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Bug#349185: linux-source-2.6.15: ICH5 in trouble with ata_piix and piix

Package: linux-source-2.6.15
Version: 2.6.15-3
Severity: normal


I've always used CONFIG_BLK_DEV_IDE_SATA (support of older SATA
controller as /dev/hd*) with 2.6 kernel, because CONFIG_SCSI_ATA_PIIX
(/dev/sd* for SATA) is too much slower with my ICH5 SATA controller
(mother board is an Intel D865PERL[K]); even standard Debian kernel as
linux-image-2.6.15-1-686-smp (and older) is/was slow.

With kernel 2.6.15 CONFIG_SCSI_ATA_PIIX is at the same time slower but I
can't use CONFIG_BLK_DEV_IDE_SATA because I get very often:

irq 169: nobody cared (try booting with the "irqpoll" option)
 [__report_bad_irq+36/127] __report_bad_irq+0x24/0x7f
 [note_interrupt+98/178] note_interrupt+0x62/0xb2
 [__do_IRQ+221/231] __do_IRQ+0xdd/0xe7
 [do_IRQ+48/90] do_IRQ+0x30/0x5a
 [common_interrupt+26/32] common_interrupt+0x1a/0x20
 [default_idle+0/85] default_idle+0x0/0x55
 [default_idle+44/85] default_idle+0x2c/0x55
 [cpu_idle+90/119] cpu_idle+0x5a/0x77
 [start_kernel+356/377] start_kernel+0x164/0x179
 [unknown_bootoption+0/438] unknown_bootoption+0x0/0x1b6
[ide_intr+0/353] (ide_intr+0x0/0x161)
[ide_intr+0/353] (ide_intr+0x0/0x161)
[pg0+944359708/1069540352] (usb_hcd_irq+0x0/0x52 [usbcore])
[pg0+945390008/1069540352] (e1000_intr+0x0/0x146 [e1000])
Disabling IRQ #169
hde: lost interrupt

and systems is blocked for some seconds during this error. "irqpool"
doesn't solve that problem (kernel hangs). Any suggestion (to solve
"nobody cared" problem or - maybe better - to use my controller in a
"standard fast mode" with CONFIG_SCSI_ATA_PIIX)?

Thank you, Leonardo Macchia.

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-univac
Locale: LANG=en_IE.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)

Versions of packages linux-source-2.6.15 depends on:
ii  binutils             2.16.1cvs20060117-1 The GNU assembler, linker and bina
ii  bzip2                1.0.3-2             high-quality block-sorting file co

Versions of packages linux-source-2.6.15 recommends:
ii  gcc                       4:4.0.2-2      The GNU C compiler
ii  libc6-dev [libc-dev]      2.3.5-12       GNU C Library: Development Librari
ii  make                      3.80+3.81.b4-1 The GNU version of the "make" util

-- no debconf information

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