11:58 a.m.
I got it working with vmlinux.dbg rebuilt with SMP flag turned on.
I wonder what was going on with crash and the kerntypes file, which was
working with lcrash.
The updates in the first half of this year enabled crash to work with
the (non-standard) ELF format dump generated for RedHat guests. It would
be great when the gust is SLES 9, the same non-standard ELF format dump
generated could also work with crash, since the mechanism for generating
such dumps are already in place.
Later,
Daniel
10:19 a.m.
New subject: crash and sles 9 dumps
Hi,
* Daniel Li <dli(a)virtualiron.com> [2007-08-09 18:58]:
I got it working with vmlinux.dbg rebuilt with SMP flag turned on.
LKCD dumps should work with the SLES9 kernel. But not with Kerntypes
file, but with a kernel guilt with debug info (-g).
I wonder what was going on with crash and the kerntypes file, which
was
working with lcrash.
The latest crash works with Kerntypes file. However, I did not test
whether it works with LKCD dump files.
In general: For SLES/LKCD use always the (open)SUSE RPMs from the
distribution or the latest one from
http://download.opensuse.org/repositories/Kernel:/kdump/ as it
contains two patches in that area. I can add a SLE9 target if
that would make sense (but only for some specific packages, crash
should work, however).
For bugs about this, file a bug report in Novell bugzilla and assign
it to me (bwalle(a)novell.com). If it's a general bug in crash, then we
can re-discuss it here.
Thanks,
Bernhard (SUSE crash maintainer)
11:33 a.m.
New subject: crash and sles 9 dumps
On Fri, Aug 10, 2007 at 05:19:10PM +0200, Bernhard Walle wrote:
Hi,
* Daniel Li <dli(a)virtualiron.com> [2007-08-09 18:58]:
> I got it working with vmlinux.dbg rebuilt with SMP flag turned on.
LKCD dumps should work with the SLES9 kernel. But not with Kerntypes
file, but with a kernel guilt with debug info (-g).
> I wonder what was going on with crash and the kerntypes file, which was
> working with lcrash.
The latest crash works with Kerntypes file. However, I did not test
whether it works with LKCD dump files.
The typical LKCD kerntypes is built by compiling linux/init/kerntypes.c
with -g. That produces a very limited set of kernel types.
The kerntypes file that crash can use is built by the LKCD dwarfexract
command. Types are extracted from a -g kernel and modules. And dwarfextract
writes a magic ELF e_version that crash uses to distinguish a kerntypes from
a vmlinux. So only such a kerntypes file will work.
In general: For SLES/LKCD use always the (open)SUSE RPMs from the
distribution or the latest one from
http://download.opensuse.org/repositories/Kernel:/kdump/ as it
contains two patches in that area. I can add a SLE9 target if
that would make sense (but only for some specific packages, crash
should work, however).
For bugs about this, file a bug report in Novell bugzilla and assign
it to me (bwalle(a)novell.com). If it's a general bug in crash, then we
can re-discuss it here.
Thanks,
Bernhard (SUSE crash maintainer)
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Cliff Wickman
Silicon Graphics, Inc.
cpw(a)sgi.com
(651) 683-3824
4:34 a.m.
New subject: crash and sles 9 dumps
Hi Cliff
On Mon, 2007-08-13 at 11:33 -0500, Cliff Wickman wrote:
On Fri, Aug 10, 2007 at 05:19:10PM +0200, Bernhard Walle wrote:
The kerntypes file that crash can use is built by the LKCD
dwarfexract
command. Types are extracted from a -g kernel and modules. And dwarfextract
writes a magic ELF e_version that crash uses to distinguish a kerntypes from
a vmlinux. So only such a kerntypes file will work.
Also the standard -g compiled lkcd Kerntypes file seems to work, if you
set the KERNTYPES flag. This can be useful, if you don't want to build a
full -g compiled vmlinux.
I used the following simple patch which adds the "-k" option to force
crash using the kerntypes code path.
diff -Naurp crash-4.0-4.5/main.c crash-4.0-4.5-kerntypes/main.c
--- crash-4.0-4.5/main.c 2007-08-13 15:07:20.000000000 +0200
+++ crash-4.0-4.5-kerntypes/main.c 2007-08-13 15:06:51.000000000 +0200
@@ -70,7 +70,7 @@ main(int argc, char **argv)
*/
opterr = 0;
optind = 0;
- while((c = getopt_long(argc, argv, "Lgh::e:i:sSvc:d:tfp:m:",
+ while((c = getopt_long(argc, argv, "Lkgh::e:i:sSvc:d:tfp:m:",
long_options, &option_index)) != -1) {
switch (c)
{
@@ -222,6 +222,9 @@ main(int argc, char **argv)
else
program_usage(LONG_FORM);
clean_exit(0);
+ case 'k':
+ pc->flags |= KERNTYPES;
+ break;
case 'e':
if (STREQ(optarg, "vi"))
I attached the kerntypes file, which works for s390:
2:49 p.m.
New subject: crash and sles 9 dumps
Michael Holzheu wrote:
Hi Cliff
On Mon, 2007-08-13 at 11:33 -0500, Cliff Wickman wrote:
>On Fri, Aug 10, 2007 at 05:19:10PM +0200, Bernhard Walle wrote:
>The kerntypes file that crash can use is built by the LKCD dwarfexract
>command. Types are extracted from a -g kernel and modules. And dwarfextract
>writes a magic ELF e_version that crash uses to distinguish a kerntypes from
>a vmlinux. So only such a kerntypes file will work.
Also the standard -g compiled lkcd Kerntypes file seems to work, if you
set the KERNTYPES flag. This can be useful, if you don't want to build a
full -g compiled vmlinux.
I used the following simple patch which adds the "-k" option to force
crash using the kerntypes code path.
diff -Naurp crash-4.0-4.5/main.c crash-4.0-4.5-kerntypes/main.c
--- crash-4.0-4.5/main.c 2007-08-13 15:07:20.000000000 +0200
+++ crash-4.0-4.5-kerntypes/main.c 2007-08-13 15:06:51.000000000 +0200
@@ -70,7 +70,7 @@ main(int argc, char **argv)
*/
opterr = 0;
optind = 0;
- while((c = getopt_long(argc, argv, "Lgh::e:i:sSvc:d:tfp:m:",
+ while((c = getopt_long(argc, argv, "Lkgh::e:i:sSvc:d:tfp:m:",
long_options, &option_index)) != -1) {
switch (c)
{
@@ -222,6 +222,9 @@ main(int argc, char **argv)
else
program_usage(LONG_FORM);
clean_exit(0);
+ case 'k':
+ pc->flags |= KERNTYPES;
+ break;
case 'e':
if (STREQ(optarg, "vi"))
This simple "-k" fix looks fine to me, presuming that there's
nothing else obvious in the lkcd kerntypes file that distinguishes
it -- i.e., like the unique ELF e_version that dwarfextract uses.
(EV_DWARFEXTRACT 101010101)
So unless anybody objects, or has a better idea, I'll put this -k
option in the next release.
Thanks,
Dave
I attached the kerntypes file, which works for s390:
------------------------------------------------------------------------
/*
* kerntypes.c
*
* Dummy module that includes headers for all kernel types of interest.
* The kernel type information is used by the lcrash utility when
* analyzing system crash dumps or the live system. Using the type
* information for the running system, rather than kernel header files,
* makes for a more flexible and robust analysis tool.
*
* This source code is released under the GNU GPL.
*/
/* generate version for this file */
typedef char *COMPILE_VERSION;
/* General linux types */
#include <linux/autoconf.h>
#include <linux/compile.h>
#include <linux/utsname.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/slab_def.h>
#include <linux/slab.h>
#include <linux/bio.h>
#include <linux/bitmap.h>
#include <linux/bitops.h>
#include <linux/bitrev.h>
#include <linux/blkdev.h>
#include <linux/blkpg.h>
#include <linux/bootmem.h>
#include <linux/buffer_head.h>
#include <linux/cache.h>
#include <linux/cdev.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/cpuset.h>
#include <linux/dcache.h>
#include <linux/debugfs.h>
#include <linux/elevator.h>
#include <linux/fd.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/futex.h>
#include <linux/genhd.h>
#include <linux/highmem.h>
#include <linux/if.h>
#include <linux/if_addr.h>
#include <linux/if_arp.h>
#include <linux/if_bonding.h>
#include <linux/if_ether.h>
#include <linux/if_tr.h>
#include <linux/if_tun.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/in_route.h>
#include <linux/inet.h>
#include <linux/inet_diag.h>
#include <linux/inetdevice.h>
#include <linux/init.h>
#include <linux/initrd.h>
#include <linux/inotify.h>
#include <linux/interrupt.h>
#include <linux/ioctl.h>
#include <linux/ip.h>
#include <linux/ipsec.h>
#include <linux/ipv6.h>
#include <linux/ipv6_route.h>
#include <linux/irq.h>
#include <linux/irqflags.h>
#include <linux/irqreturn.h>
#include <linux/jbd.h>
#include <linux/jbd2.h>
#include <linux/jffs2.h>
#include <linux/jhash.h>
#include <linux/jiffies.h>
#include <linux/kallsyms.h>
#include <linux/kernel.h>
#include <linux/kernel_stat.h>
#include <linux/kexec.h>
#include <linux/kobject.h>
#include <linux/kthread.h>
#include <linux/ktime.h>
#include <linux/list.h>
#include <linux/memory.h>
#include <linux/miscdevice.h>
#include <linux/mm.h>
#include <linux/mm_inline.h>
#include <linux/mm_types.h>
#include <linux/mman.h>
#include <linux/mmtimer.h>
#include <linux/mmzone.h>
#include <linux/mnt_namespace.h>
#include <linux/module.h>
#include <linux/moduleloader.h>
#include <linux/moduleparam.h>
#include <linux/mount.h>
#include <linux/mpage.h>
#include <linux/mqueue.h>
#include <linux/mtio.h>
#include <linux/mutex.h>
#include <linux/namei.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/netfilter.h>
#include <linux/netfilter_arp.h>
#include <linux/netfilter_bridge.h>
#include <linux/netfilter_decnet.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netlink.h>
#include <linux/netpoll.h>
#include <linux/pagemap.h>
#include <linux/param.h>
#include <linux/percpu.h>
#include <linux/percpu_counter.h>
#include <linux/pfn.h>
#include <linux/pid.h>
#include <linux/pid_namespace.h>
#include <linux/poll.h>
#include <linux/posix-timers.h>
#include <linux/posix_acl.h>
#include <linux/posix_acl_xattr.h>
#include <linux/posix_types.h>
#include <linux/preempt.h>
#include <linux/prio_tree.h>
#include <linux/proc_fs.h>
#include <linux/profile.h>
#include <linux/ptrace.h>
#include <linux/radix-tree.h>
#include <linux/ramfs.h>
#include <linux/raw.h>
#include <linux/rbtree.h>
#include <linux/rcupdate.h>
#include <linux/reboot.h>
#include <linux/relay.h>
#include <linux/resource.h>
#include <linux/romfs_fs.h>
#include <linux/root_dev.h>
#include <linux/route.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/sem.h>
#include <linux/seq_file.h>
#include <linux/seqlock.h>
#include <linux/shm.h>
#include <linux/shmem_fs.h>
#include <linux/signal.h>
#include <linux/signalfd.h>
#include <linux/skbuff.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/spinlock.h>
#include <linux/stat.h>
#include <linux/statfs.h>
#include <linux/stddef.h>
#include <linux/swap.h>
#include <linux/swapops.h>
#include <linux/sys.h>
#include <linux/syscalls.h>
#include <linux/sysctl.h>
#include <linux/sysdev.h>
#include <linux/sysfs.h>
#include <linux/sysrq.h>
#include <linux/tc.h>
#include <linux/tcp.h>
#include <linux/thread_info.h>
#include <linux/threads.h>
#include <linux/tick.h>
#include <linux/time.h>
#include <linux/timer.h>
#include <linux/timerfd.h>
#include <linux/times.h>
#include <linux/timex.h>
#include <linux/topology.h>
#include <linux/transport_class.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/tty_ldisc.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <linux/utime.h>
#include <linux/uts.h>
#include <linux/utsname.h>
#include <linux/utsrelease.h>
#include <linux/version.h>
#include <linux/vfs.h>
#include <linux/vmalloc.h>
#include <linux/vmstat.h>
#include <linux/wait.h>
#include <linux/watchdog.h>
#include <linux/workqueue.h>
#include <linux/zconf.h>
#include <linux/zlib.h>
/*
* s390 specific includes
*/
#include <asm/lowcore.h>
#include <asm/debug.h>
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include <asm/qdio.h>
#include <asm/zcrypt.h>
#include <asm/etr.h>
#include <asm/ipl.h>
#include <asm/setup.h>
/* channel subsystem driver */
#include "drivers/s390/cio/cio.h"
#include "drivers/s390/cio/chsc.h"
#include "drivers/s390/cio/css.h"
#include "drivers/s390/cio/device.h"
#include "drivers/s390/cio/qdio.h"
/* dasd device driver */
#include "drivers/s390/block/dasd_int.h"
#include "drivers/s390/block/dasd_diag.h"
#include "drivers/s390/block/dasd_eckd.h"
#include "drivers/s390/block/dasd_fba.h"
/* networking drivers */
#include "drivers/s390/net/fsm.h"
#include "include/net/iucv/iucv.h"
#include "drivers/s390/net/lcs.h"
#include "drivers/s390/net/qeth.h"
/* zfcp device driver */
#include "drivers/s390/scsi/zfcp_def.h"
#include "drivers/s390/scsi/zfcp_fsf.h"
/* crypto device driver */
#include "drivers/s390/crypto/ap_bus.h"
#include "drivers/s390/crypto/zcrypt_api.h"
#include "drivers/s390/crypto/zcrypt_cca_key.h"
#include "drivers/s390/crypto/zcrypt_pcica.h"
#include "drivers/s390/crypto/zcrypt_pcicc.h"
#include "drivers/s390/crypto/zcrypt_pcixcc.h"
#include "drivers/s390/crypto/zcrypt_cex2a.h"
/* sclp device driver */
#include "drivers/s390/char/sclp.h"
#include "drivers/s390/char/sclp_rw.h"
#include "drivers/s390/char/sclp_tty.h"
/* vmur device driver */
#include "drivers/s390/char/vmur.h"
/*
* include sched.c for types:
* - struct prio_array
* - struct runqueue
*/
#include "kernel/sched.c"
/*
* include slab.c for struct kmem_cache
*/
#include "mm/slab.c"
------------------------------------------------------------------------
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4 comments
5 participants
participants (5)
-
Bernhard Walle -
Cliff Wickman -
Daniel Li -
Dave Anderson -
Michael Holzheu