The problem is that the amd64 and ia64 build daemons are using eatmydata to speed-up the build process. It causes some tests to fails, as eatmydata doesn't simulate the sync functions as cancellation point. So the problem is not on the eglibc side, and I don't know what we can do on the package side. the bug may be forwarded to eatmydata package, eglibc will not build anymore on that platform Regards -- Gianluigi Tiesi sher...@netfarm.it EDP Project Leader Netfarm S.r.l. - http://www.netfarm.it/ Free Software: http://oss.netfarm.it/ Q: Because it reverses the logical flow of conversation. A: Why is putting a reply at the top of the message frowned upon? -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#713035: FTBFS on amd64/ia64 testsuite fails
clone 713035 -1 reassign -1 eatmydata retitle -1 eatmydata does not simulate fsync, msync and fdatasync as cancellation points clone 713035 -2 reassign -2 buildd.debian.org retitle -2 buildds should not use eatmydata until it correctly simulates cancellation points retitle 713035 eglibc: FTBFS when built with eatmydata severity 713035 normal thanks On Sat, Jun 22, 2013 at 12:55:56AM +0200, Gianluigi Tiesi wrote: Package: libc6 Version: 2.17-5 Severity: important libc6 2.17-6 FTBFS on amd64 and ia64 architectures due to some testsuite checks look at https://buildd.debian.org/status/package.php?p=eglibcsuite=sid The problem is that the amd64 and ia64 build daemons which tried to build this version of eglibc are all using eatmydata. eatmydata do not correctly simulate fsync, msync and fdatasync as cancellation points. It should be possible fixing that by calling pthread_testcancel() from eatmydata, though I haven't tried that yet. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#713035: FTBFS on amd64/ia64 testsuite fails
On Thu, Jun 27, 2013 at 08:05:17PM +0200, Aurelien Jarno wrote: The problem is that the amd64 and ia64 build daemons which tried to build this version of eglibc are all using eatmydata. eatmydata do not correctly simulate fsync, msync and fdatasync as cancellation points. It should be possible fixing that by calling pthread_testcancel() from eatmydata, though I haven't tried that yet. It seems pretty testsuite-hostile to wrap builds in any LD_PRELOAD, as you have no idea if the thing(s) the testsuites might be checking are now invalidated by said preload. Was there actually a sane rationale put forward for this buildd change? I can see the argument for wanting the apt/dpkg bits wrapped, but doing so for the build itself just seems like asking for trouble, with very little potential gain. ... Adam -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#713035: FTBFS on amd64/ia64 testsuite fails
Package: libc6 Version: 2.17-5 Severity: important libc6 2.17-6 FTBFS on amd64 and ia64 architectures due to some testsuite checks look at https://buildd.debian.org/status/package.php?p=eglibcsuite=sid Regards -- System Information: Debian Release: jessie/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-xen-amd64 (SMP w/8 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/bash Versions of packages libc6 depends on: ii libgcc1 1:4.8.1-3 libc6 recommends no packages. Versions of packages libc6 suggests: ii debconf [debconf-2.0] 1.5.50 ii glibc-doc 2.17-5 ii locales2.17-5 -- debconf information excluded -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
