Bug 592294

Summary: grubby segfaults when default kernel is Fedora
Product: Red Hat Enterprise Linux 6 Reporter: Ian Pilcher <ipilcher>
Component: grubbyAssignee: Brian Lane <bcl>
Status: CLOSED CURRENTRELEASE QA Contact: Release Test Team <release-test-team-automation>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: atodorov, mmatsuya, ndbecker2, notting, pjones, rwilliam, tao
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: grubby-7.0.15-2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-11-10 20:36:26 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
grub.conf none

Description Ian Pilcher 2010-05-14 13:41:22 UTC 
Description of problem:
I have RHEL 6 beta installed alongside Fedora 12.  The default stanza in
grub.conf is the latest Fedora 12 kernel (see attached grub.conf).  This
is causing grubby to segfault:

[root@localhost ~]# grubby --default-kernel
grubby recieved SIGSEGV!  Backtrace (7):
grubby[0x40800f]
/lib64/libc.so.6[0x3ef0c32a40]
/lib64/libc.so.6[0x3ef0d2799a]
grubby[0x40695e]
grubby[0x407b56]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x3ef0c1ec5d]
grubby[0x401709]

I tried installing the relevant debuginfo packages and getting a back-
trace, but I didn't get anything useful:

[root@localhost ~]# gdb /sbin/grubby
GNU gdb (GDB) Red Hat Enterprise Linux (7.1-18.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /sbin/grubby...Reading symbols from /usr/lib/debug/sbin/grubby.debug...done.
done.
(gdb) set args --default-kernel
(gdb) run
Starting program: /sbin/grubby --default-kernel

Program received signal SIGSEGV, Segmentation fault.
__strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:107
107		movlpd	(%rsi), %xmm2
(gdb) bt
#0  __strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:107
#1  0x000000000040695e in suitableImage (entry=<value optimized out>, bootPrefix=<value optimized out>, 
    skipRemoved=<value optimized out>, flags=<value optimized out>) at grubby.c:1297
#2  0x0000000000407b56 in main (argc=<value optimized out>, argv=<value optimized out>) at grubby.c:3168

If I edit grub.conf and set the default to the RHEL 6 stanza, grubby
works:

[root@localhost ~]# grubby --default-kernel
/boot/vmlinuz-2.6.32-19.el6.x86_64

Version-Release number of selected component (if applicable):
grubby-7.0.15-1.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1.  Install attached grub.conf
2.  Run "grubby --default-kernel"
  
Actual results:
segfault

Expected results:
Should return /boot/vmlinuz-2.6.32.11-99.fc12.x86_64

Additional info:
Comment 1 Ian Pilcher 2010-05-14 13:42:46 UTC 
Created attachment 414051 [details]
grub.conf
Comment 3 RHEL Program Management 2010-05-14 15:55:04 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 4 Brian Lane 2010-06-07 22:59:37 UTC 
*** Bug 599962 has been marked as a duplicate of this bug. ***
Comment 6 Alexander Todorov 2010-07-20 15:03:42 UTC 
Tested with snap #8 (0715.0) - a system where both Fedora and RHEL6 are installed .I can boot into both OSes without traceback. When making Fedora the default boot is happy. Moving to VERIFIED.
Comment 7 Brian Lane 2010-08-19 19:12:25 UTC 
*** Bug 625306 has been marked as a duplicate of this bug. ***
Comment 10 releng-rhel@redhat.com 2010-11-10 20:36:26 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.