Прыщедрайвер АЦП от Texas Instruments решил повиснуть, в результате у экструдера PODGORELO с дымком:
[3682597.841112] INFO: task python2:22591 blocked for more than 120 seconds.
[3682597.841135] Not tainted 4.14.13 #5
[3682597.841141] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[3682597.841151] python2 D 0 22591 1 0x00000000
[3682597.841210] [<c0d29a78>] (__schedule) from [<c0d29f80>] (schedule+0x60/0xfc)
[3682597.841231] [<c0d29f80>] (schedule) from [<c092900c>] (am335x_tsc_se_set_once+0xec/0x144)
[3682597.841254] [<c092900c>] (am335x_tsc_se_set_once) from [<c0b506e4>] (tiadc_read_raw+0xe4/0x1b4)
[3682597.841281] [<c0b506e4>] (tiadc_read_raw) from [<c0b48a60>] (iio_read_channel_info+0xb8/0xc0)
[3682597.841308] [<c0b48a60>] (iio_read_channel_info) from [<c08f5288>] (dev_attr_show+0x2c/0x58)
[3682597.841327] [<c08f5288>] (dev_attr_show) from [<c039dd68>] (sysfs_kf_seq_show+0x98/0x100)
[3682597.841351] [<c039dd68>] (sysfs_kf_seq_show) from [<c039c53c>] (kernfs_seq_show+0x34/0x38)
[3682597.841639] [<c039c53c>] (kernfs_seq_show) from [<c033a774>] (seq_read+0xe4/0x55c)
[3682597.841655] [<c033a774>] (seq_read) from [<c039d458>] (kernfs_fop_read+0x148/0x1dc)
[3682597.841670] [<c039d458>] (kernfs_fop_read) from [<c031103c>] (__vfs_read+0x28/0x48)
[3682597.841683] [<c031103c>] (__vfs_read) from [<c03110f8>] (vfs_read+0x9c/0x164)
[3682597.841695] [<c03110f8>] (vfs_read) from [<c03115bc>] (SyS_read+0x5c/0xbc)
[3682597.841716] [<c03115bc>] (SyS_read) from [<c01093a0>] (ret_fast_syscall+0x0/0x5c)
http://meta-arago.arago-project.narkive.com/OBDSxeg1/deadlock-while-reading-from-ti-am335x-adc-in-voltagex-raw-sources // ниче нинаем юзайте continuous mode