[Crash-utility] crash version 4.0-3.20 is available

- Merged third round of "xencrash" patches, which allows a crash session to alternatively be brought up against the xen-syms binary instead of a vmlinux kernel. This update introduces support for ia64. (oda(a)valinux.co.jp) - Verified support of live system analysis of ia64 xen kernels, and removed unnecessary EFI memory verification warning message during their initialization. (anderson(a)redhat.com) - Added gdb's "shell" command to the prohibited gdb command list, and updated the "help output" page to describe shell escape usage. (anderson(a)redhat.com) - Fix for the x86 "bt" command for the 2.6.20 kernel, which has added the "xgs" field to the pt_regs structure. Without this patch, the exception frame dump in "bt" would show invalid contents for several registers; the fix also shows the GS register contents. (anderson(a)redhat.com) - Fix for the "mount" command for the 2.6.20 kernel to recognize the new "nsproxy" field in the task_struct and the contents of the nsproxy and mnt_namespace structures, in order to find the root mount namespace. Without the patch, the command would fail with: "mount: invalid kernel virtual address: 69 type: first list entry". (anderson(a)redhat.com) - Fix for the "files" command for the 2.6.20 kernel to handle the removal of the fdtable "max_fdset" member. Without the patch, the command would fail with: "files: invalid structure member offset: fdtable_max_fdset". (anderson(a)redhat.com) - Fix for the "net -[sS]" command options for the 2.6.20 kernel to handle the removal of the fdtable "max_fdset" member. Without the patch, the command would fail with: "net: invalid structure member offset: fdtable_max_fdset". (anderson(a)redhat.com) - Fix for the "vm" command for the 2.6.20 kernel to handle the removal of the file structure's "f_dentry" member, and its placement inside the embedded "path" structure. Without the patch the command would fail with: "vm: invalid structure member offset: file_f_dentry". (anderson(a)redhat.com) - Fix for the "swap" command for the 2.6.20 kernel to handle the removal of the file structure's "f_vfsmnt" member, and its placement inside the embedded "path" structure. Without the patch the command would fail with: "swap: invalid structure member offset: file_f_vfsmnt". (anderson(a)redhat.com) Download from: http://people.redhat.com/anderson