Em 12-01-2011 08:25, Marek Szyprowski escreveu: > Hello Mauro, > > I've rebased our fimc and saa patches onto http://linuxtv.org/git/mchehab/experimental.git > vb2_test branch. > > The last 2 patches are for SAA7134 driver and are only to show that videobuf2-dma-sg works > correctly. On my first test with saa7134, it hanged. It seems that the code reached a dead lock. On my test environment, I'm using a remote machine, without monitor. My test is using qv4l2 via a remote X server. Using a remote X server is an interesting test, as it will likely loose some frames, increasing the probability of races and dead locks. That's what happened: Linux video capture interface: v2.00 saa7130/34: v4l2 driver version 0.2.16 loaded saa7130/34: w/o radio and vbi saa7133[0]: found at 0000:37:09.0, rev: 209, irq: 21, latency: 32, mmio: 0xfb000 saa7133[0]: subsystem: 17de:b136, board: Kworld PCI SBTVD/ISDB-T Full-Seg Hybri] saa7133[0]: board init: gpio is 4000 hwinit1 IRQ 21/saa7133[0]: IRQF_DISABLED is not guaranteed on shared IRQs saa7133[0]/irq: no (more) work saa7133[0]: i2c eeprom 00: de 17 36 b1 54 20 1c 00 43 43 a9 1c 55 d2 b2 92 saa7133[0]: i2c eeprom 10: ff ff ff ff ff 20 ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 20: 01 40 01 03 03 ff 01 03 08 ff 01 90 ff ff ff ff saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 40: ff 1c 00 c0 ff 1c 01 00 ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff Chip ID is not zero. It is not a TEA5767 tuner 2-0060: chip found @ 0xc0 (saa7133[0]) tda18271 2-0060: creating new instance TDA18271HD/C2 detected @ 2-0060 hwinit2 tda18271: performing RF tracking filter calibration tda18271: RF tracking filter calibration complete DCSDT: pll: not locked, sync: no, norm: (no signal) saa7133[0]: registered device video0 [v4l2] saa7134_dvb: disagrees about version of symbol videobuf_dvb_alloc_frontend saa7134_dvb: Unknown symbol videobuf_dvb_alloc_frontend saa7134_dvb: Unknown symbol saa7134_ts_register saa7134_dvb: disagrees about version of symbol videobuf_dvb_get_frontend saa7134_dvb: Unknown symbol videobuf_dvb_get_frontend saa7134_dvb: disagrees about version of symbol videobuf_queue_sg_init saa7134_dvb: Unknown symbol videobuf_queue_sg_init saa7134_dvb: disagrees about version of symbol saa7134_set_gpio saa7134_dvb: Unknown symbol saa7134_set_gpio saa7134_dvb: Unknown symbol saa7134_ts_qops saa7134_dvb: Unknown symbol saa7134_ts_unregister saa7134_alsa: Unknown symbol saa7134_tvaudio_setmute saa7134_alsa: Unknown symbol saa_dsp_writel saa7134_alsa: disagrees about version of symbol saa7134_boards saa7134_alsa: Unknown symbol saa7134_boards saa7134_alsa: disagrees about version of symbol saa7134_dmasound_init saa7134_alsa: Unknown symbol saa7134_dmasound_init saa7134_alsa: disagrees about version of symbol saa7134_dmasound_exit saa7134_alsa: Unknown symbol saa7134_dmasound_exit saa7134_alsa: disagrees about version of symbol saa7134_set_dmabits saa7134_alsa: Unknown symbol saa7134_set_dmabits saa7134_reqbufs: ffff880051ecd528 ffff880051d2fd48 queue_setup vb2_dma_sg_alloc: Allocated buffer of 304 pages saa7134_querybuf: ffff880051ecd528 ffff880051d2fd48 saa7134_reqbufs: ffff880051ecd528 ffff880051d2fd48 vb2_dma_sg_put: Freeing buffer of 304 pages queue_setup saa7134_reqbufs: ffff880051ecd528 ffff880051d2fd48 queue_setup vb2_dma_sg_alloc: Allocated buffer of 304 pages vb2_dma_sg_alloc: Allocated buffer of 304 pages vb2_dma_sg_alloc: Allocated buffer of 304 pages saa7134_querybuf: ffff880051ecd528 ffff880051d2fd48 vb2_common_vm_open: ffff880067d1b178, refcount: 1, vma: 7fa8e0d67000-7fa8e0e9700 saa7134_querybuf: ffff880051ecd528 ffff880051d2fd48 vb2_common_vm_open: ffff8800a21cb278, refcount: 1, vma: 7fa8e0c37000-7fa8e0d6700 saa7134_querybuf: ffff880051ecd528 ffff880051d2fd48 vb2_common_vm_open: ffff880067c84ef8, refcount: 1, vma: 7fa8e0b07000-7fa8e0c3700 saa7134_qbuf: ffff880051ecd528 ffff880051d2fd48 buffer_prepare: sglist:ffffc90005139000 num_pages:304 saa7134_qbuf: ffff880051ecd528 ffff880051d2fd48 buffer_prepare: sglist:ffffc900051ab000 num_pages:304 saa7134_qbuf: ffff880051ecd528 ffff880051d2fd48 buffer_prepare: sglist:ffffc900051bf000 num_pages:304 saa7134_streamon: ffff880051ecd528 buffer_queue buffer_queue ffff880067dd9800 buffer_activate buf=ffff880067dd9800 saa7134_set_dmabits dmabits: task=0x01 ctrl=0x01 irq=0x3 split=yes buffer_queue buffer_queue ffff880051ecd000 buffer_queue buffer_queue ffff880088e69800 video_poll: ffff880051ecd528 video_poll: ffff880051ecd528 video_poll: ffff880051ecd528 video_poll: ffff880051ecd528 saa7133[0]/irq[0,4317235087]: r=0x1 s=0x90 DONE_RA0 | RA0=video,a,odd,0 buffer_finish ffff880067dd9800 bu (yes, the last msg become incomplete on my serial console) I've rebooted and did more tests, with mmap and qv4l2. On all cases, the first time, the stream worked, but after a stream off/stream on, it didn't start. read() didn't work. After that, I did a test with v4l2grab. It also hanged. The last messages were: saa7134_set_dmabits dmabits: task=0x01 ctrl=0x01 irq=0x3 split=yes buffer_queue buffer_queue ffff880110a82800 video_poll: ffff88010feac528 saa7133[0]/irq[0,4295231408]: r=0x1 s=0x90 DONE_RA0 | RA0=video,a,odd,0 buffer_finish ffff88010fe33000 buffer_next ffff880110a82800 [prev=ffff88 So, it seems that there's something wrong on it. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
