[Crash-utility] Fwd: Redhat 5.11 dump

[Dave Anderson]

> Update, If I try to open with command: "crash -d1 ..."  I get:
> [root at centos511test kernel]# crash -d1 vmcore
> /usr/lib/debug/lib/modules/`uname -r`/vmlinux
>
> crash 5.1.8-3.el5.centos
> Copyright (C) 2002-2011  Red Hat, Inc.
> Copyright (C) 2004, 2005, 2006  IBM Corporation
> Copyright (C) 1999-2006  Hewlett-Packard Co
> Copyright (C) 2005, 2006  Fujitsu Limited
> Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
> Copyright (C) 2005  NEC Corporation
> Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
> Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, 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.
>
> compressed kdump: header->utsname.machine: x86_64
> diskdump_data:
>           filename: vmcore
>              flags: 6 (KDUMP_CMPRS_LOCAL|ERROR_EXCLUDED)
>                dfd: 3
>                ofp: 0
>       machine_type: 62 (EM_X86_64)
>
>             header: 11820fe0
>            signature: "KDUMP   "
>       header_version: 6
>              utsname:
>                sysname: Linux
>               nodename: lnbrsasp41
>                release: 3.10.0-693.17.1.el7.x86_64
>                version: #1 SMP Sun Jan 14 10:36:03 EST 2018
>                machine: x86_64
>             domainname: (none)
>            timestamp:
>                 tv_sec: 5b25ead0
>                tv_usec: 0
>               status: 1 (DUMP_HEADER_INCOMPLETED)
>           block_size: 4096
>         sub_hdr_size: 1
>        bitmap_blocks: 1040
>            max_mapnr: 17039360
>     total_ram_blocks: 0
>        device_blocks: 0
>       written_blocks: 0
>          current_cpu: 0
>              nr_cpus: 4
>       tasks[nr_cpus]: 0
>                       0
>                       0
>                       0
>
>         sub_header: 0 (n/a)
>
>
> Does it mean they gave me bad vmcore ? Why the version in "release" is
>                release: 3.10.0-693.17.1.el7.x86_64 ?
>

Looks like it.  Not only was the vmcore created from the crash of
a rhel7-vintage kernel (3.10.0-693.17.1.el7), the dumpfile also
shows that kdump operation failed to complete correctly, as
indicated by the DUMP_HEADER_INCOMPLETED flag.  That flag would
have been removed if the dumpfile creation completed normally.

Dave


>
>
>
>
>
>
>
>
>
>
> ---------- Forwarded message ---------
> From: Ilan Schwarts <ilan84 at gmail.com>
> Date: Sun, Jun 24, 2018 at 4:00 PM
> Subject: Redhat 5.11 dump
> To: <crash-utility at redhat.com>
>
>
> Hi,
> A production machine with Red Hat Enterprise Linux Server release 5.11
> (Tikanga) kernel 2.6.18-431.el5 crashed.
> I received vmcore, Since I dont have access to machine, and I need to
> open the vmcore to analyze the dump, I have downloaded CentOS 5.11,
> since centos 5.11 is EOL, I downloaded the 2.6.18-431.el5 kernel
> manually, with debuginfo and debuginfo-common and installed them, so
> far - seems ok.
>
> I am trying to get call stack of the dump time, i get error:
> [root at centos511test kernel]# crash vmcore
> /usr/lib/debug/lib/modules/`uname -r`/vmlinux
>
> crash 5.1.8-3.el5.centos
> Copyright (C) 2002-2011  Red Hat, Inc.
> Copyright (C) 2004, 2005, 2006  IBM Corporation
> Copyright (C) 1999-2006  Hewlett-Packard Co
> Copyright (C) 2005, 2006  Fujitsu Limited
> Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
> Copyright (C) 2005  NEC Corporation
> Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
> Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, 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) 7.0
> Copyright (C) 2009 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-unknown-linux-gnu"...
>
> crash: page excluded: kernel virtual address: ffffffff804d3ae0  type:
> "possible"
> WARNING: cannot read cpu_possible_map
> crash: page excluded: kernel virtual address: ffffffff804735e0  type:
> "present"
> WARNING: cannot read cpu_present_map
> crash: page excluded: kernel virtual address: ffffffff8046e260  type:
> "online"
> WARNING: cannot read cpu_online_map
> crash: page excluded: kernel virtual address: ffffffff80475210  type:
> "xtime"
> [root at centos511test kernel]#
>
> Any thoughts ? how can I continue ?
>
> Thanks alot
>
>
> --
>
>
> -
> Ilan Schwarts
>
> --
> Crash-utility mailing list
> Crash-utility at redhat.com
> https://www.redhat.com/mailman/listinfo/crash-utility
>
>