Search Linux Wireless

RE: Lots of trans->state != IWL_TRANS_FW_ALIVE warnings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> 
> >
> > On Fedora (3.5 and 3.6 kernels) we are currently overwhelmed by tons
> > of iwlwifi warnings at iwlagn_mac_flush() and iwl_dvm_send_cmd()
> reports.
> >
> > iwlagn_mac_flush warning is triggered at:
> >
> > static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) {
> >         WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
> >                   "%s bad state = %d", __func__, trans->state);
> >
> >         return trans->ops->wait_tx_queue_empty(trans);
> > }
> >
> > We have 2 instances of this issue:
> >
> > - started at ieee80211_scan()
> > https://bugzilla.redhat.com/show_bug.cgi?id=866013
> > - started at ieee80211_sta_monitor_work()
> > https://bugzilla.redhat.com/show_bug.cgi?id=861753
> >
> > iwl_dvm_send_cmd is triggered at:
> >
> > static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
> >                                 struct iwl_host_cmd *cmd) {
> >         WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
> >                   "%s bad state = %d", __func__, trans->state);
> >
> >         return trans->ops->send_cmd(trans, cmd); }
> >
> > And have 3 instances:
> >
> > - started at ieee80211_set_disassoc()
> > https://bugzilla.redhat.com/show_bug.cgi?id=861599
> > - started at ieee80211_restart_work()
> > https://bugzilla.redhat.com/show_bug.cgi?id=865072
> > - started at ieee80211_auth()
> > https://bugzilla.redhat.com/show_bug.cgi?id=866015
> >
> 
> I glanced at the bugs and I can only see the trace dump. I am pretty sure
> there is an issue before the dump - fw assert of something like that. Can it be
> possible to get the full log?
> 

Can you ask people to try the attached patch?
This will let us know where the fw is brought down.

> > Can those be fixed in some reasonable time ?
> >
> > I'm not sure if they are related with some user visible problem like
> > disconnects.
> 
> Well... if the fw isn't ALIVE then something bad happens, bad enough to get
> disconnected, yes.
> >
> > I'll probably revert f0d120af8f55649571c681f49c920b0822050fa5
> > on Fedora, just to stop getting those warnings ...
> >
> 
> You will stop get the warnings, but that of course won't solve anything else.

---------------------------------------------------------------------
Intel Israel (74) Limited

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

Attachment: 0001-iwlwifi-print-state-changes-in-transport-layer.patch
Description: 0001-iwlwifi-print-state-changes-in-transport-layer.patch


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux