Looks like the mutex linux_futex.c::futex_lock is missing a mutex_destroy() on module unload to make LOCKDEBUG happy.
-- Juergen Hannken-Illjes - hann...@eis.cs.tu-bs.de - TU Braunschweig (Germany) On Jul 2, 2011, at 6:29 PM, dieter roelants wrote: > On Fri, 1 Jul 2011 13:53:01 +0200 > dieter roelants <dieter.net...@pandora.be> wrote: > >> Mutex error: lockdebug_alloc: already initialized >> > > It looks like this is reproducable: I wiped all packages from the > machine and started building again and it crashed in the exact same way > (while pkg_adding nspluginwrapper). > > I have the following on the console: > > /usr/pkg/emul/linux32/sbin/ldconfig: bad tag 3: [4 4, 20 4, GNU PaX] > /usr/pkg/lib/nspluginwrapper/i386/linux/npviewer.bin: bad tag 1: [4 4, 16 4, > GNU PaX] > /usr/pkg/lib/nspluginwrapper/i386/linux/npviewer.bin: bad tag 1: [4 4, 16 4, > GNU PaX] > /usr/pkg/lib/nspluginwrapper/i386/linux/npviewer.bin: bad tag 1: [4 4, 16 4, > GNU PaX] > Mutex error: lockdebug_alloc: already initialized > > lock address : 0xffffffff80f96d20 type : sleep/adaptive > initialized : 0xffffffff80f8c8b1 > shared holds : 0 exclusive: 0 > shares wanted: 0 exclusive: 0 > current cpu : 1 last held: 2 > current lwp : 0xffff80006c2915a0 last held: 000000000000000000 > last locked : 0xffffffff80f8c4e6 unlocked*: 0xffffffff80f8c43f > owner field : 000000000000000000 wait/spin: 0/0 > > Turnstile chain at 0xffffffff80cf3700. > => No active turnstile for this lock. > > panic: LOCKDEBUG > fatal breakpoint trap in supervisor mode > trap type 1 code 0 rip ffffffff8024088d cs 8 rflags 246 cr2 fb84b0a0 cpl 0 > rsp ffff80006bf9b920 > Stopped in pid 25865.25865 (npviewer.bin) at netbsd:breakpoint+0x5: leave > db{1}> bt > breakpoint() at netbsd:breakpoint+0x5 > panic() at netbsd:panic+0x27d > lockdebug_locked() at netbsd:lockdebug_locked > lockdebug_alloc() at netbsd:lockdebug_alloc+0xd9 > mutex_init() at netbsd:mutex_init+0x93 > futex_init() at compat_linux:futex_init+0x17 > linux_do_futex() at compat_linux:linux_do_futex+0x39f > db{1}> ps > PID LID S CPU FLAGS STRUCT LWP * NAME WAIT > 25865>25865 7 1 40000 ffff80006c2915a0 npviewer.bin > 11904 1 3 2 80 ffff80006c291180 npconfig wait > 28517 1 3 2 80 ffff800071127020 sh wait > 18356 1 3 2 40080 ffff80006d56e1a0 pkg_add wait > 5658 1 3 2 80 ffff80006d2c8560 sh wait > 665 1 3 2 80 ffff80006863d060 make wait > 1297 1 3 2 80 ffff80007af924a0 sh wait > 16744 1 3 2 80 ffff8000710c1740 make wait > 5290 1 3 3 80 ffff80006c94e420 sh wait > 27442 1 3 3 80 ffff80007b05e8e0 make wait > 9114 1 3 3 80 ffff80006c298600 sh wait > 6731 1 3 3 80 ffff80006d4a99c0 make wait > 14733 1 3 3 80 ffff80006c340680 sh wait > > I can get more info from ddb if needed... > > kind regards > dieter