#0  ErrorFSigSafe (f=f@entry=0x559c102d2c4c "\n") at ../../../../os/log.c:1052
  1047:     LogVMessageVerbSigSafe(X_ERROR, -1, f, args);
  1048: }
  1049: 
  1050: void
  1051: ErrorFSigSafe(const char *f, ...)
  1052: {
  1053:     va_list args;
  1054: 
  1055:     va_start(args, f);
  1056:     VErrorFSigSafe(f, args);
  1057:     va_end(args);
#1  0x0000559c102977e2 in xorg_backtrace () at ../../../../os/backtrace.c:123
  118:     void *array[BT_SIZE];
  119:     const char *mod;
  120:     int size, i;
  121:     Dl_info info;
  122: 
  123:     ErrorFSigSafe("\n");
  124:     ErrorFSigSafe("Backtrace:\n");
  125:     size = backtrace(array, BT_SIZE);
  126:     for (i = 0; i < size; i++) {
  127:         int rc = dladdr(array[i], &info);
  128: 
#2  0x0000559c1029b599 in OsSigHandler (signo=7, sip=0x7fff0a6c8b30, unused=<optimized out>) at ../../../../os/osinit.c:136
  131:             return;
  132:         }
  133:     }
  134: 
  135:     /* log, cleanup, and abort */
  136:     xorg_backtrace();
  137: 
  138: #ifdef SA_SIGINFO
  139:     if (sip->si_code == SI_USER) {
  140:         ErrorFSigSafe("Received signal %u sent by process %u, uid %u\n", signo,
  141:                      sip->si_pid, sip->si_uid);
#3  <signal handler called>
#4  _dl_fixup (l=0x559c10faa5a0, reloc_arg=<optimized out>) at ../elf/dl-runtime.c:84
  [Error: dl-runtime.c was not found in source tree]
#5  0x00007f4c0c9317ca in _dl_runtime_resolve_xsavec () at ../sysdeps/x86_64/dl-trampoline.h:125
  [Error: dl-trampoline.h was not found in source tree]
#6  0x00007f4c03c31592 in create_bits_picture (yoff=0x7fff0a6c9594, xoff=0x7fff0a6c9590, has_clip=1, pict=0x559c129a29d0) at ../../../../fb/fbpict.c:325
  320:     if (has_clip) {
  321:         if (pict->clientClip)
  322:             pixman_image_set_has_client_clip(image, TRUE);
  323: 
  324:         if (*xoff || *yoff)
  325:             pixman_region_translate(pict->pCompositeClip, *xoff, *yoff);
  326: 
  327:         pixman_image_set_clip_region(image, pict->pCompositeClip);
  328: 
  329:         if (*xoff || *yoff)
  330:             pixman_region_translate(pict->pCompositeClip, -*xoff, -*yoff);
#7  image_from_pict_internal (pict=pict@entry=0x559c129a29d0, has_clip=has_clip@entry=1, xoff=xoff@entry=0x7fff0a6c9590, yoff=yoff@entry=0x7fff0a6c9594, is_alpha_map=is_alpha_map@entry=0) at ../../../../fb/fbpict.c:457
  452: 
  453:     if (!pict)
  454:         return NULL;
  455: 
  456:     if (pict->pDrawable) {
  457:         image = create_bits_picture(pict, has_clip, xoff, yoff);
  458:     }
  459:     else if (pict->pSourcePict) {
  460:         SourcePict *sp = pict->pSourcePict;
  461: 
  462:         if (sp->type == SourcePictTypeSolidFill) {
#8  0x00007f4c03c319c8 in wfb_image_from_pict (pict=pict@entry=0x559c129a29d0, has_clip=has_clip@entry=1, xoff=xoff@entry=0x7fff0a6c9590, yoff=yoff@entry=0x7fff0a6c9594) at ../../../../fb/fbpict.c:487
  482: }
  483: 
  484: pixman_image_t *
  485: image_from_pict(PicturePtr pict, Bool has_clip, int *xoff, int *yoff)
  486: {
  487:     return image_from_pict_internal(pict, has_clip, xoff, yoff, FALSE);
  488: }
  489: 
  490: void
  491: free_pixman_pict(PicturePtr pict, pixman_image_t * image)
  492: {
#9  0x00007f4c03c31b4c in wfbComposite (op=<optimized out>, pSrc=0x559c120a34e0, pMask=0x0, pDst=0x559c129a29d0, xSrc=<optimized out>, ySrc=<optimized out>, xMask=0, yMask=0, xDst=0, yDst=37, width=1440, height=836) at ../../../../fb/fbpict.c:59
  54:     if (pMask)
  55:         miCompositeSourceValidate(pMask);
  56: 
  57:     src = image_from_pict(pSrc, FALSE, &src_xoff, &src_yoff);
  58:     mask = image_from_pict(pMask, FALSE, &msk_xoff, &msk_yoff);
  59:     dest = image_from_pict(pDst, TRUE, &dst_xoff, &dst_yoff);
  60: 
  61:     if (src && dest && !(pMask && !mask)) {
  62:         pixman_image_composite(op, src, mask, dest,
  63:                                xSrc + src_xoff, ySrc + src_yoff,
  64:                                xMask + msk_xoff, yMask + msk_yoff,
#10 0x00007f4c050c94b7 in ?? () from /tmp/apport_sandbox_giipb_j7/usr/lib/x86_64-linux-gnu/nvidia/xorg/nvidia_drv.so
#11 0x0000000000000000 in ?? ()