Re: [dev] [dmenu] Segfault upon input

From: congdanhqx <>
Date: Sun, 24 Mar 2019 03:42:05 +0000

Hi Josh,

On March 23, 2019 7:27:20 PM UTC, Josh Hansen <> wrote:
>I'm relaying a common bug report from i3wm that appears to be a dmenu
>issue involving a segmentation fault upon any user input. You can see
>the reports here:
>This occurs in dmenu 4.9. It seems that at least for some users, this
>version gives a segmentation fault when entering any text input into
>the dmenu input box. This impairs essentially all use of dmenu.
>Here is how I can bring about the bug:
>1. Invoke dmenu using the i3 shortcut
>2. Type any text input key
>3. dmenu exits immediately
>Upon further inspection, this can be shown to be a segmentation fault.
>From the command line:
>$ gdb dmenu
>$ (gdb) run < /dev/null
>Program received signal SIGSEGV, Segmentation fault.
>XmbLookupString (ic=0x0, ev=0x7fffffffcf50, buffer=0x7fffffffd010
><incomplete sequence \302>, nbytes=32, keysym=0x7fffffffcec0,
>status=0x7fffffffcdc0) at ICWrap.c:403
>403 if (ic->
>This appears to be a dmenu-specific issue as it can be reproduced
>similarly from within a non-i3 window manager.
>My system is Fedora 29, dmenu 4.9. The error appears to have been
>introduced upon upgrading from dmenu 4.8, before which dmenu
>functioned properly.

Is it duplicated with this report:
Sent from my Android device with K-9 Mail. Please excuse my brevity.
Received on Sun Mar 24 2019 - 04:42:05 CET

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