Description of problem: I don't know what exactly has caused this, I'm afraid. It has happened twice so far. Both times I was in a C++ buffer, and had a *compilation* buffer opened in a second window. The crash is a bit random since it wasn't triggered by anything special -- just normal editing as I was doing for a few hours prior to the crash. Both times it happened after a few hours of editing. I upgraded this machine to Fedora 25 a few days ago. I never had this crash on Fedora 24 even with the same ~/.emacs and working on the same code. My other machine still runs Fedora 24 and Emacs also doesn't crash on it, again working on the same code base and with the same ~/.emacs. Version-Release number of selected component: emacs-25.1-3.fc25 Additional info: reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: emacs crash_function: raise executable: /usr/bin/emacs-25.1 global_pid: 28772 kernel: 4.8.15-300.fc25.x86_64 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (5 frames) #0 raise at ../sysdeps/unix/sysv/linux/raise.c:58 #2 handle_fatal_signal at ../../src/sysdep.c:1601 #3 deliver_thread_signal at ../../src/sysdep.c:1575 #4 deliver_fatal_thread_signal at ../../src/sysdep.c:1613 #5 handle_sigsegv at ../../src/sysdep.c:1695
Created attachment 1239440 [details] File: backtrace
Created attachment 1239441 [details] File: cgroup
Created attachment 1239442 [details] File: core_backtrace
Created attachment 1239443 [details] File: dso_list
Created attachment 1239444 [details] File: environ
Created attachment 1239445 [details] File: limits
Created attachment 1239446 [details] File: maps
Created attachment 1239447 [details] File: mountinfo
Created attachment 1239448 [details] File: namespaces
Created attachment 1239449 [details] File: open_fds
Created attachment 1239450 [details] File: proc_pid_status
Created attachment 1239451 [details] File: var_log_messages
I confirms Emacs is unstable on Fedora 25 : segfault when editing and strange behaviours. I noticed the bottom half of my buffer is sometimes blinking. As well as fast cycling update of the menu. I am using irony company yasnipet eldoc abbrev on C++ mode.
Similar problem has been detected: I was doing a git annotate via vc reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: emacs 'Identity Cards Act 2006.mw' crash_function: raise executable: /usr/bin/emacs-25.1 global_pid: 13790 kernel: 4.9.6-200.fc25.x86_64 package: emacs-25.1-3.fc25 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project reason: emacs-25.1 killed by SIGSEGV runlevel: N 5 type: CCpp uid: 1000
abrt thinks my bug is similar, but I don't think it is because mine is reproducible. I will report my bug separately upstream.
Similar problem has been detected: Crash while typing. This happens repeatedly, every 20 minutes or so. I am seeing this for the first time today after doing a system update where about 100 packages where updated, NOT emacs, though. It's a most cricial bug due to (so far limited, fortunately), data loss and interruption of work flow in a most central part of my work flow. reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: emacs m2_chapter.tex crash_function: raise executable: /usr/bin/emacs-25.1 global_pid: 4017 kernel: 4.9.8-201.fc25.x86_64 package: emacs-25.1-3.fc25 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project reason: emacs-25.1 killed by SIGSEGV runlevel: N 5 type: CCpp uid: 1000
Similar problem has been detected: Working with emacs, latex files reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: emacs crash_function: raise executable: /usr/bin/emacs-25.1 global_pid: 10212 kernel: 4.9.13-200.fc25.x86_64 package: emacs-25.1-3.fc25 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project reason: emacs-25.1 killed by SIGSEGV runlevel: N 5 type: CCpp uid: 1497
*** Bug 1430867 has been marked as a duplicate of this bug. ***
Similar problem has been detected: login from the remote machine by ssh. $ export DISPLAY=XX.XXX.XX.XX:0 ( IP address of remote machine) $ emacs The remorte machine is a Windows machine running Cygwin / X Server. There was no problem in the middle of February. This problem occurred recently. reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: emacs crash_function: raise executable: /usr/bin/emacs-25.1 global_pid: 18328 kernel: 4.9.13-200.fc25.x86_64 package: emacs-25.1-3.fc25 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project reason: emacs-25.1 killed by SIGSEGV runlevel: N 5 type: CCpp uid: 1000
Please, give the latest build (1:25.2-0.1.rc2.fc27) from my copr (https://copr.fedorainfracloud.org/coprs/jsynacek/emacs-25/) a try.
(In reply to Jan Synacek from comment #20) > Please, give the latest build (1:25.2-0.1.rc2.fc27) from my copr > (https://copr.fedorainfracloud.org/coprs/jsynacek/emacs-25/) a try. thank you. emacs.x86_64 1:25.2-0.1.rc2.fc25 is good. There is no longer occur SIGSEGV.
(In reply to Takahiro Nakamura from comment #21) > (In reply to Jan Synacek from comment #20) > > Please, give the latest build (1:25.2-0.1.rc2.fc27) from my copr > > (https://copr.fedorainfracloud.org/coprs/jsynacek/emacs-25/) a try. > > thank you. > emacs.x86_64 1:25.2-0.1.rc2.fc25 is good. > There is no longer occur SIGSEGV. sorry. In the system that executed the latest dnf update, SIGSEGV did not occur even in emacs-25.1-3.fc25.
(In reply to Jan Synacek from comment #20) > Please, give the latest build (1:25.2-0.1.rc2.fc27) from my copr > (https://copr.fedorainfracloud.org/coprs/jsynacek/emacs-25/) a try. I've been using emacs 1:25.2-0.1.rc2.fc25 (not fc27) from your copr for the past few days and so far I've had no crash.
Similar issues continue with 25.1-3.fc25. Please open the attached file (temp.c) and start typing anything before the first quotation marks (actually or anywhere in that line). Emacs crashes. After discussion with emacs developers (see bug 26531 there), the fix is by using ./configure REL_ALLOC=no for 25.1. Or upgrading to 25.2-rc2 (which is unlikely because this is still a release candidate). This is a critical issue for all emacs users -- I have had lots of crashes and finally been able to nail down the issue -- so it would be nice if we could get it fixed even before 25.2 becomes stable and avalable on Fedora. Here is the thread on the Emacs bugs list: https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00539.html Thanks again!
Created attachment 1272097 [details] Small C file (8 lines) called temp.c to illustrate emacs crash Open in emacs. Take cursor to line 6 and before "Usage...." Start typing (anything). Emacs will crash before you have typed ten characters. Actually pretty much happens elsewhere also.
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I cannot reproduce this with emacs-25.3-3.fc26.x86_64.