So my syslog filled up with this:<br>Feb 8 06:47:59 mythbox upsd[3836]: Data for UPS [CyberPower] is stale - check driver<br>Feb 8 06:47:59 mythbox upsd[3836]: UPS [CyberPower] data is no longer stale<br>Feb 8 06:48:01 mythbox upsd[3836]: Data for UPS [CyberPower] is stale - check driver
<br>Feb 8 06:48:01 mythbox upsd[3836]: UPS [CyberPower] data is no longer stale<br>Feb 8 06:48:03 mythbox upsd[3836]: Data for UPS [CyberPower] is stale - check driver<br>Feb 8 06:48:03 mythbox upsd[3836]: UPS [CyberPower] data is no longer stale
<br>Feb 8 06:48:05 mythbox upsd[3836]: Data for UPS [CyberPower] is stale - check driver<br>Feb 8 06:48:05 mythbox upsd[3836]: UPS [CyberPower] data is no longer stale<br>...<br><br>I noticed that the ups was nolonger listed in lsusb, so I unloaded the program and drivers and unplugged and replugged the ups.
<br><br>After that I loaded upsdrvctl, and then upsd and my syslog spit out the following:<br>Feb 8 19:09:34 mythbox usbhid-ups[8984]: Startup successful<br>Feb 8 19:09:34 mythbox upsd[8985]: listening on <a href="http://0.0.0.0">
0.0.0.0</a> port 3493<br>Feb 8 19:09:34 mythbox upsd[8985]: Connected to UPS [CyberPower]: CyberPower<br>Feb 8 19:09:34 mythbox upsd[8986]: Startup successful<br>Feb 8 19:09:39 mythbox kernel: Unable to handle kernel NULL pointer dereference at 0000000000000078 RIP:
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88086947>] :ohci_hcd:ohci_urb_dequeue+0x2f/0x79<br>Feb 8 19:09:39 mythbox kernel: PGD a18d067 PUD 33d0f067 PMD 0<br>Feb 8 19:09:39 mythbox kernel: Oops: 0000 [1] PREEMPT
<br>Feb 8 19:09:39 mythbox kernel: CPU 0<br>Feb 8 19:09:39 mythbox kernel: Modules linked in: nvidia(P) imon_vfd lirc_serial lirc_dev ipv6 dm_snapshot dm_mirror dm_mod w83627hf hwmon_vid eeprom lm90 i2c_isa<br>cpufreq_ondemand cpufreq_userspace powernow_k8 freq_table processor sbp2 joydev ide_cd cdrom usbhid ff_memless tuner amd74xx snd_intel8x0 snd_ac97_codec snd_ac97_bu
<br>s snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd i2c_nforce2 cx8800 cx88_dvb cx8802 cx88xx ir_common cx88_vp3054_i2c i2c_algo_bit mt352 dvb_pll or51132 video_buf_d<br>vb dvb_core psmouse generic soundcore nxt200x firmware_class video_buf tveeprom compat_ioctl32 btcx_risc videodev v4l1_compat v4l2_common rtc 8250_pnp 8250 serial_c
<br>ore parport_pc parport ohci1394 ieee1394 k8temp ohci_hcd ehci_hcd ide_core isl6421 zl10353 cx24123 lgdt330x cx22702 r8169 i2c_core usbcore forcedeth snd_page_alloc<br>evdev unix<br>Feb 8 19:09:39 mythbox kernel: Pid: 8984, comm: usbhid-ups Tainted: P
2.6.19-Dec_1st #2<br>Feb 8 19:09:39 mythbox kernel: RIP: 0010:[<ffffffff88086947>] [<ffffffff88086947>] :ohci_hcd:ohci_urb_dequeue+0x2f/0x79<br>Feb 8 19:09:39 mythbox kernel: RSP: 0018:ffff8100024c1d78 EFLAGS: 00010086
<br>Feb 8 19:09:39 mythbox kernel: RAX: ffff81000ac09cc0 RBX: 0000000000000287 RCX: ffff810016418220<br>Feb 8 19:09:39 mythbox kernel: RDX: ffff81003ea97138 RSI: 0000000000000038 RDI: ffff81003ea97000<br>Feb 8 19:09:39 mythbox kernel: RBP: 0000000000000286 R08: 000000000002ee50 R09: 00000000094b2ab6
<br>Feb 8 19:09:39 mythbox kernel: R10: 0000000045cbd7e3 R11: ffffffff88086918 R12: ffff81003ea97000<br>Feb 8 19:09:39 mythbox kernel: R13: ffff810016418200 R14: 00000000fffffffe R15: 00000000ffffffff<br>Feb 8 19:09:39 mythbox kernel: FS: 00002b57e827dc80(0000) GS:ffffffff80482000(0000) knlGS:00000000f776c6c0
<br>Feb 8 19:09:39 mythbox kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b<br>Feb 8 19:09:39 mythbox kernel: CR2: 0000000000000078 CR3: 0000000012ffa000 CR4: 00000000000006e0<br>Feb 8 19:09:39 mythbox kernel: Process usbhid-ups (pid: 8984, threadinfo ffff8100024c0000, task ffff81002dfc30c0)
<br>Feb 8 19:09:39 mythbox kernel: Stack: 00000000fffffff0 ffffffff88020f68 ffff810016418200 00007fffc2c873f0<br>Feb 8 19:09:39 mythbox kernel: ffff810003c16a40 00007fffc2c873f0 000000000000550b ffffffff88021505<br>Feb 8 19:09:39 mythbox kernel: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
<br>Feb 8 19:09:39 mythbox kernel: Call Trace:<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88020f68>] :usbcore:usb_hcd_unlink_urb+0x177/0x1eb<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88021505>] :usbcore:usb_kill_urb+0x72/0x121
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88028efd>] :usbcore:usbdev_ioctl+0x1201/0x155c<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80221c91>] default_wake_function+0x0/0xe<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c6c0e>] __down_failed+0x35/0x3a
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270cc9>] do_ioctl+0x55/0x6b<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270f31>] vfs_ioctl+0x252/0x26b<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270f86>] sys_ioctl+0x3c/0x5e
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff802096ee>] system_call+0x7e/0x83<br>Feb 8 19:09:39 mythbox kernel:<br>Feb 8 19:09:39 mythbox kernel:<br>Feb 8 19:09:39 mythbox kernel: Code: 80 7e 40 02 75 17 48 89 d7 e8 93 d8 ff ff eb 0d 48 85 c0 74
<br>Feb 8 19:09:39 mythbox kernel: RIP [<ffffffff88086947>] :ohci_hcd:ohci_urb_dequeue+0x2f/0x79<br>Feb 8 19:09:39 mythbox kernel: RSP <ffff8100024c1d78><br>Feb 8 19:09:39 mythbox kernel: CR2: 0000000000000078
<br>Feb 8 19:09:39 mythbox kernel: <6>note: usbhid-ups[8984] exited with preempt_count 1<br>Feb 8 19:09:39 mythbox kernel: BUG: scheduling while atomic: usbhid-ups/0x00000001/8984<br>Feb 8 19:09:39 mythbox kernel:
<br>Feb 8 19:09:39 mythbox kernel: Call Trace:<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c4afb>] __sched_text_start+0x5b/0x4c0<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80225745>] __call_console_drivers+0x41/0x4f
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c6e2d>] __down+0xb2/0x140<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80221c91>] default_wake_function+0x0/0xe<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80367193>] sk_free+0xbc/0x122
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c6c0e>] __down_failed+0x35/0x3a<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803642ea>] sock_destroy_inode+0x0/0x10<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88027a78>] :usbcore:usbdev_release+0x0/0xc3
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88027a9b>] :usbcore:usbdev_release+0x23/0xc3<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80265d82>] __fput+0x9e/0x1ca<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff802636fb>] filp_close+0x5c/0x64
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff8022712d>] put_files_struct+0x6b/0xc2<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80228529>] do_exit+0x267/0x946<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80218e94>] do_page_fault+0x727/0x7a3
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c717d>] error_exit+0x0/0x84<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88086918>] :ohci_hcd:ohci_urb_dequeue+0x0/0x79<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88086947>] :ohci_hcd:ohci_urb_dequeue+0x2f/0x79
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88020f68>] :usbcore:usb_hcd_unlink_urb+0x177/0x1eb<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88021505>] :usbcore:usb_kill_urb+0x72/0x121<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff88028efd>] :usbcore:usbdev_ioctl+0x1201/0x155c
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80221c91>] default_wake_function+0x0/0xe<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff803c6c0e>] __down_failed+0x35/0x3a<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270cc9>] do_ioctl+0x55/0x6b
<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270f31>] vfs_ioctl+0x252/0x26b<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff80270f86>] sys_ioctl+0x3c/0x5e<br>Feb 8 19:09:39 mythbox kernel: [<ffffffff802096ee>] system_call+0x7e/0x83
<br>Feb 8 19:09:39 mythbox kernel:<br><br>Then I tried to do another lsusb to see if it's still listed and lsusb locked up the terminal. I can't even kill -9 the lsusb process, it's just hung. Also, the [usbhid-ups] process is hung as well, and cannot be killed either.
<br><br>Any ideas what could cause this? It looks like at some point the program lost connection with my ups and the software didn't like that. I think I'm going to have to reboot to fix this one.<br><br>-Greg<br>