On 21:02 Mon 22 Mar, Ariane van der Steldt wrote:
> [cc-ed to tech@, more testing is good!]
>
> Hi,
>
> Last c2k9 this diff appeared and alot of head-ache was the result,
> eventually it was part of the Big Backout.
>
> Time to try this again.
>
> What I'd like:
> - test this diff
> - if you don't test this diff, please run a kernel with
> option PAGEFASTRECYCLE
> - give feedback/okays on diff below
> Below some notes and thoughts on the allocator, some points probably
> merit discussion, some points give limitations/cave-ats.
>
> #define UVM_IO_RANGES
> \
> { \
> { 0, 0x00ffffffUL }, /* ISA memory */ \
> { 0, 0xffffffffUL }, /* 32-bit PCI memory */ \
> }
> This line increases the cost function for ISA and 32-bit PCI memory: the
> allocator will prefer memory outside these ranges unless constrained.
> The first range is required: without it, any pci device may be given ISA
> memory, causing the actual ISA devices to be unable to allocate (kernel
> panics during boot often happen in this case).
Hi!
Looks like the isa panics still happen:
>> OpenBSD/i386 BOOT 3.02
boot> boot
booting hd0a:/bsd: 6885564+1055112 [52+361152+345553]=0x83f480
entry point at 0x200120
[ using 707132 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2010 OpenBSD. All rights reserved. http://www.OpenBSD.org
OpenBSD 4.7-current (GENERIC) #0: Wed Mar 24 00:09:15 EET 2010
pro...@skywalker.wilab:/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Celeron(R) M processor 1.00GHz ("GenuineIntel" 686-class, 0KB L2
cache) 1 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,SBF
real mem = 501706752 (478MB)
avail mem = 476917760 (454MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 05/03/07, BIOS32 rev. 0 @ 0xfaa80, SMBIOS
rev. 2.2 @ 0xf0800 (34 entries)
bios0: vendor Phoenix Technologies, LTD version "6.00 PG" date 05/03/2007
apm0 at bios0: Power Management spec V1.2 (slowidle)
apm0: AC on, battery charge unknown
acpi at bios0 function 0x0 not configured
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xdf84
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfde80/240 (13 entries)
pcibios0: PCI Exclusive IRQs: 6 9 10 12
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801DBM LPC" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xd400!
cpu0 at mainbus0: (uniprocessor)
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel 82855GM Host" rev 0x02
"Intel 82855GM Memory" rev 0x02 at pci0 dev 0 function 1 not configured
"Intel 82855GM Config" rev 0x02 at pci0 dev 0 function 3 not configured
vga1 at pci0 dev 2 function 0 "Intel 82855GM Video" rev 0x02
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
intagp0 at vga1
agp0 at intagp0: aperture at 0xe0000000, size 0x8000000
inteldrm0 at vga1: irq 10
drm0 at inteldrm0
"Intel 82855GM Video" rev 0x02 at pci0 dev 2 function 1 not configured
uhci0 at pci0 dev 29 function 0 "Intel 82801DB USB" rev 0x02: irq 10
uhci1 at pci0 dev 29 function 1 "Intel 82801DB USB" rev 0x02: irq 10
uhci2 at pci0 dev 29 function 2 "Intel 82801DB USB" rev 0x02: irq 6
ehci0 at pci0 dev 29 function 7 "Intel 82801DB USB" rev 0x02: irq 9
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb0 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x82
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel PRO/1000MT (82541GI)" rev 0x05: irq 10,
address 00:30:18:49:f9:c8
em1 at pci1 dev 1 function 0 "Intel PRO/1000MT (82541GI)" rev 0x05: irq 12,
address 00:30:18:49:f9:c9
ichpcib0 at pci0 dev 31 function 0 "Intel 82801DB LPC" rev 0x02: 24-bit timer
at 3579545Hz
pciide0 at pci0 dev 31 function 1 "Intel 82801DB IDE" rev 0x02: DMA, channel 0
configured to compatibility, channel 1 configured to compatibility
pciide0: channel 0 disabled (no drives)
wd0 at pciide0 channel 1 drive 0: <CF CARD 1GB>
wd0: 1-sector PIO, LBA, 967MB, 1981728 sectors
wd0(pciide0:1:0): using PIO mode 4, DMA mode 2
ichiic0 at pci0 dev 31 function 3 "Intel 82801DB SMBus" rev 0x02: irq 12
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 512MB DDR SDRAM non-parity PC3200CL3.0
auich0 at pci0 dev 31 function 5 "Intel 82801DB AC97" rev 0x02: irq 12, ICH4
AC97
ac97: codec id 0x56494161 (VIA Technologies VT1612A)
ac97: codec features headphone, 18 bit DAC, 18 bit ADC, KS Waves 3D
audio0 at auich0
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at ichpcib0
isadma0 at isa0uvm_pglistalloc: Upper boundary 0xfff000 not on pagemask.
panic: isadmaattach: can not create DMA map
Stopped at Debugger+0x4: leave
Debugger(d09007a0,d137b700,d0a41718,0,d09007a0) at Debugger+0x4
panic(d08249e0,83,d09007a0,d0883204,d0870238) at panic+0x55
isadmaattach(d137b700,d1381740,d0a41770,d137b700,d0a4174c) at isadmaattach+0x72
config_attach(d137b700,d1381740,d0a41770,d06141bc,74006f) at config_attach+0xfd
isascan(d137b700,d1381740,4,1) at isascan+0x14e
config_scan(d06142c4,d137b700,d0a41db0,d135a2c0,1640) at config_scan+0xaf
config_attach(d135a2c0,d086821c,d0a41db0,d0611304,d0795b17) at config_attach+0x
fd
pcib_callback(d135a2c0,2,1f,7,d135be80) at pcib_callback+0x48
config_process_deferred_children(d135be80,0,0,d135afc0,d1359e40) at config_proc
ess_deferred_children+0x59
config_attach(d135afc0,d08666f8,d0a41e70,d04f6088) at config_attach+0x105
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb> ps
PID PPID PGRP UID S FLAGS WAIT COMMAND
* 0 -1 0 0 7 0x80200 swapper
ddb> call uvm_pmr_print
Ranges, use queue:
* [0x1000-0x100000] use=0 nsegs=1 maxsegsz[0]=0x1bdfb maxsegsz[1]=0x0
free=0x37bf6
* [0x0-0x1000] use=1 nsegs=3 maxsegsz[0]=0x5b9 maxsegsz[1]=0x0 free=0xea0
#ranges = 2
0xc
