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From: Jane Chu <jane.chu@oracle.com>
To: linmiaohe@huawei.com, nao.horiguchi@gmail.com,
	akpm@linux-foundation.org, osalvador@suse.de, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/5] mm/madvise: Add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON)
Date: Fri, 10 May 2024 00:25:59 -0600	[thread overview]
Message-ID: <20240510062602.901510-3-jane.chu@oracle.com> (raw)
In-Reply-To: <20240510062602.901510-1-jane.chu@oracle.com>

The soft hwpoison injector via madvise(MADV_HWPOISON) operates in
a synchrous way in a sense, the injector is also a process under
test, and should it have the poisoned page mapped in its address
space, it should legitimately get killed as much as in a real UE
situation.

Signed-off-by: Jane Chu <jane.chu@oracle.com>
---
 mm/madvise.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index c8ba3f3eb54d..d8a01d7b2860 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1147,7 +1147,7 @@ static int madvise_inject_error(int behavior,
 		} else {
 			pr_info("Injecting memory failure for pfn %#lx at process virtual address %#lx\n",
 				 pfn, start);
-			ret = memory_failure(pfn, MF_COUNT_INCREASED | MF_SW_SIMULATED);
+			ret = memory_failure(pfn, MF_ACTION_REQUIRED | MF_COUNT_INCREASED | MF_SW_SIMULATED);
 			if (ret == -EOPNOTSUPP)
 				ret = 0;
 		}
-- 
2.39.3



  parent reply	other threads:[~2024-05-10  6:26 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-10  6:25 [PATCH v2 0/5] Enhance soft hwpoison handling and injection Jane Chu
2024-05-10  6:25 ` [PATCH v2 1/5] mm/memory-failure: try to send SIGBUS even if unmap failed Jane Chu
2024-05-11  7:01   ` Miaohe Lin
2024-05-10  6:25 ` Jane Chu [this message]
2024-05-15 11:44   ` [PATCH v2 2/5] mm/madvise: Add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON) Oscar Salvador
2024-05-10  6:26 ` [PATCH v2 3/5] mm/memory-failure: improve memory failure action_result messages Jane Chu
2024-05-16  9:46   ` Oscar Salvador
2024-05-20 18:30     ` Jane Chu
2024-05-10  6:26 ` [PATCH v2 4/5] mm/memory-failure: move hwpoison_filter() higher up Jane Chu
2024-05-11  8:29   ` Miaohe Lin
2024-05-20 18:15     ` Jane Chu
2024-05-16 10:11   ` Oscar Salvador
2024-05-10  6:26 ` [PATCH v2 5/5] mm/memory-failure: send SIGBUS in the event of thp split fail Jane Chu
2024-05-16 12:47   ` Oscar Salvador
2024-05-20 18:48     ` Jane Chu

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