Public bug reported:

24.04 LTS,
Linux 6.14.0-29-generic #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Aug 14 
16:52:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Problem Description:
crash utility is crashing (error code 1) when attempting to analyze kernel 
crash dumps.

Setup kdump & generated kernel panic using “echo 1 >
/proc/sys/kernel/sysrq” but, crash cannot access it:

# crash /usr/lib/debug/boot/vmlinux-6.14.0-29-generic
dump.202509161821

crash 8.0.4
Copyright (C) 2002-2022  Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
Copyright (C) 1999-2006  Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011, 2020-2022  NEC Corporation
Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
Copyright (C) 2015, 2021  VMware, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions.  Enter "help copying" to see the conditions.
This program has absolutely no warranty.  Enter "help warranty" for details.
 
GNU gdb (GDB) 10.2                             
Copyright (C) 2021 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-pc-linux-gnu".
Type "show configuration" for configuration details.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...

# echo $?
1

running as root user and file is readable fine:


$ :/var/crash/202509161821# ls -l
total 299144
-rw------- 1 root whoopsie    119627 Sep 16 18:21 dmesg.202509161821
-rw-r--r-- 1 root whoopsie 306200163 Sep 16 18:21 dump.202509161821


symbol file is there:

# ls -l /usr/lib/debug/boot/vmlinux-6.14.0-29-generic*
-rw-r--r-- 1 root root 450705920 Aug 14 18:02 
/usr/lib/debug/boot/vmlinux-6.14.0-29-generic

tail of strace:

14:06:20.661240 rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
14:06:20.661281 rt_sigaction(SIGINT, {sa_handler=0x5ec383cbceb0, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
14:06:20.661322 rt_sigaction(SIGSEGV, {sa_handler=SIG_DFL, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
14:06:20.661360 write(1, "\n", 1
)       = 1 <0.000119>
14:06:20.661579 lseek(3, 10312, SEEK_SET) = 10312 <0.000010>
14:06:20.661617 read(3, "OSRELEASE=6.14.0-29-generic\nBUIL"..., 3276) = 3276 
<0.000011>
14:06:20.661748 unlink("/var/tmp/ramdump_elf_XXXXXX") = -1 ENOENT (No such file 
or directory) <0.002921>
14:06:20.664817 exit_group(1)           = ?
14:06:20.690105 +++ exited with 1 +++


full crash strace https://filebin.net/custom-bin/crash.strace.1

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: crash 8.0.4-1ubuntu2
ProcVersionSignature: Ubuntu 6.14.0-29.29~24.04.1-generic 6.14.8
Uname: Linux 6.14.0-29-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
Date: Thu Sep 18 20:21:26 2025
InstallationDate: Installed on 2025-09-04 (14 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: crash
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: crash (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

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https://bugs.launchpad.net/bugs/2125145

Title:
  Crash utility exits with error code 1 when analyzing kernel crash

Status in crash package in Ubuntu:
  New

Bug description:
  24.04 LTS,
  Linux 6.14.0-29-generic #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Aug 14 
16:52:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

  Problem Description:
  crash utility is crashing (error code 1) when attempting to analyze kernel 
crash dumps.

  Setup kdump & generated kernel panic using “echo 1 >
  /proc/sys/kernel/sysrq” but, crash cannot access it:

  # crash /usr/lib/debug/boot/vmlinux-6.14.0-29-generic
  dump.202509161821

  crash 8.0.4
  Copyright (C) 2002-2022  Red Hat, Inc.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011, 2020-2022  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  Copyright (C) 2015, 2021  VMware, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
   
  GNU gdb (GDB) 10.2                             
  Copyright (C) 2021 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-pc-linux-gnu".
  Type "show configuration" for configuration details.
  Find the GDB manual and other documentation resources online at:
      <http://www.gnu.org/software/gdb/documentation/>.

  For help, type "help".
  Type "apropos word" to search for commands related to "word"...

  # echo $?
  1

  running as root user and file is readable fine:

  
  $ :/var/crash/202509161821# ls -l
  total 299144
  -rw------- 1 root whoopsie    119627 Sep 16 18:21 dmesg.202509161821
  -rw-r--r-- 1 root whoopsie 306200163 Sep 16 18:21 dump.202509161821

  
  symbol file is there:

  # ls -l /usr/lib/debug/boot/vmlinux-6.14.0-29-generic*
  -rw-r--r-- 1 root root 450705920 Aug 14 18:02 
/usr/lib/debug/boot/vmlinux-6.14.0-29-generic

  tail of strace:

  14:06:20.661240 rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
  14:06:20.661281 rt_sigaction(SIGINT, {sa_handler=0x5ec383cbceb0, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
  14:06:20.661322 rt_sigaction(SIGSEGV, {sa_handler=SIG_DFL, sa_mask=[], 
sa_flags=SA_RESTORER|SA_NODEFER, sa_restorer=0x7b0841845330}, NULL, 8) = 0 
<0.000008>
  14:06:20.661360 write(1, "\n", 1
  )       = 1 <0.000119>
  14:06:20.661579 lseek(3, 10312, SEEK_SET) = 10312 <0.000010>
  14:06:20.661617 read(3, "OSRELEASE=6.14.0-29-generic\nBUIL"..., 3276) = 3276 
<0.000011>
  14:06:20.661748 unlink("/var/tmp/ramdump_elf_XXXXXX") = -1 ENOENT (No such 
file or directory) <0.002921>
  14:06:20.664817 exit_group(1)           = ?
  14:06:20.690105 +++ exited with 1 +++

  
  full crash strace https://filebin.net/custom-bin/crash.strace.1

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: crash 8.0.4-1ubuntu2
  ProcVersionSignature: Ubuntu 6.14.0-29.29~24.04.1-generic 6.14.8
  Uname: Linux 6.14.0-29-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Thu Sep 18 20:21:26 2025
  InstallationDate: Installed on 2025-09-04 (14 days ago)
  InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 
(20250215)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  SourcePackage: crash
  UpgradeStatus: No upgrade log present (probably fresh install)

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