10:06 a.m.
Download from: http://people.redhat.com/anderson
Changelog:
- Fixed several typos in the updated crash.8 man page.
(bob.montgomery(a)hp.com)
- Created a new "rd -a" option that displays printable ASCII data only,
starting from the specified location. If a "count" argument is not
entered, the display stops upon encountering the first non-printable
character.
(anderson(a)redhat.com)
- Fix for the "search -k" option on X86 kernels whose first memmap page
structure does not map to physical address 0. Without the patch, the
identity-mapped region of the first memory node would not be searched.
(anderson(a)redhat.com)
- Fix for the "search -k" option in the highly unlikely case of kernels
that have multiple NUMA nodes that are not sequential with respect to
their node IDs and the physical memory they reference, have physical
memory holes between any of the nodes, and do not have memmap page
structures referencing the non-existent inter-node physical memory.
In that event, it is conceivable that a NUMA node would be skipped.
(anderson(a)redhat.com)
- If the "kmem <address>" argument is a virtual address inside a
kernel module, the first item displayed is the address, followed by
its symbol type, and its symbol-name-plus-offset string. This patch
appends the module name in brackets, similar to what is displayed if
"sym <address>" is entered.
(anderson(a)redhat.com)
- Fix for "kmem -s <address>" in kernels configured with CONFIG_SLUB
and CONFIG_PAGEFLAGS_EXTENDED if the address is contained in a page
other than the first page in a compound, multi-page, slab. Without
the patch, the command would fail with the message "kmem: address is
not allocated in slab subsystem: <address>".
(anderson(a)redhat.com)
- Created a new "rd -N" option that displays 16- and 32-bit data in
network byte order, performing byte-swapping if appropriate.
(makc(a)gmx.co.uk)
- Fix for a compiler warning when building with "make warn". Without
the patch, memory.c generates a message indicating "kernel.c: In
function ‘back_trace’:" followed by 17 messages indicating "kernel.c:
2187: warning: ‘btsave.<member>’ may be used uninitialized in this
function", where there is one message for each <member> of the
bt_info structure.
(anderson(a)redhat.com)
- Updated the #define of NR_SECTION_ROOTS to match its change upstream
that prevents its value from being calculated to be zero.
(takuo.koguchi.sw(a)hitachi.com, anderson(a)redhat.com)
- Fix for a double-free() in the unlikely event of a readmem() failure
in the ARM architecture's read_module_unwind_table() function.
(mika.westerberg(a)iki.fi)
- Updates to support CONFIG_SPARSEMEM for the ARM architecture.
(mika.westerberg(a)iki.fi)
- Extended the "mach" command to display the size and address of each
per-cpu IRQ stack and per-cpu exception stack, if they exist. This
extension is applicable to the x86_64 and ppc64 architectures, and
the x86 architecture if applicable. Prior to this patch, the values
were only accessible via "help -t" or "help -m".
(anderson(a)redhat.com)
- Created a new "kmem -o" option that dumps each cpu's offset value
that is added to per-cpu symbol values to translate them into kernel
virtual addresses. Prior to this patch, the values were only
accessible via "help -k".
(anderson(a)redhat.com)
- Removed the "kmem [-[l|L][a|i]]" options from being advertised by
the "kmem" help page; the options have been obsolete since the Linux
version 2.2 timeframe.
(anderson(a)redhat.com)
- Fix to support Linux 3.x version number change. Without the patch,
the crash session fails with kernel version 3.0 and later, displaying
the message "WARNING: kernel version inconsistency between vmlinux
and [live memory or dumpfile]", followed by the fatal error message
"crash: incompatible arguments: vmlinux is not SMP -- [live system or
dumpfile] is SMP".
(sebott(a)linux.vnet.ibm.com, anderson(a)redhat.com)
- Updates to the sial.c extension module to support the Linux 3.x
version number change.
(sebott(a)linux.vnet.ibm.com, Luc.Chouinard(a)trueposition.com)
- Created a new "kmem -g [flags]" option that displays the enumerator
value of bits in the page structure's "flags" field. With no
"flags"
argument, the enumerator value of all bits are displayed; when a
hexadecimal "flags" option is added, just the bits in the value are
translated. This option only works with 2.6.26 and later kernels,
which contain the "enum pageflags".
(anderson(a)redhat.com)