Dear all,
based on a suggestion of Emmanuel, I have now tried linux-next
to see how it improve on iwlagn hanging. (long threads)
Here are some results, based on 3.3.0-rc7-next-20120315
Genereal impression: much more stable, with some hiccups.
Details: After some suspend to ram and resume cycles it is getting
a bit bad again, with many of that (that is at the university network):
[ 6169.024075] tx session timer expired on tid 0
[ 6169.024124] Tx BA session stop requested for 00:24:c4:ab:bd:ef tid 0
[ 6169.044472] Stopping Tx BA session for 00:24:c4:ab:bd:ef tid 0
[ 6170.930940] Open BA session requested for 00:24:c4:ab:bd:ef tid 0
[ 6170.948299] activated addBA response timer on tid 0
[ 6170.948877] switched off addBA timer for tid 0
[ 6170.948883] Aggregation is on for tid 0
BUT: At least it resettles without connection breaking down completely.
That is a *big* step forward!
On the home network I see many of
[18392.488123] ieee80211 phy0: release an RX reorder frame due to timeout on earlier frames
but with some intermittend slow-downs it is working.
In both cases an ssh session to a remote computer did *not* break down,
which was permanently the case in former times (withlout linux-next)
In addition, there are some *very*interesting observations:
ALso I am pinging and everything works, iwconfig reports:
wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
I also saw some WARNINGs in the dmesg output:
[17987.181066] Call Trace:
[17987.181072] [<ffffffff8102b796>] warn_slowpath_common+0x83/0x9b
[17987.181075] [<ffffffff8102b7c8>] warn_slowpath_null+0x1a/0x1c
[17987.181082] [<ffffffffa0213fda>] iwl_send_lq_cmd+0x14a/0x246 [iwlwifi]
[17987.181090] [<ffffffffa0214480>] iwl_restore_stations+0x206/0x279 [iwlwifi]
[17987.181097] [<ffffffffa021c388>] iwlagn_commit_rxon+0x4b5/0x6a8 [iwlwifi]
[17987.181104] [<ffffffffa021cc51>] iwlagn_bss_info_changed+0x307/0x504 [iwlwifi]
[17987.181115] [<ffffffffa008c504>] ieee80211_bss_info_change_notify+0x179/0x1a3 [mac80211]
[17987.181127] [<ffffffffa00b54aa>] ieee80211_destroy_auth_data+0x50/0x75 [mac80211]
[17987.181138] [<ffffffffa00b84a6>] ieee80211_sta_work+0x9e/0x91d [mac80211]
...
----------------------------
But to repeat, the general feeling is much better, being able to have
a persistent ssh connection is a huge win!
Please let me know if you need any further testing, information, or
changes.
Best wishes
Norbert
------------------------------------------------------------------------
Norbert Preining preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan TeX Live & Debian Developer
DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
DITHERINGTON (n)
Sudden access to panic experienced by one who realises that he is
being drawn inexorably into a clabby (q.v.) conversation, i.e. one he
has no hope of enjoying, benefiting from or understanding.
--- Douglas Adams, The Meaning of Liff
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
