It appears 'pipe' is NULL in the Mesa source at:
static void
end_query(struct gl_context *ctx, struct gl_query_object *q)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = ctx->pipe;
bool ret = false;
st_flush_bitmap_cache(st_context(ctx));
if ((q->Target == GL_TIMESTAMP ||
q->Target == GL_TIME_ELAPSED) &&
!q->pq) {
q->pq = pipe->create_query(pipe, PIPE_QUERY_TIMESTAMP, 0);
q->type = PIPE_QUERY_TIMESTAMP;
}
I can't reproduce the problem myself so I wonder are you using two GPUs?
Do you have a monitor plugged into an Nvidia GPU?
** Bug watch added: gitlab.freedesktop.org/mesa/mesa/-/issues #9889
https://gitlab.freedesktop.org/mesa/mesa/-/issues/9889
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https://bugs.launchpad.net/bugs/2037497
Title:
gnome-shell crashed with SIGSEGV at NULL from end_query() from
cogl_gl_create_timestamp_query() from
cogl_onscreen_egl_swap_buffers_with_damage()
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