hi.
I have installed kali linux 1.0.9 in a virtualbox VM guest (ubuntu 14.10 host)
I have bought a TP-Link WN722N usb wifi card. and use the USB pass through method of virtualbox to use it natively inside kali guest.
It is working fine.
But once in a while (say every one hour), I got a complete lock-up of the network (both virtual ethernet and usb wifi)
I have found in dmesg some stack trace like this
Code:
[ 8280.748310] INFO: task vminfo:2168 blocked for more than 120 seconds.
[ 8280.748321] Tainted: G O 3.14-kali1-amd64 #1
[ 8280.748325] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 8280.748331] vminfo D ffff880069b74868 0 2168 1 0x00000000
[ 8280.748339] ffff880069b74450 0000000000000086 0000000000000001 ffffffff81813480
[ 8280.748346] 0000000000014340 ffff88006a45ffd8 0000000000014340 ffff880069b74450
[ 8280.748352] 0000000000000000 ffffffff81888980 ffffffff81888984 ffff880069b74450
[ 8280.748359] Call Trace:
[ 8280.748375] [<ffffffff814ec719>] ? schedule_preempt_disabled+0x9/0x10
[ 8280.748385] [<ffffffff814ee252>] ? __mutex_lock_slowpath+0x142/0x1c0
[ 8280.748394] [<ffffffff814ee2e6>] ? mutex_lock+0x16/0x25
[ 8280.748405] [<ffffffff81412b4a>] ? dev_ioctl+0x33a/0x560
[ 8280.748417] [<ffffffff8117e966>] ? kmem_cache_alloc+0x1a6/0x1c0
[ 8280.748428] [<ffffffff813e3ac5>] ? sock_do_ioctl+0x55/0x60
[ 8280.748438] [<ffffffff813e3d90>] ? sock_ioctl+0x70/0x2b0
[ 8280.748449] [<ffffffff811985c6>] ? alloc_file+0x26/0xe0
[ 8280.748459] [<ffffffff811a8b4e>] ? do_vfs_ioctl+0x7e/0x500
[ 8280.748469] [<ffffffff813e4a3a>] ? sock_alloc_file+0x9a/0x130
[ 8280.748479] [<ffffffff811b2d13>] ? __fd_install+0x23/0x60
[ 8280.748488] [<ffffffff811a9069>] ? SyS_ioctl+0x99/0xb0
[ 8280.748499] [<ffffffff813e6d1b>] ? SyS_socket+0x3b/0x70
[ 8280.748509] [<ffffffff814f7879>] ? system_call_fastpath+0x16/0x1b
is it a bug in the wifi driver ? a problem with the wifi card ?
but since I have also a problem with virtual ethernet, I was more thinking about some kernel bug or a VM/virtualbox bug ?