Bug 253782 - Boot fails with a kernel panic on my laptop
Boot fails with a kernel panic on my laptop
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i686 Linux
urgent Severity urgent
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-08-21 17:14 EDT by D. Angelis
Modified: 2007-11-30 17:12 EST (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-08-22 13:26:48 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
lspci -nnvvvxxx (35.94 KB, text/plain)
2007-08-21 17:14 EDT, D. Angelis
no flags Details

  None (edit)
Description D. Angelis 2007-08-21 17:14:51 EDT
Description of problem:
New kernel fails on boot with a kernel panic.
This is the end result of the failure to detect the hard disk so kernel does not
have where to switchroot.
The boot device is a SATA HD on an Intel ICH7m controller in combined mode
(ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ]) which normally gets handled by
libata(ata_piix) driver.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.just boot
Actual results:
kernel panic

Expected results:

Additional info:
Used to work fine with all previous FC6 kernels (including
The only way to get the latest kernel to boot is to not use libata at all
by appending the kernel boot option "combined_mode=ide" which is not acceptable
since no DMA is used for my hard disk and therefore is very slow.
I can not provide a dmesg log since the panic happens too early.
Comment 1 D. Angelis 2007-08-21 17:14:51 EDT
Created attachment 162014 [details]
lspci -nnvvvxxx
Comment 2 D. Angelis 2007-08-22 13:26:48 EDT
Adding the next line in /etc/modprobe.conf and reinstalling the
kernel did the trick.
   options libata ignore_hpa=1

I guess some changes regarding HPA treatment originating from FC7 kernels lurked
in libata module.
I think a warning message in package-announce-list is in order here.

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