I do not know, if this belongs to this bug, but found it right after the report.
Maybe this could also be a problem with alsa?? Very hard to report this bug. [ 175.064915] mixer_applet2[5334] trap stack segment ip:7fd9d0ebf576 sp:7fffdd635170 error:0 [ 201.382928] mixer_applet2[5667] trap stack segment ip:7f86f2b28576 sp:7fffff29e040 error:0 [ 318.110025] kvm: emulating exchange as write [ 9155.553971] ------------[ cut here ]------------ [ 9155.553974] WARNING: at /build/buildd/linux-2.6.28/fs/sysfs/dir.c:462 sysfs_add_one+0x4c/0x50() [ 9155.553975] sysfs: duplicate filename '14:4' can not be created [ 9155.553977] Modules linked in: snd_pcm_oss(+) snd_mixer_oss sound cbc aes_x86_64 aes_generic binfmt_misc bnep kvm_intel kvm acpi_cpufreq video output bridge stp tun w83627ehf hwmon_vid sbp2 ppdev parport_pc lp parport mt352 arc4 ecb saa7134_dvb videobuf_dvb dvb_core saa7134_alsa mt20xx tea5767 tda9887 tda8290 tuner rt61pci crc_itu_t saa7134 rt2x00pci rt2x00lib snd_hda_intel ir_common led_class snd_pcm snd_seq compat_ioctl32 mac80211 snd_timer videodev snd_seq_device v4l1_compat v4l2_common videobuf_dma_sg cfg80211 pcspkr videobuf_core x38_edac snd soundcore tveeprom eeprom_93cx6 edac_core iTCO_wdt iTCO_vendor_support snd_page_alloc nvidia(P) usbhid ohci1394 skge ieee1394 sky2 raid10 raid456 async_xor async_memcpy async_tx xor raid1 raid0 multipath linear fbcon tileblit font bitblit softcursor fuse uhci_hcd ehci_hcd compcache lzo_decompress lzo_compress tlsf [ 9155.554027] Pid: 10741, comm: modprobe Tainted: P 2.6.28-4-generic #11-Ubuntu [ 9155.554028] Call Trace: [ 9155.554033] [<ffffffff8024d7a7>] warn_slowpath+0xb7/0xf0 [ 9155.554037] [<ffffffff802f8afb>] ? iput+0x2b/0x70 [ 9155.554039] [<ffffffff8034535b>] ? sysfs_addrm_finish+0x4b/0x130 [ 9155.554041] [<ffffffff80344819>] ? __sysfs_add_one+0x39/0xb0 [ 9155.554045] [<ffffffff80408730>] ? idr_get_empty_slot+0x110/0x2d0 [ 9155.554047] [<ffffffff804089a2>] ? ida_get_new_above+0xb2/0x220 [ 9155.554051] [<ffffffff80344410>] ? sysfs_ilookup_test+0x0/0x20 [ 9155.554053] [<ffffffff802f92ac>] ? ifind+0xbc/0xc0 [ 9155.554056] [<ffffffff80344410>] ? sysfs_ilookup_test+0x0/0x20 [ 9155.554058] [<ffffffff803446fd>] ? sysfs_find_dirent+0x2d/0x40 [ 9155.554060] [<ffffffff80344a1c>] sysfs_add_one+0x4c/0x50 [ 9155.554062] [<ffffffff80345a3b>] sysfs_do_create_link+0x10b/0x160 [ 9155.554065] [<ffffffff80345aae>] sysfs_create_link+0xe/0x10 [ 9155.554068] [<ffffffff804a85d4>] device_add+0x214/0x480 [ 9155.554071] [<ffffffff8022bc30>] ? native_store_tr+0x0/0x10 [ 9155.554074] [<ffffffff804095f7>] ? kobject_init+0x37/0xa0 [ 9155.554076] [<ffffffff804a8859>] device_register+0x19/0x20 [ 9155.554078] [<ffffffff804a8946>] device_create_vargs+0xe6/0x100 [ 9155.554082] [<ffffffff804a89ab>] device_create+0x4b/0x50 [ 9155.554088] [<ffffffff8067eeb9>] ? _spin_lock+0x9/0x10 [ 9155.554093] [<ffffffffa0933235>] sound_insert_unit+0x105/0x1d0 [soundcore] [ 9155.554099] [<ffffffffa093345d>] register_sound_special_device+0x9d/0x210 [soundcore] [ 9155.554102] [<ffffffff80345330>] ? sysfs_addrm_finish+0x20/0x130 [ 9155.554111] [<ffffffffa09411d9>] snd_register_oss_device+0x229/0x2a0 [snd] [ 9155.554116] [<ffffffffa0c8085b>] register_oss_dsp+0x5b/0x90 [snd_pcm_oss] [ 9155.554118] [<ffffffff803456c4>] ? sysfs_create_dir+0x34/0x50 [ 9155.554121] [<ffffffff804089a2>] ? ida_get_new_above+0xb2/0x220 [ 9155.554125] [<ffffffffa0c81f17>] snd_pcm_oss_register_minor+0x167/0x260 [snd_pcm_oss] [ 9155.554128] [<ffffffff802f92ac>] ? ifind+0xbc/0xc0 [ 9155.554131] [<ffffffff80344410>] ? sysfs_ilookup_test+0x0/0x20 [ 9155.554133] [<ffffffff80345330>] ? sysfs_addrm_finish+0x20/0x130 [ 9155.554135] [<ffffffff8067eeb9>] ? _spin_lock+0x9/0x10 [ 9155.554139] [<ffffffff802db7d2>] ? add_partial+0x52/0x90 [ 9155.554141] [<ffffffff8067d941>] ? mutex_lock+0x11/0x30 [ 9155.554150] [<ffffffffa0a032ef>] snd_pcm_notify+0xcf/0xf0 [snd_pcm] [ 9155.554155] [<ffffffffa002b044>] alsa_pcm_oss_init+0x44/0x8c [snd_pcm_oss] [ 9155.554159] [<ffffffffa002b000>] ? alsa_pcm_oss_init+0x0/0x8c [snd_pcm_oss] [ 9155.554162] [<ffffffff8020a03b>] do_one_initcall+0x3b/0x170 [ 9155.554166] [<ffffffff802cc8cd>] ? __vunmap+0xcd/0x120 [ 9155.554170] [<ffffffff802cc975>] ? vfree+0x25/0x30 [ 9155.554173] [<ffffffff8027bbf8>] ? load_module+0x11c8/0x11d0 [ 9155.554180] [<ffffffff8027bcad>] sys_init_module+0xad/0x1e0 [ 9155.554182] [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b [ 9155.554184] ---[ end trace 83ce7cee41302ff8 ]--- [23948.063066] mixer_applet2[17933] trap stack segment ip:7f4794952576 sp:7fffa10c7e40 error:0 [23978.367953] console-kit-dae[4449]: segfault at 8 ip 000000000040e299 sp 00007fff4ff5a9c0 error 4 in console-kit-daemon[400000+22000] [24037.238095] firefox[22593]: segfault at 7fdcfe52ae8e ip 00007fdcff592da1 sp 00007fff086b70b0 error 4 in libc-2.9.so[7fdcff55d000+168000] -- [jaunty] mixer_applet2 freezes session https://bugs.launchpad.net/bugs/318310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs