Package: src:emacs24 Version: 24.5+1-8 Severity: normal Tags: patch Ahoy there,
We noticed in Ubuntu (zesty) that emacs24 was failing to build, like: > Memory exhausted--use M-x save-some-buffers then exit and restart > Emacs ...I checked in Debian, and the same happens for us here on ppc64 (be). https://buildd.debian.org/status/fetch.php?pkg=emacs24&arch=ppc64&ver=24.5+1-8&stamp=1485124019&raw=0 Some brief googling led me to https://bugzilla.redhat.com/show_bug.cgi?id=1356919 and then onto https://debbugs.gnu.org/cgi/bugreport.cgi?bug=24033#11 Which I backported to 24 (25 is fixed), and it made emacs24 build for us. The patch is attached if you want it. Cheers! -- Iain Lane [ [email protected] ] Debian Developer [ [email protected] ] Ubuntu Developer [ [email protected] ]
>From ff3fc21e24edffccce0d42065833e852a6792bd2 Mon Sep 17 00:00:00 2001 From: Paul Eggert <[email protected]> Date: Tue, 19 Jul 2016 15:23:14 +0200 Subject: Port to glibc 2.24 (pre-release) + ppc64 Backported to Debian/Ubuntu by Iain Lane <[email protected]> to fix memory exhaustion failures on ppc64el. Backport from master (Bug#24033). Inspired by a suggestion by Florian Weimer in: https://sourceware.org/ml/libc-alpha/2016-07/msg00425.html * src/emacs.c (main) [__PPC64__]: Special case for __PPC64__, which needs ASLR disabled in dumped Emacs too. --- src/emacs.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) Index: emacs24-24.5+1/src/emacs.c =================================================================== --- emacs24-24.5+1.orig/src/emacs.c +++ emacs24-24.5+1/src/emacs.c @@ -723,6 +723,27 @@ main (int argc, char **argv) stack_base = &dummy; #endif +#if defined HAVE_PERSONALITY_ADDR_NO_RANDOMIZE && defined __PPC64__ + /* This code partly duplicates the HAVE_PERSONALITY_LINUX32 code + below. This duplication is planned to be fixed in a later + Emacs release. */ +# define ADD_NO_RANDOMIZE 0x0040000 + int pers = personality (0xffffffff); + if (! (pers & ADD_NO_RANDOMIZE) + && 0 <= personality (pers | ADD_NO_RANDOMIZE)) + { + /* Address randomization was enabled, but is now disabled. + Re-execute Emacs to get a clean slate. */ + execvp (argv[0], argv); + + /* If the exec fails, warn the user and then try without a + clean slate. */ + perror (argv[0]); + } +# undef ADD_NO_RANDOMIZE +#endif + + #ifdef G_SLICE_ALWAYS_MALLOC /* This is used by the Cygwin build. It's not needed starting with cygwin-1.7.24, but it doesn't do any harm. */
