Quando eu cp ou dd um arquivo ISO (> 1GB) para um disco usb, o kernel me diz isso. Eu pesquisei no Google, há anos vem acontecendo nos relatórios de bugs do Launchpad, por que depois de tantos anos isso ainda não pode ser resolvido? Eu costumava usar o Fedora antes, não tem esse problema.
Versão do SO: Ubuntu 16.04.3 LTS kernel: 4.10.0-28-genérico & amp; 4.10.0-40-generic (ambos os mesmos problemas)
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913106] INFO: task systemd-udevd:295 blocked for more than 120 seconds.
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913117] Not tainted 4.10.0-28-generic #32~16.04.2-Ubuntu
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913121] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913127] systemd-udevd D 0 295 1 0x00000004
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913133] Call Trace:
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913146] __schedule+0x232/0x700
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913151] schedule+0x36/0x80
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913156] schedule_preempt_disabled+0xe/0x10
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913160] __mutex_lock_slowpath+0x193/0x290
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913164] mutex_lock+0x2f/0x40
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913169] __blkdev_get+0x6f/0x400
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913173] blkdev_get+0x129/0x330
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913177] blkdev_open+0x82/0xd0
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913183] do_dentry_open+0x208/0x310
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913187] ? blkdev_get_by_dev+0x50/0x50
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913192] vfs_open+0x4c/0x70
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913196] ? may_open+0x9b/0x100
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913200] path_openat+0x2ac/0x1430
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913205] do_filp_open+0x91/0x100
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913211] ? __alloc_fd+0x46/0x170
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913216] do_sys_open+0x12d/0x280
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913222] SyS_open+0x1e/0x20
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913227] entry_SYSCALL_64_fastpath+0x1e/0xad
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913231] RIP: 0033:0x7ff789a25c60
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913234] RSP: 002b:00007fff8a6c70b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913239] RAX: ffffffffffffffda RBX: 0000560368fd3cf0 RCX: 00007ff789a25c60
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913241] RDX: 00005603677f6592 RSI: 00000000000a0800 RDI: 0000560368fd5b90
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913244] RBP: 0000000000000000 R08: 0000000000000073 R09: 0000000000000003
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913246] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Nov 30 23:33:38 UbuntuPC kernel: [ 2417.913248] R13: 0000560368fd3cf0 R14: 00007fff8a6c7030 R15: 0000000000000000