Fwd:

Fwd:

[Pedram Navid]

Hello,

I'd like to report a bug I have not been able to find elsewhere. I am on
a fresh Arch install with linux 3.0.1-1, using the brcmsmac module.
Initially, the wireless works for a few days. At some point, it will
stop, outputing the following error repeatedly:

Aug  7 09:55:27 localhost kernel: [  825.796697] ieee80211 phy0: wl0:
fifo 0: descriptor error
Aug  7 09:55:27 localhost kernel: [  825.796713] ieee80211 phy0: wl0:
fatal error, re-initializing

I can rmmod brcmsmac, reboot, shutdown, give it a few days, and start
over and it will sometimes work. Other times, it will persist with the
fifo errors. Please let me know you need additional log files. I had
this problem since 2.6.38 and reinstalled Arch twice, thinking it was
something with my setup that was done incorrectly but haven't been
able to figure it out. I can't find another case of this error on the
internet.

#    lspci -vnn | grep 14e4
05:00.0 Network controller [0280]: Broadcom Corporation
802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
       Subsystem: Broadcom Corporation Device [14e4:0510]

 #  lsmod  | grep brc
brcmsmac              594624  0
brcmutil                6563  1 brcmsmac
mac80211              215605  1 brcmsmac
cfg80211              160516  2 brcmsmac,mac80211
crc_ccitt               1331  1 brcmsmac

Thank you
Pedram

Re: brcmsmac: fifo 0: descriptor error

[Ali Bahar]

Hi Pedram,

you must use a meaningful Subject-line for your email.
Hopefully, this'll attract the attention of the couple of Broadcom guys
who are on this list.

Also,


On Wed, Aug 10, 2011 at 06:48:45PM -0400, Pedram Navid wrote:
> Hello,
> 
> I'd like to report a bug I have not been able to find elsewhere. I am on
> a fresh Arch install with linux 3.0.1-1, using the brcmsmac module.
> Initially, the wireless works for a few days. At some point, it will
> stop, outputing the following error repeatedly:
> 
> Aug  7 09:55:27 localhost kernel: [  825.796697] ieee80211 phy0: wl0:
> fifo 0: descriptor error
> Aug  7 09:55:27 localhost kernel: [  825.796713] ieee80211 phy0: wl0:
> fatal error, re-initializing

You may wish to note which of these lines repeat. Do both repeat, or
only the "re-initializing" line? (It may be easier to just paste a few
lines into your mail.)

later,
ali

 
> I can rmmod brcmsmac, reboot, shutdown, give it a few days, and start
> over and it will sometimes work. Other times, it will persist with the
> fifo errors. Please let me know you need additional log files. I had
> this problem since 2.6.38 and reinstalled Arch twice, thinking it was
> something with my setup that was done incorrectly but haven't been
> able to figure it out. I can't find another case of this error on the
> internet.
> 
> #    lspci -vnn | grep 14e4
> 05:00.0 Network controller [0280]: Broadcom Corporation
> 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
>        Subsystem: Broadcom Corporation Device [14e4:0510]
> 
>  #  lsmod  | grep brc
> brcmsmac              594624  0
> brcmutil                6563  1 brcmsmac
> mac80211              215605  1 brcmsmac
> cfg80211              160516  2 brcmsmac,mac80211
> crc_ccitt               1331  1 brcmsmac
> 
> Thank you
> Pedram

Re: brcmsmac: fifo 0: descriptor error

[Pedram Navid]

Thank you Ali, I apologize, this is my first time reporting a bug
through a mailing list.

Both lines repeat almost every second until I either run ifconfig
wlan0 down or remove the module completely. I have since downgraded to
2.6.39 and am using the wl module and don't seem to have any problems.
I still have the 3.0 Kernel available if anyone would like me to test
further.

On Wed, Aug 10, 2011 at 10:15 PM, Ali Bahar <ali@internetdog.org> wrote:
> Hi Pedram,
>
> you must use a meaningful Subject-line for your email.
> Hopefully, this'll attract the attention of the couple of Broadcom guys
> who are on this list.
>
> Also,
>
>
> On Wed, Aug 10, 2011 at 06:48:45PM -0400, Pedram Navid wrote:
>> Hello,
>>
>> I'd like to report a bug I have not been able to find elsewhere. I am on
>> a fresh Arch install with linux 3.0.1-1, using the brcmsmac module.
>> Initially, the wireless works for a few days. At some point, it will
>> stop, outputing the following error repeatedly:
>>
>> Aug  7 09:55:27 localhost kernel: [  825.796697] ieee80211 phy0: wl0:
>> fifo 0: descriptor error
>> Aug  7 09:55:27 localhost kernel: [  825.796713] ieee80211 phy0: wl0:
>> fatal error, re-initializing
>
> You may wish to note which of these lines repeat. Do both repeat, or
> only the "re-initializing" line? (It may be easier to just paste a few
> lines into your mail.)
>
> later,
> ali
>
>
>> I can rmmod brcmsmac, reboot, shutdown, give it a few days, and start
>> over and it will sometimes work. Other times, it will persist with the
>> fifo errors. Please let me know you need additional log files. I had
>> this problem since 2.6.38 and reinstalled Arch twice, thinking it was
>> something with my setup that was done incorrectly but haven't been
>> able to figure it out. I can't find another case of this error on the
>> internet.
>>
>> #    lspci -vnn | grep 14e4
>> 05:00.0 Network controller [0280]: Broadcom Corporation
>> 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
>>        Subsystem: Broadcom Corporation Device [14e4:0510]
>>
>>  #  lsmod  | grep brc
>> brcmsmac              594624  0
>> brcmutil                6563  1 brcmsmac
>> mac80211              215605  1 brcmsmac
>> cfg80211              160516  2 brcmsmac,mac80211
>> crc_ccitt               1331  1 brcmsmac
>>
>> Thank you
>> Pedram
>

Re: brcmsmac: fifo 0: descriptor error

[Henry Ptasinski]

On Thu, Aug 11, 2011 at 03:35:32AM -0700, Pedram Navid wrote:
> Thank you Ali, I apologize, this is my first time reporting a bug
> through a mailing list.
> 
> Both lines repeat almost every second until I either run ifconfig
> wlan0 down or remove the module completely. I have since downgraded to
> 2.6.39 and am using the wl module and don't seem to have any problems.
> I still have the 3.0 Kernel available if anyone would like me to test
> further.
> 
> On Wed, Aug 10, 2011 at 10:15 PM, Ali Bahar <ali@internetdog.org> wrote:
> > Hi Pedram,
> >
> > you must use a meaningful Subject-line for your email.
> > Hopefully, this'll attract the attention of the couple of Broadcom guys
> > who are on this list.
> >
> > Also,
> >
> >
> > On Wed, Aug 10, 2011 at 06:48:45PM -0400, Pedram Navid wrote:
> >> Hello,
> >>
> >> I'd like to report a bug I have not been able to find elsewhere. I am on
> >> a fresh Arch install with linux 3.0.1-1, using the brcmsmac module.
> >> Initially, the wireless works for a few days. At some point, it will
> >> stop, outputing the following error repeatedly:
> >>
> >> Aug  7 09:55:27 localhost kernel: [  825.796697] ieee80211 phy0: wl0:
> >> fifo 0: descriptor error
> >> Aug  7 09:55:27 localhost kernel: [  825.796713] ieee80211 phy0: wl0:
> >> fatal error, re-initializing
> >
> > You may wish to note which of these lines repeat. Do both repeat, or
> > only the "re-initializing" line? (It may be easier to just paste a few
> > lines into your mail.)
> >
> > later,
> > ali
> >
> >
> >> I can rmmod brcmsmac, reboot, shutdown, give it a few days, and start
> >> over and it will sometimes work. Other times, it will persist with the
> >> fifo errors. 

Just to be clear:  You can power off the machine, and immediately after
starting up again you see these error messages?

> >> Please let me know you need additional log files. I had
> >> this problem since 2.6.38 and reinstalled Arch twice, thinking it was
> >> something with my setup that was done incorrectly but haven't been
> >> able to figure it out. I can't find another case of this error on the
> >> internet.

Can you provide some details about the network setup where you see this issue
(band, channel, a/b/g/n, security enabled/disabled) and the host (cpu, 32- or
64-bit kernel).

> >>
> >> #    lspci -vnn | grep 14e4
> >> 05:00.0 Network controller [0280]: Broadcom Corporation
> >> 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
> >>        Subsystem: Broadcom Corporation Device [14e4:0510]
> >>
> >>  #  lsmod  | grep brc
> >> brcmsmac              594624  0
> >> brcmutil                6563  1 brcmsmac
> >> mac80211              215605  1 brcmsmac
> >> cfg80211              160516  2 brcmsmac,mac80211
> >> crc_ccitt               1331  1 brcmsmac

Can you provide the full output of lsmod?

Also, can you file this as a bug in bugzilla.kernel.org to make it easier for
us to track?  CC henryp@broadcom.com and rvossen@broadcom.com on the bug.

Thanks,
- Henry

Re: brcmsmac: fifo 0: descriptor error

[Pedram Navid]

Hi Henry,

I have filed this as bug 40972 along with the answers to your
questions: https://bugzilla.kernel.org/show_bug.cgi?id=40972

In short, yes, the error does appear immediately after a full
power-off shutdown as soon as I bring the interface up after loading
the module. Not always, but more often than not.

I am running 32-bit but have used 64bit prior. I reinstalled my system
thinking that it was a problem with 64-bit libraries. The full lsmod
is on the bug report.

I am currently running fine again. I will keep my laptop on throughout
the day in the hopes that it goes down. Let me know if you need
anything else.

Thanks so much
Pedram

On Thu, Aug 11, 2011 at 6:26 PM, Henry Ptasinski <henryp@broadcom.com> wrote:
> On Thu, Aug 11, 2011 at 03:35:32AM -0700, Pedram Navid wrote:
>> Thank you Ali, I apologize, this is my first time reporting a bug
>> through a mailing list.
>>
>> Both lines repeat almost every second until I either run ifconfig
>> wlan0 down or remove the module completely. I have since downgraded to
>> 2.6.39 and am using the wl module and don't seem to have any problems.
>> I still have the 3.0 Kernel available if anyone would like me to test
>> further.
>>
>> On Wed, Aug 10, 2011 at 10:15 PM, Ali Bahar <ali@internetdog.org> wrote:
>> > Hi Pedram,
>> >
>> > you must use a meaningful Subject-line for your email.
>> > Hopefully, this'll attract the attention of the couple of Broadcom guys
>> > who are on this list.
>> >
>> > Also,
>> >
>> >
>> > On Wed, Aug 10, 2011 at 06:48:45PM -0400, Pedram Navid wrote:
>> >> Hello,
>> >>
>> >> I'd like to report a bug I have not been able to find elsewhere. I am on
>> >> a fresh Arch install with linux 3.0.1-1, using the brcmsmac module.
>> >> Initially, the wireless works for a few days. At some point, it will
>> >> stop, outputing the following error repeatedly:
>> >>
>> >> Aug  7 09:55:27 localhost kernel: [  825.796697] ieee80211 phy0: wl0:
>> >> fifo 0: descriptor error
>> >> Aug  7 09:55:27 localhost kernel: [  825.796713] ieee80211 phy0: wl0:
>> >> fatal error, re-initializing
>> >
>> > You may wish to note which of these lines repeat. Do both repeat, or
>> > only the "re-initializing" line? (It may be easier to just paste a few
>> > lines into your mail.)
>> >
>> > later,
>> > ali
>> >
>> >
>> >> I can rmmod brcmsmac, reboot, shutdown, give it a few days, and start
>> >> over and it will sometimes work. Other times, it will persist with the
>> >> fifo errors.
>
> Just to be clear:  You can power off the machine, and immediately after
> starting up again you see these error messages?
>
>> >> Please let me know you need additional log files. I had
>> >> this problem since 2.6.38 and reinstalled Arch twice, thinking it was
>> >> something with my setup that was done incorrectly but haven't been
>> >> able to figure it out. I can't find another case of this error on the
>> >> internet.
>
> Can you provide some details about the network setup where you see this issue
> (band, channel, a/b/g/n, security enabled/disabled) and the host (cpu, 32- or
> 64-bit kernel).
>
>> >>
>> >> #    lspci -vnn | grep 14e4
>> >> 05:00.0 Network controller [0280]: Broadcom Corporation
>> >> 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
>> >>        Subsystem: Broadcom Corporation Device [14e4:0510]
>> >>
>> >>  #  lsmod  | grep brc
>> >> brcmsmac              594624  0
>> >> brcmutil                6563  1 brcmsmac
>> >> mac80211              215605  1 brcmsmac
>> >> cfg80211              160516  2 brcmsmac,mac80211
>> >> crc_ccitt               1331  1 brcmsmac
>
> Can you provide the full output of lsmod?
>
> Also, can you file this as a bug in bugzilla.kernel.org to make it easier for
> us to track?  CC henryp@broadcom.com and rvossen@broadcom.com on the bug.
>
> Thanks,
> - Henry
>
>
>

Re: brcmsmac: fifo 0: descriptor error

[Roland Vossen]

Hello Pedram,

Bugzilla seems to be AWOL today so lets continue the discussion by email.

I noticed this issue is still pending. It is weird that the problem 
persists between cold reboots (which points to a hardware error) but is 
also dependent on the kernel version in use (which points to a software 
error).

Would you happen to have additional cards to try ?

Can you email a log file containing the 'fifo 0: descriptor error' bug ?

Do you think that temperature has an effect on the bug occurring, does 
it make a difference if you let your machine cool down between reboots ?

I identified an issue today that gives the same error message, but that 
issue only occurs on 64 bit platforms, and you report that you also see 
it on 32 bit platforms.

Can you run a memory test on your system, e.g. one that tests the memory 
during an overnight test ? Reason is that the error message occurs 
because the DMA engine read invalid data from memory.

Thanks, Roland.

On 08/12/2011 02:33 AM, Pedram Navid wrote:
> Hi Henry,
>
> I have filed this as bug 40972 along with the answers to your
> questions: https://bugzilla.kernel.org/show_bug.cgi?id=40972
>
> In short, yes, the error does appear immediately after a full
> power-off shutdown as soon as I bring the interface up after loading
> the module. Not always, but more often than not.
>
> I am running 32-bit but have used 64bit prior. I reinstalled my system
> thinking that it was a problem with 64-bit libraries. The full lsmod
> is on the bug report.
>
> I am currently running fine again. I will keep my laptop on throughout
> the day in the hopes that it goes down. Let me know if you need
> anything else.
>
> Thanks so much
> Pedram