Jan Vroonhof <vroonhof(a)math.ethz.ch&gt; writes: No, my XFree86 and the other packages XEmacs depends on are compiled with glibc2.1. Yes, they happen in this function. The only interesting variable there is "struct device *d", which is -------------------------------------- (gdb) p *d $1 = {header = {lheader = {implementation = 0x82df1c0}, next = 0x84469f0, uid = 8726, free = 0}, devmeths = 0x83435a0, name = 137776084, connection = 137775668, canon_connection = 137776036, frame_list = 137512588, console = 138652128, selected_frame = 137512588, frame_with_focus_real = 137512588, frame_with_focus_for_hooks = 137512588, frame_that_ought_to_have_focus = 137512588, device_class = 137512588, user_defined_tags = 137512588, color_instance_cache = 138701616, font_instance_cache = 138701688, image_instance_cache = 138702104, device_data = 0x8446e58, buffers_changed = 0, clip_changed = 0, extents_changed = 0, faces_changed = 0, frame_changed = 0, glyphs_changed = 0, subwindows_changed = 0, icon_changed = 0, menubar_changed = 0, modeline_changed = 0, point_changed = 0, size_changed = 0, toolbar_changed = 0, windows_changed = 0, windows_structure_changed = 0, locked = 0, pixel_to_glyph_cache = { valid = 0, frame = 0x0, low_x_coord = 0, high_x_coord = 0, col = 0, obj_x = 0, low_y_coord = 0, high_y_coord = 0, row = 0, obj_y = 0, w = 0x0, bufpos = 0, closest = 0, modeline_closest = 0, obj1 = 137512588, obj2 = 137512588, retval = 0}, baud_rate = 38400, on_console_p = 0, connected_to_nas_p = 0, infd = 11, outfd = 11, old_fcntl_owner = 0} (gdb) p *(struct x_device *)d->device_data $2 = {display = 0x83f0218, being_deleted = 0, Xt_app_shell = 0x84a2e40, gc_cache = 0x0, visual = 0x838b8a0, depth = 16, device_cmap = 33, gray_pixmap = 0, Xatom_WM_PROTOCOLS = 0, Xatom_WM_DELETE_WINDOW = 0, Xatom_WM_SAVE_YOURSELF = 0, Xatom_WM_TAKE_FOCUS = 0, Xatom_WM_STATE = 0, Xatom_CLIPBOARD = 0, Xatom_TIMESTAMP = 0, Xatom_TEXT = 0, Xatom_DELETE = 0, Xatom_MULTIPLE = 0, Xatom_INCR = 0, Xatom_EMACS_TMP = 0, Xatom_TARGETS = 0, Xatom_NULL = 0, Xatom_ATOM_PAIR = 0, Xatom_COMPOUND_TEXT = 0, Xatom_FOUNDRY = 0, Xatom_FAMILY_NAME = 0, Xatom_WEIGHT_NAME = 0, Xatom_SLANT = 0, Xatom_SETWIDTH_NAME = 0, Xatom_ADD_STYLE_NAME = 0, Xatom_PIXEL_SIZE = 0, Xatom_POINT_SIZE = 0, Xatom_RESOLUTION_X = 0, Xatom_RESOLUTION_Y = 0, Xatom_SPACING = 0, Xatom_AVERAGE_WIDTH = 0, Xatom_CHARSET_REGISTRY = 0, Xatom_CHARSET_ENCODING = 0, MetaMask = 64, HyperMask = 0, SuperMask = 32, AltMask = 8, ModeMask = 0, lock_interpretation = 65509, x_modifier_keymap = 0x8498050, x_keysym_map = 0x84b4f90, x_keysym_map_min_code = 8, x_keysym_map_max_code = 134, x_keysym_map_keysyms_per_code = 3, x_keysym_map_hash_table = 139154824, WM_COMMAND_frame = 137512588, mouse_timestamp = 0, global_mouse_timestamp = 0, last_server_timestamp = 0, need_to_add_mask = 0, down_mask = 0, last_downkey = 0 '\000', release_time = 0} --------------------------------------- The backtrace of a (slightly modified) xemacs is: (gdb) bt #0 0x40403021 in __kill () #1 0x40402c6a in raise (sig=6) at ../sysdeps/posix/raise.c:27 #2 0x4040451b in abort () at ../sysdeps/generic/abort.c:88 #3 0x8088f35 in assert_failed (file=0x820af1e "sysdep.c", line=1021, expr=0x820af60 "ioctl (filedesc, I_GETSIG, &events)!=-1") at emacs.c:2649 #4 0x81745e4 in request_sigio_on_device (d=0x845c600) at sysdep.c:1021 #5 0x8174bca in init_one_device (d=0x845c600) at sysdep.c:1709 #6 0x817a3bc in x_init_device (d=0x845c600, props=137512588) at device-x.c:726 #7 0x8076fe7 in Fmake_device (type=137614668, connection=137512588, props=137512588) at device.c:581 #8 0x808f4ee in Ffuncall (nargs=3, args=0xbfffefcc) at eval.c:3189 #9 [...] It would be interesting to know if all glibc2.1 build's are concerned, or if it happens just under certain circumstances. The X-signal-stuff is a closed book for me :) Do you know a good documentation/manual which handles with it? About which Solaris manpage are you speaking below? That's right. Yes, the I_xxx #define's have the values above. If you are interested in a precompiled device-x.c and sysdep.c, you can find them at http://www.tu-chemnitz.de/~ensc/xemacs/ . Enrico -- eMail: enrico.scholz(a)wirtschaft.tu-chemnitz.de talk: ensc(a)ultra.csn.tu-chemnitz.de