FreeBSD 6.1 Tor issues (Once More, with Feeling)

[Fabian Keil]

Robert Watson <rwatson at FreeBSD.org> wrote:

> - Are there any warnings on the console from WITNESS or other
> debugging options?

I just got:

Jun 28 23:01:19 tor kernel: lock order reversal:
Jun 28 23:01:19 tor kernel: 1st 0xc3795000 kqueue (kqueue) @ /usr/src/sys/kern/kern_event.c:1053
Jun 28 23:01:19 tor kernel: 2nd 0xc1043144 system map (system map) @ /usr/src/sys/vm/vm_map.c:2390
Jun 28 23:01:20 tor kernel: KDB: stack backtrace:
Jun 28 23:01:20 tor kernel: kdb_backtrace(0,ffffffff,c0711af0,c0713440,c06db624) at kdb_backtrace+0x29
Jun 28 23:01:20 tor kernel: witness_checkorder(c1043144,9,c06b90a8,956) at witness_checkorder+0x578
Jun 28 23:01:20 tor kernel: _mtx_lock_flags(c1043144,0,c06b90a8,956) at _mtx_lock_flags+0x5b
Jun 28 23:01:20 tor kernel: _vm_map_lock(c10430c0,c06b90a8,956) at _vm_map_lock+0x26
Jun 28 23:01:20 tor kernel: vm_map_remove(c10430c0,c3bc6000,c3bc8000,d6f55b30,c0623361) at vm_map_remove+0x1f
Jun 28 23:01:20 tor kernel: kmem_free(c10430c0,c3bc6000,2000,d6f55b48,c062524f) at kmem_free+0x25
Jun 28 23:01:20 tor kernel: page_free(c3bc6000,2000,22,2000,d6f55b60) at page_free+0x29
Jun 28 23:01:20 tor kernel: uma_large_free(c3ba5140) at uma_large_free+0x7b
Jun 28 23:01:20 tor kernel: free(c3bc6000,c06d8980,c3bc6000,c4830000,1400) at free+0xc5
Jun 28 23:01:20 tor kernel: kqueue_expand(c3795000,c06d8a40,500,0) at kqueue_expand+0xd7
Jun 28 23:01:20 tor kernel: kqueue_register(c3795000,d6f55bf4,c3a8f480,1,0) at kqueue_register+0x1b8
Jun 28 23:01:20 tor kernel: kern_kevent(c3a8f480,3,19,200,d6f55cc8) at kern_kevent+0xc9
Jun 28 23:01:20 tor kernel: kevent(c3a8f480,d6f55d04,6,2,212) at kevent+0x55
Jun 28 23:01:20 tor kernel: syscall(2824003b,80e003b,bfbf003b,cb87000,80d5020) at syscall+0x22f
Jun 28 23:01:20 tor kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f
Jun 28 23:01:20 tor kernel: --- syscall (363, FreeBSD ELF32, kevent), eip = 0x282cc4af, esp = 0xbfbfe9fc, ebp = 0xbfbfea48 ---

Looks similar to <http://sources.zabbadoz.net/freebsd/lor.html#185>.

Fabian
-- 
http://www.fabiankeil.de/
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