Date: Tue, 12 Jan 1999 17:12:13 -0500 (EST) From: "Andrew Atrens" <atrens@nortelnetworks.com> To: current@FreeBSD.ORG Cc: lcremean@tidalwave.net Subject: Re: potential ide_pci.c bugster Message-ID: <Pine.BSF.4.05.9901121615040.600-100000@hcarp00g.ca.nortel.com> In-Reply-To: <19990112004945.A68879@tidalwave.net>
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Hi All,
I've been experiencing pci-ide timeouts of the showstopper variety.
Lee has postulated that this has to do with my bus speed 83Mhz .. so I
reclocked to 66Mhz and the behaviour persists.
I've appended the original mail I sent to Lee, along with (just for fun)
my kernel config and dmesg output.
Note that I haven't been able to capture the dmesg output inspired by the
below patch - the system locks up tighter than a drum. I did however
transcribe the following (hopefully relevant bits) by hand ...
wd0: interrupt timeout (status 50 <rdy, seekdone> error 0)
wd0: wdtimeout() DMA status 1 <active>
Interesting thing is this drive, wd0, is about 2 years old and doesn't
support UDMA. While wd1, a new drive, does do UDMA.
My system is current as of yesterday.
I'm not sure why the below patch tickles this bug, any
suggestions/insights you can provide would be greatly appreciated.
Regards,
Andrew.
--
+----------------------------------------------------+
= Andrew Atrens - Nortel Networks (atrens@nortel.ca) =
= P.O. Box 3511, Station C Ottawa, Canada =
= =
= All opinions expressed are mine, not Nortel's. =
+----------------------------------------------------+
(original message follows)
Lee,
Around the middle of December you (actually Mike on behalf of you)
committed a patch to pci_ide.c which has since been hosing my system:
# diff -c /home/cvs/sys/pci/ide_pci.c*
*** /home/cvs/sys/pci/ide_pci.c Mon Jan 11 19:29:54 1999
--- /home/cvs/sys/pci/ide_pci.c.ctm Mon Jan 11 19:28:35 1999
***************
*** 1195,1201 ****
cp = softc.cookies.lh_first;
while(cp) {
! if (cp->ctlr == unit &&
((iobase_wd == 0) || (cp->iobase_wd ==
iobase_wd)))
break;
cp = cp->le.le_next;
--- 1195,1201 ----
cp = softc.cookies.lh_first;
while(cp) {
! if (cp->unit == unit &&
((iobase_wd == 0) || (cp->iobase_wd ==
iobase_wd)))
break;
cp = cp->le.le_next;
With this commit, my system freezes on boot with DMA timeout messages when
it tries to mount root on wd1. It's a total showstopper.
>>> (oops, that should have been wd0)
I disabled DMA (ala wdc0 flags) and everything worked, though of course
more slowly. :) So, instead I chose to back out your change, and wait to
see if anyone else fell in the pit. Since the mailing list seems to be
pretty silent on the topic, maybe it's just me :) ...
I've got an ABIT motherboard with TX chipset, bussed at 83MHz, that seems
to run quick enough:
--root@churchill:/var/log--
# dd if=/dev/rwd0 of=/dev/null bs=1024k count=50
50+0 records in
50+0 records out
52428800 bytes transferred in 10.040942 secs (5221502 bytes/sec)
--root@churchill:/var/log--
# dd if=/dev/rwd1 of=/dev/null bs=1024k count=50
50+0 records in
50+0 records out
52428800 bytes transferred in 4.538576 secs (11551817 bytes/sec)
wd0 doesn't do udma, while wd1 does, with dma disabled both drives perform
comparably.
---
(here's my kernel config)
machine "i386"
cpu "I586_CPU"
ident CHURCHILL
maxusers 32
options USERCONFIG
options INCLUDE_CONFIG_FILE
options SOFTUPDATES
options INET
options FFS
options FFS_ROOT
options NFS
options NFS_ROOT
options MFS
options MFS_ROOT
options "CD9660"
options "CD9660_ROOT"
options "CD9660_ROOTDELAY=20"
options MSDOSFS
options PROCFS
options "COMPAT_43"
options "COMPAT_LINUX"
options USER_LDT
options "VM86"
options VESA
options UCONSOLE
options SYSVSHM
options SYSVSEM
options SYSVMSG
options ATAPI
options ATAPI_STATIC
options PQ_LARGECACHE
options "CPU_WT_ALLOC"
options "NO_MEMORY_HOLE"
options "NO_F00F_HACK"
options NSWAPDEV=2
options "MD5"
config kernel root on wd0 dumps on wd0
controller isa0
controller pnp0
controller pci0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2
disk fd0 at fdc0 drive 0
controller wdc0 at isa? port "IO_WD1" bio irq 14 flags 0xb0ffb0ff
disk wd0 at wdc0 drive 0
disk wd1 at wdc0 drive 1
controller wdc1 at isa? port "IO_WD2" bio irq 15 flags 0xb0ffb0ff
device acd0
device acd1
controller atkbdc0 at isa? port IO_KBD tty
device atkbd0 at isa? tty irq 1
device psm0 at isa? tty irq 12
device vga0 at isa? port ? conflicts
pseudo-device splash
device sc0 at isa? tty
options MAXCONS=16 # number of virtual consoles
options SC_HISTORY_SIZE=200 # number of history buffer lines
device npx0 at isa? port "IO_NPX" iosiz 0x0 flags 0x0 irq 13
device pcm0 at isa? port 0x530 tty irq 10 drq 1 flags 0x0
device sio0 at isa? port "IO_COM1" tty irq 4
device sio1 at isa? port "IO_COM2" tty irq 3
device lpt0 at isa? port "IO_LPT2" tty irq 5
device tw0 at isa? port "IO_LPT3" tty irq 7
device ed0 at isa? port 0x240 net irq 9 iomem ?
pseudo-device loop
pseudo-device ether
pseudo-device sl 2
pseudo-device ppp 2
pseudo-device tun 2
pseudo-device pty 128
pseudo-device gzip
pseudo-device vn
pseudo-device bpfilter 4
(here's dmesg and friends)
(hmm, it seems pnp doesn't see my soundcard anymore ... )
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #4: Mon Jan 11 22:05:55 EST 1999
root@churchill:/home/cvs/sys/compile/CHURCHILL
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 334092111 Hz
CPU: AMD-K6(tm) 3D processor (334.09-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x58c Stepping=12
Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
real memory = 67108864 (65536K bytes)
config> pnp 1 0 os enable irq0 10 drq0 1
config> pnp 1 0 os enable port0 0x220 port1 0x530 port2 0x388
config> pnp 1 0 os enable port3 0x300 port4 0x370
config> quit
avail memory = 62390272 (60928K bytes)
Preloaded elf kernel "kernel1" at 0xf02bc000.
Preloaded userconfig_script "/boot/pnp.conf" at 0xf02bc09c.
Probing for devices on PCI bus 0:
chip0: <Intel 82439TX System Controller (MTXC)> rev 0x01 on pci0.0.0
chip1: <Intel 82371AB PCI to ISA bridge> rev 0x01 on pci0.7.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.7.1
chip2: <Intel 82371AB Power management controller> rev 0x01 on pci0.7.3
vga0: <ATI model 4750 graphics accelerator> rev 0x5c on pci0.11.0
ed1: <NE2000 PCI Ethernet (RealTek 8029)> rev 0x00 int a irq 11 on pci0.13.0
ed1: address 00:40:05:59:30:f0, type NE2000 (16 bit)
Probing for PnP devices:
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 at 0x240-0x25f irq 9 on isa
ed0: address 00:40:05:48:11:c9, type NE2000 (16 bit)
pcm0 not found at 0x530
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 irq 12 on isa
psm0: model Generic PS/2 mouse, device ID 0
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x278-0x27f irq 5 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
tw calibration: delay loop is 21 us.
tw0 at 0x3bc-0x3c3 irq 7 on isa
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 flags 0xb0ffb0ff on isa
wdc0: unit 0 (wd0): <ST52520A>, LBA, DMA, 32-bit, multi-block-16
wd0: 2446MB (5009760 sectors), 621 cyls, 128 heads, 63 S/T, 512 B/S
wdc0: unit 1 (wd1): <QUANTUM FIREBALL EL5.1A>, LBA, DMA, 32-bit, multi-block-16
wd1: 4892MB (10018890 sectors), 623 cyls, 255 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 flags 0xb0ffb0ff on isa
wdc1: unit 0 (atapi): <NEC CD-ROM DRIVE:273/4.25>, removable, iordy
acd0: drive speed 689KB/sec, 256KB cache
acd0: supported read types: CD-DA
acd0: Audio: play, 256 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: no/blank disc inside, unlocked
wdc1: unit 1 (atapi): <HP CD-Writer+ 7200/V:003.01>, removable, dma, iordy
acd1: drive speed 344 - 1034KB/sec, 768KB cache
acd1: supported read types: CD-R, CD-RW, CD-DA, packet track
acd1: supported write types: CD-R, CD-RW, test write
acd1: Audio: play, 128 volume levels
acd1: Mechanism: ejectable tray
acd1: Medium: no/blank disc inside, unlocked, lock protected
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
changing root device to wd1s2e
ffs_mountfs: superblock updated for soft updates
ffs_mountfs: superblock updated for soft updates
ffs_mountfs: superblock updated for soft updates
VESA: set_mode(): 24(18) -> 204(cc)
VESA: set_mode(): 34(22) -> 204(cc)
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