Date: Mon, 24 Apr 2000 12:03:57 +0900 From: Osamu MIHARA <mihara@prd.fc.nec.co.jp> To: dillon@apollo.backplane.com, luoqi@watermarkgroup.com Cc: bbeck@mindmaker.com, smp@FreeBSD.ORG Subject: Re: Patch works with Dell 2450 (Re: Multiple APIC support) Message-ID: <861z3w42ua.wl@oz.prd.fc.nec.co.jp> In-Reply-To: In your message of "Sun, 23 Apr 2000 11:43:24 -0700 (PDT)" <200004231843.LAA63088@apollo.backplane.com> References: <39023622.8777F483@mindmaker.com> <200004231843.LAA63088@apollo.backplane.com>
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At Sun, 23 Apr 2000 11:43:24 -0700 (PDT),
Matthew Dillon <dillon@apollo.backplane.com> wrote:
> It looks like Luoqi has committed & MFC'd the patch! I would like to
> take this opportunity to congratulate Luoqi (and those that provided
> the excellent bug reports) on locating and fixing this problem. The
> issue with SMP breakage on the Dell boxes has been with us for a while
> and it's nice to see progress!
>
> While there are certainly going to be continuing issues with SMP
> compatibility (for example, the NEC box, which is still an open issue),
> getting it working on Dell boxes was a major hurdle due to the number
> of people using Dell SMP boxes.
Banzai! Luoqi's patch also works for my NEC box with RCC LE chipset.
Thank you, Luoqi and other guys!
BTW, there still be a panic problm in the other NEC box (with Intel
chipset, second IO-APIC enabled). As long as the second IO-APIC is
disabled, this machine works fine with SMP kernel, so the problem is
not critical for my case. However, I put some information for this
issue.
The panic seems to be caused in bus_dmamem_free() around
../../i386/i386/busdma_machdep.c:358 (5.0-CURRENT).
Here is the list from symbol list.
(kgdb) list *0xc02cb368
0xc02cb368 is in bus_dmamem_free (../../i386/i386/busdma_machdep.c:358).
353 * NULL
354 */
355 if (map != NULL)
356 panic("bus_dmamem_free: Invalid map freed\n");
357 /* XXX There is no "contigfree" and "free" doesn't work */
358 if ((dmat->maxsize <= PAGE_SIZE) && dmat->lowaddr >= ptoa(Maxmem
))
359 free(vaddr, M_DEVBUF);
360 }
361
362 #define BUS_DMAMAP_NSEGS ((BUS_SPACE_MAXSIZE / PAGE_SIZE) + 1)
And here is the boot message, 'trace' and other info from DDB.
bus_dmamem_free() is called from ahc_free().
Copyright (c) 1992-2000 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #6: Mon Apr 24 10:37:29 JST 2000
root@swd-poseidon.prd.fc.nec.co.jp:/usr/src/sys/compile/POSEIDON
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium/P54C (98.20-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x525 Stepping = 5
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory = 100663296 (98304K bytes)
avail memory = 93732864 (91536K bytes)
Programming 16 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
Programming 16 pins in IOAPIC #1
IOAPIC #1 intpin 0 -> irq 2
IOAPIC #1 intpin 1 -> irq 16
IOAPIC #1 intpin 2 -> irq 17
IOAPIC #1 intpin 3 -> irq 18
IOAPIC #1 intpin 4 -> irq 19
IOAPIC #1 intpin 5 -> irq 20
IOAPIC #1 intpin 6 -> irq 21
IOAPIC #1 intpin 7 -> irq 22
IOAPIC #1 intpin 12 -> irq 23
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00030010, at 0xfee00000
cpu1 (AP): apic id: 3, version: 0x00030010, at 0xfee00000
io0 (APIC): apic id: 14, version: 0x000f0011, at 0xfec00000
io1 (APIC): apic id: 13, version: 0x000f0011, at 0xfff7ec00
Intel Pentium detected, installing workaround for F00F bug
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 824?? host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82375EB PCI-EISA bridge> at device 14.0 on pci0
eisa0: <EISA bus> on isab0
mainboard0: <INT3190 (System Board)> on eisa0 slot 0
ep0: <3Com 3C579-TP EISA Network Adapter> at 0x2000-0x200f, 0x2c80-0x2c89
ep0: irq 5 (level) on eisa0 slot 2
ep0: Ethernet address 00:20:af:ee:b5:04
ep0: supplying EUI64: 00:20:af:ff:fe:ee:b5:04
isa0: <ISA bus> on isab0
chip1: <> mem 0xfff7ec00-0xfff7efff at device 15.0 on pci0
pcib1: <Intel 824?? host to PCI bridge> on motherboard
pci1: <PCI bus> on pcib1
ahc0: <Adaptec aic7870 SCSI adapter> port 0xfc00-0xfcff mem 0xff9fe000-0xff9feff
f irq 23 at device 13.0 on pci1
ahc0: Using left over BIOS settings
ahc0: aic7870 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7870 SCSI adapter> port 0xf800-0xf8ff mem 0xff9ff000-0xff9ffff
f at device 14.0 on pci1
Fatal trap 12: page fault while in kernel mode
mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
fault virtual address = 0x1c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc02cb368
stack pointer = 0x10:0xc0411e54
frame pointer = 0x10:0xc0411e54
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
interrupt mask = net tty bio cam <- SMP: XXX
kernel: type 12 trap, code=0
Stopped at bus_dmamem_free+0x18: cmpl $0x1000,0x1c(%edx)
db> x/I
bus_dmamem_free+0x18: cmpl $0x1000,0x1c(%edx)
db> trace
bus_dmamem_free(0,0,0,c0df3200,7) at bus_dmamem_free+0x18
ahc_free(c0df3200) at ahc_free+0x44b
ahc_free(c0df3200,c0df1048,c0dfcf00,c0dfcc00,4) at ahc_free+0xd
read_seeprom(c0dfcc00,c0dfcc00,c0df4680,c0dfcf00,0) at read_seeprom+0x136c
device_probe_and_attach(c0dfcc00) at device_probe_and_attach+0x9e
bus_generic_attach(c0dfcf00,c0dfcf00,c0df4780,c0df4680,0) at bus_generic_attach+
0x16
device_probe_and_attach(c0dfcf00) at device_probe_and_attach+0x9e
bus_generic_attach(c0df4680,c0df4680,c0a7f800,c0df4780,0) at bus_generic_attach+
0x16
device_probe_and_attach(c0df4680) at device_probe_and_attach+0x9e
bus_generic_attach(c0df4780,c0d95048,c0411f70,c01abcea,c0df4780) at bus_generic_
attach+0x16
rel_mplock(c0df4780,c0df4780,c0368770,419000,0) at rel_mplock+0x1ad
device_probe_and_attach(c0df4780) at device_probe_and_attach+0x9e
root_bus_configure(c0a7f800,c033d72c,0) at root_bus_configure+0x16
atomic_subtract_long(0,40fc00,419000,0,c0122136) at atomic_subtract_long+0x3e
mi_startup(c0411fb4,0,0,a04,0) at mi_startup+0x70
btext() at btext+0xb6
db> show all procs
pid proc addr uid ppid pgrp flag stat wmesg wchan cmd
0 c0390720 c0410000 0 0 0 000204 2 swapper
db> show registers
cs 0x8 gd_npxproc
ds 0x10 gd_switchtime
es 0x10 gd_switchtime
fs 0x18 gd_common_tss
ss 0x10 gd_switchtime
eax 0
ecx 0x1
edx 0
ebx 0
esp 0xc0411e54
ebp 0xc0411e54
esi 0xc0df32fc
edi 0x12 gd_switchtime+0x2
eip 0xc02cb368 bus_dmamem_free+0x18
efl 0x90246
bus_dmamem_free+0x18: cmpl $0x1000,0x1c(%edx)
db> show map/f
Task map 0xc02cb368: pmap=0x458b0000, nentries=60485, version=205666568
Fatal trap 12: page fault while in kernel mode
mp_lock = 00000003; cpuid = 0; lapic.id = 00000000
fault virtual address = 0x7700001c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc029fca4
stack pointer = 0x10:0xc0411c7c
frame pointer = 0x10:0xc0411c88
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
interrupt mask = net tty bio cam <- SMP: XXX
kernel: type 12 trap, code=0
Stopped at bus_dmamem_free+0x18: cmpl $0x1000,0x1c(%edx)
db> show object/f
Object 0xc02cb368: type=139, size=0x768dc3, res=-1983633149, ref=-2082109099,
flags=0xc120
Fatal trap 12: page fault while in kernel mode
mp_lock = 00000004; cpuid = 0; lapic.id = 00000000
fault virtual address = 0x7d83f88d
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc02a2638
stack pointer = 0x10:0xc0411c5c
frame pointer = 0x10:0xc0411c88
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
interrupt mask = net tty bio cam <- SMP: XXX
kernel: type 12 trap, code=0
Stopped at bus_dmamem_free+0x18: cmpl $0x1000,0x1c(%edx)
db>
--
Osamu MIHARA // NEC Printers Division
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