I got this in dmesg when trying to rsync a windows 7 install dvd to a 4G flash drive: [227761.643001] INFO: task pdflush:19635 blocked for more than 120 seconds. [227761.643010] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [227761.643016] pdflush D 00000000ffffffff 0 19635 2 0x00000000 [227761.643029] ffff8801189f9d20 0000000000000046 0000000000000000 0000000000015880 [227761.643040] ffff88001af35e70 0000000000015880 0000000000015880 0000000000015880 [227761.643050] 0000000000015880 ffff88001af35e70 0000000000015880 0000000000015880 [227761.643060] Call Trace: [227761.643078] [<ffffffff815291bd>] __down_read+0x8d/0xc6 [227761.643088] [<ffffffff81528589>] down_read+0x19/0x20 [227761.643097] [<ffffffff81120ed5>] sync_supers+0x75/0xe0 [227761.643107] [<ffffffff810e2615>] wb_kupdate+0x35/0x140 [227761.643116] [<ffffffff810e411e>] __pdflush+0x13e/0x260 [227761.643125] [<ffffffff810e4240>] ? pdflush+0x0/0x50 [227761.643133] [<ffffffff810e4288>] pdflush+0x48/0x50 [227761.643141] [<ffffffff810e25e0>] ? wb_kupdate+0x0/0x140 [227761.643149] [<ffffffff810e4240>] ? pdflush+0x0/0x50 [227761.643159] [<ffffffff81078746>] kthread+0xa6/0xb0 [227761.643168] [<ffffffff810130ea>] child_rip+0xa/0x20 [227761.643176] [<ffffffff810786a0>] ? kthread+0x0/0xb0 [227761.643183] [<ffffffff810130e0>] ? child_rip+0x0/0x20
-- file transfers on USB disk are very slow https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
