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Date: Sun, 7 Mar 2004 19:44:21 +0100
From: Paolo Pisati <flag@oltrelinux.com>
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Subject: LOR in yesterday CURRENT: system map vs Giant
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Just after starting X, i got this on the console:

drm0: <ATI Radeon LY Mobility M6> port 0xd800-0xd8ff mem 0xef000000-0xef00ffff,0
xf0000000-0xf7ffffff irq 11 at device 0.0 on pci1
info: [drm] AGP at 0xf8000000 64MB
info: [drm] Initialized radeon 1.10.0 20020828 on minor 0
drm0: [MPSAFE]
lock order reversal
 1st 0xc0c3b060 system map (system map) @ /usr/src/sys/vm/vm_map.c:2210
 2nd 0xc066db40 Giant (Giant) @ /usr/src/sys/vm/vm_fault.c:1084
Stack backtrace:
backtrace(c0621dad,c066db40,c061dc30,c061dc30,c062cd15) at backtrace+0x17
witness_checkorder(c066db40,9,c062cd15,43c,c062eb5e) at witness_checkorder+0x6f8

_mtx_lock_flags(c066db40,0,c062cd15,43c,c0c39780) at _mtx_lock_flags+0x9d
vm_fault_unwire(c0c3b000,d3143000,d3144000,c0c39690,d244cc24) at vm_fault_unwire
+0x36
vm_map_entry_unwire(c0c3b000,c0c39780,d3144000,d244cc24,c059cfe6) at vm_map_entr
y_unwire+0x25
vm_map_delete(c0c3b000,d3143000,d3144000,c2805580,c2ccc85c) at vm_map_delete+0x1
65
vm_map_remove(c0c3b000,d3143000,d3144000,d244cc80,c05e20b0) at vm_map_remove+0x5
5
kmem_free(c0c3b000,d3143000,1000,16a,1) at kmem_free+0x32
user_ldt_free(c287d7e0,c2ccc74c,d244ccd4,c04b5ece,c287d7e0) at user_ldt_free+0xf
0
cpu_exit(c287d7e0,0,c061be87,1f8,1) at cpu_exit+0x36
exit1(c287d7e0,0,d244cd40,c05e3660,c287d7e0) at exit1+0x116e
sys_exit(c287d7e0,d244cd14,4,7,1) at sys_exit+0x1d
syscall(2f,2f,2f,bfbfed1c,bfbfed24) at syscall+0x2a0
Xint0x80_syscall() at Xint0x80_syscall+0x1d
--- syscall (1), eip = 0x287ca89b, esp = 0xbfbfec8c, ebp = 0xbfbfecf4 ---

I wish it helps...

-- 
Paolo

Italian FreeBSD User Group: http://www.gufi.org