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Date: Thu, 01 Oct 2009 09:12:41 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] Kernel panic on reboot (Xenomai 2.4.9.1,
 kernel 2.6.31, x86 SMP)
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To: Rob Stocks <rjs@domain.hid>
Cc: xenomai@xenomai.org

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Rob Stocks wrote:
> We have a problem with Xenomai v2.4.9.1, kernel 2.6.31, x86 SMP in that=
 we
> get a kernel panic on reboot:
>=20
> 	swapper[0]: segfault at 15aba ip 0000e6ba sp 00000189 error 4
> 	no vm86_info: BAD
> 	Kernel panic - not syncing: Attempted to kill the idle task!
> 	Pis: 0, comm.: swapper Not tainted 2.6.31-CROCUS #1
> 	Call Trace:
> 	 [<810280cb>] panic+0x49/0xed
> 	 [<8102a6f6>] do_exit+0x55/0xdc4
> 	 [<81028fec>] ? printk+0x9f/0x104
> 	 [<810031ec>] ? reboot_interrupt+0x0/0x38
> 	 [<81014af7>] save_v86_state+0xa6/0x168
> 	 [<810031ec>] ? reboot_interrupt+0x0/0x38
> 	 [<81002ac6>] work_notifysig_v86+0x06/0x18
> 	 [<810031ec>] ? reboot_interrupt+0x0/0x38
> 	reboot[1781]: segfault at 15aba ip 0000e6ba sp 00000189 error 4
> 	no vm86_info: BAD
>=20
> Other than this, it seems to work fine.
>=20
> We had previously been using v2.4.7, kernel 2.6.28.7 which does not hav=
e
> this issue but for development, we would like to use X and we find that=
 some
> X applications (e.g. Netbeans & eclipse) hang the system (with no indic=
ation
> of cause i.e. no console messages & nothing in the logs - the system ju=
st
> stops). However, when we use v2.4.9.1 with kernel 2.6.31, we can use X =
apps
> perfectly but we can't reboot!
>=20
> Anyone have any ideas/suggestions?

Please provide your .config, I'll try to have a look.

Jan


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