Hi, is this a known problem? Regards Richard Jun 16 09:01:06 richard kernel: [ 85.231233] ------------[ cut here ]------------ Jun 16 09:01:06 richard kernel: [ 85.231258] WARNING: at /home/rz/rpmbuild/kernels/linux-2.6.30/kernel/mutex-debug.c:105 mutex_destroy+0x35/0x3f() Jun 16 09:01:06 richard kernel: [ 85.231272] Hardware name: NB81005 Jun 16 09:01:06 richard kernel: [ 85.231280] Modules linked in: i915 i2c_algo_bit rfcomm l2cap bluetooth ppdev parport_pc lp parport autofs4 acpi_cpufreq cpufreq_userspace cpufreq_conservative cpufreq_powersave cpufreq_stats pci_slot sbs sbshc container drm i2c_core ipv6 snd_hda_codec_realtek arc4 ecb snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm uvcvideo videodev v4l1_compat video output rtc_cmos snd_seq_dummy ath5k serio_raw mac80211 led_class cfg80211 r8169 mii battery ac snd_seq_oss snd_seq_midi button processor snd_rawmidi snd_seq_midi_event snd_seq snd_timer pcspkr pata_acpi snd_seq_device iTCO_wdt iTCO_vendor_support intel_agp snd agpgart shpchp soundcore snd_page_alloc xt_multiport nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit iptable_filter ip_tables x_tables thermal fan fuse loop nls_iso8859_1 vfat fat squashfs ata_generic ehci_hcd isofs Jun 16 09:01:06 richard kernel: [ 85.231685] Pid: 4246, comm: pulseaudio Not tainted 2.6.30v1 #1 Jun 16 09:01:06 richard kernel: [ 85.231696] Call Trace: Jun 16 09:01:06 richard kernel: [ 85.231719] [] warn_slowpath_common+0x60/0x90 Jun 16 09:01:06 richard kernel: [ 85.231737] [] warn_slowpath_null+0xd/0x10 Jun 16 09:01:06 richard kernel: [ 85.231754] [] mutex_destroy+0x35/0x3f Jun 16 09:01:06 richard kernel: [ 85.231774] [] unlock_new_inode+0x24/0x93 Jun 16 09:01:06 richard kernel: [ 85.231792] [] ext3_mkdir+0x23c/0x270 Jun 16 09:01:07 richard kernel: [ 85.231809] [] vfs_mkdir+0xc1/0x12e Jun 16 09:01:07 richard kernel: [ 85.231825] [] sys_mkdirat+0x8c/0xc7 Jun 16 09:01:07 richard kernel: [ 85.231843] [] ? remove_vma+0x55/0x5b Jun 16 09:01:07 richard kernel: [ 85.231860] [] ? do_munmap+0x21c/0x237 Jun 16 09:01:07 richard kernel: [ 85.231878] [] ? sysenter_do_call+0x2d/0x38 Jun 16 09:01:07 richard kernel: [ 85.231898] [] ? trace_hardirqs_on_thunk+0xc/0x10 Jun 16 09:01:07 richard kernel: [ 85.231915] [] ? sysenter_exit+0xf/0x1a Jun 16 09:01:07 richard kernel: [ 85.231932] [] sys_mkdir+0x10/0x12 Jun 16 09:01:07 richard kernel: [ 85.231949] [] sysenter_do_call+0x12/0x38 Jun 16 09:01:07 richard kernel: [ 85.231962] ---[ end trace fcd76b47795c1c4a ]---