Date: Tue, 24 Apr 2012 12:51:20 +0400 From: Sergey Kandaurov <pluknet@gmail.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: panic: vm_page_free: freeing free page Message-ID: <CAE-mSOLCqt9%2BeZLwCxG_G9sLbuWxY58xm6wL=MjiKBGip9DRaA@mail.gmail.com>
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Yep, this is quite old - 7.2-STABLE i386. I got this panic after starting doing some Xorg activity, otherwise system was idle for some hours. I wonder if this is know/fixed in later versions. If that's true then please just ignore this mail. Unread portion of the kernel message buffer: vm_page_free: pindex(0), busy(0), VPO_BUSY(0), hold(0) panic: vm_page_free: freeing free page cpuid =3D 0 Uptime: 7d1h47m51s (kgdb) bt #0 doadump () at pcpu.h:196 #1 0xc057ce07 in boot (howto=3D260) at /usr/home/pluknet/cvs-7/src/sys/kern/kern_shutdown.c:418 #2 0xc057d0d9 in panic (fmt=3DVariable "fmt" is not available. ) at /usr/home/pluknet/cvs-7/src/sys/kern/kern_shutdown.c:574 #3 0xc06da965 in vm_page_free_toq (m=3D0xc1c1edb8) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_page.c:1375 #4 0xc06dab66 in vm_page_free (m=3D0xc1c1edb8) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_page.c:506 #5 0xc06d9850 in vm_object_page_remove (object=3D0xc7bad300, start=3D0, en= d=3D256, clean_only=3D0) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_object.c:1955 #6 0xc06d1756 in vm_map_delete (map=3DVariable "map" is not available. ) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_map.c:2329 #7 0xc06d5287 in munmap (td=3D0xc5f0c240, uap=3D0xe8a01cfc) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_mmap.c:582 #8 0xc071f375 in syscall (frame=3D0xe8a01d38) at /usr/home/pluknet/cvs-7/src/sys/i386/i386/trap.c:1101 #9 0xc0703a20 in Xint0x80_syscall () at /usr/home/pluknet/cvs-7/src/sys/i386/i386/exception.s:262 (kgdb) up #1 0xc057ce07 in boot (howto=3D260) at /usr/home/pluknet/cvs-7/src/sys/kern/kern_shutdown.c:418 418 doadump(); (kgdb) up #2 0xc057d0d9 in panic (fmt=3DVariable "fmt" is not available. ) at /usr/home/pluknet/cvs-7/src/sys/kern/kern_shutdown.c:574 574 boot(bootopt); (kgdb) up #3 0xc06da965 in vm_page_free_toq (m=3D0xc1c1edb8) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_page.c:1375 warning: Source file is more recent than executable. 1375 if (VM_PAGE_IS_FREE(m)) (kgdb) inspect *m $1 =3D {pageq =3D {tqe_next =3D 0xc1c1ee48, tqe_prev =3D 0xc2c69328}, listq= =3D { tqe_next =3D 0xc1c1ee48, tqe_prev =3D 0xc7bad32c}, left =3D 0x0, right =3D 0xc1b9f5d0, object =3D 0x0, pindex =3D 0, phys_addr =3D 6917980= 16, md =3D { pat_mode =3D 6, pv_list =3D {tqh_first =3D 0x0, tqh_last =3D 0xc1c1ede4= }}, queue =3D 2 '\002', segind =3D 3 '\003', flags =3D 131, order =3D 11 '\v'= , pool =3D 0 '\0', cow =3D 0, wire_count =3D 0, hold_count =3D 0, oflags = =3D 0, act_count =3D 5 '\005', busy =3D 0 '\0', valid =3D 0 '\0', dirty =3D 255 = '=D0=AA'} (kgdb) up #4 0xc06dab66 in vm_page_free (m=3D0xc1c1edb8) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_page.c:506 506 vm_page_free_toq(m); (kgdb) up #5 0xc06d9850 in vm_object_page_remove (object=3D0xc7bad300, start=3D0, en= d=3D256, clean_only=3D0) at /usr/home/pluknet/cvs-7/src/sys/vm/vm_object.c:1955 1955 vm_page_free(p); (kgdb) inspect *p $2 =3D {pageq =3D {tqe_next =3D 0xc1c1ee48, tqe_prev =3D 0xc2c69328}, listq= =3D { tqe_next =3D 0xc1c1ee48, tqe_prev =3D 0xc7bad32c}, left =3D 0x0, right =3D 0xc1b9f5d0, object =3D 0x0, pindex =3D 0, phys_addr =3D 6917980= 16, md =3D { pat_mode =3D 6, pv_list =3D {tqh_first =3D 0x0, tqh_last =3D 0xc1c1ede4= }}, queue =3D 2 '\002', segind =3D 3 '\003', flags =3D 131, order =3D 11 '\v'= , pool =3D 0 '\0', cow =3D 0, wire_count =3D 0, hold_count =3D 0, oflags = =3D 0, act_count =3D 5 '\005', busy =3D 0 '\0', valid =3D 0 '\0', dirty =3D 255 = '=D0=AA'} (kgdb) inspect *object $3 =3D {mtx =3D {lock_object =3D {lo_name =3D 0xc0777524 "vm object", lo_type =3D 0xc077818b "standard object", lo_flags =3D 21168128, lo_witness_data =3D {lod_list =3D {stqe_next =3D 0x0}, lod_witness = =3D 0x0}}, mtx_lock =3D 3320889920, mtx_recurse =3D 0}, object_list =3D { tqe_next =3D 0xca3fa300, tqe_prev =3D 0xca632818}, shadow_head =3D { lh_first =3D 0x0}, shadow_list =3D {le_next =3D 0x0, le_prev =3D 0xc8c4= 5a20}, memq =3D {tqh_first =3D 0xc1c1edb8, tqh_last =3D 0xc23411a8}, root =3D 0x= c2171ef8, size =3D 1024, generation =3D 2748, ref_count =3D 2, shadow_count =3D 0, type =3D 0 '\0', memattr =3D 6 '\006', flags =3D 12544, pg_color =3D 4684= 8, paging_in_progress =3D 1, resident_page_count =3D 179, backing_object =3D= 0x0, backing_object_offset =3D 0, pager_object_list =3D {tqe_next =3D 0x0, tqe_prev =3D 0x0}, rvq =3D {lh_first =3D 0x0}, cache =3D 0x0, handle = =3D 0x0, un_pager =3D {vnp =3D {vnp_size =3D 0}, devp =3D {devp_pglist =3D {tqh_fi= rst =3D 0x0, tqh_last =3D 0x0}}, sgp =3D {sgp_pglist =3D {tqh_first =3D 0x0, tqh_last =3D 0x0}}, swp =3D {swp_bcount =3D 0}}} --=20 wbr, pluknet
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