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Diff for /www/67.html between version 1.13 and 1.14

version 1.13, 2020/05/06 13:22:10

version 1.14, 2020/05/06 13:26:20

Line 513

<li>IEEE 802.11 wireless stack improvements and bugfixes:

<ul>

<li>Fixed an automatic Tx rate control issue in <a

href="https://man.openbsd.org/iwn">iwn(4)</a>.

<li>Fixed a bug where outstanding frames on the <a

href="https://man.openbsd.org/iwn">iwn(4)</a> aggregation queue

interfere with roaming to another AP.

interfered with roaming to another AP.

<li>Implemented a workaround for missing Tx completion interrupts

in <a href="https://man.openbsd.org/iwm">iwm(4)</a> which could lead

to failed decisions to roam to other APs.

to failures when roaming to another AP.

<li>Reenabled firmware-based Tx retries at lower rates for <a

<li>Re-enabled firmware-based Tx retries at lower rates for <a

href="https://man.openbsd.org/iwm">iwm(4)</a>, reducing packet loss.

<li>Fixed an automatic Tx rate control issue in <a

<li>Fixed automatic Tx rate control issues in <a

href="https://man.openbsd.org/iwm">iwm(4)</a> and <a

href="https://man.openbsd.org/iwm">iwn(4)</a>, and <a

href="https://man.openbsd.org/iwx">iwx(4)</a>.

href="https://man.openbsd.org/iwm">iwm(4)</a>.

<li>Worked around a race condition in <a

<li>Fixed a race condition in <a

href="https://man.openbsd.org/iwm">iwm(4)</a> Rx interrupt handling.

<li>Added support for active scan to <a

<li>Added support for active scanning to <a

href="https://man.openbsd.org/bwfm">bwfm(4)</a>.

<li>Increased throughput of the ifq pressure drop mechanism for <a

<li>Fix <a href="https://man.openbsd.org/bwfm">bwfm(4)</a> behavior which

href="https://man.openbsd.org/bwfm">bwfm(4)</a>.

could trigger the ifq pressure drop mechanism under moderate load.

<li>Improved error handling for <a

href="https://man.openbsd.org/bwfm">bwfm(4)</a> connection attempts.

<li>Fixed the <a

href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> "media:" line

for 11n wifi interfaces during and after a background scan.

displayed during and after a background scan in 11n mode.

<li>Fixed an mbuf corruption issue in net80211 hostap mode when overlarge SSIDs are used.

<li>Fix kernel crashes in net802111 hostap mode due to mbuf corruption

<li>Stopped switching to new APs found during background scans

which occurred if a relatively long SSID was configured.

with RSSI levels which will also trigger background scans, helping to

<li>Avoid repeated repeated switching between APs in areas where APs

prevent repeated switching in areas where APs are tuned for low

are tuned for low transmit range.

transmit range.

<li>Increased the net80211 node cache size to allow more APs to be viewed during scans.

<li>Increased the net80211 node cache size.

<li>Reduced stalls on packet loss in 11n mode by improving net80211 handling

<li>Reduced stalling with lossy wifi by improving net80211

of the Rx block ack sequence number window and queue.

handling of the Rx block ack sequence number window and queue.

<li>Prevented a crash in ieee80211_node2req() which could be

triggered by an <a href="https://man.openbsd.org/ioctl">ioctl(2)</a>

if the driver had not yet initialized the channel map.

<li>Stopped connecting to available open wifi networks when an

<li>Stop connecting to any available unencrypted wifi networks when an

interface is marked up. This behavior must now be explicitly enabled

with <code><a href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> join

""</code>.

<li>Lowered the priority of APs which fail to connect in the <a

<li>Improved automatic switching between wifi networks by lowering the priority

href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> join list,

of networks in the <a

allowing switching wifi networks by moving between them without having

href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> join list which

to down/up the interface or suspend/resume.

fail to connect.

<li>Triggered a background scan when root runs the <a

<li>A background scan is now triggered when root runs the <a

href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> scan command,

href="https://man.openbsd.org/ifconfig">ifconfig(8)</a> scan command.

updating the list of cached APs for future scans and forcing a search

This updates the list of cached APs displayed by the scan command and

for a better AP to roam to.

forces a search for a better AP to roam to.

<li>Raised net80211's "beacon miss" threshold to avoid frequent

reconnects to APs suffering packet loss due to distance.

reconnects under conditions which cause loss of beacons.

<li>Made background scans less frequent when choosing the same AP.

<li>Made background scans less frequent if they keep choosing the same AP.

</ul>

<li>Generic network stack improvements and bugfixes: