William San Filippo created MYNEWT-119:
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Summary: Nimble stack crashing if PHY receives a PDU that is 257
bytes long.
Key: MYNEWT-119
URL: https://issues.apache.org/jira/browse/MYNEWT-119
Project: Mynewt
Issue Type: Bug
Components: Nimble
Affects Versions: v0_8_0_beta1
Reporter: William San Filippo
Assignee: William San Filippo
Priority: Blocker
Fix For: v0_8_0_beta1
There is a bug in the code which will cause the device to crash if it receives
a mbuf that is too large. Unfortunately I dont have a debug output of the crash
but we could obtain one if we think it is necessary. Running the un-fixed code
in a noisy environment with lots of simultaneous connections should reproduce
it eventually.
This problem was caused when we moved the controller code to use msys mbufs.
The buffer was not sized properly as the PHY still needs a flat buffer to
receive into and since the PHY currently uses mbufs, these mbufs need to
accommodate at least 257 bytes of data (they only had 256 bytes).
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