random panics: vm_phys_free_pages: page 0xc161f2a0 has unexpected order 10

[Brad Allen]

<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2"><SPAN style="font-family: Arial,sans-serif;">I am getting random panics with 7.0-CURRENT i386, a couple of examples of what has been triggering them is extracting ports tree via portsnap and compiling ports.<BR><BR></SPAN></FONT><PRE>Unread portion of the kernel message buffer:<BR>panic: vm_phys_free_pages: page 0xc22c72a0 has unexpected order 10<BR>cpuid = 0<BR>KDB: enter: panic<BR>Uptime: 1h35m53s<BR>Physical memory: 1011 MB<BR>Dumping 167 MB: 152 136 120 104 88 72 56 40 24 8<BR><BR>#0  doadump () at pcpu.h:195<BR>195     pcpu.h: No such file or directory.<BR>        in pcpu.h<BR>(kgdb) bt<BR>#0  doadump () at pcpu.h:195<BR>#1  0xc074d98e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409<BR>#2  0xc074dc4b in panic (fmt=Variable "fmt" is not available.) at <BR>    /usr/src/sys/kern/kern_shutdown.c:563<BR>#3  0xc0969ace in vm_phys_free_pages (m=0xc22c72a0, order=0)<BR>    at /usr/src/sys/vm/vm_phys.c:419<BR>#4  0xc096443e in vm_page_free_toq (m=0xc22c72a0)<BR>    at /usr/src/sys/vm/vm_page.c:1308<BR>#5  0xc0964526 in vm_page_free_zero (m=0xc22c72a0)<BR>    at /usr/src/sys/vm/vm_page.c:511<BR>#6  0xc09fe043 in pmap_remove_pages (pmap=0xc6c00344)<BR>    at /usr/src/sys/i386/i386/pmap.c:1142<BR>#7  0xc095d64c in vmspace_exit (td=0xc75bc000) at /usr/src/sys/vm/vm_map.c:395<BR>#8  0xc072eaeb in exit1 (td=0xc75bc000, rv=0)<BR>    at /usr/src/sys/kern/kern_exit.c:294<BR>#9  0xc072f8ad in sys_exit (td=Could not find the frame base for "sys_exit".) <BR>    at /usr/src/sys/kern/kern_exit.c:98<BR>#10 0xc0a025b3 in syscall (frame=0xe678bd38)<BR>    at /usr/src/sys/i386/i386/trap.c:1008<BR>#11 0xc09e8850 in Xint0x80_syscall ()<BR>    at /usr/src/sys/i386/i386/exception.s:196<BR>#12 0x00000033 in ?? ()<BR>Previous frame inner to this frame (corrupt stack?)<BR><BR>Any help would be greatly appreciated.<BR><BR>Regards<BR><BR>Brad<BR><FONT size="2"><SPAN style="font-family: Arial,sans-serif;"></SPAN></FONT></PRE><FONT size="2"><SPAN style="font-family: Arial,sans-serif;"></SPAN></FONT></DIV>