<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/arch/microblaze/kernel/process.c, branch v5.9.8</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>mm: remove unneeded includes of &lt;asm/pgalloc.h&gt;</title>
<updated>2020-08-07T18:33:26+00:00</updated>
<author>
<name>Mike Rapoport</name>
<email>rppt@linux.ibm.com</email>
</author>
<published>2020-08-07T06:22:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ca15ca406f660ad5fab55b851d2b269ce915c88d'/>
<id>ca15ca406f660ad5fab55b851d2b269ce915c88d</id>
<content type='text'>
Patch series "mm: cleanup usage of &lt;asm/pgalloc.h&gt;"

Most architectures have very similar versions of pXd_alloc_one() and
pXd_free_one() for intermediate levels of page table.  These patches add
generic versions of these functions in &lt;asm-generic/pgalloc.h&gt; and enable
use of the generic functions where appropriate.

In addition, functions declared and defined in &lt;asm/pgalloc.h&gt; headers are
used mostly by core mm and early mm initialization in arch and there is no
actual reason to have the &lt;asm/pgalloc.h&gt; included all over the place.
The first patch in this series removes unneeded includes of
&lt;asm/pgalloc.h&gt;

In the end it didn't work out as neatly as I hoped and moving
pXd_alloc_track() definitions to &lt;asm-generic/pgalloc.h&gt; would require
unnecessary changes to arches that have custom page table allocations, so
I've decided to move lib/ioremap.c to mm/ and make pgalloc-track.h local
to mm/.

This patch (of 8):

In most cases &lt;asm/pgalloc.h&gt; header is required only for allocations of
page table memory.  Most of the .c files that include that header do not
use symbols declared in &lt;asm/pgalloc.h&gt; and do not require that header.

As for the other header files that used to include &lt;asm/pgalloc.h&gt;, it is
possible to move that include into the .c file that actually uses symbols
from &lt;asm/pgalloc.h&gt; and drop the include from the header file.

The process was somewhat automated using

	sed -i -E '/[&lt;"]asm\/pgalloc\.h/d' \
                $(grep -L -w -f /tmp/xx \
                        $(git grep -E -l '[&lt;"]asm/pgalloc\.h'))

where /tmp/xx contains all the symbols defined in
arch/*/include/asm/pgalloc.h.

[rppt@linux.ibm.com: fix powerpc warning]

Signed-off-by: Mike Rapoport &lt;rppt@linux.ibm.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Reviewed-by: Pekka Enberg &lt;penberg@kernel.org&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;	[m68k]
Cc: Abdul Haleem &lt;abdhalee@linux.vnet.ibm.com&gt;
Cc: Andy Lutomirski &lt;luto@kernel.org&gt;
Cc: Arnd Bergmann &lt;arnd@arndb.de&gt;
Cc: Christophe Leroy &lt;christophe.leroy@csgroup.eu&gt;
Cc: Joerg Roedel &lt;joro@8bytes.org&gt;
Cc: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Satheesh Rajendran &lt;sathnaga@linux.vnet.ibm.com&gt;
Cc: Stafford Horne &lt;shorne@gmail.com&gt;
Cc: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Cc: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Cc: Joerg Roedel &lt;jroedel@suse.de&gt;
Cc: Matthew Wilcox &lt;willy@infradead.org&gt;
Link: http://lkml.kernel.org/r/20200627143453.31835-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200627143453.31835-2-rppt@kernel.org
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Patch series "mm: cleanup usage of &lt;asm/pgalloc.h&gt;"

Most architectures have very similar versions of pXd_alloc_one() and
pXd_free_one() for intermediate levels of page table.  These patches add
generic versions of these functions in &lt;asm-generic/pgalloc.h&gt; and enable
use of the generic functions where appropriate.

In addition, functions declared and defined in &lt;asm/pgalloc.h&gt; headers are
used mostly by core mm and early mm initialization in arch and there is no
actual reason to have the &lt;asm/pgalloc.h&gt; included all over the place.
The first patch in this series removes unneeded includes of
&lt;asm/pgalloc.h&gt;

In the end it didn't work out as neatly as I hoped and moving
pXd_alloc_track() definitions to &lt;asm-generic/pgalloc.h&gt; would require
unnecessary changes to arches that have custom page table allocations, so
I've decided to move lib/ioremap.c to mm/ and make pgalloc-track.h local
to mm/.

This patch (of 8):

In most cases &lt;asm/pgalloc.h&gt; header is required only for allocations of
page table memory.  Most of the .c files that include that header do not
use symbols declared in &lt;asm/pgalloc.h&gt; and do not require that header.

As for the other header files that used to include &lt;asm/pgalloc.h&gt;, it is
possible to move that include into the .c file that actually uses symbols
from &lt;asm/pgalloc.h&gt; and drop the include from the header file.

The process was somewhat automated using

	sed -i -E '/[&lt;"]asm\/pgalloc\.h/d' \
                $(grep -L -w -f /tmp/xx \
                        $(git grep -E -l '[&lt;"]asm/pgalloc\.h'))

where /tmp/xx contains all the symbols defined in
arch/*/include/asm/pgalloc.h.

[rppt@linux.ibm.com: fix powerpc warning]

Signed-off-by: Mike Rapoport &lt;rppt@linux.ibm.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Reviewed-by: Pekka Enberg &lt;penberg@kernel.org&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;	[m68k]
Cc: Abdul Haleem &lt;abdhalee@linux.vnet.ibm.com&gt;
Cc: Andy Lutomirski &lt;luto@kernel.org&gt;
Cc: Arnd Bergmann &lt;arnd@arndb.de&gt;
Cc: Christophe Leroy &lt;christophe.leroy@csgroup.eu&gt;
Cc: Joerg Roedel &lt;joro@8bytes.org&gt;
Cc: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Satheesh Rajendran &lt;sathnaga@linux.vnet.ibm.com&gt;
Cc: Stafford Horne &lt;shorne@gmail.com&gt;
Cc: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Cc: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Cc: Joerg Roedel &lt;jroedel@suse.de&gt;
Cc: Matthew Wilcox &lt;willy@infradead.org&gt;
Link: http://lkml.kernel.org/r/20200627143453.31835-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200627143453.31835-2-rppt@kernel.org
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>arch: rename copy_thread_tls() back to copy_thread()</title>
<updated>2020-07-04T21:41:37+00:00</updated>
<author>
<name>Christian Brauner</name>
<email>christian.brauner@ubuntu.com</email>
</author>
<published>2020-06-11T09:04:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=714acdbd1c94e7e3ab90f6b6938f1ccb27b662f0'/>
<id>714acdbd1c94e7e3ab90f6b6938f1ccb27b662f0</id>
<content type='text'>
Now that HAVE_COPY_THREAD_TLS has been removed, rename copy_thread_tls()
back simply copy_thread(). It's a simpler name, and doesn't imply that only
tls is copied here. This finishes an outstanding chunk of internal process
creation work since we've added clone3().

Cc: linux-arch@vger.kernel.org
Acked-by: Thomas Bogendoerfer &lt;tsbogend@alpha.franken.de&gt;A
Acked-by: Stafford Horne &lt;shorne@gmail.com&gt;
Acked-by: Greentime Hu &lt;green.hu@gmail.com&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;A
Reviewed-by: Kees Cook &lt;keescook@chromium.org&gt;
Signed-off-by: Christian Brauner &lt;christian.brauner@ubuntu.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Now that HAVE_COPY_THREAD_TLS has been removed, rename copy_thread_tls()
back simply copy_thread(). It's a simpler name, and doesn't imply that only
tls is copied here. This finishes an outstanding chunk of internal process
creation work since we've added clone3().

Cc: linux-arch@vger.kernel.org
Acked-by: Thomas Bogendoerfer &lt;tsbogend@alpha.franken.de&gt;A
Acked-by: Stafford Horne &lt;shorne@gmail.com&gt;
Acked-by: Greentime Hu &lt;green.hu@gmail.com&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;A
Reviewed-by: Kees Cook &lt;keescook@chromium.org&gt;
Signed-off-by: Christian Brauner &lt;christian.brauner@ubuntu.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>microblaze: switch to copy_thread_tls()</title>
<updated>2020-07-04T21:41:37+00:00</updated>
<author>
<name>Christian Brauner</name>
<email>christian.brauner@ubuntu.com</email>
</author>
<published>2020-05-24T21:19:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ad1bb82c057ecebfdb0b619e023c57b425ef7e7e'/>
<id>ad1bb82c057ecebfdb0b619e023c57b425ef7e7e</id>
<content type='text'>
Use the copy_thread_tls() calling convention which passes tls through a
register. This is required so we can remove the copy_thread{_tls}() split
and remove the HAVE_COPY_THREAD_TLS macro.

Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Signed-off-by: Christian Brauner &lt;christian.brauner@ubuntu.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Use the copy_thread_tls() calling convention which passes tls through a
register. This is required so we can remove the copy_thread{_tls}() split
and remove the HAVE_COPY_THREAD_TLS macro.

Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Signed-off-by: Christian Brauner &lt;christian.brauner@ubuntu.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>arch: remove unused macro/function thread_saved_pc()</title>
<updated>2017-06-28T23:13:57+00:00</updated>
<author>
<name>Tobias Klauser</name>
<email>tklauser@distanz.ch</email>
</author>
<published>2017-06-28T13:30:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6474924e2b5ddb0030c355558966adcbe3b49022'/>
<id>6474924e2b5ddb0030c355558966adcbe3b49022</id>
<content type='text'>
The only user of thread_saved_pc() in non-arch-specific code was removed
in commit 8243d5597793 ("sched/core: Remove pointless printout in
sched_show_task()").  Remove the implementations as well.

Some architectures use thread_saved_pc() in their arch-specific code.
Leave their thread_saved_pc() intact.

Signed-off-by: Tobias Klauser &lt;tklauser@distanz.ch&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The only user of thread_saved_pc() in non-arch-specific code was removed
in commit 8243d5597793 ("sched/core: Remove pointless printout in
sched_show_task()").  Remove the implementations as well.

Some architectures use thread_saved_pc() in their arch-specific code.
Leave their thread_saved_pc() intact.

Signed-off-by: Tobias Klauser &lt;tklauser@distanz.ch&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>sched/headers: Prepare for new header dependencies before moving code to &lt;linux/sched/task_stack.h&gt;</title>
<updated>2017-03-02T07:42:36+00:00</updated>
<author>
<name>Ingo Molnar</name>
<email>mingo@kernel.org</email>
</author>
<published>2017-02-08T17:51:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=68db0cf10678630d286f4bbbbdfa102951a35faa'/>
<id>68db0cf10678630d286f4bbbbdfa102951a35faa</id>
<content type='text'>
We are going to split &lt;linux/sched/task_stack.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/task_stack.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We are going to split &lt;linux/sched/task_stack.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/task_stack.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>sched/headers: Prepare for new header dependencies before moving code to &lt;linux/sched/task.h&gt;</title>
<updated>2017-03-02T07:42:35+00:00</updated>
<author>
<name>Ingo Molnar</name>
<email>mingo@kernel.org</email>
</author>
<published>2017-02-08T17:51:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=299300258d1bc4e997b7db340a2e06636757fe2e'/>
<id>299300258d1bc4e997b7db340a2e06636757fe2e</id>
<content type='text'>
We are going to split &lt;linux/sched/task.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/task.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We are going to split &lt;linux/sched/task.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/task.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>sched/headers: Prepare for new header dependencies before moving code to &lt;linux/sched/debug.h&gt;</title>
<updated>2017-03-02T07:42:34+00:00</updated>
<author>
<name>Ingo Molnar</name>
<email>mingo@kernel.org</email>
</author>
<published>2017-02-08T17:51:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b17b01533b719e9949e437abf66436a875739b40'/>
<id>b17b01533b719e9949e437abf66436a875739b40</id>
<content type='text'>
We are going to split &lt;linux/sched/debug.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/debug.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We are going to split &lt;linux/sched/debug.h&gt; out of &lt;linux/sched.h&gt;, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder &lt;linux/sched/debug.h&gt; file that just
maps to &lt;linux/sched.h&gt; to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>microblaze: Fix sparse warning because of missing cpu.h header</title>
<updated>2014-04-07T11:45:17+00:00</updated>
<author>
<name>Michal Simek</name>
<email>michal.simek@xilinx.com</email>
</author>
<published>2014-02-28T12:07:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=579907e622067b13f8c6134c1b311664e77743b5'/>
<id>579907e622067b13f8c6134c1b311664e77743b5</id>
<content type='text'>
Warning:
arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle'
was not declared. Should it be static?

Signed-off-by: Michal Simek &lt;michal.simek@xilinx.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Warning:
arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle'
was not declared. Should it be static?

Signed-off-by: Michal Simek &lt;michal.simek@xilinx.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>microblaze: Enable IRQ in arch_cpu_idle</title>
<updated>2013-05-09T08:46:16+00:00</updated>
<author>
<name>Michal Simek</name>
<email>michal.simek@xilinx.com</email>
</author>
<published>2013-05-09T08:32:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=a047775e7eff511a529bf65f3b3e9c11443789b2'/>
<id>a047775e7eff511a529bf65f3b3e9c11443789b2</id>
<content type='text'>
Microblaze requires to enable IRQ in cpu_idle loop.

It should be the part of this patch:
"microblaze: Use generic idle loop"
(sha1: e962bb9e9cf73b8c8893c95903e791dd5ec19fb4)

Signed-off-by: Michal Simek &lt;michal.simek@xilinx.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Microblaze requires to enable IRQ in cpu_idle loop.

It should be the part of this patch:
"microblaze: Use generic idle loop"
(sha1: e962bb9e9cf73b8c8893c95903e791dd5ec19fb4)

Signed-off-by: Michal Simek &lt;michal.simek@xilinx.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dump_stack: unify debug information printed by show_regs()</title>
<updated>2013-05-01T00:04:02+00:00</updated>
<author>
<name>Tejun Heo</name>
<email>tj@kernel.org</email>
</author>
<published>2013-04-30T22:27:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=a43cb95d547a061ed5bf1acb28e0f5fd575e26c1'/>
<id>a43cb95d547a061ed5bf1acb28e0f5fd575e26c1</id>
<content type='text'>
show_regs() is inherently arch-dependent but it does make sense to print
generic debug information and some archs already do albeit in slightly
different forms.  This patch introduces a generic function to print debug
information from show_regs() so that different archs print out the same
information and it's much easier to modify what's printed.

show_regs_print_info() prints out the same debug info as dump_stack()
does plus task and thread_info pointers.

* Archs which didn't print debug info now do.

  alpha, arc, blackfin, c6x, cris, frv, h8300, hexagon, ia64, m32r,
  metag, microblaze, mn10300, openrisc, parisc, score, sh64, sparc,
  um, xtensa

* Already prints debug info.  Replaced with show_regs_print_info().
  The printed information is superset of what used to be there.

  arm, arm64, avr32, mips, powerpc, sh32, tile, unicore32, x86

* s390 is special in that it used to print arch-specific information
  along with generic debug info.  Heiko and Martin think that the
  arch-specific extra isn't worth keeping s390 specfic implementation.
  Converted to use the generic version.

Note that now all archs print the debug info before actual register
dumps.

An example BUG() dump follows.

 kernel BUG at /work/os/work/kernel/workqueue.c:4841!
 invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
 Modules linked in:
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #7
 Hardware name: empty empty/S3992, BIOS 080011  10/26/2007
 task: ffff88007c85e040 ti: ffff88007c860000 task.ti: ffff88007c860000
 RIP: 0010:[&lt;ffffffff8234a07e&gt;]  [&lt;ffffffff8234a07e&gt;] init_workqueues+0x4/0x6
 RSP: 0000:ffff88007c861ec8  EFLAGS: 00010246
 RAX: ffff88007c861fd8 RBX: ffffffff824466a8 RCX: 0000000000000001
 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffffffff8234a07a
 RBP: ffff88007c861ec8 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8234a07a
 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 FS:  0000000000000000(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: ffff88015f7ff000 CR3: 00000000021f1000 CR4: 00000000000007f0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Stack:
  ffff88007c861ef8 ffffffff81000312 ffffffff824466a8 ffff88007c85e650
  0000000000000003 0000000000000000 ffff88007c861f38 ffffffff82335e5d
  ffff88007c862080 ffffffff8223d8c0 ffff88007c862080 ffffffff81c47760
 Call Trace:
  [&lt;ffffffff81000312&gt;] do_one_initcall+0x122/0x170
  [&lt;ffffffff82335e5d&gt;] kernel_init_freeable+0x9b/0x1c8
  [&lt;ffffffff81c47760&gt;] ? rest_init+0x140/0x140
  [&lt;ffffffff81c4776e&gt;] kernel_init+0xe/0xf0
  [&lt;ffffffff81c6be9c&gt;] ret_from_fork+0x7c/0xb0
  [&lt;ffffffff81c47760&gt;] ? rest_init+0x140/0x140
  ...

v2: Typo fix in x86-32.

v3: CPU number dropped from show_regs_print_info() as
    dump_stack_print_info() has been updated to print it.  s390
    specific implementation dropped as requested by s390 maintainers.

Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Acked-by: Jesper Nilsson &lt;jesper.nilsson@axis.com&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Cc: Fengguang Wu &lt;fengguang.wu@intel.com&gt;
Cc: Mike Frysinger &lt;vapier@gentoo.org&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Acked-by: Chris Metcalf &lt;cmetcalf@tilera.com&gt;		[tile bits]
Acked-by: Richard Kuo &lt;rkuo@codeaurora.org&gt;		[hexagon bits]
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
show_regs() is inherently arch-dependent but it does make sense to print
generic debug information and some archs already do albeit in slightly
different forms.  This patch introduces a generic function to print debug
information from show_regs() so that different archs print out the same
information and it's much easier to modify what's printed.

show_regs_print_info() prints out the same debug info as dump_stack()
does plus task and thread_info pointers.

* Archs which didn't print debug info now do.

  alpha, arc, blackfin, c6x, cris, frv, h8300, hexagon, ia64, m32r,
  metag, microblaze, mn10300, openrisc, parisc, score, sh64, sparc,
  um, xtensa

* Already prints debug info.  Replaced with show_regs_print_info().
  The printed information is superset of what used to be there.

  arm, arm64, avr32, mips, powerpc, sh32, tile, unicore32, x86

* s390 is special in that it used to print arch-specific information
  along with generic debug info.  Heiko and Martin think that the
  arch-specific extra isn't worth keeping s390 specfic implementation.
  Converted to use the generic version.

Note that now all archs print the debug info before actual register
dumps.

An example BUG() dump follows.

 kernel BUG at /work/os/work/kernel/workqueue.c:4841!
 invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
 Modules linked in:
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #7
 Hardware name: empty empty/S3992, BIOS 080011  10/26/2007
 task: ffff88007c85e040 ti: ffff88007c860000 task.ti: ffff88007c860000
 RIP: 0010:[&lt;ffffffff8234a07e&gt;]  [&lt;ffffffff8234a07e&gt;] init_workqueues+0x4/0x6
 RSP: 0000:ffff88007c861ec8  EFLAGS: 00010246
 RAX: ffff88007c861fd8 RBX: ffffffff824466a8 RCX: 0000000000000001
 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffffffff8234a07a
 RBP: ffff88007c861ec8 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8234a07a
 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 FS:  0000000000000000(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: ffff88015f7ff000 CR3: 00000000021f1000 CR4: 00000000000007f0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Stack:
  ffff88007c861ef8 ffffffff81000312 ffffffff824466a8 ffff88007c85e650
  0000000000000003 0000000000000000 ffff88007c861f38 ffffffff82335e5d
  ffff88007c862080 ffffffff8223d8c0 ffff88007c862080 ffffffff81c47760
 Call Trace:
  [&lt;ffffffff81000312&gt;] do_one_initcall+0x122/0x170
  [&lt;ffffffff82335e5d&gt;] kernel_init_freeable+0x9b/0x1c8
  [&lt;ffffffff81c47760&gt;] ? rest_init+0x140/0x140
  [&lt;ffffffff81c4776e&gt;] kernel_init+0xe/0xf0
  [&lt;ffffffff81c6be9c&gt;] ret_from_fork+0x7c/0xb0
  [&lt;ffffffff81c47760&gt;] ? rest_init+0x140/0x140
  ...

v2: Typo fix in x86-32.

v3: CPU number dropped from show_regs_print_info() as
    dump_stack_print_info() has been updated to print it.  s390
    specific implementation dropped as requested by s390 maintainers.

Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
Acked-by: David S. Miller &lt;davem@davemloft.net&gt;
Acked-by: Jesper Nilsson &lt;jesper.nilsson@axis.com&gt;
Cc: Heiko Carstens &lt;heiko.carstens@de.ibm.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Cc: Fengguang Wu &lt;fengguang.wu@intel.com&gt;
Cc: Mike Frysinger &lt;vapier@gentoo.org&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Acked-by: Chris Metcalf &lt;cmetcalf@tilera.com&gt;		[tile bits]
Acked-by: Richard Kuo &lt;rkuo@codeaurora.org&gt;		[hexagon bits]
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
