AVILA getting close!

[John-Mark Gurney]

Nathan Whitehorn wrote this message on Wed, Jun 18, 2014 at 16:09 -0700:
> 
> On 06/18/14 15:58, John-Mark Gurney wrote:
> >So, w/ the recent couple of patches that alc has provided, I no longer
> >receive kernel panics on my AVILA board!
> >
> >$ uname -a
> >FreeBSD avila.funkthat.com 11.0-CURRENT FreeBSD 11.0-CURRENT #27 
> >r267333:267349M: Wed Jun 11 09:57:58 PDT 2014     
> >jmg at carbon.funkthat.com:/usr/obj/arm.armeb/usr/src.avila/sys/AVILA  arm
> >$ uptime
> >12:15AM  up 1 day, 15 mins, 2 users, load averages: 0.13, 0.11, 0.08
> >
> >This survived a portsnap extract...  This is all over NFS...
> >
> >Though the issue that I'm now having is that some binaries (newsyslog)
> >and sometimes other binaries (awk, grep) core dump...
> >
> >I believe this is an issue w/ rtld, or related...  If I compile newsyslog
> >-static, it works fine...  Otherwise I get a SIGILL, and that is
> >because it jumps off into the weeds..  Though gdb on arm isn't very
> >useful..
> >
> >The trouble appears to be when resolving a symbol that hasn't been
> >called yet...  The trouble starts when newsyslog starts parsing a
> >line that isn't a comment line and tries to strdup it...  stepi'ing
> >has me go into
> >_rtld_bind_start ->
> >	_rtld_bind ->
> >		rlock_acquire ->
> >			thread_mask_set ->
> >				def_thread_set_flag (via function pointer)
> >			def_rlock_acquire ->
> >				atomic_add_acq_int
> >
> >Turning on rtld's debug doesn't tell me anything I didn't know already:
> >"memchr" in "libc.so.7" ==> 0x2017af30 in "libc.so.7"
> >"strdup" in "newsyslog" ==> 0x200cc8b0 in "libc.so.7"
> >Bus error (core dumped)
> >
> >I've posted both a gdb log showing the stepi, and my copy of
> >ld-elf.so.1 to:
> >https://www.funkthat.com/~jmg/20140619/
> >
> >Let me know if there is any additional information...
> >
> What happens if you set LD_BIND_NOW=1 in the environment first?

That causes newsyslog to work.

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."