Bug 609680 – app-editors/emacs-24.5-r3 build fails with temacs segmentation fault

• Status: RESOLVED WORKSFORME
• Product: Gentoo Linux

[Description Ulrich Müller 2017-02-17 23:46:59 UTC]

Build fails in src_compile with a segmentation fault when first executing temacs:

if test "no" = "yes"; then \
  rm -f bootstrap-emacs; \
  ln temacs bootstrap-emacs; \
else \
  ./temacs --batch --load loadup bootstrap || exit 1; \
  test "X" = X ||  -zex emacs; \
  mv -f emacs bootstrap-emacs; \
fi
/bin/sh: line 7: 30823 Segmentation fault      ./temacs --batch --load loadup bootstrap
make[1]: *** [Makefile:816: bootstrap-emacs] Error 1
make[1]: Leaving directory '/var/tmp/portage/app-editors/emacs-24.5-r3/work/emacs-24.5/src'
make: *** [Makefile:387: src] Error 2
 * ERROR: app-editors/emacs-24.5-r3::gentoo failed (compile phase):
 *   emake failed

(gdb) run
Starting program: /var/tmp/portage/app-editors/emacs-24.5-r3/work/emacs-24.5/src/temacs 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00000000005ce6e5 in calloc (
    nmemb=<error reading variable: DWARF-2 expression error: Loop detected (257).>, size=size@entry=1) at gmalloc.c:1529
1529      result = malloc (bytes);


Not sure what has triggered this. Possibly due to glibc update from 2.23 to 2.24.

[Comment 1 Ulrich Müller 2017-02-17 23:50:40 UTC]

Created attachment 464170 [details]
build.log

[Comment 2 Ulrich Müller 2017-02-17 23:51:38 UTC]

Created attachment 464172 [details]
emerge --info

[Comment 3 Aurélien Francillon 2017-06-26 08:04:21 UTC]

Same problem here (on hardened) with sys-libs/glibc-2.23-r4

[Comment 4 Aurélien Francillon 2017-06-26 08:04:52 UTC]

Created attachment 478020 [details]
build.log

[Comment 5 Aurélien Francillon 2017-06-26 08:06:29 UTC]

Created attachment 478022 [details]
emerge --info

[Comment 6 Aurélien Francillon 2017-06-26 08:32:02 UTC]

Looks like duplicate of #622146 

and caused by improper pax flags :
paxctl-ng -v temacs 
temacs:
        PT_PAX    : -e---
        XATTR_PAX : -e-r-

temacs does not segfault after resetting pax flags using:
paxctl-ng -z temacs

[Comment 7 Ulrich Müller 2017-06-26 11:58:56 UTC]

(In reply to Aurélien Francillon from comment #3)

Please don't re-use an existing bug report for an unrelated issue. *This* bug is about a build failure of emacs-24.5-r3 on non-hardened amd64.

Your emacs-25.2 issue is most likely the same problem as bug 607990 (in particular, see bug 607990 comment 8).

[Comment 8 Aurélien Francillon 2017-06-26 12:20:36 UTC]

OK sorry to disturb here, crash was on the same step of compilation and this was unclear initially if that was hardened related or not (or if original post was hardened too...). 

Thanks for the pointers though.

[Comment 9 Ulrich Müller 2018-03-07 00:10:56 UTC]

I cannot reproduce this any more. Closing.