Comment 16 for bug 465352

I'm experiencing this bug with 2.6.33-29-realtime kernel on a single-core AMD Opteron 148 (no VirtualBox).
I'm using NVIDIA-Linux-x86_64-260.19.21 driver patched manually by these instructions: http://ubuntuforums.org/showpost.php?p=9233282&postcount=5

[21101.020190] BUG: scheduling while atomic: sirq-tasklet/0/0x00000001/10, CPU#0
[21101.020193] Modules linked in: binfmt_misc snd_emu10k1_synth snd_emux_synth drm snd_seq_virmidi snd_seq_midi_emul usbserial snd_emu10k1 dme1737 hwmon_vid snd_util_mem raw1394 snd_intel8x0 snd_ac97_codec snd_usb_audio ac97_bus snd_usb_lib snd_pcm_oss tuner snd_hwdep snd_mixer_oss snd_seq_dummy snd_pcm bttv snd_seq_oss snd_seq_midi v4l2_common snd_rawmidi ir_common i2c_algo_bit videobuf_dma_sg videobuf_core btcx_risc tveeprom ir_core snd_seq_midi_event gspca_zc3xx sbp2 snd_seq gspca_main xfs videodev amd64_edac_mod psmouse snd_timer emu10k1_gp exportfs lp v4l1_compat snd_seq_device edac_core ppdev v4l2_compat_ioctl32 serio_raw gameport nvidia(P) snd edac_mce_amd i2c_nforce2 k8temp soundcore snd_page_alloc parport_pc parport usbhid hid ohci1394 ieee1394 forcedeth sata_nv pata_amd
[21101.020237] Pid: 10, comm: sirq-tasklet/0 Tainted: P 2.6.33-29-realtime #1-Ubuntu
[21101.020240] Call Trace:
[21101.020249] [<ffffffff8104eaef>] __schedule_bug+0x6f/0x80
[21101.020254] [<ffffffff8154f48b>] __schedule+0x6cb/0x800
[21101.020260] [<ffffffff81096805>] ? task_blocks_on_rt_mutex+0x1a5/0x240
[21101.020263] [<ffffffff8154f73c>] schedule+0x2c/0x50
[21101.020266] [<ffffffff81550a56>] rt_spin_lock_slowlock+0x216/0x2f0
[21101.020270] [<ffffffff8155152b>] rt_spin_lock+0x3b/0x70
[21101.020273] [<ffffffff8104c1b1>] __wake_up+0x31/0x70
[21101.020722] [<ffffffffa05f7b90>] nv_post_event+0x100/0x1b0 [nvidia]
[21101.020938] [<ffffffffa05d0f54>] _nv021903rm+0xec/0x136 [nvidia]
[21101.021008] [<ffffffffa03327d8>] ? _nv010397rm+0xc0/0xe9 [nvidia]
[21101.021008] [<ffffffffa02edcda>] ? _nv009051rm+0xd4/0xfd [nvidia]
[21101.021008] [<ffffffffa02edca7>] ? _nv009051rm+0xa1/0xfd [nvidia]
[21101.021008] [<ffffffffa02f2702>] ? _nv009471rm+0xce/0x1f8 [nvidia]
[21101.021008] [<ffffffffa04aa26c>] ? _nv019001rm+0x325/0x826 [nvidia]
[21101.021008] [<ffffffffa04a1062>] ? _nv018982rm+0xc2/0x107 [nvidia]
[21101.021008] [<ffffffffa05d575d>] ? _nv002165rm+0x7d/0xae [nvidia]
[21101.021008] [<ffffffffa05db235>] ? rm_isr_bh+0x5a/0x8d [nvidia]
[21101.021008] [<ffffffffa05f63c3>] ? nv_kern_isr_bh+0x43/0x70 [nvidia]
[21101.021008] [<ffffffff81066f65>] ? __tasklet_action+0x75/0x130
[21101.021008] [<ffffffff810670ba>] ? tasklet_action+0x4a/0x50
[21101.021008] [<ffffffff8106816b>] ? run_ksoftirqd+0x1bb/0x350
[21101.021008] [<ffffffff81067fb0>] ? run_ksoftirqd+0x0/0x350
[21101.021008] [<ffffffff81067fb0>] ? run_ksoftirqd+0x0/0x350
[21101.021008] [<ffffffff81081cf6>] ? kthread+0x96/0xa0
[21101.021008] [<ffffffff8100c024>] ? kernel_thread_helper+0x4/0x10
[21101.021008] [<ffffffff81081c60>] ? kthread+0x0/0xa0
[21101.021008] [<ffffffff8100c020>] ? kernel_thread_helper+0x0/0x10