[Varnish] #1576: default pcre_match_limit_recursion and thread_pool_stack dont match - varnishd child process crashes with segfault error 6 in libpcre.so.3.13.1

Varnish varnish-bugs at varnish-cache.org
Wed Sep 17 16:09:20 CEST 2014


#1576: default pcre_match_limit_recursion and thread_pool_stack dont match -
varnishd child process crashes with segfault error 6 in libpcre.so.3.13.1
----------------------+--------------------
 Reporter:  abdi      |       Owner:  phk
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:
Component:  varnishd  |     Version:  4.0.1
 Severity:  normal    |  Resolution:
 Keywords:            |
----------------------+--------------------
Changes (by slink):

 * owner:  fgsch => phk
 * status:  assigned => new


Comment:

 decision from [[VDD14Q3]]
 * snapshot stack base pointer
 * determine space left on stack
 * make pcre recursion limit dynamic
 * log advice on stacksize if reaching limit
 * `pcre_match_limit_recursion` becomes a max

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1576#comment:13>
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