Im trying to do a little benchmarking of perl, and have patched its distro
files
to run perl's times() function on each of the ~1900 test files.
perl's times() uses man 2 times internally, which I presume reduces to a
system-call
The standard distro can be run as: HARNESS_TIMER=1 make test
but
On Sun, Mar 13, 2011 at 1:20 AM, Mulyadi Santosa
mulyadi.sant...@gmail.com wrote:
Dear Jim...
Allow me to help you by sharing what I know so far
thanks Mulyadi
This agrees with sysconf granularity :
$ getconf CLK_TCK
100
but not with linux kernel HZ:
$ grep _HZ /boot/config-`uname
OpenWrt is apparently using a stable release that isnt on kernel.org
Bartman007 wrote:
23 November 2010
The OpenWrt Release Team would like to announce a fourth release
candidate (RC4) for Backfire Interim Release 1 (10.03.1). Testing of
this release candidate will allow further refinement of
| git
On Wed, Mar 16, 2011 at 1:53 PM, Greg KH g...@kroah.com wrote:
On Wed, Mar 16, 2011 at 01:47:28PM -0600, Jim Cromie wrote:
OpenWrt is apparently using a stable release that isnt on kernel.org
Bartman007 wrote:
23 November 2010
The OpenWrt Release Team would like to announce a fourth
we have, at http://www.cs.umd.edu/projects/maranello/
Abstract
In this project, we design, implement, and evaluate Maranello, a novel
partial packet recovery mechanism for 802.11. In Maranello, the
receiver computes checksums over blocks in corrupt packets and bundles
these checksums into a
2011/3/29 Jürgen Lambrecht j.lambre...@televic.com:
Hello,
I am new to linux (coming from eCos).
My backlight driver does not start up because the reset gpio pin is not
correct specified.
How does gpio work in Linux?
theres no single way.
the new way is in drivers/gpio/* , implemented in
hi Robert,
On Tue, May 3, 2011 at 3:21 PM, Robert P. J. Day rpj...@crashcourse.ca wrote:
i'm sure i'm going to embarrass myself here but i was perusing the
char drivers for nice examples, and i ran across this excerpt in
pc8736x_gpio.c:
Thanks for taking a look, and questioning what looks
On Tue, May 3, 2011 at 4:06 PM, Greg KH g...@kroah.com wrote:
On Tue, May 03, 2011 at 05:21:11PM -0400, Robert P. J. Day wrote:
i always thought both of those routines returned a simple zero to
indicate success. but look at those last few lines -- that return
code is assigned to major, at
On Tue, May 10, 2011 at 12:40 PM, Greg KH g...@kroah.com wrote:
On Tue, May 10, 2011 at 11:26:59AM -0600, Jim Cromie wrote:
lets start with a list of grumbles about current api ?
...
Are the insanities you alluded to of a different sort,
ie internal suboptimalities ?
No, those you have
On Wed, May 11, 2011 at 11:08 AM, Vikram Narayanan vikram...@gmail.com wrote:
Hi,
Is the structure rtc_ops still used in rtc drivers in the new kernels?
If not, what is the equivalent of it?
[jimc@groucho linux-2.6.git]$ grep -r rtc_ops drivers/ |wc
159 842 11646
heres one of
over at http://code.google.com/p/ldd3/
it says:
The famous Linux Device Drivers released the sample code. but the
code does not reflect the latest kernel updates, some of code cannot
even compile. This project is to make it compatible with the current
kernel.
http://lwn.net/Kernel/LDD3/
Im trying to use macros from include/linux/compiler.h
and theyre giving me warnings that dont look right.
after thrashing on my own hacks, I looked to well established uses for guidance.
But make C=1 fs/file.o also gives errors, similar to mine.
What am I missing ?
or has some bitrot set in ?
(aside - whats the correct ML? Ive used both suggested by my mail interface)
I have 2 modules with same modinfo alias,
one installs, the other gets -ENODEV.
Id expect them to both act the same.
What am I missing ?
root@voyage:~# modprobe geode-aes
root@voyage:~# lsmod |grep geode_aes
geode_aes
On Mon, Sep 12, 2011 at 3:04 PM, mosta mosta...@googlemail.com wrote:
Hey All,
does somebody know of projects that use code generators to generate
kernel modules? I'm thinking about using a strongly typed language like
haskell with a code generator to generate kernel C-Code. I want to
hi folks,
out of habit, I build my kernels to a build tree
ie use make O=../build-foo just once,
then cd ../build-foo, and thereafter run make there
this doesnt play nice with objdump -S
--source
Display source code intermixed with disassembly, if
possible. Implies -d.
it seems its
should have gone to list..
-- Forwarded message --
From: rajaneesh acharya rajaneeshacha...@indiatimes.com
Date: Sat, Dec 10, 2011 at 2:48 AM
Subject: Re: kernel 3.2rc4 hangs if I use allyesconfig
To: Jim Cromie jim.cro...@gmail.com
Hi Jim,
allmodconfig and config borrowed
On Sat, Dec 10, 2011 at 12:46 AM, Dave Hylands dhyla...@gmail.com wrote:
Hi Jim,
On Fri, Dec 9, 2011 at 10:59 PM, Jim Cromie jim.cro...@gmail.com wrote:
hi folks,
out of habit, I build my kernels to a build tree
ie use make O=../build-foo just once,
then cd ../build-foo, and thereafter
On Tue, Mar 20, 2012 at 7:54 AM, Pritam Bankar
pritambankar1...@gmail.com wrote:
Hi,
Cal anyone help me in understanding alternative.c file from Linux source
code.
I want to learn function apply_alternative. AFAIK this code applies better
replacement to instruction set used by processor.
On Sun, Mar 25, 2012 at 2:02 PM, Suresh Kumar Subramanian
sureshkuma...@carc.co.in wrote:
Hi,
I am so interested to tune the kernel forwarding path.
My questions are,
Is it possible, to expose some API to user space to manipulate the routing
table (Ex: add equal cost /unequal cost
On Sun, Mar 11, 2012 at 11:06 PM, trisha yad trisha1ma...@gmail.com wrote:
Hi All,
I want Info about how to get patches from private Git.
I have downloaded Catalin Marinas git(ARM). I want to know check to
support ARM 15 how many patches are added, so that we can analysis the
difference.
On Tue, Apr 3, 2012 at 9:22 PM, Miles Fidelman
mfidel...@meetinghouse.net wrote:
Hello Folks,
Perhaps someone here can help me understand the behavior of the kernel reboot
code.
I've recently migrated from running a 32bit kernel to a 64bit one
(specifically Debian Lenny 32bit environment
hi folks,
Ive written a pair of patches which have an issue with __initdata
[PATCH 1/3] bug.h: add BUILD_BUG_DECL, usable at file scope
[PATCH 2/3] bug.h: add test/demo module
1st one declares a BUILD_BUG_DECL(name, condition) which breaks
compile if the condition is true, much like the other
, but
is otherwise arbitrary. You can reuse the name of one of the checked
vars, or pick something easy to find on the rare occaision when the
assertion breaks the build.
example 5 yields:
error: size of array ‘BUILD_BUG_DECL_Darth’ is negative
Signed-off-by: Jim Cromie jim.cro...@gmail.com
---
include
] cbint_get+0xd8/0x113 [build_asserts] SS:ESP 0068:c7451ee0
CR2: c8bbb000
---[ end trace bfbcc6aee803d03b ]---
Signed-off-by: Jim Cromie jim.cro...@gmail.com
---
drivers/misc/Makefile|2 +
drivers/misc/build-asserts.c | 239 ++
2 files changed
hi all,
Ive been asked whether ddebug_query= boot param is used in any distros,
I think the question seeks to determine a good deprecation schedule for it
(its been obsoleted by dyndbg= in driver-core-next)
Would you all be so kind as to check your favorite distros, and report
the ones that
have
On Wed, May 23, 2012 at 10:51 AM, Sarbojit Ganguly
unixman.linux...@gmail.com wrote:
Hello Dave,
I tried to explain this feature (no doubt you have explain it
perfectly) but he is looking for _how_ kernel module gets loaded and
somehow (I wonder how!) dubs the entire process as incremental
On Wed, Aug 29, 2012 at 10:06 PM, Sri Ram Vemulpali
sri.ram.gm...@gmail.com wrote:
Thanks for the replies again.
This time the problem is in tty specification.
Kernel supports console=tty0 (virtual terminal), where as my inittab has
entry ::sysinit:/sbin/getty -L ttyS0 vt100. I have to change
On Thu, Aug 16, 2012 at 12:39 PM, Amarnath Revanna
amarnath.reva...@gmail.com wrote:
Just want to add a little more for better understanding:
When I spoke about .init section of the final kernel image, please note that
this section is going to
contain all the __init data (and functions)
I just upgraded an old box to fedora 29
model name: Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz
when booted, none of these kernels has /sys/class/drm/* populated
and all have trouble with graphical mode,
I am causally linking these 2 facts,
does that make sense?
If so, it makes sense to
e doubts..
maybe this should go to LKML now,
but I guess Id prefer to make my obvious thinkos less publicly.
Im happy to bikeshed the commit-msg or code.
From c7b8041928565786fc58fd20e80b278cc877bef4 Mon Sep 17 00:00:00 2001
From: Jim Cromie
Date: Thu, 5 Sep 2019 00:25:34 -0600
Subject: [PATCH 1/2]
in the kernel, there are a lot of usages of __FILE__
this means that there are a lot of copies of fully rooted paths,
including all the varying ~/src/linux prefixes used by individual builders.
Id hazard a guess that something like __RELPATH_FILE__
would work in many cases and perhaps even be
hi all,
is there an api / usage model / or best practice
for opaque "handles" ?
Im aware of 1 case:
the handle returned by zs_malloc
I have tried to use it, and have run into locking conflicts
when trying to keep the memory zs_mapped
longer than the duration of a function.
OTOH, if I map and
On Wed, Oct 14, 2020 at 9:21 AM Greg KH wrote:
>
> On Wed, Oct 14, 2020 at 09:09:11AM -0600, jim.cro...@gmail.com wrote:
> > hi all,
> >
> > is there an api / usage model / or best practice
> > for opaque "handles" ?
>
> "it depends" :)
>
> What are you wanting to do exactly?
>
> > Im aware of 1
On Wed, Jul 29, 2020 at 2:54 AM Yashodhan Joshi wrote:
>
> Hello,
>
> I use a dual boot laptop with windows and Ubuntu,with grub2.
>
> I Followed the instruction in
> https://kernelnewbies.org/OutreachyfirstpatchSetup to clone the source code
> and compile the kernel, which was done without any
On Thu, Aug 27, 2020 at 6:45 AM Cao Nitro wrote:
>
> Hi all,
>
>
>
> As the title mentions, I cannot boot Linux kernel 2.6.35 or 2.6.24 with QEMU
> 5.1 on Arch Linux. QEMU hasn’t any output when running.
>
>
that is ancient.
why dont you try a new one, see if that works.
if it doesnt, youre
.config - Linux/x86 5.8.0-rc7 Kernel Configuration
> Kernel hacking > Generic Kernel Debugging Instruments > KGDB: kernel debugger
KGDB_KDB: keyboard as input device
\ │ CONFIG_KDB_KEYBOARD:
│ KDB can use a PS/2 type keyboard
for an input device
│
I notice
On Mon, Aug 3, 2020 at 11:48 AM Valdis Klētnieks
wrote:
>
> On Mon, 03 Aug 2020 11:30:05 -0600, jim.cro...@gmail.com said:
>
> > I notice this excludes USB keyboard.
> >
> > does this mean it doesnt work early enough to be useful for early panics
> > etc?
>
> Very early panics and hangs are
On Thu, Aug 6, 2020 at 4:40 AM Greg KH wrote:
>
> On Wed, Aug 05, 2020 at 12:30:15PM -0600, Jim Cromie wrote:
> > dynamic-debug metadata is bloated; the __dyndbg linker section is
> > effectively an array of struct _ddebugs, its 1st 3 members are highly
> > repetetive, wi
Ive been seeing these in my backtraces
they seem to come in both .cold and not cold flavors
are they related to unlikely() code blocks ?
81001820 t calibrate_delay_direct
81001a90 t calibrate_delay_converge
81001bb0 W calibration_delay_done
81001bc0 T
return do_execve(getname_kernel(init_filename),
(gdb)
Cannot remove breakpoints because program is no longer writable.
Further execution is probably impossible.
kernel_init (unused=) at ../init/main.c:1435
1435if (!ret)
(gdb) n
Cannot remove breakpoints because program is no lo
may go as a part of
causing the section reclaim.
Signed-off-by: Jim Cromie
---
include/asm-generic/vmlinux.lds.h | 4 +++
include/linux/dynamic_debug.h | 38 --
lib/dynamic_debug.c | 52 +--
3 files changed, 60 insertions(+), 34
dyndbg will next need zs_malloc and friends, so add config reqs now,
to avoid touching make-deps late in a patch-set.
I used select in order not to hide dyndbg inadvertently.
I want to say recommends, since it could be an optional feature.
Whats the best way ?
Signed-off-by: Jim Cromie
---
lib
I had good success with virtme, -q=-s -q=-S, and gdb target remote,
all newbies should try it.
These are on top of 5.8.0 +18 others, which GregKH added to his
char-misc-testing trees.
Jim Cromie (8):
dyndbg: give %3u width in pr-format, cosmetic only
dyndbg: motivate a diet plan
dyndbg: se
otential benefits:
- convert in-kernel mem to zram/etc
- zram compression
- eventually swap it out entirely
- map in the enabled callsites only
Signed-off-by: Jim Cromie
---
include/linux/dynamic_debug.h | 1 +
lib/dynamic_debug.c | 140 +++---
2 files ch
add ddebug_zpool_remove() to undo ddebug_zpool_add(), and call it from
ddebug_remove_module().
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 19 +++
1 file changed, 19 insertions(+)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 049299027fb3..102f47b2a439
Specify the print-width so log entries line up nicely.
no functional changes.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 1d012e597cc3..01b7d0210412 100644
--- a/lib
this table dramatically.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 17 +++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 01b7d0210412..691e79826fc2 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
that protection.
This commit adds locking to ddebug_zpool_init(), around the loop of
ddebug_zpool_add(), to match the locking in ddebug_add_module().
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/dynamic_debug.c b/lib
On Mon, Aug 10, 2020 at 3:15 AM Santosh S wrote:
>
> On Sunday, 2 August, 2020 7:57:03 PM IST Oscar Carter wrote:
> > Hi,
> >
> > I'm working in a new feature for the powerpc (64 bits little endian)
> > architecture. Since I can't test it in a real environment, I need to
> > emulate this arch. To
> Im sending to kernelnewbies 1st, to see if theres any low-speed
> test-crashes I can get post-mortems of, before I take it to the races.
>
>
So, I might as well narrate a bit here, see if I can get to a
compelling story ..
$ gdb -x ../cmds vmlinux
$ more ../cmds
target remote :1234
# hbreak
hey fellow noobs/readers
modprobe rbtree-test nnodes=1000 gets soft lockup
timing seems semi-quadratic
large sets seem to knock it over,
I cut perf_loops in 1/10, expecting that to fix it,
it didnt.
does anyone else see this ?
bash-5.0# modprobe rbtree_test
[ 17.808044][ T233] rbtree
Id like to ask about a possible new use for file and directory sticky bits,
or setuid bits, to address the root-only use of /proc (etc) files
this needs root
echo module kvm +p > /proc/dynamic_debug/control
how about this ?
cat root-owned-readonly-file > /proc/dynamic_debug/control
the
On Wed, Jun 10, 2020 at 9:37 PM Valdis Klētnieks
wrote:
>
> On Wed, 10 Jun 2020 08:24:17 -0600, jim.cro...@gmail.com said:
> > Id like to ask about a possible new use for file and directory sticky bits,
> > or setuid bits, to address the root-only use of /proc (etc) files
>
> The sticky bit and
considering lib/dynamic_debug.c
we have
...
} else if (!strcmp(words[i], "module")) {
rc = check_set(>module, words[i+1], "module");
} else if (!strcmp(words[i], "format")) {
...
are there any built-in hash functions which would allow this ?
switch (keyword) {
case Hash("module"):
On Fri, Jun 12, 2020 at 11:02 PM Valdis Klētnieks
wrote:
>
> On Fri, 12 Jun 2020 12:05:55 -0600, jim.cro...@gmail.com said:
> > considering lib/dynamic_debug.c
> > we have
> >
> > ...
> > } else if (!strcmp(words[i], "module")) {
> > rc = check_set(>module, words[i+1], "module");
> > } else
abled callsites only
TLDR
Note also that the format pointer is kept 2x in dynamic-debug; once
inside the struct _ddebug, and again as the fmt parameter in the
*_dbg() functions and macro stack. I dont see how 'fixing' this is
worthwhile.
Signed-off-by: Jim Cromie
---
include/linux/dynamic_d
f other dyndbg patches,
which are now in gregkh's char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-next branch.
Jim Cromie (3):
dyndbg: WIP replace __dyndbg section with a zs-pool copy.
dyndbg: zhandle+1 plus info
ll needed (flags cant be in zram for non-JUMP_LABEL
builds), so maybe it ends up there.
Or perhaps the linker can be convinced to be slightly less
parsimonious with the ram, making this is_odd() test viable.
Signed-off-by: Jim Cromie
---
include/linux/dynamic_debug.h | 5 +
lib/dynamic_debug.c
elys on the 'fact' uhm
observation that zhandles were always even numbered. So far so good.
Also add BUG-ONs to track/assert invariants into ddebug_zpool_init
and the get/put inline helpers, and several debug prints.
Signed-off-by: Jim Cromie
---
lib/dynamic_debug.c
so I was looking at the following code, from dynamic_debug.c,
I saw a minor code optimization, and wondered whether
its already optimized away by compiler.
Instead of actually testing it ( I intend to eventually )
I figure Id ask if you all want to take an educated guess ?
or perhaps just do the
So Im seeing these pr_debug messages from kernel/module.c
[ 624.32] dyndbg: 336 debug prints in module i915
[ 624.891526] module:find_symbol: Failed to find symbol i915_gpu_busy
[ 624.891528] module:find_symbol: Failed to find symbol i915_gpu_lower
[ 624.891530] module:find_symbol: Failed
Im attempting to conditionally link an input section.
if the just linked similarly named section wasnt empty.
__start___dyndbg = .; \
_ = .; \ \
KEEP(*(__dyndbg (.-_)? gnu.linkonce.d.__dyndbg)) \
__stop___dyndbg = .;
it gives me an unspecified linker syntax error
On Thu, Jan 28, 2021 at 4:57 PM Valdis Klētnieks
wrote:
> On Thu, 28 Jan 2021 12:11:54 -0700, jim.cro...@gmail.com said:
>
> > In my hacking, Im finding this useful.
> > it adds a version of KBUILD_MODNAME without the quotes
>
> OK, I'll bite. When and how is this useful?
>
>
heres my use
hi folks,
In my hacking, Im finding this useful.
it adds a version of KBUILD_MODNAME without the quotes
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -119,7 +119,7 @@ target-stem = $(basename $(patsubst $(obj)/%,%,$@))
# end up in (or would, if it gets compiled in)
name-fix = $(call
On Thu, Jan 28, 2021 at 5:16 PM wrote:
>
>
> On Thu, Jan 28, 2021 at 4:57 PM Valdis Klētnieks
> wrote:
>
>> On Thu, 28 Jan 2021 12:11:54 -0700, jim.cro...@gmail.com said:
>>
>> > In my hacking, Im finding this useful.
>> > it adds a version of KBUILD_MODNAME without the quotes
>>
>> OK, I'll
... and somethings not right. debugger KBUILD_SYM shows it:
these records are same as those shown in early boot output pasted previously
these records look right
(gdb) p *__start___dyndbg_sites@10
$2 = {{modname = 0x825a8ab9 "head64",
filename = 0x825a8ac0
On Wed, Jun 16, 2021 at 2:05 AM Greg KH wrote:
>
> On Tue, Jun 15, 2021 at 12:26:19PM -0600, jim.cro...@gmail.com wrote:
> > On Tue, Jun 15, 2021 at 10:24 AM Greg KH wrote:
> > >
> > > On Tue, Jun 15, 2021 at 10:06:08AM -0600, jim.cro...@gmail.com wrote:
> > > > On Mon, Jun 14, 2021 at 1:20 AM
On Wed, Jun 16, 2021 at 11:50 AM wrote:
>
> On Wed, Jun 16, 2021 at 2:05 AM Greg KH wrote:
> >
> > On Tue, Jun 15, 2021 at 12:26:19PM -0600, jim.cro...@gmail.com wrote:
> > > On Tue, Jun 15, 2021 at 10:24 AM Greg KH wrote:
> > > >
> > > > On Tue, Jun 15, 2021 at 10:06:08AM -0600,
On Mon, Jun 14, 2021 at 1:20 AM Greg KH wrote:
>
> On Mon, Jun 14, 2021 at 01:09:25AM -0600, jim.cro...@gmail.com wrote:
> > serio_raw is apparently tainting the kernel when its modprobed.
> > why ? other modules load properly, no code changes to this module
> >
> > bash-5.1# dmesg | grep -i
serio_raw is apparently tainting the kernel when its modprobed.
why ? other modules load properly, no code changes to this module
bash-5.1# dmesg | grep -i taint
[6.517150] serio_raw: module verification failed: signature and/or
required key missing - tainting kernel
[7.449072] CPU: 0
On Tue, Jun 15, 2021 at 10:24 AM Greg KH wrote:
>
> On Tue, Jun 15, 2021 at 10:06:08AM -0600, jim.cro...@gmail.com wrote:
> > On Mon, Jun 14, 2021 at 1:20 AM Greg KH wrote:
> > >
> > > On Mon, Jun 14, 2021 at 01:09:25AM -0600, jim.cro...@gmail.com wrote:
> > > > serio_raw is apparently tainting
On Sun, May 9, 2021 at 12:41 AM loïc tourlonias
wrote:
>
> > if using a posix thread full fills the requirement of RTOS. The reason
> > I want to use RTOS is , I am porting a Microcontroller code using RTOS
> > (free RTOS) to Linux and
> > afaik FreeRTOS doesnt work on Linux.
> > > FreeRTOS is a
so as a proof of concept, Ive converted drm to use dynamic-debug
drm has ~dozen categories of debug messages, mapped to bits
in drm.debug, aka /sys/module/drm/parameters/debug
these bits are checked at runtime by drm_debug_enabled()
to do drm debug printing.
my patchset updates users of
On Mon, May 17, 2021 at 9:28 AM Hyeonggon Yoo <42.hye...@gmail.com> wrote:
>
> Hello, there are lots of drivers in linux.
>
> My questions are:
>
> - how can we test driver? is it just using that device for a long
> time as a user?
>
testing is hard. Having the device is highly recommended.
On Mon, May 17, 2021 at 5:54 PM Hyeonggon Yoo <42.hye...@gmail.com> wrote:
>
> On Mon, May 17, 2021 at 12:48:38PM -0600, jim.cro...@gmail.com wrote:
> > On Mon, May 17, 2021 at 9:28 AM Hyeonggon Yoo <42.hye...@gmail.com> wrote:
> > >
> > > Hello, there are lots of drivers in linux.
> > >
> > > My
hi all,
When one builds with CONFIG_DYNAMIC_DEBUG=y
one consumes extra memory for kernel data
Ive managed to coax dyndbg into "not needing" about 30KiB in a
__dyndbg* section,
how can I return it to the kernel ?
https://lore.kernel.org/lkml/20210529200029.205306-1-jim.cro...@gmail.com/
b4:
Solved !
On Fri, Jul 2, 2021 at 7:39 AM wrote:
>
> On Thu, Jul 1, 2021 at 9:53 PM Connor Kuehl wrote:
> >
> > Maybe there’s a hardware switch that toggles airplane mode? Might not be,
> > since I’d think that would be kind of redundant if there’s a fn key
> > dedicated to it, but I remember
On Sun, Jul 4, 2021 at 9:36 AM Valdis Klētnieks wrote:
>
> On Sun, 04 Jul 2021 11:13:08 +0200, Abd-Alrhman Masalkhi said:
>
> > I have allready set up the .gitconfig file with following configuration:
> >
> > smtpEncryption = ssl
> > smtpServer = smtp.gmail.com
> > smtpUser =
On Thu, Jul 1, 2021 at 9:53 PM Connor Kuehl wrote:
>
> Maybe there’s a hardware switch that toggles airplane mode? Might not be,
> since I’d think that would be kind of redundant if there’s a fn key dedicated
> to it, but I remember my previous laptops had a physical slider switch for
>
On Fri, Jul 2, 2021 at 2:11 PM abdalrhman masalkhi
wrote:
>
> Hello everyone, I am having some trouble replying to other comments, I have
> submitted some patches and then I have received some comments from reviews, I
> tried to reply to them by just prefixing the subject line Re: instead of
>
On Thu, Jul 1, 2021 at 2:03 PM Ian Pilcher wrote:
>
> On 7/1/21 12:59 PM, Greg KH wrote:
> > Oh that's horrible, please no, do not do that :)
>
> Indeed it is, but it works, and it meets my main objective, which is to
> allow the use of distribution kernel packages and modules.
>
> > How about a
while fumbling to pause grub during boot,
I think I managed to disable the wifi.
its affecting distro kernel, and my own
booting with iwlwifi.debug=0xff on command line
shows me
iwl_pcie_apm_init Init card's basic functions
reporting RF_KILL (radio disabled)
It is reading that from somewhere,
I have an old 686 machine, running fedora 30
(last fedora supporting 686)
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz
stepping : 10
microcode : 0xa0b
cpu MHz : 1614.044
cache size : 3072 KB
I generally keep it with
On Thu, Jul 1, 2021 at 3:49 PM wrote:
>
> while fumbling to pause grub during boot,
> I think I managed to disable the wifi.
>
and booting a live usb gets same result
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On Sun, Apr 25, 2021 at 6:02 AM Jeffrey Walton wrote:
>
> On Sun, Apr 25, 2021 at 7:09 AM John Wood wrote:
> >
> > I'm working in a LSM to detect and mitigate fork brute force attacks
> > against vulnerable userspace applications. Now, to fine tuning the
> > detection I want to detect a network
On Thu, Apr 22, 2021 at 1:37 AM Luca Ceresoli wrote:
> Hello,
>
> despite having been searching for documentation I couldn't find out the
> exact and detailed difference between the .shutdown() and .remove()
> calls in struct device_driver.
>
>
so, I'll start by saying I know next to nothing,
>
>
>
> I've found running a kernel under qemu with my normal rootfs to be quite
> useful to quickly try out things. See the qemu-test script in the RAUC
> project
> for an example: https://github.com/rauc/rauc/blob/master/qemu-test
>
>
I would agree.
I find "virtme" tool to be super simple and
so when I enable the pr_debug()s in kernel/module,
and boot that kernel, I get a raft of messages (~800),
like :
[ 110.072535] module:find_symbol: Failed to find symbol
drm_scdc_get_scrambling_status
[ 110.072538] module:find_symbol: Failed to find symbol drm_scdc_read
[ 110.072541]
On Thu, Mar 25, 2021 at 6:53 AM Navin P wrote:
> Hi,
>
> As of 5.11 kernel (pid,pid_start_time) is not unique /monotonic even
> though the underlying counters are .
> I chose start_boottime because i wanted the counter to increase
> during suspend as well.
>
> 1. Is there any case where
On Sat, Mar 20, 2021 at 1:07 PM Martin Herdeis wrote:
> Hello,
>
> I am trying to learn more about the kernel build system and due to that I
> tried the following in the top level Kconfig file right at the beginning:
>
> config FOO
> tristate
> prompt "FOO"
> config BAR
>
I have a patchset which touches vmlinux.lds.h 2x
1st inserts a few lines,
2nd moves them and related to a separate macro.
this is sub-optimal, if new macro is warranted,
it should just do that in 1st change.
or maybe 3rd option.
move existing to macro- no functional change
then do 2
On Tue, Mar 30, 2021 at 7:16 AM Andrew Adamson
wrote:
> Hi Everyone,
>
> I tried to build the kernel myself for the first a few days ago. While the
> build was successful, I am unable to boot to it. After grub I get a
> blinking cursor for 15 to 30 minutes, and then a message that says "Please
>
On Tue, Mar 9, 2021 at 3:25 PM Valdis Klētnieks
wrote:
> On Tue, 09 Mar 2021 12:55:14 -0700, jim.cro...@gmail.com said:
>
> > To use the index, I need _sites[], and that only works
> > for builtin-module's callsites. For loaded modules, I can/have
> > added a pointer to the section into
so Im trying to constrain the linker to put ELF section pairs
into contiguous chunks of memory.
this is on top of:
https://lore.kernel.org/lkml/20210316050801.2446401-1-jim.cro...@gmail.com/
The macro below works when used in vmlinux.lds.h,
it does pack the sections as desired.
but same macro,
On Sat, Feb 13, 2021 at 11:58 AM Trevor Woerner wrote:
> Hi,
>
> It's true that you do need a device tree overlay to tell the kernel that
> you
> want to use the 1-wire bus, and you have to tell the kernel which GPIO pin
> you
> want to use as the 1 wire, but after that, attaching DS18B20
Im trying to reduce memory used by
internal tables built into DYNAMIC_DEBUG
the main savings available is in the per pr_debug*
callsite data: modname, filename, funcname.
I have segregated those fields to a new __dyndbg_sites section,
described by struct _ddebug_site, and now refd by new ptr in
On Thu, Feb 18, 2021 at 8:07 PM wrote:
> Hello folks,
>
> When we want to use an old .config file for a new kernel build, we can use
> (place in build location) that .config and do ‘make oldconfig’ so that the
> build system lets us to fill the new config variables.
>
> I'm curious if this 'make
On Sat, Aug 14, 2021 at 6:21 PM Valdis Klētnieks
wrote:
>
> On Fri, 13 Aug 2021 18:08:38 -0600, jim.cro...@gmail.com said:
>
> > then I added BTRFS_FS, since thats the host fs.
> > of course it didnt work.
>
> > VFS: Cannot open root device "(null)" or unknown-block(0,0): error -2
> > Please
so I got this macro which depends upon config choices to work,
Id like to have alt-config versions which throw some obvious error.
like this:
#elif (defined(CONFIG_DYNAMIC_DEBUG_CORE) && !defined(DYNAMIC_DEBUG_MODULE))
#define DEFINE_DYNAMIC_DEBUG_CATEGORIES(fsname, var, bitmap_desc, ...) \
trimming out the "noise", Im left with
>39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> | ^~
> /home/jimc/projects/lx/wk-next/include/linux/dynamic_debug.h:283:9:
> note: in expansion of macro
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