kern/71131: causes bfe to panic

Daniel O'Connor doconnor at
Sun Aug 29 18:50:27 PDT 2004

>Number:         71131
>Category:       kern
>Synopsis: causes bfe to panic
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 30 01:50:25 GMT 2004
>Originator:     Daniel O'Connor
>Release:        FreeBSD 5.2-CURRENT i386
System: FreeBSD inchoate.localdomain 5.2-CURRENT FreeBSD 5.2-CURRENT #5: Mon Aug 23 12:04:16 CST 2004 darius at inchoate.localdomain:/usr/src/sys/i386/compile/INCHOATE i386

If I use I get a panic on boot that looks like


fault v. addr = 0xb
fault code = supervisor read, page not present
instr ptr = 0x8:0xc05a9198
cur proc = ifconfig

Here's a fragment from nm /boot/kernel/kernel
c05a8ab4 t _bus_dmamap_load_buffer
c05a9178 T _bus_dmamap_sync
c05a913c T _bus_dmamap_unload
c04da6c8 T _callout_stop_safe

I have the coredump but no GDB to debug it...


Install setup a profile and reboot.



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