The patch titled
Subject: mm: make mem_obj_dump() vmalloc() dumps include start and length
has been added to the -mm tree. Its filename is
mm-make-mem_obj_dump-vmalloc-dumps-include-start-and-length.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-make-mem_obj_dump-vmalloc-dumps-include-start-and-length.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-make-mem_obj_dump-vmalloc-dumps-include-start-and-length.patch
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------------------------------------------------------
From: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Subject: mm: make mem_obj_dump() vmalloc() dumps include start and length
This commit adds the starting address and number of pages to the vmalloc()
information dumped by way of vmalloc_dump_obj().
Link: https://lkml.kernel.org/r/20210106011750.13709-4-paulmck@xxxxxxxxxx
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
Suggested-by: Vlastimil Babka <vbabka@xxxxxxx>
Reported-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Ming Lei <ming.lei@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmalloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/vmalloc.c~mm-make-mem_obj_dump-vmalloc-dumps-include-start-and-length
+++ a/mm/vmalloc.c
@@ -3456,7 +3456,8 @@ 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;
}
_
Patches currently in -mm which might be from paulmck@xxxxxxxxxx are
mm-add-mem_dump_obj-to-print-source-of-memory-block.patch
mm-make-mem_dump_obj-handle-null-and-zero-sized-pointers.patch
mm-make-mem_dump_obj-handle-vmalloc-memory.patch
mm-make-mem_obj_dump-vmalloc-dumps-include-start-and-length.patch
rcu-make-call_rcu-print-mem_dump_obj-info-for-double-freed-callback.patch
percpu_ref-dump-mem_dump_obj-info-upon-reference-count-underflow.patch
