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From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
	mingo@kernel.org, jiangshanlai@gmail.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
	iamjoonsoo.kim@lge.com, andrii@kernel.org,
	"Paul E. McKenney" <paulmck@kernel.org>,
	linux-mm@kvack.org
Subject: [PATCH v3 sl-b 4/6] mm: Make mem_obj_dump() vmalloc() dumps include start and length
Date: Thu, 10 Dec 2020 17:20:01 -0800	[thread overview]
Message-ID: <20201211012003.16473-4-paulmck@kernel.org> (raw)
In-Reply-To: <20201211011907.GA16110@paulmck-ThinkPad-P72>

From: "Paul E. McKenney" <paulmck@kernel.org>

This commit adds the starting address and number of pages to the vmalloc()
information dumped by way of vmalloc_dump_obj().

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <linux-mm@kvack.org>
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 mm/vmalloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7421719..77b1100 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3439,7 +3439,8 @@ bool vmalloc_dump_obj(void *object)
 	vm = find_vm_area(objp);
 	if (!vm)
 		return false;
-	pr_cont(" vmalloc allocated at %pS\n", vm->caller);
+	pr_cont(" %u-page vmalloc region starting at %#lx allocated at %pS\n",
+		vm->nr_pages, (unsigned long)vm->addr, vm->caller);
 	return true;
 }
 
-- 
2.9.5


  parent reply	other threads:[~2020-12-11  1:22 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-05  0:40 [PATCH RFC sl-b] Export return addresses for better diagnostics Paul E. McKenney
2020-12-05  0:40 ` [PATCH sl-b 1/6] mm: Add kmem_last_alloc() to return last allocation for memory block paulmck
2020-12-07  9:02   ` Joonsoo Kim
2020-12-07 17:25     ` Paul E. McKenney
2020-12-08  8:57       ` Joonsoo Kim
2020-12-08 15:17         ` Paul E. McKenney
2020-12-05  0:40 ` [PATCH sl-b 2/6] mm: Add kmem_last_alloc_errstring() to provide more kmem_last_alloc() info paulmck
2020-12-05  0:40 ` [PATCH sl-b 3/6] rcu: Make call_rcu() print allocation address of double-freed callback paulmck
2020-12-05  0:40 ` [PATCH sl-b 4/6] mm: Create kmem_last_alloc_stack() to provide stack trace in slub paulmck
2020-12-05  0:40 ` [PATCH sl-b 5/6] percpu_ref: Print allocator upon reference-count underflow paulmck
2020-12-05  0:40 ` [PATCH sl-b 6/6] percpu_ref: Print stack trace " paulmck
2020-12-09  1:11 ` [PATCH RFC v2 sl-b] Export return addresses etc. for better diagnostics Paul E. McKenney
2020-12-09  1:12   ` [PATCH v2 sl-b 1/5] mm: Add mem_dump_obj() to print source of memory block paulmck
2020-12-09  5:36     ` kernel test robot
2020-12-09 16:51       ` Paul E. McKenney
2020-12-09  8:17     ` Christoph Hellwig
2020-12-09 14:57       ` Paul E. McKenney
2020-12-09 17:53         ` Christoph Hellwig
2020-12-09 17:59           ` Paul E. McKenney
2020-12-09 17:28     ` Vlastimil Babka
2020-12-09 23:04       ` Paul E. McKenney
2020-12-10 10:48         ` Vlastimil Babka
2020-12-10 19:56           ` Paul E. McKenney
2020-12-10 12:04     ` Joonsoo Kim
2020-12-10 23:41       ` Paul E. McKenney
2020-12-09  1:13   ` [PATCH v2 sl-b 2/5] mm: Make mem_dump_obj() handle NULL and zero-sized pointers paulmck
2020-12-09 17:48     ` Vlastimil Babka
2020-12-10  3:25       ` Paul E. McKenney
2020-12-09  1:13   ` [PATCH v2 sl-b 3/5] mm: Make mem_dump_obj() handle vmalloc() memory paulmck
2020-12-09 17:51     ` Vlastimil Babka
2020-12-09 19:39       ` Uladzislau Rezki
2020-12-09 23:23       ` Paul E. McKenney
2020-12-10 10:49         ` Vlastimil Babka
2020-12-09 19:36     ` Uladzislau Rezki
2020-12-09 19:42       ` Paul E. McKenney
2020-12-09 20:04         ` Uladzislau Rezki
2020-12-09  1:13   ` [PATCH v2 sl-b 4/5] rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback paulmck
2020-12-09  1:13   ` [PATCH v2 sl-b 5/5] percpu_ref: Dump mem_dump_obj() info upon reference-count underflow paulmck
2020-12-11  1:19   ` [PATCH RFC v2 sl-b] Export return addresses etc. for better diagnostics Paul E. McKenney
2020-12-11  1:19     ` [PATCH v3 sl-b 1/6] mm: Add mem_dump_obj() to print source of memory block paulmck
2020-12-11  2:22       ` Joonsoo Kim
2020-12-11  3:33         ` Paul E. McKenney
2020-12-11  3:42           ` Paul E. McKenney
2020-12-11  6:58             ` Joonsoo Kim
2020-12-11 16:59               ` Paul E. McKenney
2020-12-11  6:54           ` Joonsoo Kim
2020-12-11  1:19     ` [PATCH v3 sl-b 2/6] mm: Make mem_dump_obj() handle NULL and zero-sized pointers paulmck
2020-12-11  1:20     ` [PATCH v3 sl-b 3/6] mm: Make mem_dump_obj() handle vmalloc() memory paulmck
2020-12-11  1:20     ` paulmck [this message]
2020-12-11  1:20     ` [PATCH v3 sl-b 5/6] rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback paulmck
2020-12-11  1:20     ` [PATCH v3 sl-b 6/6] percpu_ref: Dump mem_dump_obj() info upon reference-count underflow paulmck

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