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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-mm@kvack.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	John Hubbard <jhubbard@nvidia.com>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	William Kucharski <william.kucharski@oracle.com>,
	Mike Rapoport <rppt@linux.ibm.com>
Subject: [PATCH v2 0/6] Improvements for dump_page()
Date: Thu,  9 Jul 2020 21:21:11 +0100
Message-ID: <20200709202117.7216-1-willy@infradead.org> (raw)

Thanks to everyone for your feedback on v1.  I haven't added any acks
from v1 because most of the patches have changed substantially from v1.

Here's a sample dump of a pagecache tail page with all of the patches applied:

page:000000006d1c49ca refcount:6 mapcount:0 mapping:00000000136b8d90 index:0x109 pfn:0x6c645
head:000000008bd38076 order:2 compound_mapcount:0 compound_pincount:0
aops:xfs_address_space_operations ino:800042 dentry name:"fd"
flags: 0x4000000000012014(uptodate|lru|private|head)
raw: 4000000000000000 ffffd46ac1b19101 ffffffff00000202 dead000000000004
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
head: 4000000000012014 ffffd46ac1b1bbc8 ffffd46ac1b1bc08 ffff91976f659560
head: 0000000000000108 ffff919773220680 00000006ffffffff 0000000000000000
page dumped because: testing

Matthew Wilcox (Oracle) (6):
  mm: Handle page->mapping better in dump_page
  mm: Dump compound page information on a second line
  mm: Print head flags in dump_page
  mm: Switch dump_page to get_kernel_nofault
  mm: Print the inode number in dump_page
  mm: Print hashed address of struct page

 mm/debug.c | 75 +++++++++++++++++++++++++-----------------------------
 1 file changed, 35 insertions(+), 40 deletions(-)

-- 
2.27.0



             reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-09 20:21 Matthew Wilcox (Oracle) [this message]
2020-07-09 20:21 ` [PATCH v2 1/6] mm: Handle page->mapping better in dump_page Matthew Wilcox (Oracle)
2020-07-11  1:30   ` John Hubbard
2020-07-11  1:32     ` John Hubbard
2020-07-14 11:06   ` Vlastimil Babka
2020-07-09 20:21 ` [PATCH v2 2/6] mm: Dump compound page information on a second line Matthew Wilcox (Oracle)
2020-07-11  1:35   ` John Hubbard
2020-07-14 12:03   ` Vlastimil Babka
2020-08-04 15:37   ` Qian Cai
2020-08-04 16:14     ` Matthew Wilcox
2020-08-04 18:39       ` [PATCH] mm, dump_page: do not crash with bad compound_page() John Hubbard
2020-08-04 18:48         ` Matthew Wilcox
2020-08-04 19:17           ` John Hubbard
2020-08-04 19:42             ` Matthew Wilcox
2020-07-09 20:21 ` [PATCH v2 3/6] mm: Print head flags in dump_page Matthew Wilcox (Oracle)
2020-07-11  1:40   ` John Hubbard
2020-07-14 12:06   ` Vlastimil Babka
2020-07-09 20:21 ` [PATCH v2 4/6] mm: Switch dump_page to get_kernel_nofault Matthew Wilcox (Oracle)
2020-07-14 12:11   ` Vlastimil Babka
2020-07-09 20:21 ` [PATCH v2 5/6] mm: Print the inode number in dump_page Matthew Wilcox (Oracle)
2020-07-11  2:04   ` John Hubbard
2020-07-14 12:18   ` Vlastimil Babka
2020-07-09 20:21 ` [PATCH v2 6/6] mm: Print hashed address of struct page Matthew Wilcox (Oracle)
2020-07-11  1:48   ` John Hubbard
2020-07-09 20:54 ` [PATCH v2 0/6] Improvements for dump_page() Mike Rapoport
2020-07-09 20:54 ` William Kucharski

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