From: Michael Buesch <mbuesch@freenet.de>
To: linux-kernel@vger.kernel.org
Subject: PowerPC: Sleeping function called from invalid context at emulate_instruction()
Date: Wed, 22 Feb 2006 21:29:31 +0100 [thread overview]
Message-ID: <200602222129.31700.mbuesch@freenet.de> (raw)
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Hi,
On a powerPC 32bit, I got the following debugging assertion failure:
[ 733.209827] Debug: sleeping function called from invalid context at arch/powerpc/kernel/traps.c:697
[ 733.210682] in_atomic():0, irqs_disabled():1
[ 733.211347] Call Trace:
[ 733.211969] [D6023EB0] [C0007F84] show_stack+0x58/0x174 (unreliable)
[ 733.212765] [D6023EE0] [C0022C34] __might_sleep+0xbc/0xd0
[ 733.213523] [D6023EF0] [C000D158] program_check_exception+0x1d8/0x4fc
[ 733.214309] [D6023F40] [C000E744] ret_from_except_full+0x0/0x4c
[ 733.215076] --- Exception: 700 at 0x102a7100
[ 733.215785] LR = 0xdb9ef04
It is caused by the line
if (get_user(instword, (u32 __user *)(regs->nip)))
in arch/powerpc/kernel/traps.c:emulate_instruction()
I am not sure, if this is an indication for a bug, or just false alarm.
In case of false alarm, the debugging message should be made quiet
somehow, though.
--
Greetings Michael.
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next reply other threads:[~2006-02-22 20:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-22 20:29 Michael Buesch [this message]
2006-02-23 4:22 ` PowerPC: Sleeping function called from invalid context at emulate_instruction() Kumar Gala
2006-02-23 22:57 ` Paul Mackerras
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