Hi, I have a Dell notebook (Latitude E6530) on which I track 9-STABLE. It served excellently until mid-Jan when it started to panic a few times a week or so:
Fatal trap 12: page fault while in kernel mode cpuid = 3; apic id = 03 fault virtual address = 0x10116 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff802bc360 stack pointer = 0x28:0xffffff848f6db390 frame pointer = 0x28:0xffffff848f6db3c0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 2199 (conky) trap number = 12 panic: page fault cpuid = 3 Before the panics kernel used to emit messages like: ACPI Error: No object attached to node 0xfffffe00094a51c0 (20110527/exresnte-138) ACPI Error: Method execution failed [\_SB_.BAT0._UID] (Node 0xfffffe00094a51c0), AE_AML_NO_OPERAND (20110527/uteval-113) I suspected it started with a BIOS update (A07 -> A09). Following the handbook, I took a look at acpidump. Sad to say, it all was Greek to me, I could't even compile it back using iasl (35 Errors). However, while skimming it I noticed names of many versions of Windows and in addition to that, "Linux". Just to try, I put hw.acpi.osname="Linux" to /boot/loader.conf. Since that I've never get the panic again (for ~3 weeks). I hope this is not just a coincidence. Maybe this experience can help somebody else. If any of ACPI developers wants to play with the problem I can provide more info (sorry, no crashdump, was not enabled), do tests, etc. BR Oli _______________________________________________ freebsd-acpi@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "freebsd-acpi-unsubscr...@freebsd.org"
