Bug 202715 - Loop in __find_get_block_slow after building a Kadischi FC6T2 LiveCD
Summary: Loop in __find_get_block_slow after building a Kadischi FC6T2 LiveCD
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 6
Hardware: i386
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Dave Jones
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2006-08-15 22:30 UTC by Jasper O. Hartline
Modified: 2018-10-09 13:26 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-08-16 18:19:39 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jasper O. Hartline 2006-08-15 22:30:53 UTC
Description of problem:
After building a LiveCD using Kadischi using a FC6T2 stock disc as a repository,
I boot the CD image in Qemu and/or on normal hardware and get an endless loop in
__find_get_block_slow

The loop looks like so:
------------------------

__find_get_block_slow() failed. block=18446744071562067968, b_blocknr=2147483648
b_state=0x00000020, b_size=4096
device blocksize: 4096

------------------------
Version-Release number of selected component (if applicable):
kernel-2.6.17-1.2517.fc6

How reproducible:
Build LiveCD with Kadischi, boot teh CD under Qemu or normal hardware.

Steps to Reproduce:
1. kadischi --text /path/to/FC6T2/repository -f /tmp/fc6t2live.iso
2.
3.
  
Actual results:
Loop in __find_getblock_slow() kernel problem.

Expected results:
Should boot into a Live system.

Additional info:
Relevant information includes:
We already load cdrom.ko and ide-cd.ko which is used to allow find_live_cd.c in
Kadischi find and mount the CD in question after finding a /.livecd file on the
CD. This may or may not be a problem in find_live_cd.c or the kernel it's self
but I want to get more info before making an assumption.

cdrom.ko and ide-cd.ko were a part of the kernel before, and this didn't happen.
This could be a cause?
Also: Kadischi uses an Ext2 gzipped image as initrd, is this a problem either?
As The loop ends up happenning right after finding a compressed RAMDISK image at
block 0 during kernel bootstrap.

Thanks.

Comment 1 Jasper O. Hartline 2006-08-15 22:45:22 UTC
Additional information:
I happenned to be able to just get a peek at what it says before the loop and
after finding a compressed RAMDISK at block 0, and it does say:

Block size too small for device

I will try with a larger block size to Kadischi during making the initrd, and
report back results before pursuing this incedent as a bug. Thanks.


Comment 2 Jasper O. Hartline 2006-08-15 23:11:49 UTC
Additional information:
Adding mke2fs -b 4096 _does_ rectify the situation in Kadischi LiveCDs when
making the initrd..
This is using a initrd at size 10MB. 

If this is right, please close this bug. If not I can provide any additional
information needed to rectify this issue.

Comment 3 Dave Jones 2006-08-16 18:19:39 UTC
the initrd has to be 4kb blocksize.


Comment 4 Jasper O'neal Hartline 2018-10-03 19:01:32 UTC
We have initramfs now so no worries there. We also have a great LiveDVD Workstation Edition for Fedora 28 now so that is good.


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