sorry for sending you directly again instead to the kernel-ML. I do so
because the problems are only caused by ide-disk.c. This mail is CCed to
the ML.
I was able to work around the problem for our little environment (about
2000 Computers of 9 different types) with the following dirty hack,
changing from kernel-2.4.21-pre5-ac1:
1150,1151c1150,1151
< drive->head = drive->bios_head = 255;
< drive->sect = drive->bios_sect = 63;
--- > drive->head = drive->bios_head; > drive->sect = drive->bios_sect;
In your mail you wrote that the kernel honors the mapping of existing partitions on the disk. Unfortunately the kernel 2.4.21-pre5-ac1 does not so! I created a primary dos-partition on a Fujitsu-disk attached to a Compaq Notebook Evo N610c using MS-DOS 6.22 fdisk, which bios uses a 240-head mapping, but linux used a 255-head maping at the next boot. This may destroy data on the disk.
In ide-disk.c the following remark is listed at line 1127: * 1. CHS value set by user (whatever user sets will be trusted) * 2. LBA value from target drive (require new ATA feature) * 3. LBA value from system BIOS (new one is OK, old one may break) * 4. CHS value from system BIOS (traditional style)
I think that the priority of LBA from BIOS has to be raised to 2 and the priority of LBA from drive should be lowered to 3. The mapping-problem only appreared with very new drives in some brand-computers using a 240-head mapping from the bios.
We don't know which problems our workaround causes, but we're happy with it and would like to see it in an upcoming release. Why was a 255 head mapping hard coded in the kernel?
--snip--
On Tue, 2003-03-04 at 15:17, Harald.Schaefer@gls-germany.com wrote: > [1.] One line summary of the problem: > ide-drives are sometimes recognized with LBA-Mapping, even if the bios is > configured diffrent
The kernel honours the partition mapping data it finds in the partition table for. Its very hard to use/guess the bios mappings and for many systems its not available hence we do this.
When we find the partition table doesn't seem to agree with the mapping you'll see [PTBL] in the partition info when it probes the disk.
Can you post the query to the linux-kernel list rather than just to me. I'm the IDE guy but people like Andries are the partitioning gurus
--snip-- Hello Alan,
we found a problem with the ide-drivers at some of our Computers.
[1.] One line summary of the problem: ide-drives are sometimes recognized with LBA-Mapping, even if the bios is configured diffrent
[2.] Full description of the problem/report: kernel 2.2.22 was running fine and used the correct bios-mapping every time the kernel 2.4.20 always uses lba-mapping regardless of the bios setting. kernel 2.4.21-pre3 and -pre5 recognize the correct Disc mapping if the bios uses by default LBA. the patch 2.4.21-pre5-ac1 does the same as 2.4.21-pre3/pre5 If the bios uses by default bit shift or large mode the kernel recognize the correct mapping of the disc if a WDC WD400BB-60DGA0 or a Maxtor 4D040H2 is attached. If a FUJITSU MHR2030AT or a Maxtor 6E040L0 is attached the kernel gets confused. See hdparam -i and -I outputs at the end of this document.
We create fdisk partitions with linux and run later dos from one of that partitions. Dos gets confused about the linux mapping of the partion that is different from the bios supplied values.
[3.] Keywords (i.e., modules, networking, kernel): ide, mapping, bios, lba
[4.] Kernel version (from /proc/version): Linux version 2.4.21-pre3 (harri@eisler.fet.uni-hannover.de) (gcc version 2.95.4 20011002 (Debian prerelease)) #5 Mit Jan 22 11:33:07 CET 2003
[5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) not available
[6.] A small shell script or example program which triggers the problem (if possible) not available
[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
[7.2.] Processor information (from /proc/cpuinfo): the problem appears on some new Compaq-Desktops and Notebooks with different CPU's We have seen this also on older HP vli8 (PIII 650) and HP Omnibook 6000 (PIII 600).
Evo N610c Notebook for Example: degpn025w130 # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 Mobile CPU 1.60GHz stepping : 4 cpu MHz : 1594.851 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat p se36 clflush dts acpi mmx fxsr sse sse2 ss ht tm bogomips : 3185.04
Evo N510 Desktop: degpn025w135 # cat proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 CPU 1.80GHz stepping : 4 cpu MHz : 1794.239 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : 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 ht tm bogomips : 3578.26
[7.3.] Module information (from /proc/modules): degpn025w130 # cat /proc/modules nls_cp850 3404 0 (unused) smbfs 32360 1 ipt_reject 2616 1 ipt_masquerade 980 1 ipt_state 388 1 iptable_nat 13740 1 [ipt_masquerade] iptable_filter 1468 1 ip_conntrack 15884 2 [ipt_masquerade ipt_state iptable_nat] ip_tables 10656 7 [ipt_reject ipt_masquerade ipt_state iptable_nat iptable_filter] ds 6604 2 i82365 23076 2 pcmcia_core 43584 0 [ds i82365] e100 50516 1
degpn025w135 # cat /proc/modules nls_cp850 3404 0 (unused) smbfs 32360 1 ipt_reject 2616 1 ipt_masquerade 980 1 ipt_state 388 1 iptable_nat 13740 1 [ipt_masquerade] iptable_filter 1468 1 ip_conntrack 15884 2 [ipt_masquerade ipt_state iptable_nat] ip_tables 10656 7 [ipt_reject ipt_masquerade ipt_state iptable_nat iptable_filter] e100 50516 1
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) degpn025w130 # cat /proc/ioports 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 01f0-01f7 : ide0 03c0-03df : vga+ 03e8-03ef : serial(auto) 03f6-03f6 : ide0 03f8-03ff : serial(auto) 0cf8-0cff : PCI conf1 2000-20ff : PCI device 11c1:0450 2400-243f : PCI device 8086:1038 2400-243f : e100 2440-2447 : PCI device 11c1:0450 3000-3fff : PCI Bus #01 3000-30ff : PCI device 1002:4c57 4000-40ff : PCI device 8086:2485 4400-443f : PCI device 8086:2485 4440-444f : PCI device 8086:248a 4440-4447 : ide0 4448-444f : ide1
degpn025w130 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000f0000-000fffff : System ROM 00100000-0ffcffff : System RAM 00100000-001ce347 : Kernel code 001ce348-002013bf : Kernel data 0ffd0000-0fff0bff : reserved 0fff0c00-0fffbfff : ACPI Non-volatile Storage 0fffc000-0fffffff : reserved 10000000-100003ff : PCI device 8086:248a 40000000-40000fff : PCI device 104c:ac51 40000000-40000fff : i82365 40080000-40080fff : PCI device 104c:ac51 40080000-40080fff : i82365 40100000-40100fff : PCI device 8086:1038 40100000-40100fff : e100 40180000-40180fff : PCI device 1033:0035 40200000-40200fff : PCI device 1033:0035 40280000-402800ff : PCI device 11c1:0450 40300000-403000ff : PCI device 1033:00e0 40400000-404fffff : PCI Bus #01 40400000-4040ffff : PCI device 1002:4c57 48000000-4fffffff : PCI Bus #01 48000000-4fffffff : PCI device 1002:4c57 60000000-6fffffff : PCI device 8086:1a30
degpn025w135 # cat /proc/ioports 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 02f8-02ff : serial(auto) 0376-0376 : ide1 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial(auto) 0cf8-0cff : PCI conf1 1000-103f : PCI device 8086:103b 1000-103f : e100 2000-20ff : PCI device 8086:24c5 2400-243f : PCI device 8086:24c5 2440-245f : PCI device 8086:24c2 2460-247f : PCI device 8086:24c4 24a0-24af : PCI device 8086:24cb 24a0-24a7 : ide0 24a8-24af : ide1
degpn025w135 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000f0000-000fffff : System ROM 00100000-0f7effff : System RAM 00100000-001ce347 : Kernel code 001ce348-002013bf : Kernel data 0f7f0000-0f7fffff : reserved 10000000-100003ff : PCI device 8086:24cb f0000000-f7ffffff : PCI device 8086:2562 f8000000-fbffffff : PCI device 8086:2560 fc400000-fc47ffff : PCI device 8086:2562 fc480000-fc4803ff : PCI device 8086:24cd fc480400-fc4805ff : PCI device 8086:24c5 fc480600-fc4806ff : PCI device 8086:24c5 fc500000-fc500fff : PCI device 8086:103b fc500000-fc500fff : e100 fec00000-ffffffff : reserved
[7.5.] PCI information ('lspci -vvv' as root) sorry, lspci is not available on this linux-bootdisk. output of "cat /proc/pci" instead degpn025w130 # cat /proc/pci PCI devices found: Bus 0, device 0, function 0: Class 0600: PCI device 8086:1a30 (rev 4). Prefetchable 32 bit memory at 0x60000000 [0x6fffffff]. Bus 0, device 1, function 0: Class 0604: PCI device 8086:1a31 (rev 4). Master Capable. Latency=64. Min Gnt=12. Bus 0, device 30, function 0: Class 0604: PCI device 8086:2448 (rev 66). Master Capable. No bursts. Min Gnt=6. Bus 0, device 31, function 0: Class 0601: PCI device 8086:248c (rev 2). Bus 0, device 31, function 1: Class 0101: PCI device 8086:248a (rev 2). IRQ 11. I/O at 0x4440 [0x444f]. Non-prefetchable 32 bit memory at 0x10000000 [0x100003ff]. Bus 0, device 31, function 5: Class 0401: PCI device 8086:2485 (rev 2). IRQ 11. I/O at 0x4000 [0x40ff]. I/O at 0x4400 [0x443f]. Bus 1, device 0, function 0: Class 0300: PCI device 1002:4c57 (rev 0). IRQ 11. Master Capable. Latency=66. Min Gnt=8. Prefetchable 32 bit memory at 0x48000000 [0x4fffffff]. I/O at 0x3000 [0x30ff]. Non-prefetchable 32 bit memory at 0x40400000 [0x4040ffff]. Bus 2, device 4, function 0: Class 0780: PCI device 11c1:0450 (rev 2). IRQ 11. Master Capable. Latency=66. Min Gnt=252.Max Lat=14. Non-prefetchable 32 bit memory at 0x40280000 [0x402800ff]. I/O at 0x2440 [0x2447]. I/O at 0x2000 [0x20ff]. Bus 2, device 6, function 0: Class 0607: PCI device 104c:ac51 (rev 0). IRQ 11. Master Capable. Latency=66. Min Gnt=196.Max Lat=7. Non-prefetchable 32 bit memory at 0x40000000 [0x40000fff]. Bus 2, device 6, function 1: Class 0607: PCI device 104c:ac51 (rev 0). IRQ 11. Master Capable. Latency=66. Min Gnt=196.Max Lat=7. Non-prefetchable 32 bit memory at 0x40080000 [0x40080fff]. Bus 2, device 8, function 0: Class 0200: PCI device 8086:1038 (rev 66). IRQ 10. Master Capable. Latency=66. Min Gnt=8.Max Lat=56. Non-prefetchable 32 bit memory at 0x40100000 [0x40100fff]. I/O at 0x2400 [0x243f]. Bus 2, device 14, function 0: Class 0c03: PCI device 1033:0035 (rev 65). IRQ 10. Master Capable. Latency=64. Min Gnt=1.Max Lat=42. Non-prefetchable 32 bit memory at 0x40180000 [0x40180fff]. Bus 2, device 14, function 1: Class 0c03: PCI device 1033:0035 (rev 65). IRQ 10. Master Capable. Latency=64. Min Gnt=1.Max Lat=42. Non-prefetchable 32 bit memory at 0x40200000 [0x40200fff]. Bus 2, device 14, function 2: Class 0c03: PCI device 1033:00e0 (rev 2). IRQ 10. Master Capable. Latency=64. Min Gnt=16.Max Lat=34. Non-prefetchable 32 bit memory at 0x40300000 [0x403000ff].
degpn025w135 # cat /proc/pci PCI devices found: Bus 0, device 0, function 0: Class 0600: PCI device 8086:2560 (rev 1). Prefetchable 32 bit memory at 0xf8000000 [0xfbffffff]. Bus 0, device 2, function 0: Class 0300: PCI device 8086:2562 (rev 1). IRQ 10. Prefetchable 32 bit memory at 0xf0000000 [0xf7ffffff]. Non-prefetchable 32 bit memory at 0xfc400000 [0xfc47ffff]. Bus 0, device 29, function 0: Class 0c03: PCI device 8086:24c2 (rev 1). IRQ 10. I/O at 0x2440 [0x245f]. Bus 0, device 29, function 1: Class 0c03: PCI device 8086:24c4 (rev 1). IRQ 11. I/O at 0x2460 [0x247f]. Bus 0, device 29, function 7: Class 0c03: PCI device 8086:24cd (rev 1). IRQ 5. Non-prefetchable 32 bit memory at 0xfc480000 [0xfc4803ff]. Bus 0, device 30, function 0: Class 0604: PCI device 8086:244e (rev 129). Master Capable. No bursts. Min Gnt=6. Bus 0, device 31, function 0: Class 0601: PCI device 8086:24c0 (rev 1). Bus 0, device 31, function 1: Class 0101: PCI device 8086:24cb (rev 1). IRQ 10. I/O at 0x24a0 [0x24af]. Non-prefetchable 32 bit memory at 0x10000000 [0x100003ff]. Bus 0, device 31, function 5: Class 0401: PCI device 8086:24c5 (rev 1). IRQ 5. I/O at 0x2000 [0x20ff]. I/O at 0x2400 [0x243f]. Non-prefetchable 32 bit memory at 0xfc480400 [0xfc4805ff]. Non-prefetchable 32 bit memory at 0xfc480600 [0xfc4806ff]. Bus 5, device 8, function 0: Class 0200: PCI device 8086:103b (rev 129). IRQ 5. Master Capable. Latency=66. Min Gnt=8.Max Lat=56. Non-prefetchable 32 bit memory at 0xfc500000 [0xfc500fff]. I/O at 0x1000 [0x103f].
[7.6.] SCSI information (from /proc/scsi/scsi) scsi drivers are not loaded. degpn025w135 # cat /proc/scsi/scsi cat: /proc/scsi/scsi: No such file or directory
[7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant):
[X.] Other notes, patches, fixes, workarounds: if the bios ist forced to use lba-mapping everything is running fine. but in the notebook-bios mapping setting cannot be changed. It is set to "bit shift" on fujitsu disks
some harddisk are recognized with lba-setting, these models are running fine. output of "hdparm -i /dev/hda" and "hdparm -I /dev/hda" of some good disks: hdparm -i /dev/hda Model=Maxtor 4D040H2, FwRev=DAH017K0, SerialNo=D22AKNYE Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80043264 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
hdparm -I /dev/hda Model=aMtxro4 0D042H , FwRev=AD0H710K, SerialNo=2DA2NKEY Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80043264 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
hdparm -i /dev/hda Model=WDC WD400BB-60DGA0, FwRev=05.03E05, SerialNo=WD-WMADK1725099 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=40 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
hdparm -I /dev/hda Model=DW CDW04B0-B06GD0A , FwRev=500.E350, SerialNo=DWW-AMKD715290 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=40 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
and a bad disk, which is recognized with "bit shift"-mapping from the bios:
hdparm -i /dev/hda Model=Maxtor 6E040L0, FwRev=NAR61590, SerialNo=E11G00EE Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
hdparm -I /dev/hda Model=aMtxro6 0E040L , FwRev=AN6R5109, SerialNo=1EG100EE Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=65535/1/63, CurSects=4128705, LBA=yes, LBAsects=78165360 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
another disk that doesn't work
hdparm -i /dev/hda Model=FUJITSU MHR2030AT, FwRev=53BB, SerialNo=NJ36T2813MYW Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=58605120 IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
hdparm -I /dev/hda Model=UFIJST UHM2R30A0 T , FwRev=35BB , SerialNo= JN632T18M3WY Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=65535/1/63, CurSects=4128705, LBA=yes, LBAsects=58605120 IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Harald Schäfer
-- GLS Germany BasissystemeTelefon +49 (0) 66 77 17 466
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