Subject: [Bug 204371] BUG kmalloc-4k (Tainted: G W ): Object padding overwritten

From: [email-masked]
Date: Fri, 16 Aug 2019 08:22:31 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=204371

--- Comment #32 from Christophe Leroy ([email-masked]) ---
I think first thing is to fix test_add_free_space_entry() :
- replace the map = kzalloc(...) by map = (void *)get_zeroed_page(...) like in
other places.
- replace the kfree(map); by free_page((unsigned long)map);

Then see if the WARNING on kfree() in  btrfs_free_dummy_fs_info() is still
there.

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