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- Fix tcp fastopen failure when disabled, try normal connect instead.
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@ -1,3 +1,6 @@
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1 September 2021: Wouter
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- Fix tcp fastopen failure when disabled, try normal connect instead.
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27 August 2021: Wouter
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- Fix #533: Negative responses get cached even when setting
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cache-max-negative-ttl: 1
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@ -1863,13 +1863,22 @@ comm_point_tcp_handle_write(int fd, struct comm_point* c)
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if(errno == EINTR || errno == EAGAIN)
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return 1;
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/* Not handling EISCONN here as shouldn't ever hit that case.*/
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if(errno != EPIPE && errno != 0 && verbosity < 2)
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return 0; /* silence lots of chatter in the logs */
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if(errno != EPIPE && errno != 0) {
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if(errno != EPIPE
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#ifdef EOPNOTSUPP
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/* if /proc/sys/net/ipv4/tcp_fastopen is
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* disabled on Linux, sendmsg may return
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* 'Operation not supported', if so
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* fallthrough to ordinary connect. */
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&& errno != EOPNOTSUPP
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#endif
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&& errno != 0) {
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if(verbosity < 2)
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return 0; /* silence lots of chatter in the logs */
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log_err_addr("tcp sendmsg", strerror(errno),
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&c->repinfo.addr, c->repinfo.addrlen);
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return 0;
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}
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verbose(VERB_ALGO, "tcp sendmsg for fastopen failed (with %s), try normal connect", strerror(errno));
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/* fallthrough to nonFASTOPEN
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* (MSG_FASTOPEN on Linux 3 produces EPIPE)
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* we need to perform connect() */
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