On Sat, 30 Mar 2024 21:52:29 -0300, Camila Alvarez Inostroza said:
> I've seen two ways of handling the resulting operation, below are a couple
> of examples:
> (1) if (!atomic_dec_and_test(>refcount))
>return;
> call_rcu(>rcu, free_rootdomain);
>
> (2) if
On Fri, 05 Jan 2024 10:42:53 +0530, Aditya Gupta said:
> It's a good start to use the distro config for building a kernel.
> PS. I have been able to successfully boot by building with defconfig, then
> manually enabling some drivers according to error messages during boot,
'make localmodconfig'
On Thu, 21 Dec 2023 17:58:23 +0530, Dileep Sankhla said:
> I have cloned and built the latest rc kernel using the default config but
> on boot, it stucks at "Loading initial ramdisk". I have tried booting after
> removing the "quiet" option from the kernel parameters just before
> selecting the
On Sat, 09 Dec 2023 00:16:32 +0800, Dawei Li said:
> Greetings!
> (Although I am using the 2.6.34 version, I believe the question is generally
> applicable to any kernel version.)
That is, in general, a bad assumption when you are looking at kernel versions
old enough that they count as digital
On Fri, 26 May 2023 13:28:36 +0530, Deepak Goel said:
> I did an online Google search but couldn't get much. Tried ChatGPT too, but
> couldn't get much help.
Note that ChatGPT is *NOT*, repeat *NOT* a reliable source of information,
because it has no concept of "correctness" or "accuracy" of the
On Sat, 27 May 2023 07:05:40 +0100, Lucas Tanure said:
> It's unusual for an I2C bus would suddenly stop working, so just one
> check at the beginning of the function is enough.
> I would remove all ret assignments apart from the first one for every
> function on that driver.
By the same token,
On Fri, 19 May 2023 13:38:37 -0600, jim.cro...@gmail.com said:
> hi all,
>
> anyone familiar enough with running lkp-tests to recognize these errors ?
> any hints / guesses welcome !
Did you already check all the embarrassingly obvious things like a file system
being full and/or out of inodes,
On Tue, 16 May 2023 12:42:19 +0530, Deepak Goel said:
> I want to learn more about Linux.
Step 0:
Learn what a kernel is, and what userspace is.
Figure out if you are trying to learn how to use/administer a Linux-based
system, or how to write user programs that run on Linux-based computers, or
On Mon, 15 May 2023 18:58:33 +1000, Naruto Nguyen said:
> My system during idle sometimes has high sysload in 2,3 seconds
> (around 70% sysload) and then come back to normal after that. I see it
...
> CPU. Because I can reproduce the issue to see it, but only during 3 or
> 4 minutes,
...
> Could
On Mon, 13 Mar 2023 21:28:28 +0900, "Chan Kim" said:
> which is 32-bit addressable. Even if the device indicates (via the DMA
> mask)
> that it may address the upper 32-bits, consistent allocation will only
> return > 32-bit addresses for DMA if the consistent DMA mask has been
> explicitly
On Fri, 09 Dec 2022 12:58:20 -0700, jim.cro...@gmail.com said:
> On Fri, Dec 9, 2022 at 9:14 AM Adrian Fiergolski
> wrote:
> > Does the community have any other ideas? Or I am wrong, and devm_iounmap is
> > enough?
> I dunno, but it says you asked ~4 hrs ago.
> I bet you could just try it and
On Sat, 01 Oct 2022 18:56:41 +0200, Philipp Hortmann said:
> Here some examples of the names I want to change.
Why? What actual improvement would accrue from doing this?
(Hint: the code is almost certainly in drivers/staging because it has
far worse issues than just using camel-case variable
On Fri, 08 Jul 2022 10:11:53 +0900, "Chan Kim" said:
> I get the message "tftp: sendto: Network is unreachable".
Unless you did something *really* drastic, like figure out how to build
the kernel without IPv4 support (is that even possible yet?), or leave out
support for whatever virtual network
On Mon, 04 Jul 2022 16:57:23 +0200, Andrea Tomassetti said:
> From: Andrea Tomassetti
>
> Hi all,
> thank you very much to have pointed out the footer problem.
>
> It took sometime to my IT dpt to figure out a solution, but
> now we have it.
Hopefully, their solution was "Don't blindly attach
On Fri, 10 Jun 2022 16:34:03 +0200, Greg KH said:
> Now deleted.
>
> Note, this footer requires kernel developers to delete any email sent
> with it as it is not compatible with the kernel license at all.
I had a standard form letter for that sort of nonsense, which asked if they
wanted us to
On Mon, 06 Jun 2022 23:09:02 -0700, ozzloy said:
> lol, when do you sleep?
> you reply so quickly, and did so last time i tried too.
> thanks for the feedback. much appreciated!
A long time ago on a mailing list far away, Linus Torvalds said:
"Note that nobody reads every post in
On Mon, 23 May 2022 17:37:09 +0300, David Kra said:
> I am considering modifying the scheduler and governor to get a jackrabbit
> start whenever a process is dispatched. Before learning how to, I would
> like some advice on whether to, and how much to do.
Step 0: gather actual data, and see if
On Wed, 11 May 2022 21:19:42 -, Muhammad Ali said:
> Does the Linux-syscall-note say that a.out can ALL be under any license of
> your choice?
> Or do you have to note that your binary is under License X and also includes
> code which is under license GPL-2.0-WITH-Linux-syscall-note?
Not a
On Thu, 28 Apr 2022 11:15:27 +0200, Vincent Ray said:
> Then I guess it could be preempted at any time, especially with aggressive
> versions of preemptions ?
> And if so, are we not at risk that our thread is migrated to an other CPU
> just after smp_processor_id returned ?
Often, we don't
On Thu, 03 Mar 2022 20:51:09 +0530, Guddla Rupesh said:
> Finally my request is there any way to export instruct set of my cpu to the
> kernel configuration and so after compilation my video encoding takes less
> time than previous.
Why would the instruction set used by the kernel matter, when
On Wed, 23 Feb 2022 17:24:49 -0300, Rog�rio Valentim Feitoza da Silva said:
> How do I start contributing to the Linux kernel, as a person who has
> never contributed before?
First, figure out *why* you want to contribute.
On Sun, 20 Feb 2022 23:52:47 -0500, Aruna Hewapathirane said:
> *** Compiler is too old.
>
> What would be the sanest way to do this? Meaning upgrade gcc and friends ?
Well... the answer to the posed question is, of course, "install gcc 5.1 or
later"
(and even *that* is pretty damned ancient -
On Tue, 15 Feb 2022 21:00:33 +0530, Ankit Pandey said:
> I will be glad if someone can give me pointers for a good starting point to
> contribute.
Some guy wrote this a while back, and it's still mostly relevant.
https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
On Tue, 08 Feb 2022 23:26:54 +0530, Ankit Pandey said:
> And I was asked to verify if there is some specific meaning is attached to
> comment here (which was causing the issue).
> I would be glad you could explain me how should I approach this issue? One
> way would
> be to rewrite that these
On Tue, 08 Feb 2022 08:03:56 +0300, David Kahurani said:
> I figured I could use kdump to save the dmesg logs but it doesn't seem to
> work with later kernels.
kdump is probably overkill for just saving dmesg. If you're booting x86_64
in UEFI mode, using pstore to save the dmesg is probably a
On Tue, 07 Dec 2021 13:03:07 +0530, Muni Sekhar said:
> Which module is responsible for resulting in the absolute time? Is
> absolute time synchronized across multiple systems connected on the
> network?
man -k ntp
Keeping the system clock in sync with external timesources and reality is too
On Wed, 10 Nov 2021 23:38:11 +0500, Mushahid Hussain said:
> I have successfully done so. I can see the Hello World printed to UART by
> two different binaries. What I cannot do is to jump from a binary(let's
> call it a simple hypervisor, which prints Hello World) at EL2 to the
> standard linux
On Sun, 07 Nov 2021 18:16:55 -0600, Drew Abbott said:
> You mentioned that this shouldn't be called in an irq context, but the
> unplug event is detected with an irq. Where should I be calling
> kernel_power_off() if not in the irq context? I think one way of doing this
> would be to set a value
On Tue, 02 Nov 2021 17:13:16 +0500, Mushahid Hussain said:
> I have written a simple kernel which prints Hello World to UART. The simple
> kernel works successfully and prints Hello World to UART, if I load it at
> 0x8, which is the default load address for the 64-bit kernel.
>
> There's a
On Mon, 18 Oct 2021 16:41:14 +0800, Dongliang Mu said:
> I want to log all the executed instructions of a user process (e.g.,
> poc.c in syzkaller) in the kernel mode and then would like to leverage
> backward analysis to capture the root cause of kernel panic/crash.
> Therefore, I need the
On Wed, 29 Sep 2021 11:07:15 -0400, Ruben Safir said:
> > such that when the patch(set) is finally accepted by the Linux
> > community and Linus Torvalds ultimately, you can write a paper about
> > it.
> They are not writing a paper for Linus. They are writing it for their
> dean or mentor.
On
> On Fri, 24 Sep 2021 18:08:01 -0600, jim.cro...@gmail.com said:
>
> > grumble/
> > ive often wanted lsmod -b to tell me that list. or something like that.
> > maybe a different rc
>
> See CONFIG_ICONFIG and friends in init/Kconfig
>
> That will give you not just the module list, but the entire
On Fri, 24 Sep 2021 18:08:01 -0600, jim.cro...@gmail.com said:
> grumble/
> ive often wanted lsmod -b to tell me that list. or something like that.
> maybe a different rc
See CONFIG_ICONFIG and friends in init/Kconfig
That will give you not just the module list, but the entire .config the
On Fri, 24 Sep 2021 19:34:59 +0530, Muni Sekhar said:
> What small projects would you suggest to a novice with the ALSA
> kernel. The aim is to develop a familiarity with the ALSA kernel
> source code, and also to submit it for academic purposes.
A good place to start is getting a good handle on
On Thu, 23 Sep 2021 18:39:22 +0200, Leon Gross said:
> If got more of a general question: Is there a way to list all the
> standard kernel modules that are included in a specific kernel version?
> And I don't meant the currently running modules I could get via lsmod
> but I mean all the modules
On Wed, 22 Sep 2021 22:07:28 -0400, Ruben Safir said:
> Aside from that, I really just want to know what efi varriables exist
On Thu, 23 Sep 2021 00:01:20 -0400, Ruben Safir said:
> What is all this garbage?
>
> ~$ sudo ls /sys/firmware/efi/efivars/ |wc
> 211 211 11511
Put the keyboard
On Wed, 22 Sep 2021 11:58:55 -0400, Ruben Safir said:
> OS's shouldn't need anything from a boot loader. That ties the OS to
> the bootloader completely without need.
You might want to read Documentation/x86/boot.rst and think about what the OS
is expecting to get passed from the boot loader,
On Fri, 17 Sep 2021 11:12:45 +0200, FMDF said:
> My question is: why "This patch is preparation for _io_ops [future]
> structure removal." is good while "Eventually this function will be
> deleted but some of the code will be reused later." is not.
The first is specific about what is being
On Tue, 14 Sep 2021 09:32:33 -0600, jim.cro...@gmail.com said:
> Im getting what appears to be conflicting warnings
> about %u vs unsigned int (sometimes unsigned long int)
> depending upon platform ??
Hint: What size is a size_t on a 32 bit platform, and on a 64 bit platform?
On Wed, 08 Sep 2021 12:02:39 +0200, Omar Mustafa said:
> The driver is RTL8822BE Bluetooth
That's not what I asked for. And that's not the *driver*, that's
the *device*.
For example, this laptop has an Ethernet and a wireless card:
[~] lspci -nn |grep -i net
01:00.0 Ethernet controller [0200]:
On Wed, 08 Sep 2021 07:46:13 +0200, Omar Mustafa said:
> Okay my kernel is 5.13.9-generic and I have tried what you mentioned but
> failed
> the only remaining solution I can think of is trying to install the Windows
> driver through NDISWrapper and itâs the RTL8822BE Bluetooth not the WiFi
On Tue, 07 Sep 2021 18:06:26 +0200, Omar Mustafa said:
> Itâs the RTL8822BE Bluetooth which I have tried each and every solution
> online ever existed and failed
Looks like the PCI card variant has been supported for a while:
[/usr/src/linux-next] git blame
On Fri, 03 Sep 2021 13:00:55 +0200, "Thomas Schmitt" said:
> I could offer bugs of isofs with explanations and patch proposals:
>
> - isofs: prevent file time rollover after year 2038
> Change the return type of function iso_date() from int to time64_t.
The tricky part is, of course, that for
On Sun, 29 Aug 2021 12:39:28 +0300, Adverg Ebashinskii said:
> Hi Anatoly,
> Thank you very much for your response. https://bugzilla.kernel.org looks
> exactly what I was looking for.
Note that the Bugzilla probably *isn't* what you're looking for, if you're
looking for small easy patches to
On Wed, 25 Aug 2021 22:21:44 -0700, daniel watson said:
> let me know if this is the right place to ask.
>
> i recently tried to make a commit adding parentheses around a macro
> value.
>
> https://lore.kernel.org/linux-staging/20210817043038.ga9...@challenge-bot.com/
>
> it was rejected as "This
On Sat, 21 Aug 2021 16:19:31 -0700, daniel watson said:
> On Sat, Aug 21, 2021 at 12:30:27AM -0700, daniel watson wrote:
> > Documentation/process/submitting-patches.rst says to see the T: entry
> > for the subsystem in MAINTAINERS to find the right tree to base the
> > patch on.
If there's no
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 append a correct "root=" boot option; here are the available
> partitions:
On Thu, 12 Aug 2021 11:45:45 +0200, "Fabio M. De Francesco" said:
> I've heard that your book, LDD 3rd edition, has become obsolete a long time
> ago and most sample code cannot anymore build. Reading what you wrote above
> seems to contradict what I've been told by others... I must admit that
On Thu, 29 Jul 2021 12:57:03 -, Jorge Fernandez Monteagudo said:
> Event: time 1627381396.770902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value
> 35023100
> Event: time 1627381396.770902, -- SYN_REPORT
> Event: time 1627381396.780891, type 4 (EV_MSC), code 5
On Wed, 28 Jul 2021 20:53:39 -0500, Ian Pilcher said:
> * New file - include/linux/blk-ledtrig.h
>
> Signed-off-by: Ian Pilcher
> ---
> block/blk-ledtrig.c | 152
> include/linux/blk-ledtrig.h | 19 +
> 2 files changed, 171 insertions(+)
>
On Wed, 28 Jul 2021 20:53:38 -0500, Ian Pilcher said:
> * New config option (CONFIG_BLK_LED_TRIGGERS) to enable/disable
> block device LED triggers
>
> * New file - block/blk-ledtrig.c
Is this bisect-clean (as in "will it build properly with that config option
set after each of the succeeding
On Wed, 28 Jul 2021 20:53:37 -0500, Ian Pilcher said:
> +Create a new block device LED trigger::
> +
> + # echo foo > /sys/class/block/led_trigger_new
> +
> +The name must be unique among all LED triggers (not just block device LED
> +triggers).
> +
> +Create two more::
> +
> + # echo bar
On Sun, 25 Jul 2021 13:07:21 -0500, Ian Pilcher said:
> Is there any sort of convention around what to return in the case of an
> error in the logic of the code itself, something that will make it as
> obvious as possible that the problem is a bug.
In general, there's no good way to signal such
On Sat, 10 Jul 2021 11:22:59 -, Anton Baltser said:
> I'm trying to get involved into Kernel Devolopment and confused about where I
> can take the first task to complete.
There's always low-hanging fruit in drivers/staging. The various drivers there
*should* have a TODO. And of course
On Thu, 08 Jul 2021 11:49:46 -0600, jim.cro...@gmail.com said:
> On Sun, Jul 4, 2021 at 9:36 AM Valdis KlÄtnieks
> wrote:
> > > smtpEncryption = ssl
> > > smtpServer = smtp.gmail.com
> > > smtpUser = my-email-addr...@gmail.com
> > > smtpServerPort = 465
> I have tls, and port = 587, and an
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 = my-email-addr...@gmail.com
> smtpServerPort = 465
Try 'smtpEncryption = tls' instead.
On Fri, 25 Jun 2021 16:05:45 -0400, Aruna Hewapathirane said:
> Jun 25 10:46:42 debian systemd-modules-load[201]: Failed to find module
> 'vmhgfs'
> Jun 25 10:46:42 debian systemd[1]: Failed to start Load Kernel Modules.
> Jun 25 10:46:42 debian systemd[1]: Unit systemd-modules-load.service
On Thu, 24 Jun 2021 19:36:08 -0400, Aruna Hewapathirane said:
> but after selecting the new kernel at the GRUB2 menu it hangs at the graphical
> login and I am stumped.
Does control-alt-F2, -F3, -F4 get you line mode consoles? If so, you
should be able to login, and get dmesg, the X server log,
On Thu, 24 Jun 2021 14:19:04 -0400, Aruna Hewapathirane said:
> Could well be ... but 'locate' shows me this:
>
> aruna@debian:~$ locate Makefile.normal
> /usr/src/open-vm-tools-9.4.6/vmci/Makefile.normal
> /var/lib/dkms/open-vm-tools/9.4.6/build/vmci/Makefile.normal
Note that 'locate' doesn't
On Sat, 12 Jun 2021 16:45:00 +0530, Muni Sekhar said:
> > And if it's configurable for multiple formats, was it set for the correct
> > one?
> Is there a way to verify was it set for the correct one or not?
arecord -v gives what it thinks the setup is.
> > Does the record die immediately, or
On Mon, 14 Jun 2021 20:40:57 +0530, hemanth nandish said:
> As per my understanding, the *do_coredump* kills the faulty process inside
> *coredump_wait* function before invoking the userspace handler,
> This might be the reason the libunwind fails to gather the backtrace as it
> uses PTRACE
On Tue, 08 Jun 2021 16:20:07 +0530, Muni Sekhar said:
> $ arecord --device hw:1,0 --channels 1 --format S16_LE --rate 32000_Hz x.wav
> Recording WAVE 'x.wav' : Signed 16 bit Little Endian, Rate 32000 Hz, Mono
> arecord: pcm_read:2032: read error: Input/output error
Always check the obvious stuff
On Tue, 18 May 2021 08:53:58 +0900, Hyeonggon Yoo said:
> I recently was tracking syzbot report that is occured in
> sound driver. I don't have the device, but was curious about
> what the test method is.
Depends what the bug was.
> well, build tests are useful but it is not enough, we should
On Sun, 09 May 2021 08:40:56 +0200, lo�c tourlonias said:
> related to our architecture. We are working on a ARM Cortex-A7 which
> have an isolation between a normal world and a secure world. Linux is
> working on the normal world for the UI and FreeRTOS is running on the
> secure world.
Is
On Tue, 04 May 2021 12:17:56 -0400, "Valdis KlD tnieks" said:
> void __exit timer_exit(void) {
> exiting = 1;
-ENOCAFFEINE
That still needs a few memory barriers. See Documentation/memory_barriers.txt
for the gory details.
pgp_TgzDbFoJ9.pgp
Description: PGP signature
On Tue, 04 May 2021 23:59:12 +0900, Hyeonggon Yoo said:
> Does del_timer work well for timers that re-registers itself?
> what if the timer is currently running, and del_timer is called,
> and the running timer re-registers itself?
Minor nit: while the timer is running, there's no problem.
When
On Mon, 03 May 2021 00:56:17 +0900, Hyeonggon Yoo said:
> I mean, is there an API that guarantees high precision (non architecture
> dependent way)
How do you guarantee high precision if you're on hardware that doesn't
provide a high precision/resolution timer?
pgpdtBPU6HIVO.pgp
Description:
On Tue, 27 Apr 2021 07:26:27 +0300, Leon Romanovsky said:
> On Mon, Apr 26, 2021 at 11:20:32PM +0530, bkkarthik wrote:
> > These were only intended for a clean-up job, the idea of this function came
> > from how PCI handles procfs.
> > Maybe those should be changed?
>
> Probably, the
On Sun, 25 Apr 2021 01:13:01 +0530, Anupama K Patil said:
> Changed sprintf() to the kernel-space function scnprintf() as it returns
> the actual number of bytes written.
> + if (!bus->procdir) {
> + scnprintf(name, 16, "%02x", bus->number);
> + scnprintf(name, 16, "%02x",
On Sat, 24 Apr 2021 01:36:13 -0400, HerbalNekoTea said:
> Hi, i have kinda found a method a couple years ago to import the Japanese
> Shift-JIS encoding from Fedora/CentOS/RHEL/OpenSuse to any other
> distribution and i keep forgetting to maintain the sideloading method when
> the kernel update
On Fri, 23 Apr 2021 15:45:54 +0900, JeongHwan Kim said:
> I'm testing packet flooding test with old kernel version 2.6.30.
[/usr/src/linux-next] git show v2.6.30 | grep Date
Date: Tue Jun 9 20:05:37 2009 -0700
[/usr/src/linux-next] git diff --shortstat v2.6.30..HEAD
82911 files changed,
On Tue, 20 Apr 2021 19:56:23 -, Esme Xuan Lim said:
> I was wondering since there�s loads of useful stuff in there it seems, but
> there's little documented on what goodies there are or what they do
Most of them are used by the build process, and are named reasonably
self-descriptively, so
On Fri, 09 Apr 2021 08:06:21 -0700, Andi Kleen said:
> Thinking more about it what I wrote above wasn't quite right. The cache
> would only need to be as big as the number of attackable services/suid
> binaries. Presumably on many production systems that's rather small,
> so a cache (which
On Wed, 07 Apr 2021 19:51:51 +0200, John Wood said:
> When brute detects a brute force attack through the fork system call
> (killing p3) it will mark the binary file executed by p3 as "not allowed".
> From now on, any execve that try to run this binary will fail. This way it
> is not necessary
On Mon, 05 Apr 2021 09:31:47 +0200, John Wood said:
> > And how does the kernel know that it's notifying a "real" supervisor
> > process,
> > and not a process started by the bad guy, who can receive the notification
> > and decide to respawn?
> >
> Well, I think this is not possible to know.
On Sun, 04 Apr 2021 11:48:37 +0200, John Wood said:
> that exec and the child crashes is mitigated. The only drawback here, as
> point Andi, is that a supervisor respawns some process killed. To avoid
> this situation he suggest to notify to usersapace via wait* that the
> task has been killed by
On Sat, 03 Apr 2021 09:02:26 +0200, John Wood said:
> Currently, the scenario you propose is fully mitigated :). And notifying to
> userspace that all the tasks has been killed by "Brute" not decrease the
> security. It adds the possibility that the supervisor adopts the correct
> policy.
So
On Fri, 02 Apr 2021 14:49:32 +0200, John Wood said:
> the attack can be started again. So, he suggested that notifying to userspace
> (via wait*() functions) that a child task has been killed by the "Brute" LSM,
> the supervisor can adopt the correct policy and avoid respawn the killed
>
On Thu, 01 Apr 2021 20:20:04 +0530, Navin P said:
> After printing the task->start_boottime as 53rd field, i found
> multiple process containing same value due to a race. The race exists
> for p->start_time as well.
Well, yeah. There's no existing reason that the kernel shouldn't be able to
On Tue, 30 Mar 2021 19:34:59 +0200, John Wood said:
> The question is: How can I notify to wait* functions that the task has
> been killed by the "Brute" LSM.
What wait* functions even *care* that your LSM was what killed it?
If you're caring about somehow notifying userspace that it was your
On Wed, 24 Mar 2021 14:58:05 +0200, you said:
> What kind of changes in the kernel require testing with valid signatures ?
Pretty much only changes that affect module signing.
If your threat model doesn't include "hacker sticks rogue module on
your box and gets it loaded to install backdoor",
On Wed, 24 Mar 2021 09:21:31 -0400, Aruna Hewapathirane said:
> > And all of that has to fit in 8K of stack. That's why we warn when things
> > have
> > a large stack frame entry.
> I still don't understand why the 8K barrier ? Why can't we make it say 16K ?
The issue is that then you need 4
On Tue, 23 Mar 2021 22:36:33 -0400, Aruna Hewapathirane said:
> I also see:
> CC drivers/cpufreq/cpufreq_ondemand.o
> drivers/cpufreq/cpufreq_ondemand.c: In function âod_set_powersave_biasâ:
> drivers/cpufreq/cpufreq_ondemand.c:446:1: warning: the frame size of 1032
> bytes is larger
On Tue, 23 Mar 2021 18:36:58 +0200, Gidi Gal said:
> knowledge on this subject), I am now facing "invalid signature" error when
> I reboot with my installed dev kernel.
When/where exactly are you getting that error? There's three major
places where things can go wrong:
1) If you're using secure
On Tue, 23 Mar 2021 00:29:10 -0400, Aruna Hewapathirane said:
> Use : linux-check-removal
That's a debian-specific thing...
> > Seriously - if you're not comfortable with that level of sysadmin
> > procedures,
> > maybe you shouldn't be a kernel hacker...
>
>
> Do not listen to Valdis in this
On Tue, 23 Mar 2021 16:37:13 +0200, you said:
> I gave up for now and prepared bash script for removing the files, based on
> the information in
> https://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/
> (see "A note about custom compiled Linux kernel" section). In my opinion,
>
On Tue, 23 Mar 2021 00:01:22 +0200, Gidi Gal said:
> Many thanks for your reply, Aruna. Is there a way to remove the installed
> '5.12.0-rc3-GIDI_DEV+' kernel ? A reverse command for the 'sudo make
> modules_install install' command ? I found this link which explains how to
> do it manually (
>
On Mon, 22 Mar 2021 14:11:58 +0200, Gidi Gal said:
> I am new to kernel development, currently working on
> https://kernelnewbies.org/FirstKernelPatch. I reached the step "Install
> your changes" in "Modifying a driver on native Linux". I would like to
> separate my developed kernel and my
On Sun, 21 Mar 2021 12:03:36 -0400, Harsha Vardhan said:
> So far I have spent a lot of time dreaming to be a kernel hacker without
> doing much ,
1) What Greg said.. :)
2) Go read this:
https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
And yes, *why* you want to
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 module load_info, giving me
> the base I will need for the ! builtin
On Wed, 10 Feb 2021 10:10:21 +0530, Abhijit Paul said:
> Hello, I am new to kernel development. As a beginner, I don't know which
> part I will work on. Can anyone suggest me what I do as a beginner?
https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
Read that, think
On Mon, 08 Feb 2021 09:00:27 -0500, Evan T Mesterhazy said:
> Thanks, Greg - good suggestion regarding `git bisect`. I was able to narrow
> it down to a change between 5.8 and 5.9, so maybe that's the next logical
> thing to do. None of the config options added between those releases seemed
>
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?
> KBUILD_MODNAME has the quotes for a reason;
Hint: do a "git grep KBUILD_MODNAME",
On Tue, 26 Jan 2021 23:07:24 +0530, Mohana Datta Yelugoti said:
> Hello everyone,
>
> I am going through Documentation/filesystems/sysfs.rst.
>
> It says that sysfs allocates a buffer of size PAGE_SIZE and
> passes it to the show/store functions of the attribute. On
> read(), the show() method
On Tue, 26 Jan 2021 14:24:13 +0100, Dario Pagani said:
> What am I doing wrong?
> --- a/drivers/hid/Makefile
> +++ b/drivers/hid/Makefile
> @@ -112,6 +112,7 @@ obj-$(CONFIG_HID_STEELSERIES) += hid-steelseries.o
> obj-$(CONFIG_HID_SUNPLUS)+= hid-sunplus.o
> obj-$(CONFIG_HID_GREENASIA)
On Tue, 19 Jan 2021 07:38:13 +, "Pankaj Vinodrao Joshi" said:
> i agree each processor type exports different information but i need to pop
> up information while i do /proc/cpu also i have observed that almost every
> arch
> display information w.r.t frequency. Can you suggest how i can add
On Fri, 15 Jan 2021 08:16:21 +0800, "âªbigbird2...@163.comâ¬" said:
> Thank you, I'll just look at one list, in order to learn. Which list is
> suitable for getting started?
That will in very large part depend on why you're interested in the kernel. If
you're trying to get a weird USB widget
On Thu, 14 Jan 2021 09:00:29 +0200, Alexander Kapshuk said:
> On Thu, Jan 14, 2021 at 8:14 AM bigbird2...@163.com
> wrote:
> > I've just added a newbies mailing list, How to join other mailing lists,
> > and I'd like to see what other people are communicating with.
> Not sure what other lists
On Sun, 20 Dec 2020 12:47:08 +0100, John Wood said:
> disable interrupts. Then, the task_free hook was call from an IRQ context
> and tried to acquire the same lock in a write state.
OK, I'll bite.
Why was task_free called from an IRQ context in the first place? That sounds
awfully fishy.
On Tue, 08 Dec 2020 11:35:57 +0100, John Wood said:
> I think the stats pointer present in the task_struct's security blob
> needs to be protected against concurrency for the following reasons.
>
> 1.- The same process forking at the same time in two different CPUs.
> 2.- The same process execve()
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