09 Jul, 2020
1 commit
-
In order to perform future tests against the cred saved during open(),
switch kallsyms_show_value() to operate on a cred, and have all current
callers pass current_cred(). This makes it very obvious where callers
are checking the wrong credential in their "read" contexts. These will
be fixed in the coming patches.Additionally switch return value to bool, since it is always used as a
direct permission check, not a 0-on-success, negative-on-error style
function return.Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook
10 Jun, 2020
1 commit
-
Patch series "Add log level to show_stack()", v3.
Add log level argument to show_stack().
Done in three stages:
1. Introducing show_stack_loglvl() for every architecture
2. Migrating old users with an explicit log level
3. Renaming show_stack_loglvl() into show_stack()Justification:
- It's a design mistake to move a business-logic decision into platform
realization detail.- I have currently two patches sets that would benefit from this work:
Removing console_loglevel jumps in sysrq driver [1] Hung task warning
before panic [2] - suggested by Tetsuo (but he probably didn't realise
what it would involve).- While doing (1), (2) the backtraces were adjusted to headers and other
messages for each situation - so there won't be a situation when the
backtrace is printed, but the headers are missing because they have
lesser log level (or the reverse).- As the result in (2) plays with console_loglevel for kdb are removed.
The least important for upstream, but maybe still worth to note that every
company I've worked in so far had an off-list patch to print backtrace
with the needed log level (but only for the architecture they cared
about). If you have other ideas how you will benefit from show_stack()
with a log level - please, reply to this cover letter.See also discussion on v1:
https://lore.kernel.org/linux-riscv/20191106083538.z5nlpuf64cigxigh@pathway.suse.cz/This patch (of 50):
print_ip_sym() needs to have a log level parameter to comply with other
parts being printed. Otherwise, half of the expected backtrace would be
printed and other may be missing with some logging level.The following callee(s) are using now the adjusted log level:
- microblaze/unwind: the same level as headers & userspace unwind.
Note that pr_debug()'s there are for debugging the unwinder itself.
- nds32/traps: symbol addresses are printed with the same log level
as backtrace headers.
- lockdep: ip for locking issues is printed with the same log level
as other part of the warning.
- sched: ip where preemption was disabled is printed as error like
the rest part of the message.
- ftrace: bug reports are now consistent in the log level being used.Signed-off-by: Dmitry Safonov
Signed-off-by: Andrew Morton
Acked-by: Steven Rostedt (VMware)
Cc: Albert Ou
Cc: Ben Segall
Cc: Dietmar Eggemann
Cc: Greentime Hu
Cc: Greg Kroah-Hartman
Cc: Ingo Molnar
Cc: James Hogan
Cc: Juri Lelli
Cc: Mel Gorman
Cc: Michal Simek
Cc: Palmer Dabbelt
Cc: Paul Burton
Cc: Paul Walmsley
Cc: Peter Zijlstra
Cc: Ralf Baechle
Cc: Thomas Gleixner
Cc: Vincent Chen
Cc: Vincent Guittot
Cc: Will Deacon
Cc: Dmitry Safonov
Cc: Dmitry Safonov
Cc: Jiri Slaby
Cc: Petr Mladek
Cc: Sergey Senozhatsky
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Richard Henderson
Cc: Vineet Gupta
Cc: Russell King
Cc: Catalin Marinas
Cc: Aurelien Jacquiot
Cc: Mark Salter
Cc: Guo Ren
Cc: Yoshinori Sato
Cc: Brian Cain
Cc: Fenghua Yu
Cc: Tony Luck
Cc: Geert Uytterhoeven
Cc: Ley Foon Tan
Cc: Jonas Bonn
Cc: Stafford Horne
Cc: Stefan Kristiansson
Cc: Helge Deller
Cc: "James E.J. Bottomley"
Cc: Benjamin Herrenschmidt
Cc: Michael Ellerman
Cc: Paul Mackerras
Cc: Christian Borntraeger
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: Rich Felker
Cc: "David S. Miller"
Cc: Anton Ivanov
Cc: Jeff Dike
Cc: Richard Weinberger
Cc: Guan Xuetao
Cc: Borislav Petkov
Cc: "H. Peter Anvin"
Cc: Chris Zankel
Cc: Max Filippov
Cc: Len Brown
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: "Rafael J. Wysocki"
Cc: Daniel Thompson
Cc: Douglas Anderson
Cc: Jason Wessel
Link: http://lkml.kernel.org/r/20200418201944.482088-2-dima@arista.com
Signed-off-by: Linus Torvalds
07 Feb, 2018
1 commit
-
print_ip_sym() is mostly used for debugging, so I think it should print
the raw addresses.Link: http://lkml.kernel.org/r/1514519382-405-1-git-send-email-chenhc@lemote.com
Signed-off-by: Huacai Chen
Cc: Kees Cook
Cc: Fuxin Zhang
Cc: "Tobin C. Harding"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
02 Feb, 2018
1 commit
-
Pull printk updates from Petr Mladek:
- Add a console_msg_format command line option:
The value "default" keeps the old "[time stamp] text\n" format. The
value "syslog" allows to see the syslog-like "[timestamp] text" format.This feature was requested by people doing regression tests, for
example, 0day robot. They want to have both filtered and full logs
at hands.- Reduce the risk of softlockup:
Pass the console owner in a busy loop.
This is a new approach to the old problem. It was first proposed by
Steven Rostedt on Kernel Summit 2017. It marks a context in which
the console_lock owner calls console drivers and could not sleep.
On the other side, printk() callers could detect this state and use
a busy wait instead of a simple console_trylock(). Finally, the
console_lock owner checks if there is a busy waiter at the end of
the special context and eventually passes the console_lock to the
waiter.The hand-off works surprisingly well and helps in many situations.
Well, there is still a possibility of the softlockup, for example,
when the flood of messages stops and the last owner still has too
much to flush.There is increasing number of people having problems with
printk-related softlockups. We might eventually need to get better
solution. Anyway, this looks like a good start and promising
direction.- Do not allow to schedule in console_unlock() called from printk():
This reverts an older controversial commit. The reschedule helped
to avoid softlockups. But it also slowed down the console output.
This patch is obsoleted by the new console waiter logic described
above. In fact, the reschedule made the hand-off less effective.- Deprecate "%pf" and "%pF" format specifier:
It was needed on ia64, ppc64 and parisc64 to dereference function
descriptors and show the real function address. It is done
transparently by "%ps" and "pS" format specifier now.Sergey Senozhatsky found that all the function descriptors were in
a special elf section and could be easily detected.- Remove printk_symbol() API:
It has been obsoleted by "%pS" format specifier, and this change
helped to remove few continuous lines and a less intuitive old API.- Remove redundant memsets:
Sergey removed unnecessary memset when processing printk.devkmsg
command line option.* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (27 commits)
printk: drop redundant devkmsg_log_str memsets
printk: Never set console_may_schedule in console_trylock()
printk: Hide console waiter logic into helpers
printk: Add console owner and waiter logic to load balance console writes
kallsyms: remove print_symbol() function
checkpatch: add pF/pf deprecation warning
symbol lookup: introduce dereference_symbol_descriptor()
parisc64: Add .opd based function descriptor dereference
powerpc64: Add .opd based function descriptor dereference
ia64: Add .opd based function descriptor dereference
sections: split dereference_function_descriptor()
openrisc: Fix conflicting types for _exext and _stext
lib: do not use print_symbol()
irq debug: do not use print_symbol()
sysfs: do not use print_symbol()
drivers: do not use print_symbol()
x86: do not use print_symbol()
unicore32: do not use print_symbol()
sh: do not use print_symbol()
mn10300: do not use print_symbol()
...
22 Jan, 2018
1 commit
16 Jan, 2018
1 commit
-
No more print_symbol()/__print_symbol() users left, remove these
symbols.It was a very old API that encouraged people use continuous lines.
It had been obsoleted by %pS format specifier in a normal printk()
call.Link: http://lkml.kernel.org/r/20180105102538.GC471@jagdpanzerIV
Cc: Andrew Morton
Cc: Russell King
Cc: Catalin Marinas
Cc: Mark Salter
Cc: Tony Luck
Cc: David Howells
Cc: Yoshinori Sato
Cc: Guan Xuetao
Cc: Borislav Petkov
Cc: Greg Kroah-Hartman
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Vineet Gupta
Cc: Fengguang Wu
Cc: Steven Rostedt
Cc: LKML
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-sh@vger.kernel.org
Cc: linux-edac@vger.kernel.org
Cc: x86@kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: Sergey Senozhatsky
Signed-off-by: Sergey Senozhatsky
Suggested-by: Joe Perches
[pmladek@suse.com: updated commit message]
Signed-off-by: Petr Mladek
09 Jan, 2018
1 commit
-
dereference_symbol_descriptor() invokes appropriate ARCH specific
function descriptor dereference callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
kernel symbol;- dereference_module_function_descriptor() if the pointer is a
module symbol.This is the last step needed to make '%pS/%ps' smart enough to
handle function descriptor dereference on affected ARCHs and
to retire '%pF/%pf'.To refresh it:
Some architectures (ia64, ppc64, parisc64) use an indirect pointer
for C function pointers - the function pointer points to a function
descriptor and we need to dereference it to get the actual function
pointer.Function descriptors live in .opd elf section and all affected
ARCHs (ia64, ppc64, parisc64) handle it properly for kernel and
modules. So we, technically, can decide if the dereference is
needed by simply looking at the pointer: if it belongs to .opd
section then we need to dereference it.The kernel and modules have their own .opd sections, obviously,
that's why we need to split dereference_function_descriptor()
and use separate kernel and module dereference arch callbacks.Link: http://lkml.kernel.org/r/20171206043649.GB15885@jagdpanzerIV
Cc: Fenghua Yu
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: James Bottomley
Cc: Andrew Morton
Cc: Jessica Yu
Cc: Steven Rostedt
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sergey Senozhatsky
Tested-by: Tony Luck #ia64
Tested-by: Santosh Sivaraj #powerpc
Tested-by: Helge Deller #parisc64
Signed-off-by: Petr Mladek
30 Nov, 2017
1 commit
-
The conditional kallsym hex printing used a special fixed-width '%lx'
output (KALLSYM_FMT) in preparation for the hashing of %p, but that
series ended up adding a %px specifier to help with the conversions.Use it, and avoid the "print pointer as an unsigned long" code.
Signed-off-by: Linus Torvalds
14 Nov, 2017
1 commit
-
As reported by kernelci and other build bots, we now get a link
failure without CONFIG_KALLSYMS:module.c:(.text+0xf2c): undefined reference to `kallsyms_show_value'
This adds a dummy helper with the same name that can be used
for compilation. It's not entirely clear to me what this
should return for !CONFIG_KALLSYMS, I picked an unconditional
'false', which leads to the module address being unavailable
to user space.Link: https://kernelci.org/build/mainline/branch/master/kernel/v4.14-5-g516fb7f2e73d/
Fixes: 516fb7f2e73d ("/proc/module: use the same logic as /proc/kallsyms for address exposure")
Signed-off-by: Arnd Bergmann
Signed-off-by: Linus Torvalds
13 Nov, 2017
1 commit
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The (alleged) users of the module addresses are the same: kernel
profiling.So just expose the same helper and format macros, and unify the logic.
Signed-off-by: Linus Torvalds
02 Nov, 2017
1 commit
-
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
30 May, 2012
1 commit
-
Using %ps in a printk format will sometimes fail silently and print the
empty string if the address passed in does not match a symbol that
kallsyms knows about. But using %pS will fall back to printing the full
address if kallsyms can't find the symbol. Make %ps act the same as %pS
by falling back to printing the address.While we're here also make %ps print the module that a symbol comes from
so that it matches what %pS already does. Take this simple function for
example (in a module):static void test_printk(void)
{
int test;
pr_info("with pS: %pS\n", &test);
pr_info("with ps: %ps\n", &test);
}Before this patch:
with pS: 0xdff7df44
with ps:After this patch:
with pS: 0xdff7df44
with ps: 0xdff7df44Signed-off-by: Stephen Boyd
Cc: Ingo Molnar
Cc: Peter Zijlstra
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Nov, 2011
1 commit
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Standardize the style for compiler based printf format verification.
Standardized the location of __printf too.Done via script and a little typing.
$ grep -rPl --include=*.[ch] -w "__attribute__" * | \
grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'[akpm@linux-foundation.org: revert arch bits]
Signed-off-by: Joe Perches
Cc: "Kirill A. Shutemov"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Mar, 2011
1 commit
-
The %pB format specifier is for stack backtrace. Its handler
sprint_backtrace() does symbol lookup using (address-1) to
ensure the address will not point outside of the function.If there is a tail-call to the function marked "noreturn",
gcc optimized out the code after the call then causes saved
return address points outside of the function (i.e. the start
of the next function), so pollutes call trace somewhat.This patch adds the %pB printk mechanism that allows architecture
call-trace printout functions to improve backtrace printouts.Signed-off-by: Namhyung Kim
Acked-by: Steven Rostedt
Acked-by: Frederic Weisbecker
Cc: Linus Torvalds
Cc: Andrew Morton
Cc: linux-arch@vger.kernel.org
LKML-Reference:
Signed-off-by: Ingo Molnar
16 Dec, 2009
1 commit
-
According to feature-removal-schedule.txt, it is the time to remove
print_fn_descriptor_symbol().And a quick grep shows that it no longer has any callers.
Signed-off-by: WANG Cong
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 Mar, 2009
1 commit
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Impact: New API
kallsyms_lookup_name only returns the first match that it finds. Ksplice
needs information about all symbols with a given name in order to correctly
resolve local symbols.kallsyms_on_each_symbol provides a generic mechanism for iterating over the
kallsyms table.Cc: Jeff Arnold
Cc: Tim Abbott
Signed-off-by: Anders Kaseorg
Signed-off-by: Rusty Russell
17 Oct, 2008
1 commit
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Use the '%pF' format to get rid of an "#ifdef DEBUG" and make some printks
atomic.This removes the last in-tree uses of print_fn_descriptor_symbol(). I
marked print_fn_descriptor_symbol() deprecated and scheduled it for
removal next year to give time for out-of-tree modules to be updated.parisc's print_fn_descriptor_symbol() is currently broken there (it needs
to dereference the function pointer similar to ia64 and power). This
patch shouldn't make anything worse, but it means we need to fix
dereference_function_descriptor() instead of print_fn_descriptor_symbol()
to get meaningful initcall_debug output.Signed-off-by: Bjorn Helgaas
Cc: Jesse Barnes
Cc: Kyle McMartin
Cc: "Rafael J. Wysocki"
Cc: Kay Sievers
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 Jul, 2008
1 commit
-
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jul, 2008
1 commit
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Use the %p format string which already accounts for the padding you need
with a pointer type on a particular architecture.Also replace the macro with a static inline function to match the rest of
the file.Cc: Heiko Carstens
Cc: Arjan van de Ven
Signed-off-by: Vegard Nossum
Cc: Sam Ravnborg
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 May, 2008
1 commit
-
Everybody wants to pass it a function pointer, and in fact, that is what
you _must_ pass it for it to make sense (since it knows that ia64 and
ppc64 use descriptors for function pointers and fetches the actual
address from there).So don't make the argument be a 'unsigned long' and force everybody to
add a cast.Signed-off-by: Linus Torvalds
06 Nov, 2007
1 commit
-
The Build with randconfig fails with following error with the
2.6.24-rc4-git9include/linux/kallsyms.h:56: error: `NULL' undeclared (first use in this
function)
include/linux/kallsyms.h:56: error: (Each undeclared identifier is
reported only once
include/linux/kallsyms.h:56: error: for each function it appears in.)
make[2]: *** [arch/powerpc/platforms/cell/spu_callbacks.o] Error 1
make[1]: *** [arch/powerpc/platforms/cell] Error 2
make: *** [arch/powerpc/platforms] Error 2Signed-off-by: Kamalesh Babulal
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Jul, 2007
1 commit
-
KSYM_NAME_LEN is peculiar in that it does not include the space for the
trailing '\0', forcing all users to use KSYM_NAME_LEN + 1 when allocating
buffer. This is nonsense and error-prone. Moreover, when the caller
forgets that it's very likely to subtly bite back by corrupting the stack
because the last position of the buffer is always cleared to zero.This patch increments KSYM_NAME_LEN by one and updates code accordingly.
* off-by-one bug in asm-powerpc/kprobes.h::kprobe_lookup_name() macro
is fixed.* Where MODULE_NAME_LEN and KSYM_NAME_LEN were used together,
MODULE_NAME_LEN was treated as if it didn't include space for the
trailing '\0'. Fix it.Signed-off-by: Tejun Heo
Acked-by: Paulo Marques
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Jul, 2007
1 commit
-
This patch fixes the following 2.6.22 regression with CONFIG_KALLSYMS=n:
...
CC arch/m32r/kernel/traps.o
In file included from /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/m32r/kernel/traps.c:14:
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h: In function 'lookup_symbol_name':
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: 'ERANGE' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: for each function it appears in.)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h: In function 'lookup_symbol_attrs':
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:71: error: 'ERANGE' undeclared (first use in this function)
make[2]: *** [arch/m32r/kernel/traps.o] Error 1Signed-off-by: Adrian Bunk
Signed-off-by: Linus Torvalds
09 May, 2007
2 commits
-
Same story as with cat /proc/*/wchan race vs rmmod race, only
/proc/slab_allocators want more info than just symbol name.Signed-off-by: Alexey Dobriyan
Acked-by: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
kallsyms_lookup() can go iterating over modules list unprotected which is OK
for emergency situations (oops), but not OK for regular stuff like
/proc/*/wchan.Introduce lookup_symbol_name()/lookup_module_symbol_name() which copy symbol
name into caller-supplied buffer or return -ERANGE. All copying is done with
module_mutex held, so...Signed-off-by: Alexey Dobriyan
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 May, 2007
1 commit
-
Today's print_symbol function dumps a kernel symbol with printk. This
patch extends the functionality of kallsyms.c so that the symbol lookup
function may be used without the printk. This is useful for modules that
want to dump symbols elsewhere, for example, to debugfs. I intend to use
the new function call in the GFS2 file system (which will be a separate
patch).[akpm@linux-foundation.org: build fix]
[clameter@sgi.com: sprint_symbol should return length of string like sprintf]
Signed-off-by: Robert Peterson
Cc: Rusty Russell
Cc: Roman Zippel
Cc: "Randy.Dunlap"
Cc: Sam Ravnborg
Acked-by: Paulo Marques
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Oct, 2006
1 commit
-
Some uses of kallsyms_lookup() do not need to find out the name of a symbol
and its module's name it belongs. This is specially true in arch specific
code, which needs to unwind the stack to show the back trace during oops
(mips is an example). In this specific case, we just need to retreive the
function's size and the offset of the active intruction inside it.Adds a new entry "kallsyms_lookup_size_offset()" This new entry does
exactly the same as kallsyms_lookup() but does not require any buffers to
store any names.It returns 0 if it fails otherwise 1.
Signed-off-by: Franck Bui-Huu
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Jul, 2006
2 commits
-
Provide a common print_ip_sym() function that prints the passed instruction
pointer as well as the symbol belonging to it. Avoids adding a bunch of
#ifdef CONFIG_64BIT in order to get the printk format right on 32/64 bit
platforms.Acked-by: Ingo Molnar
Cc: Arjan van de Ven
Signed-off-by: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Have a special version of print_symbol() for s390 which clears the most
significant bit of addr before calling __print_symbol(). This seems to be
better than checking/changing each place in the kernel that saves an
instruction pointer.Without this the output would look like:
hardirqs last enabled at (30907): [] 0x80018c6a
hardirqs last disabled at (30908): [] 0x8001e48c
softirqs last enabled at (30904): [] 0x8001dc96
softirqs last disabled at (30897): [] 0x8001dc50instead of this:
hardirqs last enabled at (19421): [] cpu_idle+0x176/0x1c4
hardirqs last disabled at (19422): [] io_no_vtime+0xa/0x1a
softirqs last enabled at (19418): [] do_softirq+0xa6/0xe8
softirqs last disabled at (19411): [] do_softirq+0x60/0xe8Acked-by: Ingo Molnar
Cc: Arjan van de Ven
Cc: Martin Schwidefsky
Signed-off-by: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Apr, 2006
1 commit
-
Signed-off-by: David Woodhouse
17 Apr, 2005
1 commit
-
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
