[Crash-utility] [ANNOUNCE] crash version 6.1.0 is available

[Dave Anderson]

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

Changelog:

 - Fix for 32-bit SADUMP dumpfiles to correctly check whether a
   requested physical address is within the 0-640K backup region.
   Without the patch, requested physical addresses that are larger 
   than 32-bits are truncated to 32-bit values, leading to unexpected
   results.
   (d.hatayama at jp.fujitsu.com)

 - Added support for the ELF dumpfile type that is generated by the new
   "virsh dump --memory-only" option.  The "--memory-only" option uses 
   a new "dump-guest-memory" QEMU monitor command that creates an ELF
   kdump vmcore clone.  The "virsh dump" command continues to borrow 
   the "migrate" QEMU monitor command to create a file that is designed
   for guest migration, and not well-suited for a vmcore because it is
   not designed for random-access of physical memory.  A new "help -r"
   option has been added to dump the registers that are stored in
   per-cpu "QEMU" ELF notes; those notes are used to distinguish this 
   dumpfile type from regular kdump ELF vmcores.  The patch also 
   combines common functionality between the new format and the SADUMP
   format.
   (qiaonuohan at cn.fujitsu.com, anderson at redhat.com)

 - Fix for the "runq" command for kernels that have the CFS scheduler.
   Without the patch, a cpu's RT runqueue may incorrectly display 
   "[no tasks queued]" when in fact there are tasks on its queue.
   (anderson at redhat.com)

 - In the highly-unlikely event that a pre-Linux 3.5 kernel's log buffer 
   cannot be read during initialization, display a message indicating
   "WARNING: cannot read log_buf contents", and just continue.  Without 
   the patch, a "readmem" error would be displayed and the crash session
   would be killed.
   (anderson at redhat.com)

 - Updated the "net -a" option to support Linux 2.6.9 to 3.6.0.  Without
   the patch, the option displayed "net: -a option not supported or 
   applicable on this architecture or kernel".
   (makc at redhat.com)

 - Enhanced the "net -a" option to show the struct neighbour address
   associated with each line of output.
   (makc at redhat.com)

 - Fix for the "runq" command for kernels that are configured with 
   CONFIG_RT_GROUP_SCHED.  Without the patch, tasks contained within
   an RT group scheduling entity are not displayed. 
   (zhangyanfei at cn.fujitsu.com)

 - Fix for "crash --version" or "crash -v" to prevent the sourcing
   of a .gdbinit file that is located in the current directory.
   (anderson at redhat.com)

 - Preemptive fix to handle this patch to the x86 devmem_is_allowed()
   function that was posted on the Linux Kernel Mailing List here:  
     https://lkml.org/lkml/2012/8/28/357
   If the proposed kernel patch put into place, a failed attempt to 
   use /dev/mem when the kernel is configured with CONFIG_STRICT_DEVMEM
   will not result in an automatic attempt to use /proc/kcore.  With
   this crash utility patch, the automatic switch to /proc/kcore will 
   be attempted regardless whether the kernel patch is accepted or not.
   (anderson at redhat.com)

 - Patch for CVE-2012-3509: libiberty: objalloc_alloc integer overflows
   (fw at deneb.enyo.de)

 - Fix for Linux 3.0 and later kernels that have been configured with 
   CONFIG_SLAB, and without CONFIG_NODES_SHIFT (or have set it to 0).
   Without the patch, the warning messages "crash: nr_node_ids: symbol 
   does not exist" and "crash: unable to initialize kmem slab cache 
   subsystem" are displayed during initialization, and the "kmem -[sS]"
   options fail with the message "kmem: kmem cache slab subsystem not
   available". 
   (per.fransson at ml.gmail.com, anderson at redhat.com)

 - Allow the build procedure to use an alternate compiler by passing
   "make CC=<compiler>" to the top-level Makefile.
   (anderson at redhat.com)

 - Allow the user to append options to the "configure" script that is 
   invoked by the initial embedded gdb build procedure.  The additional
   options should be put in a file named "GDBFLAGS.extra" located in the 
   top-level directory.
   (anderson at redhat.com)

 - Change for the "ps" command if a task is stopped due to the task
   being traced by another task.  Without the patch, the traced task
   is shown with the "ST" (stopped) status; with the patch it will be 
   shown with a "TR" (traced) status.  
   (anderson at redhat.com, qiaonuohan at cn.fujitsu.com)

 - The "TR" state has been added to the "foreach" command's list of task
   state qualifiers.  Without the patch, there is no way to filter out
   tasks that are stopped due to being traced by another task.
   (anderson at redhat.com)

 - Fix for passing a a "gdb" command to a crash session via a pipe 
   if there are any spaces preceding the "gdb" command name in the
   string.  Without the patch, the command will fail with the error
   message "gdb: gdb request failed: <truncated input-string>".
   (qiaonuohan at cn.fujitsu.com)

 - Preparation for the future S390/S390X structure name change from
   "_lowcore" to "lowcore".  The patch checks which structure is defined
   and uses the correct name.
   (holzheu at linux.vnet.ibm.com)

 - Replaced datatype_info() calls in do_radix_tree() and do_rdtree() 
   with preferred MEMBER_SIZE() macro.
   (anderson at redhat.com)