#12144 NORM Not Tri: [CL4]The test /waln twice and screen full in SSID message.
Zarro Boogs per Child
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Tue Oct 16 02:52:27 EDT 2012
#12144: [CL4]The test /waln twice and screen full in SSID message.
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Reporter: garysu | Owner: Quozl
Type: defect | Status: new
Priority: normal | Milestone: Not Triaged
Component: ofw - open firmware | Version: not specified
Resolution: | Keywords:
Next_action: design | Verified: 0
Deployment_affected: | Blockedby:
Blocking: |
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Changes (by Quozl):
* next_action: never set => design
Comment:
Thanks, your scan result packet causes the same problem here.
The printing of the display results has read beyond the buffer, and the
result is unpredictable. This is a defect in Open Firmware. I'll try to
fix it so that it does not read beyond the buffer.
The maximum packet buffer size is 1600 bytes, and the scan result packet
was truncated to this size. A following packet may hold the remainder of
the scan result, or the module may have wanted to DMA more than 1600
bytes, I'm not sure which.
It is the complexity of the data structures sent by the access points that
combines with the firmware defect to cause this problem. The order in
which the beacons are received also affects the problem. The data
structures can be seen with a modified scan;
{{{
ok dev /supplicant patch .ie .ie-short .ap-ssid dend scan-wifi
}}}
This may generate incorrect output for the same reason.
--
Ticket URL: <http://dev.laptop.org/ticket/12144#comment:8>
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