[Crash-utility] [ANNOUNCE] crash version 5.0.8 is available

[Dave Anderson]

 - Fix for the "bt" command on 2.6.30 and later x86_64 kernels that 
   may be seen when a System.map file is used on the command line.  
   Without the patch, the "bt" frame-by-frame output may be interspersed
   with error messages indicating "bt: invalid kernel virtual address: 
   <address> type: call byte".
   (anderson at redhat.com)

 - Fix for the KVM error messages generated by store_mapfile_offset() and
   and load_mapfile_offset() when an invalid physical address is issued.
   The errno translation displayed by both functions was irrelevant; and
   load_mapfile_offset() has been changed to show its error message only 
   if CRASHDEBUG(1) is in effect, making its behaviour similar to the 
   read functions associated with the other dumpfile types.
   (anderson at redhat.com)

 - Fix for the "sig" command on 2.6.35 and later kernels to account for
   the "signal_struct" member name change from "count" to "nr_threads". 
   Without the patch, the command would fail with the error message
   "sig: invalid structure member offset: signal_struct_count".
   (anderson at redhat.com)

 - Fix for the "net -s" command option on 2.6.33 and later kernels 
   to account for the "inet_sock" structure member name changes from
   "daddr", "rcv_saddr", "dport", "sport" and "num" to the equivalent
   name preceded by "inet_".  Without the patch, the command would fail
   for tasks with open sockets with the error message "net: invalid 
   structure member offset: inet_opt_daddr".
   (anderson at redhat.com)

 - Fix for the "mod" command on 2.6.35 and later kernels to account
   for the removal of the "owner" member from the "attribute" structure.  
   Without the patch, the "mod" command fail with the error message 
   "mod: invalid structure member offset: attribute_owner".
   (anderson at redhat.com)

 - Fix for the "mount -f" command on 2.6.36 and later kernels to account
   for the data type change of the super_block "s_files" member from 
   "struct list_head" to "struct list_head __percpu *".  The open files
   of a super_block are no longer contained on a single list, and are
   now linked onto one of the per-cpu lists.  Without the patch the 
   command would fail with the error message "mount: invalid kernel 
   virtual address: <percpu-offset>  type: first list entry".
   (anderson at redhat.com)

 - Fix for the "files" command when the vfsmount pointer in the file
   structure's "f_path" member is not suitable for the root vfsmount to
   be used when reconstructing the full file pathname.  Without the 
   patch, open files in /dev directory may be truncated and not show
   the "/dev" filename component. 
   (anderson at redhat.com)
   
 - Change to the manner in which the cpu count is determined for x86_64 
   kernels.  SLES11 2.6.32 kernels delay the call to crash_kexec() until
   after smp_send_stop() is called by panic(), and so the cpu_online_map
   cannot be used for determining the cpu count.  With the patch, the
   cpu_present_map is used.
   (Jeffrey.Hagen at teradata.com)

 - Fix for the "bt" command with 2.6.27 and later x86_64 kernels to 
   prevent the possible display of a an invalid "vgettimeofday" frame 
   above the topmost "system_call_fastpath" frame, followed by two
   read errors indicating "bt: read error: kernel virtual address: 
   ffffffffff600000  type: gdb_readmem_callback".
   (anderson at redhat.com)
 
 - Currently the "s390dbf" command uses KL_UINT() for reading pointers,
   which works only if the pointers are below 4 GiB.  To fix this issue
   a new KL_ULONG() function has been added to read pointers correctly.
   (holzheu at linux.vnet.ibm.com)

 - Implement the capability of building crash as an x86 binary for ARM
   dumpfiles on an x86_64 host.  The initial ARM support only allowed
   the building of an x86 binary for ARM dumpfiles to be done from an
   x86 host.  To build crash as an x86 binary on an x86_64 host, enter
   "make target=ARM".
   (Jan.Karlsson at sonyericsson.com)

 - Simplify the ARM build procedure after an initial ARM build has 
   been completed in a crash source tree.  With the patch, it is only 
   necessary to enter "make target=ARM" for the intial build; subsequent
   builds can be done with "make" alone, which will continue to build 
   with ARM support.
   (Jan.Karlsson at sonyericsson.com, anderson at redhat.com)

 - Implemented the capability of building an X86 crash binary on an 
   X86_64 host, which can be done by entering "make target=X86".  After
   the initial build is complete, subsequent builds can be done by 
   entering "make" alone.
   (anderson at redhat.com)

 - Fix for a regression in get_text_init_space() due to logic added by 
   the ARM processor support.  Without the patch, the function would not
   recognize the failure to find the kernel's .text.init address for 
   non-ARM architectures.
   (perr.fransson.ml at gmail.com, anderson at redhat.com)

 - Implemented support for SMP on the ARM architecture.
   (per.xx.fransson at stericsson.com)

 - Fix for the x86_64 "bt" command on 2.6.31 and later kernels when the
   crash was generated by an "echo c > /proc/sysrq-trigger".  Without
   the patch, the backtrace starts at sysrq_handle_crash() and does
   not display the exception frame from the forced oops.  This is not
   applicable to older kernels where crash_kexec() is called directly
   from sysrq_handle_crash(), or if an actual alt-sysrq-c keystroke 
   sequence is entered. 
   (anderson at redhat.com)

 - Fix to recognize module "init" symbols that are still valid, whose
   vmalloc'd virtual memory has not been vfree'd by sys_init_module().  
   Without the patch those symbols are not visible by any of the "sym" 
   command options, nor by commands that try to translate their virtual 
   addresses to a symbol name, such as the "bt" command if the kernel 
   crashed during a module load.
   (hutao at cn.fujitsu.com, anderson at redhat.com)

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