kerneloops on kernel 2.6.26.5-45.fc9.x86_64

[yunusf9 tester]

Hi

After doing update on 27 Sep 08, my internal microphone (on Acer
TravelMate 6291 Laptop) works for the first time. (I found no way to
make it work since F7). This is great. Thanks to Fedora Developers!

But I also got kerneloops message after doing this update. It happened
when I disconnected my internet connection.

Here the message I got from dmesg:

------------[ cut here ]------------
WARNING: at drivers/usb/serial/usb-serial.c:320 serial_write_room
+0x53/0x68 [usb
serial]() (Tainted: G        W)
Modules linked in: ppp_deflate zlib_deflate ppp_async ppp_generic slhc
bridge bn
ep rfcomm l2cap bluetooth fuse sunrpc ipt_REJECT nf_conntrack_ipv4
iptable_filte
r ip_tables ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state
nf_conntrack ip6tab
le_filter ip6_tables x_tables cpufreq_ondemand acpi_cpufreq freq_table
dm_mirror
 dm_log dm_multipath dm_mod ipv6 snd_hda_intel snd_seq_dummy sr_mod
snd_seq_oss 
cdrom snd_seq_midi_event snd_seq option snd_seq_device arc4 usbserial
ecb snd_pc
m_oss crypto_blkcipher i915 ppdev pata_acpi snd_mixer_oss snd_pcm
iwl3945 parpor
t_pc snd_timer acer_wmi ata_piix irda video snd_page_alloc parport
output uvcvid
eo rfkill snd_hwdep sdhci pcspkr crc_ccitt compat_ioctl32 firewire_ohci
drm snd 
videodev mac80211 firewire_core usb_storage wmi v4l1_compat battery ac
i2c_i801 
ata_generic joydev mmc_core tg3 yenta_socket i2c_algo_bit rsrc_nonstatic
sg iTCO
_wdt iTCO_vendor_support crc_itu_t cfg80211 serio_raw i2c_core soundcore
ahci li
bata sd_mod scsi_mod ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last
unloaded:
 microcode]
Pid: 0, comm: swapper Tainted: G        W 2.6.26.5-45.fc9.x86_64 #1

Call Trace:
 <IRQ>  [<ffffffff81036ebf>] warn_on_slowpath+0x60/0xa3
 [<ffffffff811cd695>] ? usb_submit_urb+0x216/0x22d
 [<ffffffffa03382f5>] ? :option:option_write+0xa3/0xed
 [<ffffffffa0324535>] :usbserial:serial_write_room+0x53/0x68
 [<ffffffff81198ba7>] tty_write_room+0x18/0x1a
 [<ffffffff8119691d>] opost+0x1b/0x1d4
 [<ffffffff8119862b>] n_tty_receive_buf+0x9bd/0xe30
 [<ffffffff810295d7>] ? activate_task+0x5f/0x82
 [<ffffffff8102ce47>] ? __wake_up+0x43/0x4f
 [<ffffffff81192697>] ? tty_ldisc_try+0x3d/0x45
 [<ffffffff81192cfc>] flush_to_ldisc+0x117/0x1c1
 [<ffffffff81192df1>] tty_flip_buffer_push+0x4b/0x5c
 [<ffffffffa0338837>] :option:option_indat_callback+0x4c/0x89
 [<ffffffff811cbff9>] usb_hcd_giveback_urb+0x7e/0xb0
 [<ffffffffa0015744>] :uhci_hcd:uhci_giveback_urb+0x107/0x19c
 [<ffffffffa0016085>] :uhci_hcd:uhci_scan_schedule+0x5a4/0x85f
 [<ffffffffa0017fc1>] :uhci_hcd:uhci_irq+0x136/0x14c
 [<ffffffff811cbbde>] usb_hcd_irq+0x40/0x88
 [<ffffffff81040130>] ? do_timer+0x18/0xb6
 [<ffffffff81076044>] handle_IRQ_event+0x2e/0x65
 [<ffffffff810772d7>] handle_fasteoi_irq+0x95/0xd0
 [<ffffffff8100ea08>] do_IRQ+0xf7/0x169
 [<ffffffff8100c68d>] ret_from_intr+0x0/0x19
 <EOI>  [<ffffffff8117331a>] ? acpi_set_register+0x171/0x182
 [<ffffffff8118791f>] ? acpi_idle_enter_bm+0x31f/0x3ad
 [<ffffffff81187917>] ? acpi_idle_enter_bm+0x317/0x3ad
 [<ffffffff811fc2a5>] ? cpuidle_idle_call+0x8d/0xc1
 [<ffffffff811fc218>] ? cpuidle_idle_call+0x0/0xc1
 [<ffffffff8100a000>] ? default_idle+0x0/0x4b
 [<ffffffff8100b1ca>] ? cpu_idle+0x92/0xda
 [<ffffffff8129708a>] ? start_secondary+0x169/0x16d

---[ end trace 9493f134c6560921 ]---


Thank you
yunus
-------------
OS : Fedora 9 on Acer Laptop TravelMate 6291
internet connection : wvdial + HSDPA Huawei USB Modem