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| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2015-04-16 02:15:08 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 02:35:20 +0300 |
| commit | 2682582a6ea118d974c33da64923ae8c687fdd0b (patch) | |
| tree | 2c4b3ee55dbd18c1eb046871df008e9333df7308 /include | |
| parent | 923936157b158f36bd6a3d86496dce82b1a957de (diff) | |
| download | linux-2682582a6ea118d974c33da64923ae8c687fdd0b.tar.xz | |
mm/memory: also print a_ops->readpage in print_bad_pte()
A lot of filesystems use generic_file_mmap() and filemap_fault(),
f_op->mmap and vm_ops->fault aren't enough to identify filesystem.
This prints file name, vm_ops->fault, f_op->mmap and a_ops->readpage
(which is almost always implemented and filesystem-specific).
Example:
[ 23.676410] BUG: Bad page map in process sh pte:1b7e6025 pmd:19bbd067
[ 23.676887] page:ffffea00006df980 count:4 mapcount:1 mapping:ffff8800196426c0 index:0x97
[ 23.677481] flags: 0x10000000000000c(referenced|uptodate)
[ 23.677896] page dumped because: bad pte
[ 23.678205] addr:00007f52fcb17000 vm_flags:00000075 anon_vma: (null) mapping:ffff8800196426c0 index:97
[ 23.678922] file:libc-2.19.so fault:filemap_fault mmap:generic_file_readonly_mmap readpage:v9fs_vfs_readpage
[akpm@linux-foundation.org: use pr_alert, per Kirill]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions