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Message-Id: <1175786199.13125.3.camel@dyn9047017100.beaverton.ibm.com> Date: Thu, 05 Apr 2007 08:16:39 -0700 From: Badari Pulavarty <pbadari@...il.com> To: Christoph Lameter <clameter@....com> Cc: Andrew Morton <akpm@...ux-foundation.org>, lkml <linux-kernel@...r.kernel.org> Subject: Re: 2.6.21-rc5-mm4 (SLUB) On Wed, 2007-04-04 at 21:29 -0700, Christoph Lameter wrote: > Here is a patch that adds validation (only for cpuslabs and partial > slabs but thats where the action is). Apply this patch > and then do > > echo 1 >/sys/slab/<cache-to-check>/validate > > I suggest to boot with full debugging and then run this on the ACPI slabs. Did this and didn't trigger any problems. (Just to be clear, booted with "slub_debug" with all the patches applied). --- Validating slabcache 'Acpi-Namespace' --- Checked 0 slabs in 'Acpi-Namespace' --- Validating slabcache 'Acpi-Operand' --- Checked 5 slabs in 'Acpi-Operand' --- Validating slabcache 'Acpi-Parse' --- Checked 0 slabs in 'Acpi-Parse' --- Validating slabcache 'Acpi-ParseExt' --- Checked 0 slabs in 'Acpi-ParseExt' --- Validating slabcache 'Acpi-State' --- Checked 0 slabs in 'Acpi-State' --- Validating slabcache 'Acpi-Namespace' --- Checked 0 slabs in 'Acpi-Namespace' --- Validating slabcache 'Acpi-Operand' --- Checked 5 slabs in 'Acpi-Operand' --- Validating slabcache 'Acpi-Parse' --- Checked 0 slabs in 'Acpi-Parse' --- Validating slabcache 'Acpi-ParseExt' --- Checked 0 slabs in 'Acpi-ParseExt' --- Validating slabcache 'Acpi-State' --- Checked 0 slabs in 'Acpi-State' --- Validating slabcache 'RAW' --- Checked 1 slabs in 'RAW' --- Validating slabcache 'RAWv6' --- Checked 1 slabs in 'RAWv6' --- Validating slabcache 'TCP' --- Checked 3 slabs in 'TCP' --- Validating slabcache 'TCPv6' --- Checked 4 slabs in 'TCPv6' --- Validating slabcache 'UDP-Lite' --- Checked 0 slabs in 'UDP-Lite' --- Validating slabcache 'UDP' --- Checked 2 slabs in 'UDP' --- Validating slabcache 'UDPLITEv6' --- Checked 0 slabs in 'UDPLITEv6' --- Validating slabcache 'UDPv6' --- Checked 0 slabs in 'UDPv6' --- Validating slabcache 'UNIX' --- Checked 4 slabs in 'UNIX' --- Validating slabcache 'anon_vma' --- Checked 12 slabs in 'anon_vma' --- Validating slabcache 'arp_cache' --- Checked 2 slabs in 'arp_cache' --- Validating slabcache 'bdev_cache' --- Checked 3 slabs in 'bdev_cache' --- Validating slabcache 'bio' --- Checked 0 slabs in 'bio' --- Validating slabcache 'biovec-1' --- Checked 1 slabs in 'biovec-1' --- Validating slabcache 'biovec-128' --- Checked 1 slabs in 'biovec-128' --- Validating slabcache 'biovec-16' --- Checked 1 slabs in 'biovec-16' --- Validating slabcache 'biovec-256' --- Checked 1 slabs in 'biovec-256' --- Validating slabcache 'biovec-4' --- Checked 1 slabs in 'biovec-4' --- Validating slabcache 'biovec-64' --- Checked 1 slabs in 'biovec-64' --- Validating slabcache 'blkdev_ioc' --- Checked 4 slabs in 'blkdev_ioc' --- Validating slabcache 'blkdev_queue' --- Checked 1 slabs in 'blkdev_queue' --- Validating slabcache 'blkdev_requests' --- Checked 2 slabs in 'blkdev_requests' --- Validating slabcache 'buffer_head' --- Checked 4 slabs in 'buffer_head' --- Validating slabcache 'cfq_ioc_pool' --- Checked 4 slabs in 'cfq_ioc_pool' --- Validating slabcache 'cfq_pool' --- Checked 4 slabs in 'cfq_pool' --- Validating slabcache 'configfs_dir_cache' --- Checked 0 slabs in 'configfs_dir_cache' --- Validating slabcache 'dentry_cache' --- Checked 5 slabs in 'dentry_cache' --- Validating slabcache 'dm_io' --- Checked 0 slabs in 'dm_io' --- Validating slabcache 'dm_tio' --- Checked 0 slabs in 'dm_tio' --- Validating slabcache 'dnotify_cache' --- Checked 1 slabs in 'dnotify_cache' --- Validating slabcache 'dquot' --- Checked 0 slabs in 'dquot' --- Validating slabcache 'eventpoll_epi' --- Checked 1 slabs in 'eventpoll_epi' --- Validating slabcache 'eventpoll_pwq' --- Checked 1 slabs in 'eventpoll_pwq' --- Validating slabcache 'ext2_inode_cache' --- Checked 0 slabs in 'ext2_inode_cache' --- Validating slabcache 'ext2_xattr' --- Checked 0 slabs in 'ext2_xattr' --- Validating slabcache 'ext3_inode_cache' --- Checked 0 slabs in 'ext3_inode_cache' --- Validating slabcache 'ext3_xattr' --- Checked 0 slabs in 'ext3_xattr' --- Validating slabcache 'fasync_cache' --- Checked 0 slabs in 'fasync_cache' --- Validating slabcache 'fib6_nodes' --- Checked 1 slabs in 'fib6_nodes' --- Validating slabcache 'file_lock_cache' --- Checked 2 slabs in 'file_lock_cache' --- Validating slabcache 'files_cache' --- Checked 10 slabs in 'files_cache' --- Validating slabcache 'filp' --- Checked 35 slabs in 'filp' --- Validating slabcache 'flow_cache' --- Checked 0 slabs in 'flow_cache' --- Validating slabcache 'fs_cache' --- Checked 5 slabs in 'fs_cache' --- Validating slabcache 'hugetlbfs_inode_cache' --- Checked 1 slabs in 'hugetlbfs_inode_cache' --- Validating slabcache 'idr_layer_cache' --- Checked 2 slabs in 'idr_layer_cache' --- Validating slabcache 'inet_peer_cache' --- Checked 0 slabs in 'inet_peer_cache' --- Validating slabcache 'inode_cache' --- Checked 8 slabs in 'inode_cache' --- Validating slabcache 'inotify_event_cache' --- Checked 0 slabs in 'inotify_event_cache' --- Validating slabcache 'inotify_watch_cache' --- Checked 1 slabs in 'inotify_watch_cache' --- Validating slabcache 'ip6_dst_cache' --- Checked 1 slabs in 'ip6_dst_cache' --- Validating slabcache 'ip_dst_cache' --- Checked 3 slabs in 'ip_dst_cache' --- Validating slabcache 'ip_fib_alias' --- Checked 3 slabs in 'ip_fib_alias' --- Validating slabcache 'ip_fib_hash' --- Checked 3 slabs in 'ip_fib_hash' --- Validating slabcache 'ip_mrt_cache' --- Checked 0 slabs in 'ip_mrt_cache' --- Validating slabcache 'isofs_inode_cache' --- Checked 0 slabs in 'isofs_inode_cache' --- Validating slabcache 'journal_handle' --- Checked 0 slabs in 'journal_handle' --- Validating slabcache 'journal_head' --- Checked 0 slabs in 'journal_head' --- Validating slabcache 'kiocb' --- Checked 0 slabs in 'kiocb' --- Validating slabcache 'kioctx' --- Checked 0 slabs in 'kioctx' --- Validating slabcache 'kmalloc-1024' --- Checked 7 slabs in 'kmalloc-1024' --- Validating slabcache 'kmalloc-128' --- Checked 9 slabs in 'kmalloc-128' --- Validating slabcache 'kmalloc-131072' --- Checked 0 slabs in 'kmalloc-131072' --- Validating slabcache 'kmalloc-16' --- Checked 7 slabs in 'kmalloc-16' --- Validating slabcache 'kmalloc-16384' --- Checked 2 slabs in 'kmalloc-16384' --- Validating slabcache 'kmalloc-192' --- Checked 4 slabs in 'kmalloc-192' --- Validating slabcache 'kmalloc-2048' --- Checked 17 slabs in 'kmalloc-2048' --- Validating slabcache 'kmalloc-256' --- Checked 5 slabs in 'kmalloc-256' --- Validating slabcache 'kmalloc-262144' --- Checked 0 slabs in 'kmalloc-262144' --- Validating slabcache 'kmalloc-32' --- Checked 7 slabs in 'kmalloc-32' --- Validating slabcache 'kmalloc-32768' --- Checked 2 slabs in 'kmalloc-32768' --- Validating slabcache 'kmalloc-4096' --- Checked 5 slabs in 'kmalloc-4096' --- Validating slabcache 'kmalloc-512' --- Checked 9 slabs in 'kmalloc-512' --- Validating slabcache 'kmalloc-64' --- Checked 9 slabs in 'kmalloc-64' --- Validating slabcache 'kmalloc-65536' --- Checked 1 slabs in 'kmalloc-65536' --- Validating slabcache 'kmalloc-8' --- Checked 6 slabs in 'kmalloc-8' --- Validating slabcache 'kmalloc-8192' --- Checked 3 slabs in 'kmalloc-8192' --- Validating slabcache 'kmalloc-96' --- Checked 7 slabs in 'kmalloc-96' --- Validating slabcache 'kmem_cache_node' --- Checked 6 slabs in 'kmem_cache_node' --- Validating slabcache 'minix_inode_cache' --- Checked 0 slabs in 'minix_inode_cache' --- Validating slabcache 'mm_struct' --- Checked 6 slabs in 'mm_struct' --- Validating slabcache 'mnt_cache' --- Checked 3 slabs in 'mnt_cache' --- Validating slabcache 'mqueue_inode_cache' --- Checked 1 slabs in 'mqueue_inode_cache' --- Validating slabcache 'names_cache' --- Checked 0 slabs in 'names_cache' --- Validating slabcache 'ndisc_cache' --- Checked 1 slabs in 'ndisc_cache' --- Validating slabcache 'nfs_direct_cache' --- Checked 0 slabs in 'nfs_direct_cache' --- Validating slabcache 'nfs_inode_cache' --- Checked 0 slabs in 'nfs_inode_cache' --- Validating slabcache 'nfs_page' --- Checked 0 slabs in 'nfs_page' --- Validating slabcache 'nfs_read_data' --- Checked 1 slabs in 'nfs_read_data' --- Validating slabcache 'nfs_write_data' --- Checked 0 slabs in 'nfs_write_data' --- Validating slabcache 'numa_policy' --- Checked 0 slabs in 'numa_policy' --- Validating slabcache 'pid' --- Checked 8 slabs in 'pid' --- Validating slabcache 'posix_timers_cache' --- Checked 0 slabs in 'posix_timers_cache' --- Validating slabcache 'proc_inode_cache' --- Checked 26 slabs in 'proc_inode_cache' --- Validating slabcache 'radix_tree_node' --- Checked 5 slabs in 'radix_tree_node' --- Validating slabcache 'reiser_inode_cache' --- Checked 5 slabs in 'reiser_inode_cache' --- Validating slabcache 'request_sock_TCP' --- Checked 0 slabs in 'request_sock_TCP' --- Validating slabcache 'request_sock_TCPv6' --- Checked 0 slabs in 'request_sock_TCPv6' --- Validating slabcache 'revoke_record' --- Checked 0 slabs in 'revoke_record' --- Validating slabcache 'revoke_table' --- Checked 0 slabs in 'revoke_table' --- Validating slabcache 'revokefs_inode_cache' --- Checked 1 slabs in 'revokefs_inode_cache' --- Validating slabcache 'rpc_buffers' --- Checked 1 slabs in 'rpc_buffers' --- Validating slabcache 'rpc_inode_cache' --- Checked 0 slabs in 'rpc_inode_cache' --- Validating slabcache 'rpc_tasks' --- Checked 1 slabs in 'rpc_tasks' --- Validating slabcache 'secpath_cache' --- Checked 0 slabs in 'secpath_cache' --- Validating slabcache 'shared_policy_node' --- Checked 0 slabs in 'shared_policy_node' --- Validating slabcache 'shmem_inode_cache' --- Checked 5 slabs in 'shmem_inode_cache' --- Validating slabcache 'sighand_cache' --- Checked 7 slabs in 'sighand_cache' --- Validating slabcache 'signal_cache' --- Checked 7 slabs in 'signal_cache' --- Validating slabcache 'sigqueue' --- Checked 0 slabs in 'sigqueue' --- Validating slabcache 'skbuff_fclone_cache' --- Checked 0 slabs in 'skbuff_fclone_cache' --- Validating slabcache 'skbuff_head_cache' --- Checked 16 slabs in 'skbuff_head_cache' --- Validating slabcache 'sock_inode_cache' --- Checked 5 slabs in 'sock_inode_cache' --- Validating slabcache 'sysfs_dir_cache' --- Checked 7 slabs in 'sysfs_dir_cache' --- Validating slabcache 'task_struct' --- Checked 12 slabs in 'task_struct' --- Validating slabcache 'tcp_bind_bucket' --- Checked 4 slabs in 'tcp_bind_bucket' --- Validating slabcache 'tw_sock_TCP' --- Checked 0 slabs in 'tw_sock_TCP' --- Validating slabcache 'tw_sock_TCPv6' --- Checked 0 slabs in 'tw_sock_TCPv6' --- Validating slabcache 'uid_cache' --- Checked 2 slabs in 'uid_cache' --- Validating slabcache 'utrace_cache' --- Checked 0 slabs in 'utrace_cache' --- Validating slabcache 'utrace_engine_cache' --- Checked 0 slabs in 'utrace_engine_cache' --- Validating slabcache 'vm_area_struct' --- Checked 28 slabs in 'vm_area_struct' --- Validating slabcache 'xfrm_dst_cache' --- Checked 0 slabs in 'xfrm_dst_cache' - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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