From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755927Ab1JTOto (ORCPT ); Thu, 20 Oct 2011 10:49:44 -0400 Received: from krak.alatek.krakow.pl ([46.170.108.42]:1443 "EHLO krak.alatek.krakow.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752950Ab1JTOtn convert rfc822-to-8bit (ORCPT ); Thu, 20 Oct 2011 10:49:43 -0400 From: Pawel Sikora To: linux-kernel@vger.kernel.org Cc: Linus Torvalds , Randy Dunlap , David Howells , Al Viro , Jeff Layton Subject: WARNING: at fs/dcache.c:2549 prepend_path+0x164/0x170() [Root dentry has weird name <>] Date: Thu, 20 Oct 2011 16:49:38 +0200 Message-ID: <1633484.nypxIFiqdQ@pawels> User-Agent: KMail/4.7.2 (Linux/3.0.6-2; KDE/4.7.2; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, during the 3.0.6 kernel stressing on dual-opteron machine i've noticed warnings in dmesg. bugzilla.kernel.org is down currently, so i'm CCing last fs/dcache.c commiters. i hope that this shortlog will help you. BR, Paweł. (...) Oct 14 15:52:36 odra kernel: [ 18.710510] igb: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Oct 14 15:52:36 odra kernel: [ 18.713039] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Oct 14 15:52:39 odra kernel: [ 21.885578] FS-Cache: Loaded Oct 14 15:52:39 odra kernel: [ 21.898297] Registering the id_resolver key type Oct 14 15:52:39 odra kernel: [ 21.898325] FS-Cache: Netfs 'nfs' registered for caching Oct 14 15:52:59 odra kernel: [ 26.110041] eth0: no IPv6 routers present Oct 14 15:53:02 odra kernel: [ 29.363344] eth1: no IPv6 routers present Oct 15 11:06:50 odra kernel: [69257.064455] process `sysctl' is using deprecated sysctl (syscall) net.ipv6.neigh.default.retrans_time; Use net.ipv6.neigh.default.retrans_time_ms instead. Oct 18 19:40:36 odra kernel: [359283.045721] ------------[ cut here ]------------ Oct 18 19:40:36 odra kernel: [359283.045731] WARNING: at fs/dcache.c:2549 prepend_path+0x164/0x170() Oct 18 19:40:36 odra kernel: [359283.045734] Hardware name: H8DGU Oct 18 19:40:36 odra kernel: [359283.045736] Root dentry has weird name <> Oct 18 19:40:36 odra kernel: [359283.045737] Modules linked in: nfs fscache binfmt_misc nfsd lockd exportfs nfs_acl auth_rpcgss sunrpc ipmi_si ipmi_devintf ipmi_msghandler sch_sfq iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter xt_TCPMSS xt_tcpudp iptable_mangle ip_tables ip6table_filter ip6_tables x_tables ext4 jbd2 crc16 raid0 dm_mod autofs4 dummy usbhid hid ide_cd_mod cdrom ata_generic pata_acpi ohci_hcd pata_atiixp ide_pci_generic ssb pcmcia sp5100_tco pcmcia_core ehci_hcd amd64_edac_mod pcspkr edac_core evdev mmc_core atiixp igb i2c_piix4 i2c_core ide_core edac_mce_amd processor ghes usbcore psmouse serio_raw button k10temp hed hwmon dca sg sd_mod crc_t10dif raid1 md_mod ext3 jbd mbcache ahci libahci libata scsi_mod [last unloaded: scsi_wait_scan] Oct 18 19:40:36 odra kernel: [359283.045799] Pid: 8349, comm: pidof Not tainted 3.0.6-dirty #2 Oct 18 19:40:36 odra kernel: [359283.045802] Call Trace: Oct 18 19:40:36 odra kernel: [359283.045812] [] warn_slowpath_common+0x7a/0xb0 Oct 18 19:40:36 odra kernel: [359283.045817] [] warn_slowpath_fmt+0x41/0x50 Oct 18 19:40:36 odra kernel: [359283.045822] [] ? __slab_free+0xfc/0x105 Oct 18 19:40:36 odra kernel: [359283.045825] [] prepend_path+0x164/0x170 Oct 18 19:40:36 odra kernel: [359283.045829] [] path_with_deleted+0x57/0xa0 Oct 18 19:40:36 odra kernel: [359283.045831] [] d_path+0xb1/0xe0 Oct 18 19:40:36 odra kernel: [359283.045837] [] proc_pid_readlink+0x8b/0xf0 Oct 18 19:40:36 odra kernel: [359283.045841] [] sys_readlinkat+0xa6/0xb0 Oct 18 19:40:36 odra kernel: [359283.045844] [] sys_readlink+0x16/0x20 Oct 18 19:40:36 odra kernel: [359283.045849] [] system_call_fastpath+0x16/0x1b Oct 18 19:40:36 odra kernel: [359283.045851] ---[ end trace b5522e2b9acb171d ]--- (...)