IRC channel logs

<AlmuHS>hi

<AlmuHS>reading the history, I noticed that some person from my spanish tg group about Hurd was talking here some days ago :-)

<AlmuHS>damo22: do you need help with your Thinkpads? ;)

<damo22>hi

<damo22>AlmuHS: i dont have very many currently, but i am collecting them

<AlmuHS>in T410, Hurd runs fine

<AlmuHS>even better than T60

<damo22>mainly sandy bridge and ivy bridge thinkpads

<damo22>because they run with coreboot

<damo22>and ME can be mostly removed

<AlmuHS>coreboot is a TODO for me

<AlmuHS>it required a difficult process to flash

<damo22>i know, sorry about that

<AlmuHS>so I have not installed yet

<AlmuHS>but, even with the default BIOS, Hurd seems to works well

<damo22>unfortunately the SPI chipset comes locked down from the vendor and we havent figured out how to unlock in software yet

<AlmuHS>in fact, i had some problems with the shutdown

<AlmuHS>in T410, the ACPI shutdown crash in a infinite loop

<damo22>yes, there are various issues

<damo22>oh i know why that is

<damo22>the ACPI is assuming the power off sequence is one of two values

<AlmuHS>in T60 and R60e, the shutdown works, but the system enter in a strange status, and when i try to turn on again the screen keeps in black

<damo22>but it needs to parse it properly

<damo22>so needs acpica code

<AlmuHS>could be possible to implement acpica as a Hurd server?

<damo22>currently hurd's ACPI only works with qemu for now

<damo22>yes

<damo22>that is on my todo list

<AlmuHS>btw, my SMP code for APIC is ready. Now you can implement APIC timer and IOAPIC

<damo22>yes i got your email but im not sure when i will have time to do it all

<damo22>AlmuHS: is that your group planning to teach people how to live in self-sustainable society?

***Server sets mode: +nt

<AlmuHS>now I'm resting before continue my SMP work. These weeks were tiring

<damo22>AlmuHS: you have interesting projects

<damo22>:)

<AlmuHS>the next stage of SMP will be difficult

<damo22>i have a branch where i made lapic timer almost working

<damo22>but it was based on old code

<AlmuHS>yes, i remember it

<AlmuHS>the lapic timer can be useful to create a good delay() function

<AlmuHS>to synchronize the IPI sending properly

<damo22>i got a new thinkpad W520

<damo22>its a very nice model

<AlmuHS>yes

<AlmuHS>good model to test Hurd ;)

<damo22>yes, 8 threads and 24GB ram

<AlmuHS>WOW

<damo22>i can upgrade to 32

<AlmuHS>in my T410, I tested 6 GB RAM. But It seems that gnumach has not enabled PAE by default

<AlmuHS>so gnumach only detected less than 4 GiB

<damo22>yeah

<damo22>we need to get the x86_64 port going

<AlmuHS>but PAE might be detected more than 4 GB

<AlmuHS>*might detect

<AlmuHS>but I'm not sure about how to enable it

<damo22>im happy with 4GB for now in qemu

<damo22>for testing

<AlmuHS>yes, i never filled all the RAM

<AlmuHS>but it's a curious thing

<AlmuHS>other curiosity was testing my old SMP microkernel in the T410. I noticed that, after enable a cpu, the machine reboots

<damo22>switching PIC -> APIC will be a big step

<AlmuHS>maybe the T410 are using x2APIC, which has different structure in IRC field

<AlmuHS>i will try to force the using of xAPIC in all machines after detect the APIC

<AlmuHS>x2APIC makes not sense by now

<damo22>im still stuck on rump trying to install the boot driver as a translator

<damo22>but i think we fixed most of the bugs with pciaccess

<AlmuHS>may you need an intermediate code to communicate gnumach with the translator

<AlmuHS>because, in any case, the boot will starts in gnumach

<damo22>gnumach is not involved with rump disks

<damo22>except to pass messages

<AlmuHS>ok

<damo22>rump runs as a process in userspace

<AlmuHS>but, the boot driver must be the first before the rest of translators, is not?

<damo22>there is a special dance to pass the bootstrap port to the rump driver

<damo22>it is a static binary

<damo22>so it can load as a standalone driver

<damo22>just like ext2fs gets loaded

<AlmuHS>ok, i think that i don't have enough knowledge about this

<AlmuHS>with ext2fs I had a problem some months ago, related with Mach

<damo22>your freeze is solved i think

<AlmuHS>i configure the cpu0 as bound processor (stop the rest of processors and boot only with cpu 0). And, with this, ext2fs get freezed

<damo22>it was a long standing bug in the code

<AlmuHS>the ext2fs thread problem?

<damo22>i think it was related to something like PIE binary and offset 0

<AlmuHS>i remember that the problem was in a thread which was never assigned

<AlmuHS>maybe the problem was this, the PIE binary and offset 0

<damo22>oh ok

<AlmuHS>i don't know if we are talking about the same problem

<damo22>me too

<damo22>anyway, what time is it there

<damo22>you need sleep

<AlmuHS>1:55

<AlmuHS>today is hour change

<damo22>ZZZzzzz

<AlmuHS>yes, all my family is sleeping, XD

<damo22>ok

<damo22>im really enjoying this 1920x1080 screen

<damo22>i can use two terminals side by side and compare

<AlmuHS>I have a FHD IPS panel in my T440p, and it's great

<AlmuHS>the HD panel of my X230 seems a toy together this

<damo22>yeah

<damo22>x230 has 1366x768?

<AlmuHS>i think yes

<AlmuHS>and it's a TN panel, with a very poor color quality

<damo22>ok

<damo22>i bought another x230 really cheap

<damo22>i will fix it and add it to the collection

<AlmuHS>there are a mod to put a FHD panel in X230, but the cable is more expensive than the self machine, XD

<AlmuHS>i bought a very beautiful x220

<AlmuHS>really cheap, 66 €

<damo22>nice!

<damo22>x220 has problem with coreboot you need to limit cstates to have it not crash randomly

<damo22>but it doesnt happen very often

<AlmuHS>my x220 has a little problem turning on, and sometimes it's necessary press the button two times

<AlmuHS>but it's not a great problem

<damo22>oh you can put the factory bios back on and reflash the EC

<damo22>it should resolve your issue

<AlmuHS>i research about this

<damo22> https://github.com/hamishcoleman/thinkpad-ec

<damo22>this lets you unlock battery restrictions on x230

<AlmuHS>some days ago, i tried to install advanced bios. But the installation requires execute some scripts over windows

<AlmuHS>yes, I applied this last week over my X230

<damo22>nice

<damo22>you can generate USB key that will boot

<damo22>and fix the bios

<AlmuHS>the advanced bios allows to unlock many interesting characteristics, but It required windows for installing :(

<AlmuHS>yes, I installed Thinkpad EC in my X230 using a USB

<AlmuHS>but there are a more advanced BIOS than this

<damo22>yeah, you probably want coreboot eventually, and then it will unlock everything including the ability to reflash any bios internally

<AlmuHS> http://x220.mcdonnelltech.com/resources/

<AlmuHS>yes, but coreboot required a hardware flashing, and I am affraid about damage my machine

<AlmuHS>*requires

<AlmuHS>this is the other advanced bios http://x220.mcdonnelltech.com/bios/

<damo22>you can safely flash your x220 with a pomona clip and raspberry pi

<damo22>because the first step is to read the flash only, to save a backup for restore if everything goes wrong

<AlmuHS>a friend used a clip like this https://www.amazon.es/gp/product/B07SNTL5V6/?tag=homelabbers_es-21

<damo22>yep

<damo22>but i find the cheap clips dont stay on the chip very well

<damo22>because their spring is usually too strong

<AlmuHS>yes, other friend broken its BIOS chip with a cheap clip

<damo22> https://i.ebayimg.com/images/i/181541352406-0-1/s-l1000.jpg

<damo22>thats the best one

<AlmuHS>thanks

<AlmuHS>it's difficult to find it to purchase

<damo22>search pomona 5250

<AlmuHS>ok

<damo22>if you need to do x200, you probably need 16 pin SOIC

<damo22>pomona 5252 i tihnk

<AlmuHS>i need x220

<AlmuHS>and maybe T60

<AlmuHS> https://es.aliexpress.com/item/32394998027.html?spm=a2g0o.productlist.0.0.fff42de94FPQjF&algo_pvid=fa3fc0eb-9543-4b8f-a948-2a3933feeb37&algo_expid=fa3fc0eb-9543-4b8f-a948-2a3933feeb37-1&btsid=0bb0623216035849969055974eb7a0&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

<AlmuHS>oh, I think that It is https://es.aliexpress.com/item/32811055460.html

<damo22>it should be blue

<damo22>the real ones are blue

<damo22>not black

<damo22>watch out for fakes

<AlmuHS>yes, I'm checking

<AlmuHS> https://ie.farnell.com/pomona/5250/test-clip-8-pos-1-27mm-soj-soic/dp/2406243

<damo22>yep

<AlmuHS>ok, i will wait until this will be back in stock

<AlmuHS>now I go to sleep

<AlmuHS>bye, and thanks

<damo22>bye

***Server sets mode: +nt

***nly` is now known as nly

<rekado>you can also flash with Zerocat: http://www.zerocat.org/chipflasher.html

<rekado>that’s how I flashed libreboot onto my (now broken) X200S a few years ago

IRC channel logs

2020-10-25.log