Markus Schiltknecht wrote: > Hello Alvaro, > > yeah, thanks, that's it. postgresql.conf had: > > max_stack_depth = 8192 # min 100, size in KB > > I don't know who put it at 8192. According to the fine manual at [1], it > should be set to something below 'ulimit -s', which gives 8192 on the > machine in question. I've now set it to 7000 and I also get a warning > instead of a SEGFAULT. I notice it crashes with max_stack_depth set to 8173, but correctly detects the error with max_stack_depth set to 8172. The doc suggests a safety margin of "a megabyte or so", so I think we are conforming to our docs here. Tom recently added a check for getrlimit(RLIMIT_STACK), but I don't know if that considered the "megabyte or so". *peeks the code* Yeah, there's a 512 kb "daylight", but there's also an absolute maximum of 2MB. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support