Date: Fri, 1 Aug 2003 11:02:49 +0000 From: Bosko Milekic <bmilekic@technokratis.com> To: Lars Eggert <larse@ISI.EDU> Cc: current@freebsd.org Subject: Re: vm/map LOR Message-ID: <20030801110249.GA3402@technokratis.com> In-Reply-To: <3F29AA3E.9040809@isi.edu> References: <3F29AA3E.9040809@isi.edu>
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fakepg_zone should probably be UMA_ZONE_VM. Or the vm_object lock needs to be dropped before allocating or freeing to that zone. What does Alan think? (cc'd) -Bosko On Thu, Jul 31, 2003 at 04:46:06PM -0700, Lars Eggert wrote: > Hi, > > with yesterday's -current: > > 1st 0xc6dfd094 vm object (vm object) @ /usr/src/sys/vm/vm_object.c:434 > 2nd 0xc082f110 system map (system map) @ /usr/src/sys/vm/vm_kern.c:323 > > Stack backtrace: > backtrace(c032000b,c082f110,c033362f,c033362f,c03334c6) at backtrace+0x17 > witness_lock(c082f110,8,c03334c6,143,c082f0b0) at witness_lock+0x686 > _mtx_lock_flags(c082f110,0,c03334c6,143,101) at _mtx_lock_flags+0xb5 > _vm_map_lock(c082f0b0,c03334c6,143,c0374778,c03747a0) at _vm_map_lock+0x36 > kmem_malloc(c082f0b0,1000,101,eb44db14,c02b0433) at kmem_malloc+0x3a > page_alloc(c083a240,1000,eb44db07,101,0) at page_alloc+0x27 > slab_zalloc(c083a240,101,c083a254,8,c0334e1e) at slab_zalloc+0xc2 > uma_zone_slab(c083a240,101,c0334e1e,663,165) at uma_zone_slab+0xd9 > uma_zalloc_internal(c083a240,0,101,6e7,0) at uma_zalloc_internal+0x4f > uma_zfree_arg(c083a900,c6e31000,0,eb44dbc4,c029884d) at uma_zfree_arg+0x2a6 > dev_pager_putfake(c6e31000,0,c0332b9e,be,c6dfd094) at dev_pager_putfake+0x35 > dev_pager_dealloc(c6dfd094,1,c0334dcf,10c,0) at dev_pager_dealloc+0xb9 > vm_pager_deallocate(c6dfd094,0,c0333f6c,261,1b2) at vm_pager_deallocate+0x3d > vm_object_terminate(c6dfd094,0,c0333f6c,1b2,c6b894ec) at > vm_object_terminate+0x1e5 > vm_object_deallocate(c6dfd094,c082bd20,c6dfd094,c082bd20,eb44dca0) at > vm_object_deallocate+0x35e > vm_map_entry_delete(c6593e00,c082bd20,c033369d,897,c019f843) at > vm_map_entry_delete+0x3c > vm_map_delete(c6593e00,282e2000,282e3000,1000,282e2000) at > vm_map_delete+0x3c3 > vm_map_remove(c6593e00,282e2000,282e3000,0,c6b8a618) at vm_map_remove+0x55 > munmap(c6ae24c0,eb44dd14,c0339293,3ee,2) at munmap+0x9e > syscall(2f,2f,2f,f8000,1000) at syscall+0x260 > Xint0x80_syscall() at Xint0x80_syscall+0x1d > --- syscall (73), eip = 0x28257aa7, esp = 0xbfbffc1c, ebp = 0xbfbffc48 --- > > Lars > -- > Lars Eggert <larse@isi.edu> USC Information Sciences Institute -- Bosko Milekic * bmilekic@technokratis.com * bmilekic@FreeBSD.org TECHNOkRATIS Consulting Services * http://www.technokratis.com/
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