| Summary: | emacs enters infinite loop and hogs CPU when typing | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jason Vas Dias <jason.vas.dias> | ||||
| Component: | emacs | Assignee: | Petr Hracek <phracek> | ||||
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 19 | CC: | jonathan.underwood, ovasik, phracek | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-02-17 19:26:39 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Attachments: |
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Created attachment 830386 [details] gdb stack trace of all threads showing infinite recursion in thread 3 Description of problem: I was typing '( int argc,', on a main() function, in a "C++" text file, with 2 frames available, and just after I typed ',', emacs froze and the spinning fedora 'waiting' icon appears when the mouse is over any emacs frame (I had 2) . It is still frozen half an hour later and is consuming 99.8% of cpu time according to top: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5383 jason 20 0 1507772 676824 20256 R 99.8 4.1 36:42.89 emacs Here are some diagnostics : $ pstack 5383 Thread 3 (Thread 0x7fae60ab4700 (LWP 5384)): #0 0x0000003d884eb7fd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000003422c480e4 in g_main_context_iterate.isra.22 () from /lib64/libglib-2.0.so.0 #2 0x0000003422c4854a in g_main_loop_run () from /lib64/libglib-2.0.so.0 #3 0x0000003423cc6db6 in gdbus_shared_thread_func () from /lib64/libgio-2.0.so.0 #4 0x0000003422c6c165 in g_thread_proxy () from /lib64/libglib-2.0.so.0 #5 0x0000003d88c07c53 in start_thread (arg=0x7fae60ab4700) at pthread_create.c:308 #6 0x0000003d884f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 2 (Thread 0x7fae5bab6700 (LWP 5387)): #0 0x0000003d884eb7fd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000003422c480e4 in g_main_context_iterate.isra.22 () from /lib64/libglib-2.0.so.0 #2 0x0000003422c481ec in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #3 0x00007fae5babd9cd in dconf_gdbus_worker_thread () from /usr/lib64/gio/modules/libdconfsettings.so #4 0x0000003422c6c165 in g_thread_proxy () from /lib64/libglib-2.0.so.0 #5 0x0000003d88c07c53 in start_thread (arg=0x7fae5bab6700) at pthread_create.c:308 #6 0x0000003d884f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7fae67ba4a80 (LWP 5383)): #0 0x0000000000586825 in exec_byte_code () #1 0x000000000054f67f in funcall_lambda () #2 0x000000000054f98b in Ffuncall () #3 0x000000000058492b in exec_byte_code () #4 0x000000000054f67f in funcall_lambda () #5 0x000000000054f98b in Ffuncall () #6 0x000000000058492b in exec_byte_code () #7 0x000000000054f67f in funcall_lambda () #8 0x000000000054f98b in Ffuncall () #9 0x000000000058492b in exec_byte_code () #10 0x000000000054f67f in funcall_lambda () #11 0x000000000054f98b in Ffuncall () #12 0x000000000058492b in exec_byte_code () #13 0x000000000054f67f in funcall_lambda () #14 0x000000000054f98b in Ffuncall () #15 0x000000000054c118 in Fcall_interactively () #16 0x000000000054fafc in Ffuncall () #17 0x0000000000551454 in call3 () #18 0x00000000004eb489 in command_loop_1 () #19 0x000000000054e053 in internal_condition_case () #20 0x00000000004dcb9e in command_loop_2 () #21 0x000000000054df2e in internal_catch () #22 0x00000000004e1287 in recursive_edit_1 () #23 0x00000000004e1584 in Frecursive_edit () #24 0x0000000000417085 in main () $ echo 't a a where' > gdb.cmd; gdb /usr/bin/emacs -p 5383 -x gdb.cmd 2>&1 </dev/null | tee /tmp/emacs.crash.backtrace Thread 3 (Thread 0x7fae60ab4700 (LWP 5384)): #0 0x0000003d884eb7fd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000003422c480e4 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7fae5c0010c0, timeout=-1, context=0xbf3a30) at gmain.c:3995 #2 g_main_context_iterate (context=0xbf3a30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696 #3 0x0000003422c4854a in g_main_loop_run (loop=0xbf39c0) at gmain.c:3895 #4 0x0000003423cc6db6 in gdbus_shared_thread_func (user_data=0xbf3a00) at gdbusprivate.c:278 #5 0x0000003422c6c165 in g_thread_proxy (data=0xc6ecf0) at gthread.c:798 #6 0x0000003d88c07c53 in start_thread (arg=0x7fae60ab4700) at pthread_create.c:308 #7 0x0000003d884f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 2 (Thread 0x7fae5bab6700 (LWP 5387)): #0 0x0000003d884eb7fd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000003422c480e4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fae540010c0, timeout=-1, context=0xe89fc0) at gmain.c:3995 #2 g_main_context_iterate (context=context@entry=0xe89fc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696 #3 0x0000003422c481ec in g_main_context_iteration (context=0xe89fc0, may_block=1) at gmain.c:3762 #4 0x00007fae5babd9cd in dconf_gdbus_worker_thread () from /usr/lib64/gio/modules/libdconfsettings.so #5 0x0000003422c6c165 in g_thread_proxy (data=0xc7f320) at gthread.c:798 #6 0x0000003d88c07c53 in start_thread (arg=0x7fae5bab6700) at pthread_create.c:308 #7 0x0000003d884f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7fae67ba4a80 (LWP 5383)): #0 mark_object (arg=<optimized out>) at /usr/src/debug/emacs-24.3/src/alloc.c:5906 #1 0x0000000000537898 in mark_object (arg=<optimized out>) at /usr/src/debug/emacs-24.3/src/alloc.c:5812 #2 0x0000000000537cf6 in mark_vectorlike (ptr=0xd78d00) at /usr/src/debug/emacs-24.3/src/alloc.c:5501 #3 0x000000000053782a in mark_object (arg=<optimized out>) at /usr/src/debug/emacs-24.3/src/alloc.c:5794 #4 0x0000000000537854 in mark_object (arg=<optimized out>) at /usr/src/debug/emacs-24.3/src/alloc.c:5808 .... $ tail -16 /tmp/emacs.crash.backtrace at /usr/src/debug/emacs-24.3/src/eval.c:1060 #8397 0x00000000004e1287 in command_loop () at /usr/src/debug/emacs-24.3/src/keyboard.c:1147 #8398 recursive_edit_1 () at /usr/src/debug/emacs-24.3/src/keyboard.c:779 #8399 0x00000000004e1584 in Frecursive_edit () at /usr/src/debug/emacs-24.3/src/keyboard.c:843 #8400 0x0000000000417085 in main (argc=<optimized out>, argv=0x7fff547caee8) at /usr/src/debug/emacs-24.3/src/emacs.c:1528 Missing separate debuginfos, use: debuginfo-install at-spi2-atk-2.8.1-1.fc19.x86_64 at-spi2-core-2.8.0-3.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 dbus-glib-0.100-5.fc19.x86_64 dconf-0.16.0-2.fc19.x86_64 expat-2.1.0-5.fc19.x86_64 gmp-5.1.1-2.fc19.x86_64 gvfs-1.16.3-2.fc19.x86_64 harfbuzz-0.9.19-1.fc19.x86_64 jbigkit-libs-2.0-8.fc19.x86_64 lcms-libs-1.19-9.fc19.x86_64 libXau-1.0.8-1.fc19.x86_64 libXcomposite-0.4.4-3.fc19.x86_64 libXcursor-1.1.14-1.fc19.x86_64 libXdamage-1.1.4-3.fc19.x86_64 libXext-1.3.2-1.fc19.x86_64 libXfixes-5.0.1-1.fc19.x86_64 libXi-1.7.2-1.fc19.x86_64 libXinerama-1.1.3-1.fc19.x86_64 libXrandr-1.4.1-1.fc19.x86_64 libXt-1.1.4-5.fc19.x86_64 libXxf86vm-1.1.3-1.fc19.x86_64 libbluray-0.4.0-1.fc19.x86_64 libcroco-0.6.8-2.fc19.x86_64 libdrm-2.4.47-1.fc19.x86_64 libffi-3.0.13-4.fc19.x86_64 libtasn1-3.3-1.fc19.x86_64 libtool-ltdl-2.4.2-21.fc19.x86_64 libuuid-2.23.2-4.fc19.x86_64 libwayland-client-1.2.0-1.fc19.x86_64 libwayland-cursor-1.2.0-1.fc19.x86_64 libwayland-server-1.2.0-1.fc19.x86_64 libxcb-1.9-3.fc19.x86_64 libxkbcommon-0.3.0-1.fc19.x86_64 mesa-libEGL-9.2.3-1.20131114.fc19.x86_64 mesa-libGL-9.2.3-1.20131114.fc19.x86_64 mesa-libgbm-9.2.3-1.20131114.fc19.x86_64 mesa-libglapi-9.2.3-1.20131114.fc19.x86_64 nettle-2.6-2.fc19.x86_64 oxygen-gtk3-1.2.0-1.fc19.x86_64 p11-kit-0.18.7-1.fc19.x86_64 pixman-0.30.0-1.fc19.x86_64 systemd-libs-204-17.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 (gdb) quit A debugging session is active. Inferior 1 [process 5383] will be detached. Quit anyway? (y or n) [answered Y; input not from terminal] Detaching from program: /usr/bin/emacs, process 5383 (complete backtrace attached). Version-Release number of selected component (if applicable): emacs-24.3-11.fc19.x86_64 How reproducible: ? Steps to Reproduce: See above. Actual results: Emacs entered infinite recursive loop and stopped interacting when I typed ','. Expected results: Nothing I type should make emacs do this. Additional info: