Hi, So I follow following instructions to setup remap on a new pfinet instance and debug curl testsuite 546:
``` # Setup the translator pfinet which is going to be debugged settrans -fgaPc /tmp/2 /usr/bin/env LD_LIBRARY_PATH=/usr/lib/debug /home/1speaker/hurd/build/pfinet/pfinet # Open a new window in tmux using Ctrl+B # Attach gdb to the pfinet translator in the new window gdb /home/1speaker/hurd/build/pfinet/pfinet --pid=<PID> # Open a new window in tmux using Ctrl+B # Enter the environment where /servers/socket/2 is replaced by /tmp/2 remap /servers/socket/2 /tmp/2 -- bash # Start the debugging of curl testsuite 546 cd $(curl_source)/tests; ./runtests.pl -g 546 # Happy Debugging Time! ``` The program './runtests.pl -g 546' stopped at [0] several times before the test is really running, so I think some preparations involved io_select_common. However, after the test is running, I set a breakpoint at [1](it's like playing pingpong between two gdbs :-)). The test still stops at [0] several times, so I think it's quite hard to find which EINTR caused the failure. [0]: https://git.savannah.gnu.org/cgit/hurd/hurd.git/tree/pfinet/io-ops.c#n298 [1]: https://github.com/curl/curl/blob/master/tests/libtest/lib533.c#L100 Best, Zhaoming
