[Mageia-dev] IDE/SATA driver ordering [was Re: Please test dracut (mkinitrd replacement)]

Mon Oct 24 00:00:50 CEST 2011

On Sun, 23 Oct 2011 07:17:33 +0300
+Anssi Hannula <anssi.hannula at iki.fi> wrote:
+
+> On 22.10.2011 16:05, Colin Guthrie wrote:
+> > 'Twas brillig, and David W. Hodgins at 22/10/11 03:10 did gyre and gimble:
+> >> On Thu, 20 Oct 2011 19:29:46 -0400, Colin Guthrie
+> >> <mageia at colin.guthr.ie> wrote:
+> >>
+> >>> sudo -i (or su -)
+> >>> urpmi dracut
+> >>> cd /boot
+> >>> mv initrd-3.1.0-desktop-0.rc10.1.mga2.img initrd-old.img
+> >>> /sbin/installkernel -N 3.1.0-desktop-0.rc10.1.mga2
+> >>
+> >> Worked ok here with lvm for /usr, /home, etc. Still affected by
+> >> https://bugs.mageia.org/show_bug.cgi?id=1525#c73
+> >> just like mkinitrd, putting the loading of pata_acpi before
+> >> the loading of pata_via, which makes my dvd drive unusable
+> >> till I edit the initrd to reverse the load order.
+> >>
+> >> What controls the order it chooses for the loading of modules?
+> > 
+> > Not 100% sure what determines the order or priority here, but hopefully
+> > the same fix will affect both. Not 100% sure tho'.
+> 
+> Didn't look at this issue specifically, but automatically loaded modules
+> should be loaded in the order specified in
+> /lib/modules/foo/modules.order (which I think is used by depmod to
+> generate the dep entries in the correct order for modprobe), which
+> correctly contains pata_acpi after pata_via.
+> 
+
+I have a smimilar problem with all boxes with IDE drives. Up to kernels
+3.0.x, thay just worked with ata-piix, and drives were named as sdx.
+With kernel 3.1.x, they get driven by old IDE driver, and named as hdX.
+Don't know which is the reason.
+Looking at that modules.order, they look the same for both kernels.
+IDE drivers are listed first in modules.order.
+
+I have two equal boxes, in one of them I re-made initrds with --preload=ata-piix.
+Then it boots as before, sdX drives.
+In the 'good' box, lsinitrd | grep ata gives:
+
+bran:/boot# lsinitrd initrd-3.1.0-desktop-0.rc10.1.mga2.img | grep ata
+-rw-r--r--   1 root     root        99345 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/libata.ko.gz
+-rw-r--r--   1 root     root         3108 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/ata_generic.ko.gz
+-rw-r--r--   1 root     root         8838 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/ata_piix.ko.gz
+-rw-r--r--   1 root     root         2747 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/pata_acpi.ko.gz
+echo "Loading ata-piix module"
+modprobe -q ata-piix
+echo "Loading libata module"
+modprobe -q libata
+echo "Loading pata_acpi module"
+modprobe -q pata_acpi
+echo "Loading ata_generic module"
+modprobe -q ata_generic
+echo "Loading ata_piix module"
+modprobe -q ata_piix
+init
+
+In the 'bad' one:
+
+lugh:/boot# lsinitrd initrd-3.1.0-desktop-0.rc10.1.mga2.img | grep ata
+-rw-r--r--   1 root     root        99345 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/libata.ko.gz
+-rw-r--r--   1 root     root         2747 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/pata_acpi.ko.gz
+-rw-r--r--   1 root     root         8838 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/ata_piix.ko.gz
+-rw-r--r--   1 root     root         3108 Oct 18 07:31 lib/modules/3.1.0-desktop-0.rc10.1.mga2/ata_generic.ko.gz
+echo "Loading libata module"
+modprobe -q libata
+echo "Loading ata_generic module"
+modprobe -q ata_generic
+echo "Loading pata_acpi module"
+modprobe -q pata_acpi
+echo "Loading ata_piix module"
+modprobe -q ata_piix
+
+So for some reason ata-generic is put before SATA (reverse order from modules.order ???),
+and probably it pulls ATA piix.ko module on harware detection.
+Should not ata-piix be tried before, and use ata-generic for whatever remains without
+a responsible driver ?
+I think the initrd generation is putting the load of specific drivers _after_ the generic ones.
+
+Boot log in the good box:
+
+SCSI subsystem initialized
+libata version 3.00 loaded.
+ata_piix 0000:00:1f.1: version 2.13
+ata_piix 0000:00:1f.1: PCI INT A -> GSI 18 (level, low) -> IRQ 18
+ata_piix 0000:00:1f.1: setting latency timer to 64
+scsi0 : ata_piix
+scsi1 : ata_piix
+ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf000 irq 14
+ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf008 irq 15
+ata_piix 0000:00:1f.2: PCI INT A -> GSI 18 (level, low) -> IRQ 18
+ata_piix 0000:00:1f.2: MAP [ P0 -- P1 -- ]
+ata_piix 0000:00:1f.2: setting latency timer to 64
+scsi2 : ata_piix
+scsi3 : ata_piix
+ata3: SATA max UDMA/133 cmd 0xc000 ctl 0xc400 bmdma 0xd000 irq 18
+ata4: SATA max UDMA/133 cmd 0xc800 ctl 0xcc00 bmdma 0xd008 irq 18
+ata2.00: ATAPI: CD-232E, 1.0A, max UDMA/33
+ata2.00: configured for UDMA/33
+ata1.00: ATA-6: ST3120022A, 3.06, max UDMA/100
+ata1.00: 234441648 sectors, multi 16: LBA48 
+ata1.00: configured for UDMA/100
+scsi 0:0:0:0: Direct-Access     ATA      ST3120022A       3.06 PQ: 0 ANSI: 5
+scsi 1:0:0:0: CD-ROM            TEAC     CD-232E          1.0A PQ: 0 ANSI: 5
+Uniform Multi-Platform E-IDE driver
+ide-gd driver 1.18
+sd 0:0:0:0: [sda] 234441648 512-byte logical blocks: (120 GB/111 GiB)
+sd 0:0:0:0: [sda] Write Protect is off
+sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
+sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
+ sda: sda1 sda2 sda3
+sd 0:0:0:0: [sda] Attached SCSI disk
+
+
+In the bad one:
+
+Uniform Multi-Platform E-IDE driver
+ide-gd driver 1.18
+SCSI subsystem initialized
+libata version 3.00 loaded.
+pata_acpi 0000:00:1f.1: PCI INT A -> GSI 18 (level, low) -> IRQ 18
+pata_acpi 0000:00:1f.1: setting latency timer to 64
+pata_acpi 0000:00:1f.1: PCI INT A disabled
+pata_acpi 0000:00:1f.2: PCI INT A -> GSI 18 (level, low) -> IRQ 18
+pata_acpi 0000:00:1f.2: setting latency timer to 64
+pata_acpi 0000:00:1f.2: PCI INT A disabled
+piix 0000:00:1f.1: IDE controller (0x8086:0x24db rev 0x02)
+PIIX_IDE 0000:00:1f.1: PCI INT A -> GSI 18 (level, low) -> IRQ 18
+piix 0000:00:1f.1: not 100% native mode: will probe irqs later
+PIIX_IDE 0000:00:1f.1: setting latency timer to 64
+    ide0: BM-DMA at 0xf000-0xf007
+    ide1: BM-DMA at 0xf008-0xf00f
+Probing IDE interface ide0...
+hda: ST3120022A, ATA DISK drive
+hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
+hda: UDMA/100 mode selected
+Probing IDE interface ide1...
+hdc: CD-232E, ATAPI CD/DVD-ROM drive
+hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO4
+hdc: UDMA/33 mode selected
+ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
+ide1 at 0x170-0x177,0x376 on irq 15
+hda: max request size: 512KiB
+hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=16383/255/63
+hda: cache flushes supported
+ hda: hda1 hda2 hda3
+
+lspcidrake lists ata-piix for the controller in both boxes.
+I have tried adding ata-piix in modprobe.preload, but no luck.
+Where can I put the preload for mkinitrd ?
+
+TIA
+