On Fri, 03 Apr 2015 20:18:18 +0300 Konstantin Khlebnikov <khlebni...@yandex-team.ru> wrote:
> 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 Is that why we print these out? Just to identify the fs type? There's always vma->vm_file->f_inode->i_sb->s_magic ;) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
