Hello, I own a | 04:07.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) | Subsystem: Siemens AG Fujitsu/Siemens DVB-C card rev1.5 | Flags: bus master, medium devsel, latency 64, IRQ 16 | Memory at febff800 (32-bit, non-prefetchable) [size=512] | Kernel driver in use: av7110 | Kernel modules: dvb_ttpci with the analog module, which I still sometimes use to digitalize some old videos. I'm using ffmpeg to read /dev/video0, which sometimes doesn't terminate when I stop the proces with SIGINT. The Linux kernel then starts logging this message: > INFO: task ffmpeg:9864 blocked for more than 120 seconds. > Tainted: P O 4.6.7 #3 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > ffmpeg D ffff880177cc7b00 0 9864 1 0x00000000 > ffff880177cc7b00 0000000000000202 0000000000000202 ffffffff8180b4c0 > ffff88019d79e4c0 ffffffff81064050 ffff880177cc7ae0 ffff880177cc8000 > ffff880177cc7b18 ffff8801fd41d648 ffff8802307acca0 ffff8802307acc70 > Call Trace: > [<ffffffff81064050>] ? preempt_count_add+0x89/0xab > [<ffffffff81477215>] schedule+0x86/0x9e > [<ffffffff81477215>] ? schedule+0x86/0x9e > [<ffffffffa0fe1c96>] videobuf_waiton+0x131/0x15e [videobuf_core] > [<ffffffff8107727b>] ? wait_woken+0x6d/0x6d > [<ffffffffa1017be9>] saa7146_dma_free+0x39/0x5b [saa7146_vv] > [<ffffffffa10186c4>] buffer_release+0x2a/0x3e [saa7146_vv] > [<ffffffffa0fee4a8>] videobuf_vm_close+0xd8/0x103 [videobuf_dma_sg] > [<ffffffff8112049e>] remove_vma+0x25/0x4d > [<ffffffff81121a32>] exit_mmap+0xce/0xf7 > [<ffffffff8104381d>] mmput+0x4e/0xe2 > [<ffffffff810491fd>] do_exit+0x372/0x920 > [<ffffffff81049813>] do_group_exit+0x3c/0x98 > [<ffffffff810522ef>] get_signal+0x4e8/0x56e > [<ffffffff810710a5>] ? task_dead_fair+0xd/0xf > [<ffffffff81017020>] do_signal+0x23/0x521 > [<ffffffff81479e82>] ? _raw_spin_unlock_irqrestore+0x13/0x25 > [<ffffffff8109710d>] ? hrtimer_try_to_cancel+0xd7/0x104 > [<ffffffff8109b306>] ? ktime_get+0x4c/0xa1 > [<ffffffff81096ea6>] ? update_rmtp+0x46/0x5b > [<ffffffff81097ce0>] ? hrtimer_nanosleep+0xe4/0x10e > [<ffffffff81096e3c>] ? hrtimer_init+0xeb/0xeb > [<ffffffff810014f8>] exit_to_usermode_loop+0x4f/0x93 > [<ffffffff810019fe>] syscall_return_slowpath+0x3b/0x46 > [<ffffffff8147a355>] entry_SYSCALL_64_fastpath+0x8d/0x8f I'm running Debian-Sid on linux-4.6.7. I need to reboot the PC to get back a working /dev/video0 - Is this a known problem? - Is the a fix? - What extra data is needed to fix it? Thanks in advance. Philipp -- / / (_)__ __ ____ __ Philipp Hahn / /__/ / _ \/ // /\ \/ / /____/_/_//_/\_,_/ /_/\_\ pmhahn@xxxxxxxxx -- 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
