* Disable EISA and probes @ 2020-09-05 2:57 Jeffrey Walton 2020-09-05 6:15 ` Greg KH 0 siblings, 1 reply; 8+ messages in thread From: Jeffrey Walton @ 2020-09-05 2:57 UTC (permalink / raw) To: kernelnewbies Hi Everyone, I would like to disable EISA and its probes during boot. I found the docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, but it does not discuss how to disable EISA or the probes. I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, where folks are wondering why EISA is enabled by default nowadays. And one person asks about a kernel option to disable it (like I am doing). I'd like to add a boot param like eisa=0 or eisa=off, but I suspect it's not that easy. Looking at the three documented kernel parameters, they all enable EISA and probes. How do I disable EISA and the probes? Thanks in advance. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 2:57 Disable EISA and probes Jeffrey Walton @ 2020-09-05 6:15 ` Greg KH 2020-09-05 11:31 ` Jeffrey Walton 0 siblings, 1 reply; 8+ messages in thread From: Greg KH @ 2020-09-05 6:15 UTC (permalink / raw) To: Jeffrey Walton; +Cc: kernelnewbies On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > Hi Everyone, > > I would like to disable EISA and its probes during boot. I found the > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > but it does not discuss how to disable EISA or the probes. > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > where folks are wondering why EISA is enabled by default nowadays. And > one person asks about a kernel option to disable it (like I am doing). > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > it's not that easy. Looking at the three documented kernel parameters, > they all enable EISA and probes. > > How do I disable EISA and the probes? Build a kernel without EISA in it at all? That's the simplest way as you must have some custom hardware that doesn't like this, so a custom-configuration seems like the best option. Did you try that and it did not work? What is the problem of EISA at boot anyway? thanks, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 6:15 ` Greg KH @ 2020-09-05 11:31 ` Jeffrey Walton 2020-09-05 11:37 ` Greg KH 0 siblings, 1 reply; 8+ messages in thread From: Jeffrey Walton @ 2020-09-05 11:31 UTC (permalink / raw) To: kernelnewbies On Sat, Sep 5, 2020 at 2:15 AM Greg KH <greg@kroah.com> wrote: > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > > Hi Everyone, > > > > I would like to disable EISA and its probes during boot. I found the > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > but it does not discuss how to disable EISA or the probes. > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > where folks are wondering why EISA is enabled by default nowadays. And > > one person asks about a kernel option to disable it (like I am doing). > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > it's not that easy. Looking at the three documented kernel parameters, > > they all enable EISA and probes. > > > > How do I disable EISA and the probes? > > Build a kernel without EISA in it at all? That's the simplest way as > you must have some custom hardware that doesn't like this, so a > custom-configuration seems like the best option. Nothing custom. I just have modern hardware. What's the purpose of including EISA by default? It has not been used in 25 years. > Did you try that and it did not work? What is the problem of EISA at > boot anyway? No, I did not build a custom kernel. I was looking for kernel options to disable it. The machine is part of a distro. Jeff _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 11:31 ` Jeffrey Walton @ 2020-09-05 11:37 ` Greg KH 2020-09-05 13:17 ` Jeffrey Walton 0 siblings, 1 reply; 8+ messages in thread From: Greg KH @ 2020-09-05 11:37 UTC (permalink / raw) To: Jeffrey Walton; +Cc: kernelnewbies On Sat, Sep 05, 2020 at 07:31:13AM -0400, Jeffrey Walton wrote: > On Sat, Sep 5, 2020 at 2:15 AM Greg KH <greg@kroah.com> wrote: > > > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > > > Hi Everyone, > > > > > > I would like to disable EISA and its probes during boot. I found the > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > > but it does not discuss how to disable EISA or the probes. > > > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > > where folks are wondering why EISA is enabled by default nowadays. And > > > one person asks about a kernel option to disable it (like I am doing). > > > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > > it's not that easy. Looking at the three documented kernel parameters, > > > they all enable EISA and probes. > > > > > > How do I disable EISA and the probes? > > > > Build a kernel without EISA in it at all? That's the simplest way as > > you must have some custom hardware that doesn't like this, so a > > custom-configuration seems like the best option. > > Nothing custom. I just have modern hardware. > > What's the purpose of including EISA by default? It has not been used > in 25 years. distro kernels have to support everything. The kernel should still just work just fine with it enabled but not present, right? > > Did you try that and it did not work? What is the problem of EISA at > > boot anyway? > > No, I did not build a custom kernel. I was looking for kernel options > to disable it. Again, why? What is breaking because it is enabled in your kernel? thanks, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 11:37 ` Greg KH @ 2020-09-05 13:17 ` Jeffrey Walton 2020-09-05 14:52 ` Greg KH 0 siblings, 1 reply; 8+ messages in thread From: Jeffrey Walton @ 2020-09-05 13:17 UTC (permalink / raw) To: kernelnewbies On Sat, Sep 5, 2020 at 7:37 AM Greg KH <greg@kroah.com> wrote: > > On Sat, Sep 05, 2020 at 07:31:13AM -0400, Jeffrey Walton wrote: > > On Sat, Sep 5, 2020 at 2:15 AM Greg KH <greg@kroah.com> wrote: > > > > > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > > > > Hi Everyone, > > > > > > > > I would like to disable EISA and its probes during boot. I found the > > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > > > but it does not discuss how to disable EISA or the probes. > > > > > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > > > where folks are wondering why EISA is enabled by default nowadays. And > > > > one person asks about a kernel option to disable it (like I am doing). > > > > > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > > > it's not that easy. Looking at the three documented kernel parameters, > > > > they all enable EISA and probes. > > > > > > > > How do I disable EISA and the probes? > > > > > > Build a kernel without EISA in it at all? That's the simplest way as > > > you must have some custom hardware that doesn't like this, so a > > > custom-configuration seems like the best option. > > > > Nothing custom. I just have modern hardware. > > > > What's the purpose of including EISA by default? It has not been used > > in 25 years. > > distro kernels have to support everything. The kernel should still just > work just fine with it enabled but not present, right? Modern distros and their minimum requirements preclude EISA. One cannot meet a distros minimum requirements and have EISA. > > > Did you try that and it did not work? What is the problem of EISA at > > > boot anyway? > > > > No, I did not build a custom kernel. I was looking for kernel options > > to disable it. > > Again, why? What is breaking because it is enabled in your kernel? Why do you assume something is broke? Jeff _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 13:17 ` Jeffrey Walton @ 2020-09-05 14:52 ` Greg KH 2020-09-05 15:11 ` Jeffrey Walton 0 siblings, 1 reply; 8+ messages in thread From: Greg KH @ 2020-09-05 14:52 UTC (permalink / raw) To: Jeffrey Walton; +Cc: kernelnewbies On Sat, Sep 05, 2020 at 09:17:43AM -0400, Jeffrey Walton wrote: > On Sat, Sep 5, 2020 at 7:37 AM Greg KH <greg@kroah.com> wrote: > > > > On Sat, Sep 05, 2020 at 07:31:13AM -0400, Jeffrey Walton wrote: > > > On Sat, Sep 5, 2020 at 2:15 AM Greg KH <greg@kroah.com> wrote: > > > > > > > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > > > > > Hi Everyone, > > > > > > > > > > I would like to disable EISA and its probes during boot. I found the > > > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > > > > but it does not discuss how to disable EISA or the probes. > > > > > > > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > > > > where folks are wondering why EISA is enabled by default nowadays. And > > > > > one person asks about a kernel option to disable it (like I am doing). > > > > > > > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > > > > it's not that easy. Looking at the three documented kernel parameters, > > > > > they all enable EISA and probes. > > > > > > > > > > How do I disable EISA and the probes? > > > > > > > > Build a kernel without EISA in it at all? That's the simplest way as > > > > you must have some custom hardware that doesn't like this, so a > > > > custom-configuration seems like the best option. > > > > > > Nothing custom. I just have modern hardware. > > > > > > What's the purpose of including EISA by default? It has not been used > > > in 25 years. > > > > distro kernels have to support everything. The kernel should still just > > work just fine with it enabled but not present, right? > > Modern distros and their minimum requirements preclude EISA. One > cannot meet a distros minimum requirements and have EISA. Then file a bug with your distro to have it removed from their kernel images. > > > > Did you try that and it did not work? What is the problem of EISA at > > > > boot anyway? > > > > > > No, I did not build a custom kernel. I was looking for kernel options > > > to disable it. > > > > Again, why? What is breaking because it is enabled in your kernel? > > Why do you assume something is broke? Why would you want to disable it? It's not running on your system, so how can it affect you? greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 14:52 ` Greg KH @ 2020-09-05 15:11 ` Jeffrey Walton 2020-09-05 20:25 ` Valdis Klētnieks 0 siblings, 1 reply; 8+ messages in thread From: Jeffrey Walton @ 2020-09-05 15:11 UTC (permalink / raw) To: Greg KH; +Cc: kernelnewbies On Sat, Sep 5, 2020 at 10:52 AM Greg KH <greg@kroah.com> wrote: > > ... > > > > > > I would like to disable EISA and its probes during boot. I found the > > > > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > > > > > but it does not discuss how to disable EISA or the probes. > > > > > > > > > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > > > > > where folks are wondering why EISA is enabled by default nowadays. And > > > > > > one person asks about a kernel option to disable it (like I am doing). > > > > > > > > > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > > > > > it's not that easy. Looking at the three documented kernel parameters, > > > > > > they all enable EISA and probes. > > > > > > > > > > > > How do I disable EISA and the probes? > > > > > > > > > > Build a kernel without EISA in it at all? That's the simplest way as > > > > > you must have some custom hardware that doesn't like this, so a > > > > > custom-configuration seems like the best option. > > > > > > > > Nothing custom. I just have modern hardware. > > > > > > > > What's the purpose of including EISA by default? It has not been used > > > > in 25 years. > > > > > > distro kernels have to support everything. The kernel should still just > > > work just fine with it enabled but not present, right? > > > > Modern distros and their minimum requirements preclude EISA. One > > cannot meet a distros minimum requirements and have EISA. > > Then file a bug with your distro to have it removed from their kernel > images. Thanks. So does that mean it is not possible to disable EISA and its probes? Jeff _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Disable EISA and probes 2020-09-05 15:11 ` Jeffrey Walton @ 2020-09-05 20:25 ` Valdis Klētnieks 0 siblings, 0 replies; 8+ messages in thread From: Valdis Klētnieks @ 2020-09-05 20:25 UTC (permalink / raw) To: noloader; +Cc: Greg KH, kernelnewbies [-- Attachment #1.1: Type: text/plain, Size: 1200 bytes --] On Sat, 05 Sep 2020 11:11:27 -0400, Jeffrey Walton said: > On Sat, Sep 5, 2020 at 10:52 AM Greg KH <greg@kroah.com> wrote: > > > Modern distros and their minimum requirements preclude EISA. One > > > cannot meet a distros minimum requirements and have EISA. > > > > Then file a bug with your distro to have it removed from their kernel > > images. > > Thanks. > > So does that mean it is not possible to disable EISA and its probes? 16:18:21 0 [~] uname -a Linux turing-police 5.9.0-rc2-next-20200827-dirty #779 SMP Sun Aug 30 04:22:57 EDT 2020 x86_64 x86_64 x86_64 GNU/Linux 16:19:38 0 [~] grep EISA /boot/config-`uname -r` CONFIG_HAVE_EISA=y # CONFIG_EISA is not set 16:19:55 0 [~] It's possible, because I'm positive this laptop isn't about to suddenly sprout an EISA bus that needs supporting. (That, and it's fun to watch a kernel build blow up because I have an oddball .config for the build :) Convincing a distro to remove it is a different question. And I'm sure they won't be interested in doing so unless you can prove "can't meet minimum requirements and have EISA". Can you name-and-shame some distros, and point at a minimum requirement that can't be met by a box that has EISA? [-- Attachment #1.2: Type: application/pgp-signature, Size: 832 bytes --] [-- Attachment #2: Type: text/plain, Size: 170 bytes --] _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-09-05 20:26 UTC | newest] Thread overview: 8+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2020-09-05 2:57 Disable EISA and probes Jeffrey Walton 2020-09-05 6:15 ` Greg KH 2020-09-05 11:31 ` Jeffrey Walton 2020-09-05 11:37 ` Greg KH 2020-09-05 13:17 ` Jeffrey Walton 2020-09-05 14:52 ` Greg KH 2020-09-05 15:11 ` Jeffrey Walton 2020-09-05 20:25 ` Valdis Klētnieks
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