id summary reporter owner description type status component version resolution keywords cc guest host 10697 WARNING: at /build/buildd/linux-3.0.0/fs/dcache.c:1360 d_set_d_op+0xb1/0xc0() edab "I upgraded to the latest version of VirtualBox (4.18) ~ 2 days ago, I saw the following entry in my syslog. My VBox guest is Ubuntu 11.10 running on a Windows7 host. The hardware is a Compaq Presario CQ62 laptop with 8GB of RAM, AMD Athlon II Dual-Core P320 (Caspian) processor. The following events which I assume are Vox related. {{{ Jun 23 11:17:01 eddie-vb CRON[3576]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jun 23 11:45:02 eddie-vb kernel: [14326.695807] ------------[ cut here ]------------ Jun 23 11:45:02 eddie-vb kernel: [14326.695819] WARNING: at /build/buildd/linux-3.0.0/fs/dcache.c:1356 d_set_d_op+0x8e/0xc0() Jun 23 11:45:02 eddie-vb kernel: [14326.695822] Hardware name: VirtualBox Jun 23 11:45:02 eddie-vb kernel: [14326.695823] Modules linked in: vboxsf bnep des_generic rfcomm bluetooth md4 vboxvideo drm vesafb nls_utf8 xt_hl cifs ip6t_rt binfmt_misc snd_intel8x0 snd_ac97_codec nf_conntrack_ipv6 nf_defrag_ipv6 ac97_bus ipt_REJECT snd_pcm xt_multiport xt_limit snd_seq_midi xt_tcpudp xt_addrtype snd_rawmidi snd_seq_midi_event snd_seq xt_state ppdev snd_timer ip6table_filter ip6_tables snd_seq_device nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp snd nf_nat soundcore nf_conntrack_ipv4 nf_defrag_ipv4 joydev nf_conntrack_ftp nf_conntrack vboxguest snd_page_alloc parport_pc i2c_piix4 psmouse serio_raw iptable_filter lp parport ip_tables x_tables usbhid hid ahci libahci e1000 Jun 23 11:45:02 eddie-vb kernel: [14326.695874] Pid: 3889, comm: vim Not tainted 3.0.0-22-generic #36-Ubuntu Jun 23 11:45:02 eddie-vb kernel: [14326.695877] Call Trace: Jun 23 11:45:02 eddie-vb kernel: [14326.695883] [] warn_slowpath_common+0x7f/0xc0 Jun 23 11:45:02 eddie-vb kernel: [14326.695887] [] warn_slowpath_null+0x1a/0x20 Jun 23 11:45:02 eddie-vb kernel: [14326.695890] [] d_set_d_op+0x8e/0xc0 Jun 23 11:45:02 eddie-vb kernel: [14326.695896] [] sf_instantiate.isra.1+0xcd/0x180 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.695900] [] sf_create_aux+0x1af/0x250 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.695905] [] sf_create+0x13/0x20 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.695909] [] vfs_create+0xb4/0x120 Jun 23 11:45:02 eddie-vb kernel: [14326.695912] [] do_last+0x649/0x730 Jun 23 11:45:02 eddie-vb kernel: [14326.695915] [] path_openat+0xca/0x3f0 Jun 23 11:45:02 eddie-vb kernel: [14326.695918] [] do_filp_open+0x42/0xa0 Jun 23 11:45:02 eddie-vb kernel: [14326.695923] [] ? strncpy_from_user+0x31/0x40 Jun 23 11:45:02 eddie-vb kernel: [14326.695927] [] ? do_getname+0x10a/0x180 Jun 23 11:45:02 eddie-vb kernel: [14326.695931] [] ? _raw_spin_lock+0xe/0x20 Jun 23 11:45:02 eddie-vb kernel: [14326.695934] [] ? alloc_fd+0xf7/0x150 Jun 23 11:45:02 eddie-vb kernel: [14326.695939] [] do_sys_open+0xed/0x220 Jun 23 11:45:02 eddie-vb kernel: [14326.695942] [] ? sys_readlinkat+0x7a/0xb0 Jun 23 11:45:02 eddie-vb kernel: [14326.695945] [] sys_open+0x20/0x30 Jun 23 11:45:02 eddie-vb kernel: [14326.695949] [] system_call_fastpath+0x16/0x1b Jun 23 11:45:02 eddie-vb kernel: [14326.695952] ---[ end trace 3143457a90365bdb ]--- Jun 23 11:45:02 eddie-vb kernel: [14326.695954] ------------[ cut here ]------------ Jun 23 11:45:02 eddie-vb kernel: [14326.695957] WARNING: at /build/buildd/linux-3.0.0/fs/dcache.c:1360 d_set_d_op+0xb1/0xc0() Jun 23 11:45:02 eddie-vb kernel: [14326.695959] Hardware name: VirtualBox Jun 23 11:45:02 eddie-vb kernel: [14326.695960] Modules linked in: vboxsf bnep des_generic rfcomm bluetooth md4 vboxvideo drm vesafb nls_utf8 xt_hl cifs ip6t_rt binfmt_misc snd_intel8x0 snd_ac97_codec nf_conntrack_ipv6 nf_defrag_ipv6 ac97_bus ipt_REJECT snd_pcm xt_multiport xt_limit snd_seq_midi xt_tcpudp xt_addrtype snd_rawmidi snd_seq_midi_event snd_seq xt_state ppdev snd_timer ip6table_filter ip6_tables snd_seq_device nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp snd nf_nat soundcore nf_conntrack_ipv4 nf_defrag_ipv4 joydev nf_conntrack_ftp nf_conntrack vboxguest snd_page_alloc parport_pc i2c_piix4 psmouse serio_raw iptable_filter lp parport ip_tables x_tables usbhid hid ahci libahci e1000 Jun 23 11:45:02 eddie-vb kernel: [14326.695995] Pid: 3889, comm: vim Tainted: G W 3.0.0-22-generic #36-Ubuntu Jun 23 11:45:02 eddie-vb kernel: [14326.695997] Call Trace: Jun 23 11:45:02 eddie-vb kernel: [14326.696000] [] warn_slowpath_common+0x7f/0xc0 Jun 23 11:45:02 eddie-vb kernel: [14326.696004] [] warn_slowpath_null+0x1a/0x20 Jun 23 11:45:02 eddie-vb kernel: [14326.696007] [] d_set_d_op+0xb1/0xc0 Jun 23 11:45:02 eddie-vb kernel: [14326.696011] [] sf_instantiate.isra.1+0xcd/0x180 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.696015] [] sf_create_aux+0x1af/0x250 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.696019] [] sf_create+0x13/0x20 [vboxsf] Jun 23 11:45:02 eddie-vb kernel: [14326.696022] [] vfs_create+0xb4/0x120 Jun 23 11:45:02 eddie-vb kernel: [14326.696025] [] do_last+0x649/0x730 Jun 23 11:45:02 eddie-vb kernel: [14326.696028] [] path_openat+0xca/0x3f0 Jun 23 11:45:02 eddie-vb kernel: [14326.696031] [] do_filp_open+0x42/0xa0 Jun 23 11:45:02 eddie-vb kernel: [14326.696034] [] ? strncpy_from_user+0x31/0x40 Jun 23 11:45:02 eddie-vb kernel: [14326.696037] [] ? do_getname+0x10a/0x180 Jun 23 11:45:02 eddie-vb kernel: [14326.696040] [] ? _raw_spin_lock+0xe/0x20 Jun 23 11:45:02 eddie-vb kernel: [14326.696043] [] ? alloc_fd+0xf7/0x150 Jun 23 11:45:02 eddie-vb kernel: [14326.696046] [] do_sys_open+0xed/0x220 Jun 23 11:45:02 eddie-vb kernel: [14326.696049] [] ? sys_readlinkat+0x7a/0xb0 Jun 23 11:45:02 eddie-vb kernel: [14326.696053] [] sys_open+0x20/0x30 Jun 23 11:45:02 eddie-vb kernel: [14326.696056] [] system_call_fastpath+0x16/0x1b Jun 23 11:45:02 eddie-vb kernel: [14326.696058] ---[ end trace 3143457a90365bdc ]--- Jun 23 12:00:01 eddie-vb CRON[3985]: (eddie) CMD (/home/eddie/bin/disktest.sh > /dev/null 2>&1; echo ""disktest.sh RC = $? $(date)"" > /tmp/disktest.log) Jun 23 12:00:01 eddie-vb postfix/pickup[3536]: DE6F6C0111: uid=1000 from= }}}" defect closed other VirtualBox 4.1.18 invalid kernel warning VirtualBox Linux Windows