Мистическое зависание
[72504.088022] tty_ldisc_hangup: waiting (login) for tty1 took too long, but we keep waiting...
[72720.672046] INFO: task beam.smp:15527 blocked for more than 120 seconds.
[72720.676946] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[72720.681832] beam.smp D ffff88023fd93780 0 15527 13158 0x00000000
[72720.681846] ffff8802340c80c0 0000000000000082 ffffffff00000000 ffff880236d43100
[72720.681867] 0000000000013780 ffff88023598dfd8 ffff88023598dfd8 ffff8802340c80c0
[72720.681886] 0000000000000246 000000018107116d 0000000000000246 ffff880235c00800
[72720.681906] Call Trace:
[72720.681920] [] ? tty_ldisc_ref_wait+0x6f/0x91
[72720.681932] [] ? timerqueue_del+0x53/0x63
[72720.681946] [] ? add_wait_queue+0x3c/0x3c
[72720.681958] [] ? tty_poll+0x3e/0x6f
[72720.681970] [] ? ep_send_events_proc+0x42/0xde
[72720.681981] [] ? should_resched+0x5/0x23
[72720.681991] [] ? ep_read_events_proc+0x59/0x59
[72720.682003] [] ? ep_scan_ready_list.isra.7+0x87/0x15b
[72720.682014] [] ? sys_epoll_wait+0x287/0x308
[72720.682025] [] ? try_to_wake_up+0x197/0x197
[72720.682037] [] ? system_call_fastpath+0x16/0x1b
[72840.680045] INFO: task beam.smp:15527 blocked for more than 120 seconds.
[72840.684169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Дополнительный синдром в dmesg:
[ 10.497712] [drm:r100_cp_init] *ERROR* Failed to load firmware!
[ 10.497789] radeon 0000:04:02.0: failed initializing CP (-2).
[ 10.497859] radeon 0000:04:02.0: Disabling GPU acceleration
Решение:
install linux-firmare-nonfree and reboot.