I am getting a similar error using the BCM4313 card on our Acer Aspire
One 722 netbooks running 12.04. They see the network and connect using
the brcmsmac driver, but will occasionally stop being able to transfer
over wifi. Network manager says the netbooks are connected and they have
an IP
** Also affects: linux (Arch Linux)
Importance: Undecided
Status: New
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Title:
Broadcom BCM4313 random AP disconnects and network hang
I've been trying on-and-off to reproduce this for several days now, but
unfortunately no luck. I must not have the right equipment to trigger
the bug.
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What hardware you have, Seth?
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Title:
Broadcom BCM4313 random AP disconnects and network hang
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The machine is a Samsung NF310 with BCM4313 wireless, PCI id 14e4:4727
just like in the original bug report. I'm testing with a Linksys E3000
router.
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One thing I never tried was trying a different security mechanism, like
changing from WPA2 to WPA (and trying both TKIP or AES) and WEP. I just
thought of it when I had issues with a PSP connecting to my AP last
night. I had to change the wireless settings from TKIP to AES in order
for it to work.
I tried the wireless settings and the hotspot still don't work. (Are we
talking about of create hotspots, rigth?)
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Title:
Broadcom BCM4313
Just the wifi settings where you set the keys/passphrase usually. You
should have WEP or WPA/WPA2 in most cases. Probably not a good idea to
change things if you are not sure.
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Terry, correct me if I'm wrong, but I believe the bug report is
regarding using BCM4313 as a STA (i.e. a client connected to an AP) and
not as an AP.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Changed in: linux (Ubuntu)
Assignee: Seth Forshee (sforshee) =
I'm not running it as an AP, I'm merely suggesting that we test with
different security modes on the AP (WEP, WPA/WPA2 w/ AES or TKIP) since
different AP's sometimes behave slightly differently with different
hardware as was the case with my PSP. I only mentioned my PSP because it
seemed unusual
My experience has been that it works well with some wifi access
points/routers and locks up with others. The router I use at home is a
Belkin F5D8236-4
(http://www.belkin.com/IWCatProductPage.process?Product_Id=459569) and I
have frequent problems when connected to it, while I don't recall having
Well, i will try to describe what happens to me, even with my poor
english. Apologies if you can't understand what i mean.
- Ubuntu 11.10 or 12.04 beta 2 and daily releases.
- Kernel 3 and 3.2
- The indicator in HP 425 isn't recognised. Even if the wireless connection
works normally, -except for
I just found that I actually have a machine with BCM4313 wireless that I
hadn't been using. I'm currently trying to reproduce the issue. If
anyone has suggestions about circumstances that are likely to trigger
the problem (e.g. idle connection, heavy network traffic, low signal,
etc.) I'd love to
Probably not helpful to you but it just happens for me. To be honest,
I've been testing by downloading a Ubuntu DVD ISO and at some point it
will happen but I don't have to be downloading for it to happen, that's
the thing. I've been trying to find a pattern but I've not found
anything consistent
I wasn't joking but upstream they are not interested. I'm offering a
developer the hardware for free to help fix this for others in the
future, that's all.
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In Ubuntu 11.04 this bug is not present, but in 11.10 and 12.04 is a
hard problem.
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Title:
Broadcom BCM4313 random AP disconnects and network
I've since replaced my card with an Intel based card so if it helps I'm
more than happy to donate the BCM4313 based card to anyone who wants to
work on it.
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Terry, that's a very sad joke. Anyway, i hope find a wireless card wich
works, because this bug doesn't look well...
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Title:
Broadcom BCM4313
Hm, still looking for a pattern and while I was at it I have tried the
cw-3.3 and this results in an connectivity issue and stays like it until
a reboot. No messages at all, just nothing. I can't get out of this by
reconnecting this time either.There's no longer a crash with this
version so there
Terry: Do you get the warning mentioned in the other bug reports? Does
the warning always coincide with the network problems?
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Title:
Broadcom
** Changed in: linux (Ubuntu)
Status: Triaged = Incomplete
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Title:
Broadcom BCM4313 random AP disconnects and network hang
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When the problems start I tail kern.log and after a minute or so I'll
see the crash message with backtrace. The A-MPDU messages I posted
initially are quite normal apparently.
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So you have tested the patch from the fedora bug, brcm80211: smac: fix
endless retry of A-MPDU transmissions, and found that it didn't help,
correct? Really I think that's only intended to be a fix for the warning
that's triggered in brcms_c_wait_for_tx_completion(), which seems like
it was a
Yup, it didn't fix the problem I was having but it fixed what the patch
described and the A-MPDU messages were more frequent, I remember that
much.
Normally the messages will appear one after the other at different
intervals but I'm not flooded with them. What I will do is collect logs
prior to
I've attached the log I captured between the time I'm downloading a
Ubuntu DVD and after the network connection came back to life again.
Channel seemed to stay at 6 in this case which is pretty noisy according
to the android wifi analyser app.
Connection resumes normally again at: Mar 9 18:03:06
Unless I missed it, I've never seen the following message before. I get about
20 of these within the space of a second.
Mar 9 18:25:19 bert kernel: [ 2131.803393] ieee80211 phy0:
brcms_c_prec_enq_head: No where to go, prec == 4
Network seems unresponsive around this time too.
Channel
I'm not sure if this will help with this issue but I came across this:
https://bugzilla.redhat.com/show_bug.cgi?id=787649
which is the exact same issue I'm having. There is a patch but nobody can
confirm it has been fixed. I've also had a go myself but it was a real pain to
find a working
apport information
** Tags added: apport-collected staging
** Description changed:
Using the brcmsmac driver I'm experiencing random AP disconnects and
network hangs. I can usually come out of a hang by reconnecting using
the network manager. I'm unable to try the STA driver as this
This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report at bugzilla.kernel.org [1]? That will allow the upstream
Developers to examine the issue, and may provide a quicker resolution to
the bug.
If you
** Bug watch added: Linux Kernel Bug Tracker #42840
http://bugzilla.kernel.org/show_bug.cgi?id=42840
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=42840
Importance: Unknown
Status: Unknown
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** Changed in: linux
Status: Unknown = Confirmed
** Changed in: linux
Importance: Unknown = Medium
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Title:
Broadcom BCM4313 random AP
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
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Title:
Broadcom BCM4313 random AP disconnects and network hang
To manage
** Package changed: ubuntu = linux (Ubuntu)
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Title:
Broadcom BCM4313 random AP disconnects and network hang
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unfortunately I'm unable to submit any log files using apport-collect
because it is crashing due to a bug of its own. Are there any logs I can
send over manually that would be useful?
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Would it be possible for you to test the latest upstream kernel? It
will allow additional upstream developers to examine the issue. Refer to
https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.3 kernel[1] (Not a kernel in the daily directory). Once you've
tested the upstream
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags removed: needs-upstream-testing
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Thank you for taking the time to file a bug report on this issue.
However, given the number of bugs that the Kernel Team receives during
any development cycle it is impossible for us to review them all.
Therefore, we occasionally resort to using automated bots to request
further testing. This is
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
Broadcom BCM4313 random AP disconnects and network hang
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