This is what i get when running 20 instances of uml in a vmware,
kernel is 2.6.39.4.
Thanks !


Starting system logger: [  OK  ]
Retrigger failed udev events[  OK  ]
[  156.810000] helper_wait : waitpid process 13447 failed, errno = 10
[  156.810000] * modprobe tun
[  156.810000] * ifconfig tap4 10.38.145.169 netmask 255.255.255.255 up
[  156.810000] * bash -c echo 1 > /proc/sys/net/ipv4/ip_forward
[  156.810000] Kernel panic - not syncing: Kernel mode signal 4
[  156.810000] 0861381c:  [<084d18bc>] dump_stack+0x1c/0x20
[  156.810000] 08613834:  [<084d190d>] panic+0x4d/0x13f
[  156.810000] 08613868:  [<08065b66>] relay_signal+0x30/0x72
[  156.810000] 08613888:  [<08071916>] sig_handler_common+0x61/0x70
[  156.810000] 08613900:  [<08071a3e>] sig_handler+0x31/0x3d
[  156.810000] 0861390c:  [<08071be2>] handle_signal+0x4d/0x7b
[  156.810000] 0861392c:  [<080732f7>] hard_handler+0xf/0x14
[  156.810000] 0861393c:  [<0068f400>] 0x68f400
[  156.810000] 08613c34:  [<080639e9>] do_IRQ+0x26/0x3d
[  156.810000] 08613c50:  [<08063b83>] sigio_handler+0x46/0x5f
[  156.810000] 08613c68:  [<08071916>] sig_handler_common+0x61/0x70
[  156.810000] 08613ce0:  [<08071a3e>] sig_handler+0x31/0x3d
[  156.810000] 08613cec:  [<08071be2>] handle_signal+0x4d/0x7b
[  156.810000] 08613d0c:  [<080732f7>] hard_handler+0xf/0x14
[  156.810000] 08613d1c:  [<0068f400>] 0x68f400
"bug3" 50 lines, 2697 characters



> Date: Sat, 24 Dec 2011 11:19:07 +0100
> Subject: Re: [uml-user] xterm got kill when i run application in uml, how come ?
> From: richard.weinberger@gmail.com
> To: ningji@hotmail.com
> CC: lars.g.ekman@ericsson.com; user-mode-linux-user@lists.sourceforge.net
>
> On Sat, Dec 24, 2011 at 4:42 AM, ning ji <ningji@hotmail.com> wrote:
> > I left the error message in the company, but briefly the TAP devices have
> > issues.
>
> Without the exact message nobody can help you.
>
> > So far this project turns out to be a mess and i'm praying they won't fire
> > me.
> >
>
> If UML is the root cause of your problems, there are lots of alternatives.
> Most UML users are using KVM today...
>
> --
> Thanks,
> //richard