1. Problem: ALI15x3, 200GB HD, dma broken, no_lba48_dma ===========
2. Full description: ====================
When booting the 2.6.11 kernel on my Asus P5A I experience dma timeout expiries. From the dmesg output below, one can see that it does not have any problems with a 120GB Maxtor hard disk (hda). When it tries to read hdb, however, four DMA timeout expiries occur. hdb is a 200GB Maxtor hard disk, from which the first 137 GB are partitioned.
After the dma timeouts, the system proceeds booting. DMA, however is turned off completely on hdb.
The problem seems to be that ide-disk.c tries to use pio mode for
blocks > 137 GB (which is good), and lba48 + dma for blocks <= 137GB
(which is known to be a problem, i.e., this is why the no_lba48_dma field was introduced in the first place). Attached is a small patch
that makes ide-disk.c use pio mode for blocks > 137 GB, and lba dma
(instead of lba48 dma) for blocks <= 137 GB.
3. Keywords: dma timeout expiry, ALI15x3, 200GB hard disk, lba48 dma. ============
4. Kernel version: Linux version 2.6.11 ([EMAIL PROTECTED]) (gcc version 3.3.4) #1 Wed Mar 2 21:24:58 CET 2005
7.1 Software: =============
If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes.
Linux thelonious 2.6.11 #1 Wed Mar 2 21:24:58 CET 2005 i586 unknown unknown GNU/Linux
Gnu C 3.3.4 Gnu make 3.80 binutils 2.15.90.0.3 util-linux 2.12a mount 2.12a module-init-tools 3.0 e2fsprogs 1.35 jfsutils 1.1.6 reiserfsprogs 3.6.17 reiser4progs line xfsprogs 2.6.13 quota-tools 3.12. PPP 2.4.2 nfs-utils 1.0.6 Linux C Library 2.3.2 Dynamic linker (ldd) 2.3.2 Linux C++ Library 5.0.6 Procps 3.2.1 Net-tools 1.60 Kbd 1.12 Sh-utils 5.2.1 udev 026 Modules Loaded ppp_deflate zlib_deflate zlib_inflate bsd_comp r128 drm ppp_synctty ipv6 ppp_generic slhc ipt_REJECT ipt_state iptable_filter 3c59x mii nls_iso8859_1 nls_cp437 vfat fat w83781d i2c_sensor i2c_isa i2c_core ip_nat_snmp_basic ip_nat_irc ip_nat_ftp iptable_nat ip_conntrack_irc ip_conntrack_ftp ipt_conntrack ip_conntrack ip_tables ohci_hcd agpgart lp parport_pc parport ext3 jbd
7.2 /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 5 model : 8 model name : AMD-K6(tm) 3D processor stepping : 12 cpu MHz : 501.101 cache size : 64 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 pge mmx pni syscall 3dnow k6_mtrr bogomips : 993.28
7.3 /proc/modules =================
ppp_deflate 4864 0 - Live 0xd6a1d000 zlib_deflate 22040 1 ppp_deflate, Live 0xd7293000 zlib_inflate 17024 1 ppp_deflate, Live 0xd728d000 bsd_comp 5632 0 - Live 0xd6a14000 r128 41600 1 - Live 0xd6a31000 drm 57876 2 r128, Live 0xd6a21000 ppp_synctty 8064 1 - Live 0xd69e8000 ipv6 231040 12 - Live 0xd6a52000 ppp_generic 24468 7 ppp_deflate,bsd_comp,ppp_synctty, Live 0xd6a07000 slhc 6400 1 ppp_generic, Live 0xd69ed000 ipt_REJECT 5376 1 - Live 0xd69f0000 ipt_state 1792 3 - Live 0xd69eb000 iptable_filter 2432 1 - Live 0xd69c4000 3c59x 38440 0 - Live 0xd69f3000 mii 3968 1 3c59x, Live 0xd69c2000 nls_iso8859_1 3968 1 - Live 0xd69c0000 nls_cp437 5632 1 - Live 0xd698c000 vfat 12032 1 - Live 0xd69e1000 fat 34844 1 vfat, Live 0xd69cd000 w83781d 31016 0 - Live 0xd69d8000 i2c_sensor 2944 1 w83781d, Live 0xd6984000 i2c_isa 1920 0 - Live 0xd6982000 i2c_core 18960 3 w83781d,i2c_sensor,i2c_isa, Live 0xd69c7000 ip_nat_snmp_basic 12292 0 - Live 0xd6987000 ip_nat_irc 1920 0 - Live 0xd484f000 ip_nat_ftp 2560 0 - Live 0xd484d000 iptable_nat 20316 3 ip_nat_irc,ip_nat_ftp, Live 0xd4879000 ip_conntrack_irc 70672 1 ip_nat_irc, Live 0xd69ad000 ip_conntrack_ftp 71440 1 ip_nat_ftp, Live 0xd699a000 ipt_conntrack 2176 0 - Live 0xd4835000 ip_conntrack 38680 8 ipt_state,ip_nat_snmp_basic,ip_nat_irc,ip_nat_ftp,iptable_nat,ip_conntrack_irc,ip_conntrack_ftp,ipt_conntrack, Live 0xd698f000 ip_tables 19712 5 ipt_REJECT,ipt_state,iptable_filter,iptable_nat,ipt_conntrack, Live 0xd4873000 ohci_hcd 18952 0 - Live 0xd4847000 agpgart 27176 1 drm, Live 0xd483f000 lp 9672 0 - Live 0xd4812000 parport_pc 23492 1 - Live 0xd4817000 parport 31688 2 lp,parport_pc, Live 0xd482c000 ext3 127368 6 - Live 0xd4852000 jbd 51096 1 ext3, Live 0xd481e000
7.4 /proc/ioports ================= 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-006f : keyboard 0070-0077 : rtc 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 0294-0297 : pnp 00:01 0376-0376 : ide1 0378-037a : parport0 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial 040b-040b : pnp 00:01 0480-049f : pnp 00:01 04d6-04d6 : pnp 00:01 0cf8-0cff : PCI conf1 5c20-5c3f : 0000:00:03.0 a000-a00f : 0000:00:0f.0 a000-a007 : ide0 a008-a00f : ide1 a400-a43f : 0000:00:0d.0 a400-a43f : 0000:00:0d.0 a800-a87f : 0000:00:0b.0 b000-b01f : 0000:00:0b.0 b400-b43f : 0000:00:0a.0 b800-b87f : 0000:00:09.0 b800-b87f : 0000:00:09.0 d000-dfff : PCI Bus #01 d800-d8ff : 0000:01:00.0 e800-e81f : motherboard e800-e81f : pnp 00:01 ec00-ec3f : motherboard ec00-ec03 : PM1a_EVT_BLK ec04-ec05 : PM1a_CNT_BLK ec08-ec0b : PM_TMR ec18-ec1b : GPE0_BLK ec1c-ec1f : GPE1_BLK ec30-ec30 : PM2_CNT_BLK
/proc/iomem ===========
00000000-0009ffff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000cffff : Video ROM
000d0000-000d07ff : Adapter ROM
000f0000-000fffff : System ROM
00100000-13ffbfff : System RAM
00100000-00305cec : Kernel code
00305ced-003d03ff : Kernel data
13ffc000-13ffefff : ACPI Tables
13fff000-13ffffff : ACPI Non-volatile Storage
da800000-da80007f : 0000:00:09.0
db000000-db000fff : 0000:00:02.0
db000000-db000fff : ohci_hcd
db800000-dbffffff : PCI Bus #01
db800000-db803fff : 0000:01:00.0
db800000-db803fff : aty128fb MMIO
dc000000-dfffffff : 0000:00:00.0
e3f00000-e7ffffff : PCI Bus #01
e4000000-e7ffffff : 0000:01:00.0
e4000000-e7ffffff : aty128fb FB
ffff0000-ffffffff : reserved7.5 lspci -vvv ==============
00:00.0 Host bridge: ALi Corporation M1541 (rev 04)
Subsystem: ALi Corporation ALI M1541 Aladdin V/V+ AGP System Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 64
Region 0: Memory at dc000000 (32-bit, non-prefetchable) [size=64M]
Capabilities: [b0] AGP version 1.0
Status: RQ=29 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit- FW- AGP3- Rate=x1,x2
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW-
Rate=<none>00:01.0 PCI bridge: ALi Corporation M1541 PCI to AGP Controller (rev 04)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: db800000-dbffffff
Prefetchable memory behind bridge: e3f00000-e7ffffff
BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) (prog-if 10
[OHCI])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64 (20000ns max)
Interrupt: pin A routed to IRQ 12
Region 0: Memory at db000000 (32-bit, non-prefetchable) [size=4K]00:03.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
Subsystem: ALi Corporation M7101 Power Management Controller [PMU]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV] (rev
c3)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort+
<MAbort+ >SERR- <PERR-
Latency: 000:09.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 74)
Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management
NIC
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at b800 [size=128]
Region 1: Memory at da800000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-00:0a.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 08)
Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (3000ns min, 32000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at b400 [size=64]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-00:0b.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24
[Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01)
Subsystem: VIA Technologies Inc.: Unknown device 3630
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at b000 [size=32]
Region 1: I/O ports at a800 [size=128]
Capabilities: [80] Power Management version 1
Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-00:0d.0 Ethernet controller: 3Com Corporation 3c900 10Mbps Combo [Boomerang]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (750ns min, 2000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at a400 [size=64]
Expansion ROM at <unassigned> [disabled] [size=64K]00:0f.0 IDE interface: ALi Corporation M5229 IDE (rev c1) (prog-if 8a [Master
SecP PriP])
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 1000ns max)
Interrupt: pin A routed to IRQ 0
Region 4: I/O ports at a000 [size=16]01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128 PF/PRO AGP 4x
TMDS (prog-if 00 [VGA])
Subsystem: Connect Components Ltd: Unknown device 5046
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64 (2000ns min), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e4000000 (32-bit, prefetchable) [size=64M]
Region 1: I/O ports at d800 [size=256]
Region 2: Memory at db800000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at e3fe0000 [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit- FW- AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP- GART64- 64bit- FW-
Rate=<none>
Capabilities: [5c] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-7.6 /proc/scsi/scsi =================== Attached devices:
7.7 /proc/ide/ali =================
Ali M15x3 Chipset.
------------------
PCI Clock: 33.
CD_ROM FIFO:No , CD_ROM DMA:Yes
FIFO Status: contains 0 Words, runs.-------------------primary channel-------------------secondary channel---------
channel status: Off Off both channels togth: Yes Yes Channel state: OK OK Add. Setup Timing: 8T 8T Command Act. Count: 8T 8T Command Rec. Count: 16T 16T
----------------drive0-----------drive1------------drive0-----------drive1------
DMA enabled: Yes No Yes Yes FIFO threshold: 8 Words 8 Words 4 Words 4 Words FIFO mode: FIFO On FIFO On FIFO Off FIFO Off Dt RW act. Cnt 3T 3T 3T 3T Dt RW rec. Cnt 1T 1T 1T 1T
-----------------------------------UDMA Timings--------------------------------
UDMA: OK OK No No UDMA timings: 2.5T 2.5T 2.5T 2.5T
dmesg output: =============
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ALI15X3: IDE controller at PCI slot 0000:00:0f.0
ACPI: PCI interrupt 0000:00:0f.0[A]: no GSI - using IRQ 0
ALI15X3: chipset revision 193
ALI15X3: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xa000-0xa007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xa008-0xa00f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: Maxtor 6Y120L0, ATA DISK drive
hdb: Maxtor 6Y200P0, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: PLEXTOR DVDR PX-708A, ATAPI CD/DVD-ROM drive
hdd: PLEXTOR CD-R PX-W2410A, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(33)
hda: cache flushes supported
hda: hda1 hda2 hda3 < hda5 hda6 hda7 >
hdb: max request size: 128KiB
hdb: cannot use LBA48 DMA - PIO mode will be used for accessing sectors >
268435456
hdb: 398297088 sectors (203928 MB) w/7936KiB Cache, CHS=24792/255/63, UDMA(33)
hdb: cache flushes supported
hdb:<4>hdb: dma_timer_expiry: dma status == 0x61
hdb: DMA timeout error
hdb: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }ide: failed opcode was: unknown
spurious 8259A interrupt: IRQ7.
hdb1 hdb2 <<4>hdb: dma_timer_expiry: dma status == 0x61
hdb: DMA timeout error
hdb: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }ide: failed opcode was: unknown
hdb5<4>hdb: dma_timer_expiry: dma status == 0x61
hdb: DMA timeout error
hdb: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }ide: failed opcode was: unknown
hdb6<4>hdb: dma_timer_expiry: dma status == 0x61
hdb: DMA timeout error
hdb: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }ide: failed opcode was: unknown hdb7 hdb8 > hdc: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, (U)DMA Uniform CD-ROM driver Revision: 3.20 hdd: ATAPI 40X CD-ROM CD-R/RW drive, 4096kB Cache, (U)DMA
X. Notes: =========
- I also experienced this problem with the 2.4.9 kernel; - It seems that a similar problem has been reported to alt.os.linux.mandrake by a certain Shibu on November 25, 2004: http://groups.google.nl/groups?q=ali15x3+dma+timeout+2.6&hl=nl&lr=&selm=Tulpd.185095%24Np3.7506842%40ursa-nb00s0.nbnet.nb.ca&rnum=1 - Carefull reading of ide-disk.c reveals a potential cause: while the no_lba48_dma check makes sure we use pio mode for the blocks > 137 GB, it still lets us use lba48 + dma for all blocks <= 137 GB, which does not work on the ALI 1543c. - Indeed, after applying the attached patch, (i) the DMA timeouts at boot time disappear, (ii) the blocks above 137 GB are accessible, (iii) DMA works properly again for blocks below 137 GB.
diff -Naur linux-2.6.11/drivers/ide/ide-disk.c
linux-2.6.11-alim15x3/drivers/ide/ide-disk.c
--- linux-2.6.11/drivers/ide/ide-disk.c 2005-03-02 08:38:07.000000000 +0100
+++ linux-2.6.11-alim15x3/drivers/ide/ide-disk.c 2005-03-04
11:14:14.000000000 +0100
@@ -138,6 +138,8 @@
if (!dma) {
ide_init_sg_cmd(drive, rq);
ide_map_sg(drive, rq);
+ } else if (lba48 && hwif->no_lba48_dma) {
+ lba48 = 0;
}
if (IDE_CONTROL_REG)
@@ -146,7 +148,7 @@
/* FIXME: SELECT_MASK(drive, 0) ? */
if (drive->select.b.lba) {
- if (drive->addressing == 1) {
+ if (lba48) {
task_ioreg_t tasklets[10];
pr_debug("%s: LBA=0x%012llx\n", drive->name, block);
