Attachment 33365 Details for Bug 54690 – foo.txt

foo.txt

foo.txt (text/plain; charset=us-ascii), 1.13 KB, created by Bruce M Simpson on 2003-07-23 10:49:08 UTC

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Creator: Bruce M Simpson

Created: 2003-07-23 10:49:08 UTC

Size: 1.13 KB

patch

obsolete

>process exception: page fault, fault VA = 0x17f4b000
>lock order reversal
> 1st 0xc27abb88 vm object (vm object) @ vm/vm_map.c:2224
> 2nd 0xc03e2ae0 swap_pager swhash mutex (swap_pager swhash mutex) @ vm/swap_pager.c:1974
>Stack backtrace:
>backtrace(c0341300,c03e2ae0,c035555a,c035555a,c035557b) at backtrace+0x17
>witness_lock(c03e2ae0,8,c035557b,7b6,d5d1eba0) at witness_lock+0x697
>_mtx_lock_flags(c03e2ae0,0,c0355572,7b6,d5d1eba0) at _mtx_lock_flags+0xb1
>swp_pager_meta_free(c27abb88,0,0,1,0) at swp_pager_meta_free+0x70
>swap_pager_freespace(c27abb88,0,0,1,0) at swap_pager_freespace+0x58
>vm_map_delete(c0eb9bdc,0,bfc00000,c0eb9bdc,c2677200) at vm_map_delete+0x3c6
>vm_map_remove(c0eb9bdc,0,bfc00000,111,d5d1ec88) at vm_map_remove+0x58
>exit1(c25dd390,8b,1d1,c25dcf00,0) at exit1+0x626
>sigexit(c25dd390,b,c033e8c8,865,0) at sigexit+0x1a7
>postsig(b,0,c0340dbd,f8,30800) at postsig+0x164
>ast(d5d1ed48) at ast+0x46f
>doreti_ast() at doreti_ast+0x17
>Debugger("witness_lock")
>Stopped at      Debugger+0x54:  xchgl   %ebx,in_Debugger.0
>db> show witness
>...
>3   swap_pager swhash mutex -- last acquired @ vm/swap_pager.c:2094
>7    vm object -- (already displayed)
>...

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