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patches: keep a SEEQ transmit frame the channel ran dry in #13

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steigr merged 1 commit from fix/seeq-tx-partial into main 2026-11-03 08:53:26 +00:00
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steigr commented 2026-11-03 08:53:26 +00:00
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Patch 0011. The SEEQ transmit poll could catch a descriptor chain the driver was still extending, read part of a frame, find the channel dry and drop what it had read; the rest then went out as a frame of its own, starting in the middle of a packet. passt learns the guest's address from a frame's source field, so it learned garbage (the logs showed ASCII from an ssh key-exchange as MACs), sent to it, and the guest dropped the replies: connections through passt stalled or were reset, on a timing-dependent basis. The bytes are now kept for the next poll. The series applies on IRIS_BASE and cargo test seeq passes, including a new test for this case.

🤖 Generated with Claude Code

Patch 0011. The SEEQ transmit poll could catch a descriptor chain the driver was still extending, read part of a frame, find the channel dry and drop what it had read; the rest then went out as a frame of its own, starting in the middle of a packet. passt learns the guest's address from a frame's source field, so it learned garbage (the logs showed ASCII from an ssh key-exchange as MACs), sent to it, and the guest dropped the replies: connections through passt stalled or were reset, on a timing-dependent basis. The bytes are now kept for the next poll. The series applies on IRIS_BASE and cargo test seeq passes, including a new test for this case. 🤖 Generated with [Claude Code](https://claude.com/claude-code)
patches: keep a SEEQ transmit frame the channel ran dry in (0011)
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6697b9eef4
 
With passt as the peer, the cut-off frame's remainder went out as a frame of its own: a garbage
source address that passt learned and sent to, so connections through it stalled or reset.
The series applies on IRIS_BASE; cargo test seeq passes, with a test for the case.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
steigr merged commit 6697b9eef4 into main 2026-11-03 08:53:26 +00:00
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