Hi Florian On Tue, 28 Mar 2023 at 08:52, Florian Echtler <floe@xxxxxxxxxxxxxx> wrote: > > Hello everyone, > > I'm running a Raspberry Pi with HQ camera as timelapse webcam. Everything seems > to be working fine, so this is probably relatively low priority, but I still > wanted to mention that I'm getting the following backtrace in > media_pipeline_stop for every picture taken with libcamera: bcm2835-unicam hasn't been merged to mainline as yet - it's only in our downstream kernel tree. Please raise an issue on https://github.com/raspberrypi/linux/issues/, or start a thread on our forums. Thanks Dave > [244731.171175] ------------[ cut here ]------------ > [244731.171210] WARNING: CPU: 0 PID: 900 at drivers/media/mc/mc-entity.c:873 > media_pipeline_stop+0x28/0x34 [mc] > [244731.171417] Modules linked in: cmac algif_hash aes_arm aes_generic ecb > algif_skcipher af_alg bnep imx477 hci_uart btbcm bluetooth brcmfmac ecdh_generic > ecc libaes vc4 brcmutil sha256_generic libsha256 snd_soc_hdmi_codec 8021q garp > stp llc drm_display_helper cec cfg80211 drm_dma_helper drm_kms_helper > snd_soc_core bcm2835_unicam snd_compress v4l2_dv_timings snd_pcm_dmaengine > syscopyarea v4l2_fwnode sysfillrect sysimgblt bcm2835_codec(C) i2c_mux_pinctrl > fb_sys_fops i2c_mux raspberrypi_hwmon v4l2_async bcm2835_v4l2(C) bcm2835_isp(C) > v4l2_mem2mem bcm2835_mmal_vchiq(C) rfkill videobuf2_vmalloc videobuf2_dma_contig > videobuf2_memops videobuf2_v4l2 videobuf2_common snd_bcm2835(C) videodev snd_pcm > snd_timer i2c_bcm2835 snd vc_sm_cma(C) mc uio_pdrv_genirq uio fixed drm fuse > drm_panel_orientation_quirks backlight ip_tables x_tables ipv6 > [244731.171829] CPU: 0 PID: 900 Comm: raspberry_fakeh Tainted: G WC > 6.1.19+ #1637 > [244731.171848] Hardware name: BCM2835 > [244731.171865] unwind_backtrace from show_stack+0x18/0x1c > [244731.171904] show_stack from dump_stack_lvl+0x34/0x58 > [244731.171934] dump_stack_lvl from __warn+0x7c/0xf8 > [244731.171967] __warn from warn_slowpath_fmt+0x60/0xcc > [244731.172002] warn_slowpath_fmt from media_pipeline_stop+0x28/0x34 [mc] > [244731.172150] media_pipeline_stop [mc] from unicam_stop_streaming+0x88/0x168 > [bcm2835_unicam] > [244731.172343] unicam_stop_streaming [bcm2835_unicam] from > __vb2_queue_cancel+0x30/0x284 [videobuf2_common] > [244731.172554] __vb2_queue_cancel [videobuf2_common] from > vb2_core_streamoff+0x20/0xb8 [videobuf2_common] > [244731.172739] vb2_core_streamoff [videobuf2_common] from > __video_do_ioctl+0x224/0x458 [videodev] > [244731.173460] __video_do_ioctl [videodev] from video_usercopy+0x118/0x574 > [videodev] > [244731.174268] video_usercopy [videodev] from sys_ioctl+0x10c/0x90c > [244731.174705] sys_ioctl from ret_fast_syscall+0x0/0x1c > [244731.174732] Exception stack(0xdc905fa8 to 0xdc905ff0) > [244731.174752] 5fa0: a4311ef0 a430d65c 0000000f 40045613 > a4312f30 00000000 > [244731.174770] 5fc0: a4311ef0 a430d65c a430d670 00000036 0238e568 00000000 > b6e90134 0238e508 > [244731.174783] 5fe0: a52b9d44 a4cc770c a5237940 b6d0dd4c > [244731.174795] ---[ end trace 0000000000000000 ]--- > > Best, Florian > -- > SENT FROM MY DEC VT50 TERMINAL
