Can you try the following change: http://svn.freebsd.org/viewvc/base/user/kmacy/releng_7_2_fcs/sys/vm/vm_object.c?r1=192842&r2=195297 Thanks, Kip On Sun, Jul 12, 2009 at 1:31 PM, Ulrich Spörlein<uqs_at_spoerlein.net> wrote: > Hi, > > 8.0 BETA1 _at_ r195622 will panic reliably when running the clang static > analyzer on a buildworld with something like the following panic: > > panic: vm_page_free_toq: freeing mapped page 0xffffff00c9715b30 > cpuid = 1 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > panic() at panic+0x182 > vm_page_free_toq() at vm_page_free_toq+0x1f6 > vm_object_terminate() at vm_object_terminate+0xb7 > vm_object_deallocate() at vm_object_deallocate+0x17a > _vm_map_unlock() at _vm_map_unlock+0x70 > vm_map_remove() at vm_map_remove+0x6f > vmspace_free() at vmspace_free+0x56 > vmspace_exec() at vmspace_exec+0x56 > exec_new_vmspace() at exec_new_vmspace+0x133 > exec_elf32_imgact() at exec_elf32_imgact+0x2ee > kern_execve() at kern_execve+0x3b2 > execve() at execve+0x3d > syscall() at syscall+0x1af > Xfast_syscall() at Xfast_syscall+0xe1 > --- syscall (59, FreeBSD ELF64, execve), rip = 0x800c20d0c, rsp = 0x7fffffffd6f8, rbp = 0x7fffffffdbf0 --- > KDB: enter: panic > exclusive sleep mutex vm page queue mutex (vm page queue mutex) r = 0 (0xffffffff8095ea60) locked _at_ /data/freebsd-head/sys/vm/vm_object.c:688 > exclusive sleep mutex vm object (standard object) r = 0 (0xffffff0046453798) locked _at_ /data/freebsd-head/sys/vm/vm_object.c:450 > exclusive sleep mutex vm page queue mutex (vm page queue mutex) r = 0 (0xffffffff8095ea60) locked _at_ /data/freebsd-head/sys/vm/vm_object.c:688 > exclusive sleep mutex vm object (standard object) r = 0 (0xffffff0046453798) locked _at_ /data/freebsd-head/sys/vm/vm_object.c:450 > exclusive sleep mutex pmap (pmap) r = 0 (0xffffff003c8b02b8) locked _at_ /data/freebsd-head/sys/amd64/amd64/pmap.c:3955 > shared sx user map (user map) r = 0 (0xffffff003c8b0200) locked _at_ /data/freebsd-head/sys/vm/vm_map.c:3522 > exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff0004698e40) locked _at_ /data/freebsd-head/sys/kern/uipc_sockbuf.c:148 > > > Cheers, > Ulrich Spörlein > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" > -- When bad men combine, the good must associate; else they will fall one by one, an unpitied sacrifice in a contemptible struggle. Edmund BurkeReceived on Sun Jul 12 2009 - 19:22:24 UTC
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