* Pavel Matěja: > The strange means they appear only on 2 servers out of 6. > Servers with Xeon E5606 and Pentium G6950 were running fine while Xeon > E3-1220 v6 produced crashes. > It did not matter if the host Debian was Stretch or Buster.
Do you see crashes on stretch as well? What does the backtrace look like there? > SSLv3 and TLS code path looked quite distinct to cause the same problem. > Based on info that SEGFAULTs are related to memory allocation in new > libc and CPU performance I found > http://188.8.131.52/patch/17499/ > where Wilco Dijkstra discuss some problems with tcache which "leads to > various crashes in benchtests" I was under the impression that this problem only occurs if one of the tunables has an out-of-bounds value. Do you set any tunables?