linux-kernel - [WARNING] lockdep and kmemcheck_alloc

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Message-ID: <1337449661.32434.4.camel@gandalf.stny.rr.com>
Date:	Sat, 19 May 2012 13:47:41 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	LKML <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [WARNING] lockdep and kmemcheck_alloc_shadow

Testing 3.2.18-rc1 I hit the following:

WARNING: at /work/autotest/nobackup/linux-test.git/kernel/lockdep.c:2739 lockdep_trace_alloc+0xee/0xf0()
Hardware name:         
Pid: 0, comm: swapper/0 Not tainted 3.2.18-rc1-test+ #1
Call Trace:^M
 [<ffffffff81066175>] warn_slowpath_common+0x75/0xb0
 [<ffffffff81066285>] warn_slowpath_null+0x15/0x20
 [<ffffffff81098aee>] lockdep_trace_alloc+0xee/0xf0
 [<ffffffff810d8adc>] __alloc_pages_nodemask+0x8c/0x7e0
 [<ffffffff81098537>] ? trace_hardirqs_off_caller+0xb7/0x120
 [<ffffffff8143467d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff81098537>] ? trace_hardirqs_off_caller+0xb7/0x120
 [<ffffffff8143467d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff81098537>] ? trace_hardirqs_off_caller+0xb7/0x120
 [<ffffffff8143467d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff81c8d567>] ? retint_restore_args+0x6/0x13
 [<ffffffff81113c9b>] kmemcheck_alloc_shadow+0x4b/0xf0
 [<ffffffff8111016f>] new_slab+0x26f/0x370
 [<ffffffff81c70677>] __slab_alloc+0x2ee/0x421
 [<ffffffff8143467d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff8110997e>] ? do_set_mempolicy+0x4e/0x210^M
 [<ffffffff81c8d567>] ? retint_restore_args+0x6/0x13
 [<ffffffff8110997e>] ? do_set_mempolicy+0x4e/0x210
 [<ffffffff8111122d>] kmem_cache_alloc+0x12d/0x140
 [<ffffffff8110997e>] do_set_mempolicy+0x4e/0x210
 [<ffffffff822e945e>] numa_policy_init+0x11f/0x13f
 [<ffffffff822c7aae>] start_kernel+0x2d0/0x36e
 [<ffffffff822c72e1>] x86_64_start_reservations+0xcc/0xd0
 [<ffffffff822c7140>] ? early_idt_handlers+0x140/0x140
 [<ffffffff822c73e7>] x86_64_start_kernel+0x102/0x111
---[ end trace 4eaa2a86a8e2da22 ]---


Attached config.

-- Steve



View attachment "config-bad" of type "text/x-mpsub" (95698 bytes)