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From: James Raynard <fcurrent@jraynard.demon.co.uk>
Message-Id: <199608050001.AAA03985@jraynard.demon.co.uk>
Subject: Panic: vm_page_free: invalid wire count
To: freebsd-current@freebsd.org
Date: Mon, 5 Aug 1996 00:01:43 +0000 ()
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Kernel as of 31st July, two simultaneous compilations going on while
I was reading Usenet.  System panicked with

panic: vm_page_free: invalid wire count (2), pindex: 0x6

The DDB trace was:-

_panic(f016d193, 2, 6, f02462f0, efbffe18) at _panic + 0x5a
_vm_page_freechk_and_unqueue(f02462f0) at _vm_page_freechk_and_unqueue + 0x150
_vm_page_free(f02462f0, f0bf3580, 0, f0c11700, f01a3578) at vm_page_free + 0x2d
_vm_object_terminate(f0b3580,f0c41908,f0bba500,f0c11700,efbffe5c) at vm_object_terminate + 0x12d
_vm_object_deallocate(f0bf3580, efbffe6c, f016b2ed, f0bf3580) at vm_object_deallocate + 0x1af
_pager_cache(f0bf3580,0) at pager_cache + 0x2a
_vm_object_cache_timer(f0c41900, 0, 0, 1, 1) at _pager_cache + 0x5d
_vm_object_deallocate(f0c41900, 0, efbffecc, f01315b3, f0bba500) at _vm_object_deallocate + 0x174
_vn_vmio_close(f0bba500, f0c11700, f0cb66c0, f01a316c, f0bba500) at _vn_vmio_close + 0x30
_vn_close(f0bba500, 2, f037f00, f0c11700, efbfff30) at _vn_close + 0x4b
_vn_closefile(f0cb66c0, f0c11700, f0cb7900, 0, f0c11700) at _vn_closefile + 0x19
_closef(f0cb66c0, f0c11700, f01a3e40, f0c11700,0) at _closef + 0x12c
_close(f0c11700, efbfff94, efbfff84, 8093060, 1e55c) at _closefile + 0x83
_syscall(27, 27, 0, 1e55c, 26da8) at _syscall + 0x183
_Xsyscall() at _Xsyscall + 0x35
syscall 6, eip = 0x8087901, ebp = 0x26da8