cvs commit: src/sys/dev/acpica acpi_pci_link.c

[Pawel Jakub Dawidek]

On Wed, Dec 01, 2004 at 09:05:02PM +0000, John Baldwin wrote:
+> jhb         2004-12-01 21:05:02 UTC
+> 
+>   FreeBSD src repository
+> 
+>   Modified files:
+>     sys/dev/acpica       acpi_pci_link.c 
+>   Log:
+>   - Do a better job of handling any Dependent Functions (aka DPFs) that appear
+>     in the _PRS or _CRS of link devices.  If faced with multiple DPFs in a
+>     _PRS, we just use the first one.  We assume that if _CRS has DPF tags they
+>     only contain a single set since multiple DPFs wouldn't make any sense.  In
+>     practice, the only DPFs I've seen so far for link devices are that the one
+>     IRQ resource is surrounded by a DPF tag pair for no apparent reason, and
+>     this should handle that case fine now.
+>   - Only allocate link structures for IRQ resources for link devices rather
+>     than allocating a link structure for every resource.

On my box things looks much worse (not sure if this is related):

Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) XEON(TM) CPU 1.80GHz (1799.75-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf24  Stepping = 4
  Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
  Hyperthreading: 2 logical CPUs
real memory  = 1073741824 (1024 MB)
avail memory = 1046126592 (997 MB)
ACPI APIC Table: <INTEL          APIC  >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  6
 cpu3 (AP): APIC ID:  7
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x9
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc05ac7c9
stack pointer           = 0x10:0xc0820cb4
frame pointer           = 0x10:0xc0820cd0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 0 (swapper)
[thread pid 0 tid 0 ]
Stopped at      cpu_fork+0x1a1: incl    0x8(%eax)
db> tr
Tracing pid 0 tid 0 td 0xc0617e20
cpu_fork(c0617e20,c1e8b000,c1e83300,60034,c1e8b068,0,c05cd0e1,287,c0619fe0,c05cd0e1,283) at cpu_fork+0x1a1
fork1(c0617e20,60034,0,c0820d4c) at fork1+0xbe5
kthread_create(c0488eac,0,0,40000,0) at kthread_create+0x33
ktrace_init(0,c1e70f70,81ec00,81e000,828000) at ktrace_init+0xac
mi_startup() at mi_startup+0xb3
begin() at begin+0x2c
db> 

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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