On Wed, Oct 29, 2003 at 11:37:56AM +0100, "Branko F. Gra?nar" wrote: > Hi. > > FreeBSD 5.1-p10 (and also possible other 5.1-pX version) can be remotely > locked up if the following criteria is met: > > + apache2 has mod_ssl loaded and enabled > + apache2 has the following configuration directives set to the > following values: > > SSLMutex sem > SSLSessionCache shm:/some/file(1048576) > > + client connects via SSL/TLS to apache fast enough. > > If all conditions above are satisfied except the last one, then lockup > doesn't happen. > > I tested on three 5.1-p10 machines (SMP, uniprocessor, uniprocessor with > hypterthreading) with JMeter 1.9.1. > > It is possible lockup machine with 100 requests (1 concurrent request) > in 1-3 seconds. > > If SSLMutex is set to file:/path/somewhere and SSLSessionCache is set to > dbm:/some/dbm lockup does not accour. > > Linux 2.4.22 is not affected by this issue. > > Details:
What kernel configuration? What hardware? Kris
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