Date: Tue, 13 Jan 2026 02:19:33 +0000 From: bugzilla-noreply@freebsd.org To: gnome@FreeBSD.org Subject: [Bug 287078] multimedia/cheese: fails to show images/video for a working webcam Message-ID: <bug-287078-6497-uwWSNLqMRO@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-287078-6497@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=287078 --- Comment #3 from Marcin Cieślak <saper@saper.info> --- here's the webcamd side of things: Thread 15 hit Breakpoint 1, vb2_core_expbuf (q=0x801e872e0, fd=0x7fffde5f0cc0, type=1, index=4294967295, plane=4294967295, flags=1048578) at media_tree/drivers/media/common/videobuf2/videobuf2-core.c:2192 2192 struct vb2_buffer *vb = NULL; (gdb) p *q $1 = {type = 1, io_modes = 19, dev = 0x0, dma_attrs = 0, bidirectional = 0, fileio_read_once = 0, fileio_write_immediately = 0, allow_zero_bytesused = 0, quirk_poll_must_check_waiting_for_buffers = 1, supports_requests = 0, requires_requests = 0, uses_qbuf = 0, uses_requests = 0, allow_cache_hints = 0, non_coherent_mem = 0, lock = 0x801e87510, owner = 0x0, ops = 0x1675f80 <uvc_queue_qops>, mem_ops = 0x166d198 <vb2_vmalloc_memops>, buf_ops = 0x166d158 <v4l2_buf_ops>, drv_priv = 0x801e872e0, subsystem_flags = 0, buf_struct_size = 984, timestamp_flags = 73728, gfp_flags = 0, min_buffers_needed = 0, alloc_devs = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, mmap_lock = {sem = {value = 1, owner = 0xffffffffffffffff}}, memory = 0, dma_dir = (unknown: 0x1), bufs = {0x0 <repeats 32 times>}, num_buffers = 0, queued_list = { next = 0x801e874a8, prev = 0x801e874a8}, queued_count = 0, owned_by_drv_count = {counter = 0}, done_list = {next = 0x801e874c0, prev = 0x801e874c0}, done_lock = {<No data fields>}, done_wq = { sleep_ref = 0, sleep_count = 0, do_selwakeup = 0}, streaming = 0, start_streaming_called = 0, error = 0, waiting_for_buffers = 0, waiting_in_dqbuf = 0, is_multiplanar = 0, is_output = 0, copy_timestamp = 0, last_buffer_dequeued = 0, fileio = 0x0, threadio = 0x0, name = "cap-0x801e872e0", '\000' <repeats 16 times>} (gdb) p index $2 = 4294967295 (gdb) p (int)index $3 = -1 (gdb) p (int)plane $4 = -1 (gdb) list 2187 } 2188 2189 int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type, 2190 unsigned int index, unsigned int plane, unsigned int flags) 2191 { 2192 struct vb2_buffer *vb = NULL; 2193 struct vb2_plane *vb_plane; 2194 int ret; 2195 struct dma_buf *dbuf; 2196 (gdb) n 2197 if (q->memory != VB2_MEMORY_MMAP) { (gdb) p q->memory $5 = 0 (gdb) n 2198 dprintk(q, 1, "queue is not currently set up for mmap\n"); -- You are receiving this mail because: You are the assignee for the bug.home | help
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