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Question about protected payloads

From: Joan Lledó
Subject: Question about protected payloads
Date: Sat, 21 Jul 2018 10:48:07 +0200

Hello Hurd,

I'm blocked with a bug in the lwIP translator that's driving me crazy:
under some particular circumstances, calling select() over two ports
results on only one of these io_select RPCs being received by the
translator. The other one is returned to glibc as EOPNOTSUPP.

I debugged enough to identify the source of this errno at
ports_manage_port_operations_multithread() [1], particularly, the
problems seems to be the bucket passed to
ports_manage_port_operations_multithread() not matching the one inside
the payload.

Anyone has a hint on what could be happening here? I'm lost :(

Reproducing this bug is easy: just install the liblwip0 package and
try to open a ssh connection to our lwip translator.


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