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From bugzi...@apache.org
Subject [Bug 61616] mod_proxy_connect: stall and connection loss on bi-directional traffic
Date Sun, 15 Oct 2017 10:04:52 GMT
https://bz.apache.org/bugzilla/show_bug.cgi?id=61616

--- Comment #8 from Carsten Wolff <carsten@wolffcarsten.de> ---
(In reply to Yann Ylavic from comment #7)
> We have to stop reading on the other side when writing blocks on one side.
> How does this new version work?

Not better, I'm afraid:

Thread 2 (Thread 0x7f534bfff700 (LWP 31402)):
#0  0x00007f5354d316ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f5355232088 in apr_poll () from
target:/usr/lib/x86_64-linux-gnu/libapr-1.so.0
#2  0x000055df6ab6c17d in send_brigade_blocking (c=0x7f53559b6a98,
bytes_written=0x7f53559b6fe0, bb=0x7f53559b3ee0, s=0x7f53559b3c48) at
core_filters.c:747
#3  ap_core_output_filter (f=0x7f53559b6e70, new_bb=0x7f53559b3ee0) at
core_filters.c:542
#4  0x00007f5351d60da7 in ap_proxy_transfer_between_connections
(r=r@entry=0x7f53559b20a0, c_i=0x7f53559b6338, c_o=0x7f53559b6a98,
bb_i=<optimized out>, bb_o=0x7f53559b3ee0, name=name@entry=0x7f5351b49cee
"client", 
    sent=0x0, bsize=8192, after=1) at proxy_util.c:3839
#5  0x00007f5351b495d9 in proxy_connect_handler (r=0x7f53559b20a0,
worker=<optimized out>, conf=<optimized out>, url=<optimized out>,
proxyname=<optimized out>, proxyport=<optimized out>) at
mod_proxy_connect.c:468

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