LOR in 6.0 as of 2 days ago or so..

From: Julian Elischer <julian_at_elischer.org>
Date: Wed, 27 Jul 2005 21:01:16 -0700
lock order reversal
  1st 0xc097a580 UMA lock (UMA lock) _at_ /usr/src/sys/vm/uma_core.c:1494
  2nd 0xc1060144 system map (system map) _at_ /usr/src/sys/vm/vm_map.c:2317
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c092f698,c092f7d8,c08ba084) at kdb_backtrace+0x29
witness_checkorder(c1060144,9,c0870876,90d) at witness_checkorder+0x564
_mtx_lock_flags(c1060144,0,c0870876,90d) at _mtx_lock_flags+0x5b
_vm_map_lock(c10600c0,c0870876,90d) at _vm_map_lock+0x26
vm_map_remove(c10600c0,c2f91000,c2f92000,e50f8c08,c077e315) at
vm_map_remove+0x1f
kmem_free(c10600c0,c2f91000,1000,e50f8c38,c077dcc2) at kmem_free+0x25
page_free(c2f91000,1000,2) at page_free+0x29
zone_drain(c26605a0) at zone_drain+0x26a
zone_foreach(c077da58,e50f8cec,c078fb2b,c2382300,e50f8c74) at zone_foreach+0x37
uma_reclaim(c2382300,e50f8c74,0,c0925cc0,e50f8c80) at uma_reclaim+0x12
vm_pageout_scan(0,c097a9e0,0,c0871d63,5c3) at vm_pageout_scan+0x103
vm_pageout(0,e50f8d38,0,c07908e4,0) at vm_pageout+0x2c3
fork_exit(c07908e4,0,e50f8d38) at fork_exit+0xa0
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xe50f8d6c, ebp = 0 ---

this is just as it mounts the filesystems during boot.
I'll resup and recompile to check about todays sources but
I've seen this for a while.
Received on Thu Jul 28 2005 - 02:01:17 UTC

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