Ubuntu
linux-source-2.6.17 package

packet loss on rtl8180l

Bug #124822 reported by anarcat
8
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Won't Fix
Undecided
Unassigned
linux-source-2.6.17 (Ubuntu)
Won't Fix
Undecided
Unassigned

Bug Description

Binary package hint: linux-image-2.6.17-11-generic

I have a Realtek RTL8180L internal wifi card here (at least that's what lspci tells me). I have quite regular packet loss on the device (which don't occur on the wired interface). Say around 4-5 seconds of packet loss every minute. Rather strange phenomenon, i can't explain it without a kernel bug, so I thought important of notifying you guys.

This is the complete lspci:

02:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8180L 802.11b MAC (rev 20)

...which is rather odd because thinkwiki.org says this Thinkpad T40 shoudl have either an "IBM" (using the Atheros driver) Intel (ipw2100) or Cisco chipset (airo).

and dmesg:

[17179596.764000] rtl8180: Configuring chip resources
[17179596.764000] ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
[17179596.764000] rtl8180: Memory mapped space @ 0xc0201000
[17179596.764000] rtl8180: MAC controller is a RTL8180 (v. F)
[17179596.764000] rtl8180: This is a MINI-PCI NIC
[17179596.764000] rtl8180: Reported EEPROM chip is a 93c46 (1Kbit)
[17179596.768000] rtl8180: Card MAC address is 00:0d:f0:11:2c:72
[17179596.776000] rtl8180: EEPROM version 102
[17179596.780000] rtl8180: RfParam: 5
[17179596.780000] rtl8180: Card reports RF frontend by Philips.
[17179596.780000] rtl8180: OK! Philips SA2400 radio chipset is supported.
[17179596.780000] rtl8180: Analog PHY found
[17179596.780000] rtl8180: Energy threshold: b
[17179596.780000] rtl8180: PAPE from CONFIG2: 6
[17179596.780000] rtl8180: Antenna A is default antenna
[17179596.780000] rtl8180: Antenna diversity is enabled
[17179596.780000] rtl8180: Carrier sense 1
[17179596.780000] rtl8180: 40-bit WEP is supported in hardware
[17179596.780000] rtl8180: 104-bit WEP is supported in hardware
[17179596.780000] rtl8180: IRQ 11
[17179596.780000] rtl8180: Driver probe completed

uname:

Linux justine-laptop 2.6.17-11-generic #2 SMP Fri May 18 23:39:08 UTC 2007 i686 GNU/Linux

I tried the kernel from edgy-proposed (-50) and from gutsy (2.6.22, not booting at all :). Am capable of compiling a custom kernel and applying patches for debugging purposes.

lsmod:

Module Size Used by
ipv6 272288 8
binfmt_misc 13448 1
rfcomm 42260 0
l2cap 27136 5 rfcomm
bluetooth 53476 4 rfcomm,l2cap
nvram 10376 1
uinput 10368 1
radeon 118816 2
drm 74644 3 radeon
speedstep_centrino 9760 1
cpufreq_userspace 5408 0
cpufreq_stats 7744 0
freq_table 6048 2 speedstep_centrino,cpufreq_stats
cpufreq_powersave 2944 0
cpufreq_ondemand 8876 1
cpufreq_conservative 8712 0
video 17540 0
tc1100_wmi 8324 0
sbs 16804 0
sony_acpi 6412 0
pcc_acpi 14080 0
ibm_acpi 28672 0
i2c_ec 6272 1 sbs
i2c_core 23424 1 i2c_ec
hotkey 11556 0
dock 8716 0
dev_acpi 12292 0
button 7952 0
battery 11652 0
container 5632 0
ac 6788 0
asus_acpi 17688 0
lp 12964 0
af_packet 24584 6
pcmcia 40380 0
joydev 11200 0
tsdev 9152 0
irtty_sir 10112 0
sir_dev 18308 1 irtty_sir
r818x 95372 0
e100 38020 0
ieee80211_rtl 85640 1 r818x
mii 6912 1 e100
yenta_socket 28812 2
rsrc_nonstatic 15360 1 yenta_socket
pcmcia_core 43924 3 pcmcia,yenta_socket,rsrc_nonstatic
snd_intel8x0 34844 3
snd_ac97_codec 97696 1 snd_intel8x0
snd_ac97_bus 3456 1 snd_ac97_codec
nsc_ircc 25100 0
snd_pcm_oss 47360 0
snd_mixer_oss 19584 1 snd_pcm_oss
psmouse 41352 0
irda 214332 3 irtty_sir,sir_dev,nsc_ircc
parport_pc 37796 1
hw_random 7320 0
serio_raw 8452 0
pcspkr 4352 0
crc_ccitt 3200 1 irda
intel_agp 26012 1
agpgart 34888 2 drm,intel_agp
parport 39496 2 lp,parport_pc
evdev 11392 3
snd_pcm 84612 4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
shpchp 42144 0
pci_hotplug 32828 1 shpchp
floppy 63044 0
snd_timer 25348 2 snd_pcm
snd 58372 10 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11232 1 snd
snd_page_alloc 11400 2 snd_intel8x0,snd_pcm
ext3 142856 1
jbd 62228 1 ext3
ehci_hcd 34696 0
uhci_hcd 24968 0
usbcore 134912 3 ehci_hcd,uhci_hcd
ide_generic 2432 0
ide_cd 33696 0
cdrom 38944 1 ide_cd
ide_disk 18560 3
piix 11780 1
generic 6276 0
thermal 15624 0
processor 31560 2 speedstep_centrino,thermal
fan 6020 0
fbcon 41504 0
tileblit 3840 1 fbcon
font 9344 1 fbcon
bitblit 7168 1 fbcon
softcursor 3328 1 bitblit
vesafb 9244 0
capability 5896 0
commoncap 8704 1 capability

will happily provide more information upon request.

Revision history for this message
Chuck Short (zulcss) wrote :

Can you attach the full dmesg?

Thanks
chuck

Revision history for this message
anarcat (anarcat) wrote : full dmesg

Sorry for the delay. Here's the full dmesg.

Note that I now upgraded the laptop to 7.04 and the problem still occurs reliably.

Revision history for this message
Alexander Kopf (kopf-alexander) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Can you try with latest Ubuntu release? Thanks in advance.

Changed in linux-source-2.6.17:
status: New → Incomplete
Revision history for this message
Sergio Zanchetta (primes2h) wrote :

The 18 month support period for Edgy Eft 6.10 has reached it's end of life. As a result, we are closing the linux-source-2.6.17 Edgy Eft kernel task.

Changed in linux-source-2.6.17:
status: Incomplete → Invalid
Revision history for this message
Sergio Zanchetta (primes2h) wrote :

Hardy Heron 8.04 was recently released. It would be helpful if you could test the new release and verify if this is still an issue - http://www.ubuntu.com/getubuntu/download . You should be able to test your bug using the LiveCD. Please let us know your results. Thanks.

Changed in linux:
status: New → Incomplete
Revision history for this message
anarcat (anarcat) wrote : Re: [Bug 124822] Re: packet loss on rtl8180l

As far as I know, there are still issues with this driver, even on 8.04.
I will check for this exact symptom but there's at least one that
remains that I'm aware of: when anything bigger than a ACK is uploaded
on the wifi card, the machine freezes completely.

I will try to update this bug with the details.

--
Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
                        - Frank Zappa

Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

Revision history for this message
anarcat (anarcat) wrote :

So this bug has been fixed... in a way, in the latest release (8.10
ibex). What's happening there is that the module has been simply removed
from the distribution, hereby implementing *complete* and systematic
packet loss on the interface. :P

I had to revert to an older installed kernel to keep the wifi running. I
haven't retested the issue with that older kernel however.

A.

--
We have no friends but the mountains.
   - Kurdish saying

Revision history for this message
Brad Figg (brad-figg) wrote :

Is this still an issue? What is the latest release that you've tested?

Changed in linux (Ubuntu):
assignee: nobody → Brad Figg (brad-figg)
Sergio Zanchetta (primes2h)
Changed in linux-source-2.6.17 (Ubuntu):
status: Invalid → Won't Fix
Revision history for this message
Brad Figg (brad-figg) wrote :

No response from last query for more information.

Changed in linux (Ubuntu):
assignee: Brad Figg (brad-figg) → nobody
status: Incomplete → Won't Fix
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