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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Pedro Falcato , Hugh Dickins , Baolin Wang , Peter Xu , Johannes Weiner , Yosry Ahmed , Chengming Zhou Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, Breno Leitao X-Mailer: b4 0.16-dev-f8e9d X-Developer-Signature: v=1; a=openpgp-sha256; l=976; i=leitao@debian.org; h=from:subject:message-id; bh=xkXi9fgJ7KrcCeZFprZs/+gSFahKcbk7Esh+oPKGx4o=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBqefvpln63mQ6+J5NEbzNRv+b2ue7YHSg/NdBrc ElVPwjOUWqJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCann76QAKCRA1o5Of/Hh3 bYaTEACOQAJ6NERN3M8O1i9zp/4Q3IVATkjnbEjHEtTQBrzn7eMbezJsCH+ViJmjDytGWrbddMU jsB4bupJbIV2TeXU3k1cKkVFXVdlwVc8Htn4WVKMI++tbPtif390U6S9bJTkO3b6yYGkixpxHkK AqYG5nTKaZnXj6yg5iKow670eLywodVVwWr1TRz6Z/WP7ph/yE0wzuu+POvx4eHkngNy2M8EZBP aNDjQg3S+JY5BaY8VMfO9t5yHfleT2+ElNHx+4U0Pn872VxZCCZIwd2ygZXQYzVVJ6xSNvTxGU5 O5eWjBE6SUmpVFxJtV4y02vbVAWPQfj0C5pboZcb4/nOhUrT9Q08czl8mVypCJto7Mqv0Bw6bb6 /5FBDlXf3C5fy2DEfzBBfTZ8q7Jsv4Jy/yQXKdqzoE30ox6Na674oKSsG43HiG/j/qOJJ4UatVn VY9aXRdDcXkkzeFxBunYw+XiBZzKsKx2zIKzSNMnvKGjauWwAWig4MUID3zjNrTXNaiFe3LogMB c8XR7gfoC5cb+yl2k7aUmW0WV3bzGWrgwsNKyYYgf0CwSQ8UVRXc0U4H1oc4/SuroYqf0OP4kQO mK+9LVPkubcYQHhXWvUXs7Uh6TtQwLSM2RD3e4JqKfA/CWc2bH5+AuZ+tWnBHhRXDOlIrHFqFJP 2IDb/9QEHNO80eg== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-Debian-User: leitao X-Stat-Signature: xjjmhmui6s8k9bunqf9pjwcx7ypdwy89 X-Rspamd-Queue-Id: 3D900120007 X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1786379263-593730 X-HE-Meta: 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 /YYhDMvm uaJgdZNBgkEdeE8igIzARVyvzt2t1XeeVyQ6+pNGLXmca5aP3ZM/z8Y9dBc61M0Adk5Yuwghmr/Cm7ZInV3u4LS4MKLKKaphs0pmokUlQ+9KLF6OxKZuw0oEE19egzu8/25ResMp8WIVEz9zUoAiO3V9gs4OpKmyh9uA/PpS4KBswUHv3bxMix/nyr96qQrEmvawcuOuqdbCTR54ewwEg8iVhhqpYb1OVL2wRw8SQZRqB2bzPJsNljBjYbzUdQtMpPh1uA7bH+snCojpm6Kzng+jC6o5jaEyfhmZzT4QS62J2vAG2YiUXrtuOKjvlD7oU0RTVy0wCDMH4hNEXCKY4eJL50paOAx11mcwKdeWtKQIPpTCyEWpqIrnVrudyB6NN2h/G Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: A corrupt page table hands the same bogus entry to get_swap_device() on every access to the mapping, and every rejection is logged. One machine logged 6185620 copies of the same line in a few hours. Rate limit both prints. Signed-off-by: Breno Leitao --- mm/swapfile.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/swapfile.c b/mm/swapfile.c index 4d4e3e3059f6b..9ab11dc24e4f1 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1899,11 +1899,11 @@ struct swap_info_struct *get_swap_device(swp_entry_t entry) return si; bad_nofile: - pr_err("%s: %s%08lx\n", __func__, Bad_file, entry.val); + pr_err_ratelimited("%s: %s%08lx\n", __func__, Bad_file, entry.val); out: return NULL; put_out: - pr_err("%s: %s%08lx\n", __func__, Bad_offset, entry.val); + pr_err_ratelimited("%s: %s%08lx\n", __func__, Bad_offset, entry.val); percpu_ref_put(&si->users); return NULL; } -- 2.53.0-Meta