This message print from R_SwitchModelMemPoolTag.
(gdb) bt
#0 R_SwitchModelMemPoolTag () at src/client/renderer/r_model.c:248
#1 0x000000000043e062 in CL_InitAfter () at src/client/cl_main.c:732
#2 0x000000000050fb1c in Qcommon_Init (argc=1, argv=0x7fffffffdb48)
at src/common/common.c:929
#3 0x00000000005b2fb6 in main (argc=1, argv=0x7fffffffdb48)
at src/ports/linux/linux_main.c:48
(gdb) p mod->alias.meshes[j].skins[k].skin
$1 = (image_t *) 0xeb98520
(gdb) p *mod->alias.meshes[j].skins[k].skin
$2 = {name = "***r_notexture***", '\000' <repeats 46 times>, type = it_effect,
width = 8, height = 8, upload_width = 8, upload_height = 8,
texturechain = 0x0, texnum = 9, has_alpha = qtrue, material = {flags = 0,
time = 0, bump = 0, parallax = 0, hardness = 0, specular = 0,
glowscale = 0, stages = 0x0, num_stages = 0}, normalmap = 0x0,
glowmap = 0x0, hashNext = 0x0, hashPrev = 0x0}
(gdb) p r_noTexture
$3 = (image_t *) 0xeb98520
Where does loader of skins place in?