Andrew Gillham wrote:
> Running mysqld under gdb didn't help, I ended up panic'ing the box after
> doing 'kill -ABRT' on the mysql process, and then 'quit' in gdb.
> The panic:
> login: uvm_fault(0xe34a53c0, 0, 0, 1) -> 0xe
> kernel: page fault trap, code=0
> Stopped in pid 1772.1 (gdb) at  netbsd:kpsignal2+0x11b: testl   
> %eax,0(%ebx,%edx
> ,4)
> db{0}> tr
> kpsignal2(e3e879cc,e3f03e64,1,e3e87d0c,0) at netbsd:kpsignal2+0x11b
> psignal1(e3e879cc,1,1,e3e879cc,0) at netbsd:psignal1+0x29
> orphanpg(e34df140,0,e3f03eec,c035b593,c076afa8) at netbsd:orphanpg+0x33
> fixjobc(e3e87d0c,e34df100,0,e34a2fd8,0) at netbsd:fixjobc+0x76
> exit1(e34a8e58,0,0,0,e3f03f5c) at netbsd:exit1+0x13f
> sys_exit(e34a8e58,e3f03f64,e3f03f5c,1,7) at netbsd:sys_exit+0x23
> syscall_plain(e3f03fa8,1f,1f,821001f,bfbf001f) at netbsd:syscall_plain+0x173
> db{0}>

At least this part of the problem should be fixed with
src/sys/kern_sig.c rev. 1.173. Can you confirm whether or not
you can repeat the problem with updated kernel?

Jaromir 
-- 
Jaromir Dolecek <jdolecek@NetBSD.org>            http://www.NetBSD.cz/
-=- We should be mindful of the potential goal, but as the tantric    -=-
-=- Buddhist masters say, ``You may notice during meditation that you -=-
-=- sometimes levitate or glow.   Do not let this distract you.''     -=-