[Freeciv-Dev] Re: (PR#15204) SDL client: segfault with city names turned on

["Daniel Markstedt" <himasaram@xxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=15204 >

On Tue, 2006-01-17 at 19:32 -0800, Christian Prochaska wrote:
> <URL: http://bugs.freeciv.org/Ticket/Display.html?id=15204 >
> 
> Daniel Markstedt schrieb:
> 
> ><URL: http://bugs.freeciv.org/Ticket/Display.html?id=15204 >
> >
> >The SDL client defaults to hidden city names on the map.
> >
> >When turned on (Map Options -> City Names) the client segfaults
> >immediately or after a few turns.
> >
> >Same problem with City Productions.
> >
> >-Daniel
> >
> 
> On my PC the client tends to run into a cycle, because
> add_idle_callback() is not fully implemented yet and for now just calls
> the idle function immediately.
> 
...
> 
> Maybe your segmentation faults are related to this. Can you post a
> backtrace? (http://www.freeciv.org/index.php/Bug_Reporting)
> 
> 

The full session leading up to the crash attached.

Worth noting is that the last 3k or so 'Unimplemented add_idle_callback'
messages were received in less than one minute.

-Daniel

daniel@myspys:~$ gdb civclient
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This GDB was configured as "i486-linux-gnu"...Using host libthread_db library 
"/lib/tls/i686/cmov/libthread_db.so.1".

(gdb) run
Starting program: /usr/local/bin/civclient
[Thread debugging using libthread_db enabled]
[New Thread -1215064384 (LWP 26854)]
2: Using Video Output: x11
[New Thread -1219249232 (LWP 26857)]
open /dev/sequencer: No such file or directory
1: Unimplemented add_idle_callback.
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 4 times (total 8 repeats)
1: last message repeated 8 times (total 16 repeats)
1: last message repeated 16 times (total 32 repeats)
1: last message repeated 32 times (total 64 repeats)
1: last message repeated 64 times (total 128 repeats)
1: last message repeated 128 times (total 256 repeats)
1: last message repeated 122 times (total 378 repeats)
2: PORT ME: diplomat_handled_in diplomat_dialog()
1: Unimplemented add_idle_callback.
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 4 times (total 8 repeats)
1: last message repeated 8 times (total 16 repeats)
1: last message repeated 16 times (total 32 repeats)
1: last message repeated 32 times (total 64 repeats)
1: last message repeated 64 times (total 128 repeats)
1: last message repeated 128 times (total 256 repeats)
1: last message repeated 216 times (total 472 repeats)
2: PORT ME: diplomat_handled_in diplomat_dialog()
1: Unimplemented add_idle_callback.
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 4 times (total 8 repeats)
1: last message repeated 8 times (total 16 repeats)
1: last message repeated 16 times (total 32 repeats)
1: last message repeated 32 times (total 64 repeats)
1: last message repeated 64 times (total 128 repeats)
1: last message repeated 128 times (total 256 repeats)
1: last message repeated 256 times (total 512 repeats)
1: last message repeated 512 times (total 1024 repeats)
1: last message repeated 1024 times (total 2048 repeats)
1: last message repeated 2048 times (total 4096 repeats)
1: last message repeated 4096 times (total 8192 repeats)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1215064384 (LWP 26854)]
0xb7ebe6b8 in SDL_InvalidateMap () from /usr/lib/libSDL-1.2.so.0
(gdb) bt full
#0  0xb7ebe6b8 in SDL_InvalidateMap () from /usr/lib/libSDL-1.2.so.0
No symbol table info available.
#1  0xb7ebf3a8 in SDL_MapSurface () from /usr/lib/libSDL-1.2.so.0
No symbol table info available.
#2  0xb7ebfaeb in SDL_LowerBlit () from /usr/lib/libSDL-1.2.so.0
No symbol table info available.
#3  0xb7ebfdc8 in SDL_UpperBlit () from /usr/lib/libSDL-1.2.so.0
No symbol table info available.
#4  0x080e1ab7 in canvas_put_sprite_full (pcanvas=0x8d89760,
    canvas_x=148412256, canvas_y=148412256, sprite=0x8d89760) at canvas.c:94
        dst = {x = 110, y = 210, w = 60, h = 60}
#5  0x080606d8 in put_one_element (pcanvas=0x8b795f8, layer=LAYER_TERRAIN1,
    ptile=0xb5786cb0, pedge=0x0, pcorner=0x0, punit=0x0, pcity=0x0,
    canvas_x=110, canvas_y=210, citymode=0x0) at mapview_common.c:872
        tile_sprs = {{foggable = false, sprite = 0x8d89798, offset_x = 0,
    offset_y = 0}, {foggable = false, sprite = 0x89bd868, offset_x = 0,
    offset_y = 0}, {foggable = 148, sprite = 0xbf4385e0, offset_x = 136698000,
    offset_y = 134}, {foggable = 234, sprite = 0xb7e61b5c, offset_x = 0,
    offset_y = -1086093856}, {foggable = 234, sprite = 0x0, offset_x = 64,
    offset_y = 153291456}, {foggable = 8, sprite = 0x9230b10, offset_x = 1,
    offset_y = 0}, {foggable = false, sprite = 0xa, offset_x = 0,
    offset_y = 0}, {foggable = 49, sprite = 0x90eaec7, offset_x = 255,
    offset_y = 1}, {foggable = 97, sprite = 0x0, offset_x = 0,
---Type <return> to continue, or q <return> to quit---
    offset_y = 151957189}, {foggable = 92, sprite = 0xff,
    offset_x = 136698000, offset_y = -1086093784}, {foggable = 3,
    sprite = 0x7, offset_x = 1, offset_y = 0}, {foggable = 49,
    sprite = 0x90eaec0, offset_x = 255, offset_y = 3}, {foggable = 152,
    sprite = 0x825dc9e, offset_x = 136699032, offset_y = 151957184}, {
    foggable = 92, sprite = 0x825d890, offset_x = 136708616,
    offset_y = -1086093064}, {foggable = 47, sprite = 0x8, offset_x = 1,
    offset_y = 136699032}, {foggable = 144, sprite = 0x4, offset_x = 0,
    offset_y = 0}, {foggable = false, sprite = 0x3, offset_x = 0,
    offset_y = -1209324445}, {foggable = 192, sprite = 0x90eaca8,
    offset_x = 2, offset_y = -1086093656}, {foggable = 159,
    sprite = 0x90eb398, offset_x = 2, offset_y = -1210642212}, {foggable = 24,
    sprite = 0x6, offset_x = 151957296, offset_y = 151958504}, {
    foggable = 160, sprite = 0xbf438834, offset_x = 136708552,
    offset_y = 136708424}, {foggable = 192, sprite = 0x90eaf30, offset_x = 2,
    offset_y = -1086093576}, {foggable = 216, sprite = 0x90eb398,
    offset_x = 2, offset_y = 136708492}, {foggable = 72, sprite = 0x82601b8,
    offset_x = 136708504, offset_y = 3}, {foggable = 5, sprite = 0x8260218,
    offset_x = 3, offset_y = 7}, {foggable = 189, sprite = 0x3, offset_x = 6,
    offset_y = 6}, {foggable = 192, sprite = 0x90eb3e8, offset_x = 146249120,
    offset_y = -1086092472}, {foggable = 253, sprite = 0x90eb398,
    offset_x = -1210636032, offset_y = 151959384}, {foggable = 92,
    sprite = 0x8b797d8, offset_x = 151956648, offset_y = -1086093528}, {
---Type <return> to continue, or q <return> to quit---
    foggable = 150, sprite = 0x90eb758, offset_x = -1209656484,
    offset_y = -1086093496}, {foggable = 193, sprite = 0x825cb90,
    offset_x = 151959384, offset_y = 153262936}, {foggable = 240,
    sprite = 0x92ae810, offset_x = 146249688, offset_y = -1086093464}, {
    foggable = 9, sprite = 0x825cb90, offset_x = 146249688,
    offset_y = -1086093448}, {foggable = 18, sprite = 0xb7e61b5c,
    offset_x = -1086092952, offset_y = -1086093448}, {foggable = 197,
    sprite = 0x8b797d8, offset_x = -1209656484, offset_y = -1086093208}, {
    foggable = 105, sprite = 0xbf4388d8, offset_x = 153806776,
    offset_y = 104}, {foggable = 122, sprite = 0x26ec, offset_x = 0,
    offset_y = 0}, {foggable = false, sprite = 0xbf4388d8,
    offset_x = 146249288, offset_y = 0}, {foggable = 20, sprite = 0xb7c9b7c0,
    offset_x = 104008, offset_y = 0}, {foggable = false, sprite = 0x1,
    offset_x = 146249688, offset_y = 146249736}, {foggable = 192,
    sprite = 0x6000, offset_x = 24576, offset_y = 136699696}, {foggable = 202,
    sprite = 0x4b, offset_x = -1086092980, offset_y = 153787208}, {
    foggable = 52, sprite = 0x8b93330, offset_x = 146355044,
    offset_y = -1086093256}, {foggable = 15, sprite = 0x8b79648, offset_x = 1,
    offset_y = -1210635328}, {foggable = 72, sprite = 0x0,
    offset_x = -1086093224, offset_y = 136694672}, {foggable = 56,
    sprite = 0xb7d72900, offset_x = 72, offset_y = -1210636032}, {
    foggable = 144, sprite = 0xb7d6452f, offset_x = 136708424,
    offset_y = 136708552}, {foggable = 56, sprite = 0x9230618,
---Type <return> to continue, or q <return> to quit---
    offset_x = 146289904, offset_y = 2}, {foggable = 88, sprite = 0x0,
    offset_x = 11, offset_y = 384}, {foggable = 164, sprite = 0x3d,
    offset_x = 146354832, offset_y = -1210642212}, {foggable = 188,
    sprite = 0xbf438898, offset_x = -1211464543, offset_y = -1086093124}, {
    foggable = false, sprite = 0x8166aff, offset_x = 0, offset_y = 135686911},
  {foggable = 220, sprite = 0x8157178, offset_x = -1086092232,
    offset_y = -1086092888}, {foggable = 166, sprite = 0xbf4388bc,
    offset_x = 135623032, offset_y = -1086092232}, {foggable = false,
    sprite = 0x0, offset_x = -1086092964, offset_y = -1086093124}, {
    foggable = true, sprite = 0x8166900, offset_x = 135686400,
    offset_y = 135686400}, {foggable = false, sprite = 0x8166920,
    offset_x = 135686911, offset_y = 135686400}, {foggable = 255,
    sprite = 0x0, offset_x = 0, offset_y = 0}, {foggable = false,
    sprite = 0x0, offset_x = 0, offset_y = 0}, {foggable = 52,
    sprite = 0x8000000, offset_x = 0, offset_y = 0}, {foggable = 225,
    sprite = 0x517, offset_x = 1303, offset_y = -1}, {foggable = 48,
    sprite = 0x8b932fc, offset_x = 146354908, offset_y = 136694672}, {
    foggable = 56, sprite = 0xb7d72900, offset_x = 72,
    offset_y = -1210636032}, {foggable = 184, sprite = 0x92a9ae0,
    offset_x = 153262936, offset_y = 12}, {foggable = 56, sprite = 0xb7d70b20,
    offset_x = 0, offset_y = -1086092904}, {foggable = 64, sprite = 0x0,
    offset_x = 384, offset_y = 576}, {foggable = 92, sprite = 0x825d830,
    offset_x = 7, offset_y = -1086092872}, {foggable = false, sprite = 0x0,
---Type <return> to continue, or q <return> to quit---
    offset_x = 0, offset_y = 4096}, {foggable = false, sprite = 0xb7ca56ca,
    offset_x = -1210636004, offset_y = 7}, {foggable = 119,
    sprite = 0x8166900, offset_x = -1210642212, offset_y = -1210641056}, {
    foggable = 160, sprite = 0xb7eedcc0, offset_x = -1209082688,
    offset_y = -1086092744}, {foggable = 106, sprite = 0x8b79288,
    offset_x = -1210641056, offset_y = -1086092296}, {foggable = 98,
    sprite = 0xb7d71560, offset_x = 480, offset_y = 0}, {foggable = 32,
    sprite = 0x4, offset_x = 2640, offset_y = 136522120}, {foggable = 9,
    sprite = 0x8b792a8, offset_x = 8, offset_y = 16}, {foggable = 40,
    sprite = 0x8b8b2a8, offset_x = 3211264, offset_y = 146249736}, {
    foggable = false, sprite = 0x8b932fc, offset_x = 40, offset_y = 564}, {
    foggable = 248, sprite = 0x28, offset_x = 136803896,
    offset_y = -1086092712}, {foggable = 247, sprite = 0x8bf4c90,
    offset_x = 136803896, offset_y = -1086092696}, {foggable = 109,
    sprite = 0x8b79288, offset_x = -1086092708, offset_y = 0}}
        count = 2
#6  0x08062e1e in update_map_canvas (canvas_x=10, canvas_y=210, width=141,
    height=40) at mapview_common.c:1066
        cx = 110
        cy = 210
        pedge = (struct tile_edge *) 0x0
        pcorner = (struct tile_corner *) 0x0
        GRI_edge = {type = EDGE_WE, tile = {0xb5786c68, 0xb5786cb0}}
---Type <return> to continue, or q <return> to quit---
        GRI_corner = {tile = {0xb57856c0, 0xb5785708, 0xb5786cf8, 0xb5786cb0}}
        ptile = (struct tile *) 0xb5786cb0
        gui_x0 = 1160
        gui_y0 = 1200
        tmp = Variable "tmp" is not available.
(gdb)