I've put up a -ide2 patch at
http://zeniv.linux.org.uk/~alan/IDE
Tried it on a Intel 815 mainboard with ICH2, 1 IDE disk and 1 Sony CDROM
that had problems before (DMA timeout, PIO only, since about 2.4.21).
Got the following panic. First it paused several seconds after
scsi1 : ata_piix
and then gave the panic + double fault.
ata1: PATA max UDMA/66 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14
ata1: dev 0 ATA-5, max UDMA/100, 40132503 sectors: LBA
ata1: dev 0 configured for UDMA/66
scsi0 : ata_piix
Vendor: ATA Model: QUANTUM FIREBALL Rev: A1Y.
Type: Direct-Access ANSI SCSI revision: 05
ata2: PATA max UDMA/66 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15
ata2: dev 0 ATAPI, max UDMA/33
ata2: dev 0 configured for UDMA/33
scsi1 : ata_piix
ata2: command 0xa0 timeout, stat 0xd0 host_stat 0x24
ata2: translated ATA stat/err 0xd0/00 to SCSI SK/ASC/ASCQ 0xb/47/00
SCSI device sda: 40132503 512-byte hdwr sectors (20548 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back
int3: 0000 [#1]
CPU: 0
EIP: 0060:[<c0148711>] Not tainted VLI
EFLAGS: 00000282 (2.6.16-rc2-PATA)
EIP is at get_super+0x1/0x80
eax: c146d040 ebx: c146d040 ecx: dfe83db8 edx: 00000001
esi: 00000000 edi: 00000000 ebp: 00000000 esp: dfe83db4
ds: 007b es: 007b ss: 0068
Process swapper (pid: 1, threadinfo=dfe83000 task=dfe82a30)
Stack: <0>00000000 c01441e9 c146d040 00000000 c01ac931 c146d040 dfc97ec0 c016ff4e
c01ed05e dfcbf120 c146d040 dfc97ec0 c02b7153 dfe83e1c c146d040 dfc97ec0
00000000 00000000 c0149a31 c146d04c 00000000 dfe83ea0 c146d040 00000001
Call Trace:
[<c01441e9>] fsync_bdev+0x9/0x30
[<c01ac931>] invalidate_partition+0x21/0x40
[<c016ff4e>] rescan_partitions+0x2e/0x210
[<c01ed05e>] get_device+0xe/0x20
[<c02b7153>] sd_open+0x43/0x100
[<c0149a31>] do_open+0x201/0x280
[<c0149b53>] blkdev_get+0x53/0x60
[<c0170207>] register_disk+0xd7/0xf0
[<c01ac492>] add_disk+0x32/0x40
[<c01ac420>] exact_match+0x0/0x10
[<c01ac450>] exact_lock+0x0/0x10
[<c02b892f>] sd_probe+0x21f/0x300
[<c01ee6d0>] __driver_attach+0x0/0x60
[<c01ee608>] driver_probe_device+0x38/0xa0
[<c01ee72a>] __driver_attach+0x5a/0x60
[<c01edcf8>] bus_for_each_dev+0x38/0x60
[<c01ee4e1>] driver_attach+0x11/0x20
[<c01ee6d0>] __driver_attach+0x0/0x60
[<c01edfca>] bus_add_driver+0x5a/0x100
[<c01eea10>] klist_devices_get+0x0/0x10
[<c0100311>] init+0x81/0x1e0
[<c0100290>] init+0x0/0x1e0
[<c0100bd5>] kernel_thread_helper+0x5/0x10
Code: 14 00 00 00 89 44 24 58 8b 44 24 2c 89 44 24 5c 8b 44 24 7c e8 01 d1 06 00 85 c0 74 c7 bb f2 ff ff ff eb c0 8d b6 00 00 00 00 56 <85> c0 53 89 c6 75 08 31 db 89 d8 5b 5e c3 90 8b 1d 90 6f 37 c0
<0>Kernel panic - not syncing: Attempted to kill init!
double fault, gdt at c036f000 [255 bytes]
double fault, tss at c0370000
eip = c011270a, esp = dfe83ce0
eax = 00000000, ebx = 00000000, ecx = c043d280, edx = 00000000
esi = dfe82a30, edi = 00000000
--
Meelis Roos ([email protected])
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