[Crash-utility] Does Crash support kernel 3.4.20 on PPC64?
Dave Anderson
anderson at redhat.com
Tue Jan 29 14:05:58 UTC 2013
----- Original Message -----
>
> I does not receive your reply, probably because of firewall, or because I am
> not the subscribe of crash-utility at redhat.com.
>
> Thanks for your reply.
>
> Could you show me a result of "./crash -d 5" and Fedora kernel .config?
> Thanks very much.
I've copied the config file and the crash -d5 output here:
http://people.redhat.com/anderson/ppc64
Your kernel is failing when accessing the first vmalloc kernel virtual
address, which requires walking the kernel's page tables. Perhaps
there are issues with either the configured page size or the number
of page-table levels?
FYI, you may be able to get a limited crash session up by adding "--no_modules"
to the crash command line. All attempts to access module vmalloc memory will
fail, but it may help in the debugging effort.
Dave
>
> My result is:
> crash: get_cpus_online: online: 2
> GNU_GET_DATATYPE[irq_desc_t]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_GET_DATATYPE[hw_interrupt_type]: returned via gdb_error_hook (1
> buffer in use)
> GNU_GET_DATATYPE[timer_vec_root]: returned via gdb_error_hook (1
> buffer in use)
> GNU_GET_DATATYPE[timer_vec]: returned via gdb_error_hook (1 buffer in
> use)
> GNU_GET_DATATYPE[tvec_root_s]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_GET_DATATYPE[softirq_state]: returned via gdb_error_hook (1
> buffer in use)
> GNU_GET_DATATYPE[desc_struct]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_GET_DATATYPE[kallsyms_header]: returned via gdb_error_hook (1
> buffer in use)
> GNU_GET_DATATYPE[mem_section]: returned via gdb_error_hook (1 buffer
> in use)
> <readmem: c000000000922930, KVADDR, "cpu_possible_mask", 8, (FOE),
> fc5b5934d10>
> <read_dev_mem: addr: c000000000922930 paddr: 922930 cnt: 8>
> <readmem: c000000000922930, KVADDR, "cpu_possible_mask", 8, (FOE),
> fc5b5934c90>
> <read_dev_mem: addr: c000000000922930 paddr: 922930 cnt: 8>
> <readmem: c000000000922930, KVADDR, "cpu_possible_mask", 8, (FOE),
> fc5b5934c90>
> <read_dev_mem: addr: c000000000922930 paddr: 922930 cnt: 8>
> <readmem: c000000000922930, KVADDR, "cpu_possible_mask", 8, (FOE),
> fc5b5934c90>
> <read_dev_mem: addr: c000000000922930 paddr: 922930 cnt: 8>
> <readmem: c000000000922930, KVADDR, "cpu_possible_mask", 8, (FOE),
> fc5b5934c90>
> <read_dev_mem: addr: c000000000922930 paddr: 922930 cnt: 8>
> GNU_GET_DATATYPE[irqdesc]: returned via gdb_error_hook (1 buffer in
> use)
> GNU_GET_DATATYPE[irq_desc_t]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_GET_DATATYPE[RESIDUAL]: returned via gdb_error_hook (1 buffer in
> use)
> GNU_GET_DATATYPE[VPD]: returned via gdb_error_hook (1 buffer in use)
> GNU_GET_DATATYPE[bd_info]: returned via gdb_error_hook (1 buffer in
> use)
> <readmem: c000000001019ab8, KVADDR, "nr_irqs", 4, (FOE), 108bf934>
> <read_dev_mem: addr: c000000001019ab8 paddr: 1019ab8 cnt: 4>
> GNU_GET_DATATYPE[kmem_slab_s]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_GET_DATATYPE[slab_s]: returned via gdb_error_hook (1 buffer in
> use)
> GNU_GET_DATATYPE[slab]: returned via gdb_error_hook (1 buffer in use)
> GNU_GET_DATATYPE[kmem_cache_s]: returned via gdb_error_hook (1 buffer
> in use)
> GNU_PASS_THROUGH: returned via gdb_error_hook (1 buffer in use)
> GNU_PASS_THROUGH: returned via gdb_error_hook (1 buffer in use)
> <readmem: c0000000012430d8, KVADDR, "high_memory", 8, (FOE),
> 108c4be8>
> <read_dev_mem: addr: c0000000012430d8 paddr: 12430d8 cnt: 8>
> <readmem: c0000000012430b0, KVADDR, "mem_map", 8, (FOE), 108c4bf8>
> <read_dev_mem: addr: c0000000012430b0 paddr: 12430b0 cnt: 8>
> <readmem: c000000001243140, KVADDR, "vmlist", 8, (FOE), fc5b59340e8>
> <read_dev_mem: addr: c000000001243140 paddr: 1243140 cnt: 8>
> <readmem: c0000000fb198008, KVADDR, "first vmlist addr", 8, (ROE),
> fc5b59340e0>
> <read_dev_mem: addr: c0000000fb198008 paddr: fb198008 cnt: 8>
> <readmem: c000000001197518, KVADDR, "totalram_pages", 8, (FOE),
> 108c4c08>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> <readmem: c00000000119d000, KVADDR, "level4 page", 4096, (FOE),
> 118c99b0>
> ....
>
> -Roy
> Fedora
>
>
>
>
> At 2013-01-24 19:42:01,"李佳豪" <lrq2001 at 163.com> wrote:
>
>
>
> crash can not exit from readmem() recursive until it is killed
> because of
> OOM or Segmentation fault on PPC64 cpu.
>
> readmem-->kvtop-->ppc64_vtop_level4-->readme-->kvtop....
>
>
> root at localhost:~# uname -a
> Linux localhost 3.4.20 #2 SMP PREEMPT Thu Jan 24 14:43:59 CST 2013
> ppc64 GNU/Linux
> root at localhost:~#
>
> root at localhost:~# crash
>
> crash 6.1.0
> Copyright (C) 2002-2012 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 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) 7.3.1
> Copyright (C) 2011 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 "powerpc64-wrs-linux"...
>
> Segmentation fault (core dumped)
> root at localhost:~# gdb /usr/bin/crash core
> GNU gdb (Linux Sourcery CodeBench 4.6a-98) 7.4.50.20120716-cvs
> Copyright (C) 2012 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 "powerpc64-wrs-linux-gnu".
> For bug reporting instructions, please see:
> < support at codesource.com >...
> Reading symbols from /usr/bin/crash...Reading symbols from
> /usr/bin/.debug/crash...done.
> done.
> [New LWP 1166]
>
> warning: Could not load shared library symbols for linux-vdso64.so.1.
> Do you need "set solib-search-path" or "set sysroot"?
> Core was generated by `crash '.
> Program terminated with signal 11, Segmentation fault.
> #0 readmem (addr=13835058055299842048, memtype=1, buffer=0x10cbc460,
> size=4096, type=0x106eafe8 "level4 page", error_handle=1) at
> memory.c:1959
> 1959 {
> (gdb) bt
> #0 readmem (addr=13835058055299842048, memtype=1, buffer=0x10cbc460,
> size=4096, type=0x106eafe8 "level4 page", error_handle=1) at
> memory.c:1959
> #1 0x000000001011a2e4 in ppc64_vtop_level4
> (vaddr=13835058055299842048,
> level4=0xc0000000010dc000, paddr=0xfffe73ed1d8, verbose=<optimized
> out>)
> at ppc64.c:561
> #2 0x0000000010097264 in kvtop (tc=<optimized out>,
> kvaddr=<error reading variable: value has been optimized out>,
> paddr=<optimized out>,
> verbose=<error reading variable: value has been optimized out>)
> at memory.c:2765
> #3 0x000000001009895c in readmem (addr=13835058055299842048,
> memtype=<optimized out>, buffer=<optimized out>, size=<optimized
> out>,
> type=0x106eafe8 "level4 page", error_handle=1) at memory.c:2032
> #4 0x000000001011a2e4 in ppc64_vtop_level4
> (vaddr=13835058055299842048,
> level4=0xc0000000010dc000, paddr=0xfffe73ed418, verbose=<optimized
> out>)
> at ppc64.c:561
> #5 0x0000000010097264 in kvtop (tc=<optimized out>,
> kvaddr=<error reading variable: value has been optimized out>,
> paddr=<optimized out>,
> verbose=<error reading variable: value has been optimized out>)
> at memory.c:2765
> #6 0x000000001009895c in readmem (addr=13835058055299842048,
> memtype=<optimized out>, buffer=<optimized out>, size=<optimized
> out>,
> ---Type <return> to continue, or q <return> to quit---quit
> type=Quit
> (gdb) quit
>
>
>
>
>
>
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