Am 06.08.2014 um 13:39 schrieb Niko Tyni: > On Mon, Aug 04, 2014 at 11:36:12PM +0300, Niko Tyni wrote: >> On Mon, Aug 04, 2014 at 12:13:42PM +0300, Niko Tyni wrote: >>> On Tue, Jul 15, 2014 at 11:31:52PM +0200, Matthias Klose wrote: >>>> Am 15.07.2014 20:48, schrieb Niko Tyni: >>>>> Package: libapache2-mod-perl2 >>>>> Version: 2.0.8+httpd24-r1449661-6 >>>>> Severity: important >>>>> X-Debbugs-Cc: [email protected] >>>>> Tags: help >>>>> >>>>> As seen in #754308, the libapache2-mod-perl2 build segfaults in the >>>>> test suite when built with gcc 4.9. We have worked around that in >>>>> 2.0.8+httpd24-r1449661-7 by building with 4.8, but that's not a long >>>>> term solution. > >>> It works at -O0, modulo #756989 (which happens with gcc-4.8 too >>> but confused me into thinking this was more than just an optimizer >>> regression.) > >> It's src/modules/perl/modperl_env.c, and I've narrowed it down to >> modperl_env_table_populate(). > >> I'm now working on a standalone test case but it's not very easy. >> Any help is appreciated. > > No progress with the test case, but another data point: the optimization > that triggers this is -ftree-dse. > could you attribute the function with __attribute__((optimize("STRING")))
e.g. -fno-tree-dse, and build the rest with the default optimization? -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
