From: Fengguang Wu <fengguang.wu@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
xen-devel@lists.xenproject.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>
Subject: [PATCH] kobject: show debug info on delayed kobject release
Date: Wed, 9 Oct 2013 09:26:21 +0800 [thread overview]
Message-ID: <20131009012621.GA7126@localhost> (raw)
In-Reply-To: <20131009011833.GA14579@redhat.com>
Useful for locating buggy drivers on kernel oops.
It may add dozens of new lines to boot dmesg. DEBUG_KOBJECT_RELEASE is
hopefully only enabled in debug kernels (like maybe the Fedora rawhide
one, or at developers), so being a bit more verbose is likely ok.
CC: Russell King - ARM Linux <linux@arm.linux.org.uk>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
lib/kobject.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/kobject.c b/lib/kobject.c
index 669bf19..084f7b1 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -592,7 +592,7 @@ static void kobject_release(struct kref *kref)
{
struct kobject *kobj = container_of(kref, struct kobject, kref);
#ifdef CONFIG_DEBUG_KOBJECT_RELEASE
- pr_debug("kobject: '%s' (%p): %s, parent %p (delayed)\n",
+ pr_info("kobject: '%s' (%p): %s, parent %p (delayed)\n",
kobject_name(kobj), kobj, __func__, kobj->parent);
INIT_DELAYED_WORK(&kobj->release, kobject_delayed_cleanup);
schedule_delayed_work(&kobj->release, HZ);
--
1.7.10.4
next prev parent reply other threads:[~2013-10-09 1:26 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-06 8:23 [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Fengguang Wu
2013-10-06 17:26 ` Linus Torvalds
2013-10-07 2:11 ` Fengguang Wu
2013-10-07 5:10 ` Fengguang Wu
2013-10-07 8:12 ` Linus Torvalds
[not found] ` <20131007083505.GA22585@localhost>
2013-10-07 22:14 ` Linus Torvalds
2013-10-07 22:29 ` Russell King - ARM Linux
2013-10-07 23:33 ` Russell King - ARM Linux
2013-10-07 23:47 ` Linus Torvalds
2013-10-08 2:09 ` Fengguang Wu
2013-10-08 2:14 ` Fengguang Wu
2013-10-08 2:36 ` Fengguang Wu
2013-10-08 3:07 ` Linus Torvalds
2013-10-08 2:51 ` Linus Torvalds
2013-10-08 3:11 ` Fengguang Wu
2013-10-08 3:29 ` Linus Torvalds
2013-10-08 3:35 ` Fengguang Wu
2013-10-08 4:35 ` [DRM_CURRUS_QEMU/timer] WARNING: CPU: 0 PID: 1 at debug_print_object() Fengguang Wu
2013-10-08 12:17 ` [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Fengguang Wu
2013-10-08 22:14 ` Russell King - ARM Linux
2013-10-08 22:48 ` Greg Kroah-Hartman
2013-10-09 0:45 ` Linus Torvalds
2013-10-09 1:18 ` Dave Jones
2013-10-09 1:26 ` Fengguang Wu [this message]
2013-10-09 14:47 ` [PATCH] kobject: show debug info on delayed kobject release Russell King - ARM Linux
2013-10-09 14:12 ` [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Josh Boyer
2013-10-09 0:46 ` Fengguang Wu
2013-10-08 8:06 ` Russell King - ARM Linux
2013-10-10 2:23 ` Dave Airlie
2013-10-10 2:38 ` Linus Torvalds
2013-10-10 9:19 ` Russell King - ARM Linux
2013-10-10 10:53 ` Russell King - ARM Linux
2013-10-11 3:55 ` Dave Airlie
2013-10-11 4:28 ` Dave Airlie
2013-10-11 5:14 ` Fengguang Wu
2013-10-23 11:20 ` Xiong Zhou
2013-10-08 2:43 ` Linus Torvalds
2013-10-08 7:58 ` Ingo Molnar
2013-10-08 8:20 ` Fengguang Wu
2013-10-08 8:26 ` Ingo Molnar
2013-10-08 9:34 ` Ingo Molnar
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