abrt version: 2.0.3
architecture:   x86_64
cmdline:        ro root=UUID=a2db6f71-425d-44e2-a260-76af46e7752b rd_MD_UUID=cfbda1a5:0c063720:8d7e8308:b4f7399e rd_MD_UUID=2133f5e1:abc593ac:8d7e8308:b4f7399e rd_NO_LUKS rd_NO_LVM rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
comment:        not sure, attaching/detaching webcams
component:      kernel
kernel:         2.6.38.8-32.fc15.x86_64
kernel_tainted: 512
kernel_tainted_long: Taint on warning.
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         WARNING: at arch/x86/kernel/dumpstack_64.c:129 dump_trace+0x2c1/0x30d()
time:           Wed Jul  6 08:08:50 2011

backtrace:
:WARNING: at arch/x86/kernel/dumpstack_64.c:129 dump_trace+0x2c1/0x30d()
:Hardware name:         
:Perf: bad frame pointer = ffffffffc01c64a3 in callchain
:Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi gspca_sn9c20x gspca_main videodev v4l2_compat_ioctl32 tcp_lp hid_magicmouse fuse hidp vboxnetadp vboxnetflt vboxdrv sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf rfcomm sco bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 l2cap ip6table_filter nf_conntrack_netbios_ns ip6_tables joydev btusb bluetooth rfkill snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel microcode snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm i2c_i801 iTCO_wdt iTCO_vendor_support snd_timer e1000e snd soundcore snd_page_alloc ipv6 raid1 firewire_ohci firewire_core crc_itu_t radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded: scsi_wait_scan]
:Pid: 1350, comm: Xorg Not tainted 2.6.38.8-32.fc15.x86_64 #1
:Call Trace:
: <IRQ>  [<ffffffff8105511a>] warn_slowpath_common+0x83/0x9b
: [<ffffffff810551d5>] warn_slowpath_fmt+0x46/0x48
: [<ffffffff8147da15>] ? bad_to_user+0x6f/0x748
: [<ffffffff8100c431>] dump_trace+0x2c1/0x30d
: [<ffffffff81104573>] ? dma_pool_free+0xd8/0xe4
: [<ffffffff813521f5>] ? qh_completions+0x3db/0x452
: [<ffffffff81019bde>] perf_callchain_kernel+0x5c/0x5e
: [<ffffffff810d3a8c>] perf_prepare_sample+0xf2/0x1d2
: [<ffffffff810d3cb2>] __perf_event_overflow+0x146/0x191
: [<ffffffff81010145>] ? native_sched_clock+0x34/0x36
: [<ffffffff81010150>] ? sched_clock+0x9/0xd
: [<ffffffff8107408c>] ? sched_clock_cpu+0x42/0xc6
: [<ffffffff810d42fa>] perf_event_overflow+0x14/0x16
: [<ffffffff810d438f>] perf_swevent_hrtimer+0x93/0xd1
: [<ffffffff8112f3e1>] ? sys_ioctl+0x0/0x7b
: [<ffffffff8122eb1b>] ? timerqueue_del+0x59/0x6a
: [<ffffffff81072010>] __run_hrtimer+0xb9/0x13f
: [<ffffffff810d42fc>] ? perf_swevent_hrtimer+0x0/0xd1
: [<ffffffff81072717>] hrtimer_interrupt+0xe1/0x1b5
: [<ffffffff8147c096>] smp_apic_timer_interrupt+0x79/0x8c
: [<ffffffff8100a593>] apic_timer_interrupt+0x13/0x20
: <EOI>  [<ffffffff81011c0c>] ? init_fpu+0x91/0xa0
: [<ffffffff8112f3e1>] ? sys_ioctl+0x0/0x7b
: [<ffffffff81009bc2>] ? system_call_fastpath+0x16/0x1b