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From Jim Jagielski <...@apache.org>
Subject Re: Startup crash for trunk on Solaris after proxy refactoring
Date Mon, 17 Jan 2011 18:30:37 GMT

On Jan 17, 2011, at 12:59 PM, Rainer Jung wrote:

> On 17.01.2011 15:45, Rainer Jung wrote:
>> Hi,
>> 
>> I get a crash on Solaris Sparc during startup in the test suite after
>> the proxy refactoring. Since it is a "Bus error" I wildly guess the root
>> cause is an alignment issue in the shared memory. Sparc ist sensible to
>> that and the only other Bus error or httpd I remember was wrong
>> alignment in shm for mod_ssl shmcb (long ago).
> 
> In addition to the fix in slotmem (see previous mail) I suggest hardening the balancer
against future crashes by also aligning the slot data at 8 byte boundaries (more precisely
the APR default alignment):
> 
> http://people.apache.org/~rjung/patches/mod_proxy_alignment.patch
> 

Untested, but +1 for better alignment for slotmem in gen and
how proxy uses it.



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