Following up on my earlier post about being unable to login...  I'm running
NetBSD-1.5_ALPHA2 on an Alpha DS20E which has 2560 MB (2.5 GB) of memory.

/usr/bin/login is getting a SIGSEGV in a setrlimit system call:

   [...snip...]
   346 login.real RET   read 290/0x122
   346 login.real CALL  close(0x3)
   346 login.real RET   close 0
   346 login.real CALL  chown(0x160eac6a8,0,0x4)
   346 login.real NAMI  "/dev/console"
   346 login.real RET   chown 0
   346 login.real CALL  open(0x160224d4d,0,0x1b6)
   346 login.real NAMI  "/etc/ttyaction"
   346 login.real RET   open -1 errno 2 No such file or directory
   346 login.real CALL  __lstat13(0x16022505d,0x1fffff510)
   346 login.real NAMI  "/etc/login.conf"
   346 login.real RET   __lstat13 -1 errno 2 No such file or directory
   346 login.real CALL  getrlimit(0,0x1fffff5a0)
   346 login.real RET   getrlimit 0
   346 login.real CALL  setrlimit(0,0x1fffff5b0)
   346 login.real RET   setrlimit 0
   346 login.real CALL  getrlimit(0x1,0x1fffff5a0)
   346 login.real RET   getrlimit 0
   346 login.real CALL  setrlimit(0x1,0x1fffff5b0)
   346 login.real RET   setrlimit 0
   346 login.real CALL  getrlimit(0x2,0x1fffff5a0)
   346 login.real RET   getrlimit 0
   346 login.real CALL  setrlimit(0x2,0x1fffff5b0)
   346 login.real RET   setrlimit 0
   346 login.real CALL  getrlimit(0x3,0x1fffff5a0)
   346 login.real RET   getrlimit 0
   346 login.real CALL  setrlimit(0x3,0x1fffff5b0)
   346 login.real RET   setrlimit 0
   346 login.real CALL  getrlimit(0x5,0x1fffff5a0)
   346 login.real RET   getrlimit 0
   346 login.real CALL  setrlimit(0x5,0x1fffff5b0)
   346 login.real RET   setrlimit -1 errno 22 Invalid argument
   346 login.real PSIG  SIGSEGV SIG_DFL

the fifth setrlimit is the fifth one from this array in
src/lib/libutil/login_cap.c: 

} r_list[] = {
	{ RLIMIT_CPU,		CTIME, "cputime", },
	{ RLIMIT_FSIZE,		CSIZE, "filesize", },
	{ RLIMIT_DATA,		CSIZE, "datasize", },
	{ RLIMIT_STACK,		CSIZE, "stacksize", },
	{ RLIMIT_RSS,		CSIZE, "memoryuse", },
	{ RLIMIT_MEMLOCK,	CSIZE, "memorylocked", },
	{ RLIMIT_NPROC,		CNUMB, "maxproc", },
	{ RLIMIT_NOFILE,	CNUMB, "openfiles", },
	{ RLIMIT_CORE,		CSIZE, "coredumpsize", },
	{ -1, 0, 0 }
};

ulimit -a at the single-user shell shows this:

   # ulimit -a
   time(seconds)        unlimited
   file(blocks)         unlimited
   data(kbytes)         131072
   stack(kbytes)        2048
   coredump(blocks)     unlimited
   memory(kbytes)       2424352
   locked memory(kbytes) -589984
   process(processes)   80
   nofiles(descriptors) 64


I put root in class foo and created a /etc/login.conf file with this
one line in it:

   foo:memoryuse=512m:memorylocked=64m:

and now I'm able to login as root after going multi-user.

I set the memorylocked because the default value was printing out as
negative above.  I'm not sure if it was also needed.  I've not
experimented with how big of a limit I can get away with for these
rlimits.

I first guessed that the fields in struct rusage were ints and
overflowing 2^31, but I just peeked in <sys/resource.h> and see "long"
everywhere I think it should be.  So I'm not sure why I'm losing like
this.

Am I the first to try NetBSD (or NetBSD-1.5_ALPHA2) with this much
memory?  I would think so given how many things I've tripped over in
this install.  IIRC, a DS20E could have as much as 8 GB stuffed into it.

			-Tim Shepard
			 shep@lcs.mit.edu