linux-kernel - RE: 2.6.24.7-rt26 and 2.6.26.8-rt13

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Date:	Wed, 21 Jan 2009 13:30:41 +0100
From:	Lampersperger Andreas <lampersperger.andreas@...denhain.de>
To:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>
Subject: RE: 2.6.24.7-rt26 and 2.6.26.8-rt13

Hi,

I'm using kernel 2.6.26.8-rt13 with CONFIG_DYNAMIC_FTRACE=y set.
When loading a kernel object the following message appear:

BUG: sleeping function called from invalid context insmod(1370) at include/asm/uaccess_32.h:560
in_atomic():0 [00000000], irqs_disabled():1
Pid: 1370, comm: insmod Not tainted 2.6.26.8-rt13-heros5 #8
 [<c011e13e>] __might_sleep+0xe5/0xea
 [<c011439a>] ftrace_modify_code+0x22/0xa6
 [<c0114364>] ? ftrace_test_p6nop+0x0/0xa
 [<c0162fb4>] __ftrace_update_code+0xed/0x2cf
 [<c0114364>] ? ftrace_test_p6nop+0x0/0xa
 [<c0163730>] ftrace_convert_nops+0x57/0x73
 [<c0163761>] ftrace_init_module+0x15/0x17
 [<c01491da>] sys_init_module+0x14c9/0x1a7d
 [<c016d89d>] ? generic_file_aio_read+0x49a/0x4d6
 [<c0311ef9>] ? sub_preempt_count+0xa2/0xb0
 [<c02180c4>] ? strpbrk+0x0/0x2b
 [<c019b7b9>] ? dput+0x34/0xe4
 [<c0104b31>] sysenter_past_esp+0x6a/0x99
 =======================

Is it not possible to use rt-patches and dynamic tracepoints?

-Andreas


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