2020-07-04 19:03 BST

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IDProjectCategoryView StatusLast Update
0002569NetSurfGTK-specificpublic2018-08-29 14:57
ReporterAnthony J. Bentley 
Assigned ToVincent Sanders 
PlatformOSOpenBSDOS Version
Product Version3.7 
Target Version3.8Fixed in Version3.8 
Summary0002569: Bus error when search box is removed
DescriptionThis bug was reported to me by a user, and I've been able to reproduce it.

If toolbar icons have been customized, NetSurf frequently crashes on startup:

$ netsurf-gtk
Bus error (core dumped)
Steps To ReproduceIf you remove the search bar with the toolbar customise command, it generates the following Choices file:


If I remove the Choices file it stops crashing. If I copy the Choices file to another machine that NetSurf starts crashing too.
Additional InformationBacktrace:

Program received signal SIGBUS, Bus error.
g_type_check_instance_cast (type_instance=0xdfdfdfdfdfdfdfdf,
    iface_type=7566957525376) at gtype.c:4052
4052 gtype.c: No such file or directory.
(gdb) bt
#0 g_type_check_instance_cast (type_instance=0xdfdfdfdfdfdfdfdf,
    iface_type=7566957525376) at gtype.c:4052
#1 0x000006ded525f5a3 in nsgtk_entry_set_icon_from_stock (
    entry=0xdfdfdfdfdfdfdfdf, icon_pos=GTK_ENTRY_ICON_PRIMARY,
    id=0x6ded5443013 "gtk-find") at frontends/gtk/compat.c:181
0000002 0x000006ded5273d8a in gui_search_web_provider_update (
    provider_name=0x6e0e7e80700 "Google", provider_bitmap=<optimized out>)
    at frontends/gtk/scaffolding.c:2500
#3 0x000006ded524ee83 in search_web_select_provider (
    selection=<optimized out>) at desktop/searchweb.c:405
#4 0x000006ded526fa54 in nsgtk_new_scaffolding (toplevel=<optimized out>)
    at frontends/gtk/scaffolding.c:2282
#5 0x000006ded527c598 in gui_window_create (bw=0x6e15bfa5c00, existing=0x0,
    flags=GW_CREATE_NONE) at frontends/gtk/window.c:774
#6 0x000006ded523cd16 in browser_window_create (flags=BW_CREATE_HISTORY,
    url=0x6e1af260380, referrer=0x0, existing=0x6e1d1d0b980, bw=0x0)
    at desktop/browser.c:880
#7 0x000006ded52645ba in nsgtk_init (argc=<optimized out>,
    argv=0x7f7ffffdc308, respath=<optimized out>) at frontends/gtk/gui.c:343
#8 main (argc=<optimized out>, argv=0x7f7ffffdc308)
    at frontends/gtk/gui.c:1187

The 0xdfdfdfdf indicates a use-after-free (on OpenBSD freed memory is overwritten with 0xdf).
TagsNo tags attached.
Fixed in CI build #4259
Reported in CI build #
URL of problem page
Attached Files


Vincent Sanders


Vincent Sanders (administrator)

the handling of toolbar configuration is somewhat buggy.

I have generally improved this handling including removing several buggy dialog window calls.

This bug as well as several others in this area are now gone.

Thanks for the report
Vincent Sanders


Vincent Sanders (administrator)

Thank you for your report, this has been resolved in the 3.8 release

-Issue History
Date Modified Username Field Change
2017-10-27 10:52 Anthony J. Bentley New Issue
2017-12-10 23:31 Vincent Sanders Assigned To => Vincent Sanders
2017-12-10 23:31 Vincent Sanders Reproducibility sometimes => always
2017-12-10 23:31 Vincent Sanders Status new => resolved
2017-12-10 23:31 Vincent Sanders Fixed in Version => 3.8
2017-12-10 23:31 Vincent Sanders Fixed in CI build # => 4259
2017-12-10 23:31 Vincent Sanders Note Added: 0001698
2018-01-23 20:40 Vincent Sanders Resolution open => fixed
2018-08-28 11:42 Vincent Sanders Target Version => 3.8
2018-08-29 14:57 Vincent Sanders Status resolved => closed
2018-08-29 14:57 Vincent Sanders Note Added: 0001818
+Issue History