[Crash-utility] [ANNOUNCE] crash-6.1.5 is available

[Dave Anderson]

Download from: http://people.redhat.com/anderson

Changelog:
  
 - Fix for the ARM "irq" command.  Without the patch, on 2.6.34 and 
   later kernels configured with CONFIG_SPARSE_IRQ, the command fails 
   with the error message "irq: cannot determine number of IRQs".
   (Jan.Karlsson at sonymobile.com)
 
 - Fix for a segmentation violation generated during invocation while 
   parsing a makedumpfile-created "flat-format" vmcore-incomplete file.
   Without the patch, the crash session would display the error message 
   "crash: unable to seek dump file vmcore-incomplete", followed by a 
   segmentation violation.
   (anderson at redhat.com)
 
 - Fix for a segmentation violation generated by the "kmem -s" option
   when encountering a corrupted array_cache structure that contains
   a bogus "avail" count that is greater than the maximum legitimate
   limit value.  Without the patch, the "kmem -s" command would print
   a warning message regarding the invalid array_cache, complete the 
   command normally, and then generate a segmentation violation when 
   freeing buffers used by the command.
   (anderson at redhat.com)
 
 - Update to the "kmem -s" function to include the errors found in slab
   structures to the display of total errors found when the command
   completes.  Without the patch, invalid list_head pointers, bad 
   inuse counters, and bad s_mem pointers were not added to the total
   number of errors found.
   (anderson at redhat.com)
 
 - Fix for "crash --osrelease <dumpfile>" and "crash --log <dumpfile>"
   when run on an ARM compressed kdump with a crash binary that was built
   with "make target=ARM" on an x86 or x86_64 host.  Without the patch, 
   if the compressed kdump header version is 4 or 5, "crash --osrelease"
   fails with the error message "crash: compressed kdump: cannot lseek 
   dump vmcoreinfo" followed by "unknown", and "crash --log" fails with 
   the error message "crash: <dumpfile>: no VMCOREINFO section".
   (anderson at redhat.com)
 
 - Enhancement to the "swap" command to display the swap_info_struct
   address of each configured swap device.  The output has been changed
   to display the address in the first column, and the variable-length
   device name has been moved to the last column.
   (anderson at redhat.com)
 
 - Fix for the "kmem -[sS]" options on kernels that configured with both
   CONFIG_SLUB and CONFIG_NODES_SHIFT, and that are running on hardware
   that generates NUMA nodes that contain no memory.  Without the patch,
   both command options fail immediately with the message "kmem: invalid
   kernel virtual address: 8  type: kmem_cache_node nr_partial".
   (anderson at redhat.com)
 
 - Increment the PPC64 NR_CPUS maximum value from 1024 to 2048.
   (anderson at redhat.com)
 
 - Strip the ".isra." and ".part." appendages to cloned text symbol 
   names, which seem to have been introduced by gcc-4.6.0.  To keep 
   them intact, a "--no_strip" command line option has been added.
   (anderson at redhat.com)
 
 - Patch to the internal gdb_get_datatype() function to return the 
   typecode and length of integer variables.
   (adrian.wenl at gmail.com, anderson at redhat.com)
     
 - Fix for the "dev -d" option on Linux 3.6 and later kernels.  Without
   the patch the option fails with the message "dev: invalid structure 
   member offset: request_queue_rq".
   (holzheu at linux.vnet.ibm.com)
 
 - Export the red/black tree utility functions rb_first(), rb_parent(), 
   rb_right(), rb_left(), rp_next() and rb_last().  Without the patch,
   they are statically declared and only used by the "runq" command.
   (qiaonuohan at cn.fujitsu.com)
 
 - Implemented a new "timer -r" option that displays the hrtimer queues,
   supporting all versions from Linux 2.6.16 to the present.
   (qiaonuohan at cn.fujitsu.com, anderson at redhat.com)
 
 - Fix for "kmem -s" on Linux 3.8 and later kernels that are configured
   with CONFIG_SLAB.  The kmem_cache.array[] length has been extended to
   store the nodelist pointers, so the original method to determine the
   per-cpu array limit can go out-of-range.  Without the patch, during
   session initialization there may be a message that indicates "crash:
   invalid kernel virtual address: <address> type: array cache limit",
   followed by "crash: unable to initialize kmem slab cache subsystem"; 
   if those messages do get shown, then "kmem -s" will subsequently fail
   during runtime with the message "kmem: kmem cache slab subsystem not 
   available".
   (qiaonuohan at cn.fujitsu.com)
 
 - Two Xen hypervisor fixes:
    (1) Fix console buffer content length calculation:
          Xen changeset 26447 (x86: re-introduce map_domain_page() et 
          al) once again altered virtual address space.  The current 
          algorithm calculating its start could not cope with that 
          change.  New version establishes this value on the base of 
          image start address and is more generic.
    (2) Improve calculation of beginning of virtual address space:
          Function displaying console buffer always assumes its content 
          length equal to console buffer size.  This is not true and 
          sometimes it sends garbage to the screen. This patch fixes 
          this issue.
   (daniel.kiper at oracle.com)
  
 - Fix for the ARM "vtop" command when run on a module address.  Without
   the patch, the command fails with error message "vtop: ambiguous 
   address: <module-address>  (requires -u or -k)".
   (anderson at redhat.com)
  
 - Add the "--active" command line option to the crash(8) man page
   and to the "crash [-h|--help]" output.
   (anderson at redhat.com)
  
 - Add the "--buildinfo" command line option to the crash(8) man page
   and to the "crash [-h|--help]" output.
   (anderson at redhat.com)
  
 - Remove the unadvertised and unnecessary "--data_debug" command line
   option, given that it is the default setting.
   (anderson at redhat.com)
 
 - Remove the unadvertised and obsolete "--no_namelist_gzip" command 
   line option.
   (anderson at redhat.com)
 
 - Add the "-g [namelist]" command line option to the crash(8) man page
   and to the "crash [-h|--help]" output.
   (anderson at redhat.com)
 
 - Remove the unadvertised and never-implemented "--shadow_page_tables"
   command line option.
   (anderson at redhat.com)
 
 - Fix for the ARM "vtop" command when run on a user virtual address
   of the panic task.  Prior to Linux 3.3, the panic task's pgd gets
   overwritten with a pgd that identity-maps the whole address space,
   and therefore crash loses the capability of translating any user
   virtual address into its original physical address.
   (mika.westerberg at iki.fi)
 
 - Fix to prevent the ARM linker mapping symbols "$d" and "$a" from 
   being added to the list of symbols from kernel modules.  Without the
   patch, the two symbols would only be rejected from the base kernel's
   symbol list, but would be added to the symbol list of individual 
   kernel modules.
   (mika.westerberg at iki.fi)
 
 - Fix for the X86_64 "bt" command to recognize that the kernel was
   built with CONFIG_FRAME_POINTER on Linux 3.7 and later kernels
   that are configured with CONFIG_FUNCTION_TRACER.  In those kernels,
   the special 4-byte NOP instruction that can be overwritten during 
   runtime for dynamic ftracing has been moved to the very beginning
   of each function, before the function preamble.  Without the patch,
   the test that checks the function preamble to determine whether 
   CONFIG_FRAME_POINTER was configured would fail, which could
   potentially lead to less reliable backtraces.
   (anderson at redhat.com)