Re: aarch64?
By: deon to Digital Man on Wed Oct 09 2024 05:40 pm

Curios to know your plans, if any, to update libmoz and/or enabling SBBS to be built on aarch64?

It's a huge change to SBBS to upgrade libmozjs, but it will happen. Sysops have built and run sbbs (and libmozjs) on aarch64 (e.g. for a 64-bit Linux on an rPi4) successfully, so it is possible to do it.
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Re: aarch64?
By: Digital Man to deon on Wed Oct 09 2024 12:07 pm

Howdy,

It's a huge change to SBBS to upgrade libmozjs, but it will happen. Sysops have built and run sbbs (and libmozjs) on aarch64 (e.g. for a 64-bit Linux on an rPi4) successfully, so it is possible to do it.

OK, keen to know who successfully runs an aarch64 build, and the instructions they used.

My build completed no problem, but soon as I start it, it core dumps.

(gdb) thread apply all bt

Thread 12 (Thread 0xffffd37fe1c0 (LWP 537) "sbbs/jsStatic"):
#0 futex_wait_cancelable (private=0, expected=0, futex_word=0xffffd800faa0) at ../sysdeps/nptl/futex-internal.h:186
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0xffffd800f910, cond=0xffffd800fa78) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0xffffd800fa78, mutex=0xffffd800f910) at pthread_cond_wait.c:638
#3 0x0000fffff64c6984 in PR_WaitCondVar () from /usr/lib/aarch64-linux-gnu/libnspr4.so
#4 0x0000fffff695c648 in ?? () from /usr/lib/libmozjs185.so.1.0
#5 0x0000ffffd3ffc418 in ?? ()
#6 0xf64cca1000000000 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 11 (Thread 0xfffff03a31c0 (LWP 536) "sbbs/jsRTtrig"):
#0 0x0000fffff6b68220 in __GI___clock_nanosleep (clock_id=<optimized out>, clock_id@entry=0, flags=flags@entry=0, req=0xfffff03a2980, rem=0xfffff03a2980) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1 0x0000fffff6b6db9c in __GI___nanosleep (requested_time=<optimized out>, remaining=<optimized out>) at nanosleep.c:27
#2 0x0000fffff6f0a750 in trigger_thread (args=0x0) at js_rtpool.c:24
#3 0x0000fffff6c45648 in start_thread (arg=0xfffff03a2ac0) at pthread_create.c:477
#4 0x0000fffff6b9bc9c in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 10 (Thread 0xffffd3fff1c0 (LWP 535) "sbbs/jsStatic"):
#0 0x0000fffff6987810 in js_GetClassPrototype(JSContext*, JSObject*, JSProtoKey, JSObject**, js::Class*) () from /usr/lib/libmozjs185.so.1.0
#1 0x0000fffff69543f4 in ?? () from /usr/lib/libmozjs185.so.1.0
#2 0x0000ffffd3ffc550 in ?? ()
Backtrace stopped: Cannot access memory at address 0xffffffff00000018

Does this describe anything useful that is fixable?


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Re: aarch64?
By: Digital Man to deon on Wed Oct 09 2024 02:44 pm

Does this describe anything useful that is fixable?

Not to me, but others maybe.

There are some arm64 specific instructions added by others to https://wiki.synchro.net/howto:raspbian_install

Yup, I used those instructions, and it doesnt work for me.

Well, it compiles, but core dumps when you run sbbs root@582e62f72f8f:/opt/sbbs# sbbs
...
10/10 11:07:59 mail SMTPS Submission Agent listening on socket :: port 465 10/10 11:07:59 mail POP3 Server listening on socket 0.0.0.0 port 110
10/10 11:07:59 mail POP3 Server listening on socket :: port 110
10/10 11:07:59 mail POP3S Server listening on socket 0.0.0.0 port 995
[Threads: 8 Sockets: 37 Clients: 0 Served: 0 Errors: 0] (?=Help): Segmentation fault (core dumped)

(This is a stock default environment, no configuration other than what was extract from the git repository.)

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Re: aarch64?
By: deon to Digital Man on Thu Oct 10 2024 11:09 am

Well, it compiles, but core dumps when you run sbbs

Are you using a distro-supplied build of libmozjs or building from source?
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digital man (rob)

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Re: aarch64?
By: Digital Man to deon on Wed Oct 09 2024 06:12 pm

Hi,

Well, it compiles, but core dumps when you run sbbs

Are you using a distro-supplied build of libmozjs or building from source?

Distro, as per the instructions on the wiki page: (from debian archives)

root@52159e86af1a:/opt/sbbs# apt list --installed|grep ffi libffi6/oldoldstable,now 3.2.1-6 arm64 [installed,automatic] libffi7/oldstable,now 3.3-6 arm64 [installed,automatic]

root@52159e86af1a:/opt/sbbs# apt list --installed|grep libmoz libmozjs185-1.0/oldoldstable,now 1.8.5-1.0.0+dfsg-6 arm64 [installed] libmozjs185-dev/oldoldstable,now 1.8.5-1.0.0+dfsg-6 arm64 [installed]

While the wiki page lists "stretch" as the debian image, I'm using bookworm as the base.


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Re: aarch64?
By: Digital Man to deon on Thu Oct 10 2024 11:51 am

Howdy,

When I wrote those instructions, they were for a 32-bit ARM build, not 64-bit. You might have better luck building libmozjs from source (including in the sbbs git repo) and using that instead.

Filed in the "too hard" basket.

The person I was helping has decided to play with Mystic instead.


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Re: aarch64?
By: deon to Digital Man on Fri Oct 11 2024 08:24 am

Re: aarch64?
By: Digital Man to deon on Thu Oct 10 2024 11:51 am

Howdy,

When I wrote those instructions, they were for a 32-bit ARM build, not 64-bit. You might have better luck building libmozjs from source (including in the sbbs git repo) and using that instead.

Filed in the "too hard" basket.

It's actually the default build option: by *not* including the JSLIB option on the make command-line, that's what happens. :-)

The person I was helping has decided to play with Mystic instead.

Okay, cool. Best of luck to them then.
--
digital man (rob)

Rush quote #1:
Danger plus survival equals fun. - Neil Peart
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When I wrote those instructions, they were for a 32-bit ARM build, not 64-bit. You might have better luck building libmozjs from source (including in the sbbs git repo) and using that instead.

Didn't work for me when I tried building libmozjs from source (same error as reported in original post: configure: error: "libffi has not been ported to aarch64-unknown-linux-gnu.")

But the 32-bit ARM instructions worked fine for 64-bit here. Just in case the friend decides to try sbbs again, here's the full log of commands I executed:

---
apt install build-essential perl zip git gdb libarchive-dev libncursesw5-dev libnspr4-dev libmosquitto-dev libsystemd-dev libcap-dev xorg-dev libsdl2-dev libgtk-3-dev libglade2-dev python3 python-is-python3 lrzsz gkermit

wget http://archive.debian.org/debian/pool/main/libf/libffi/libffi6_3.2.1-6_arm 64.deb
apt install ./libffi6_3.2.1-6_arm64.deb
wget http://archive.debian.org/debian/pool/main/m/mozjs/libmozjs185-1.0_1.8.5-1 .0.0+dfsg-6_arm64.deb
apt install ./libmozjs185-1.0_1.8.5-1.0.0+dfsg-6_arm64.deb
wget http://archive.debian.org/debian/pool/main/m/mozjs/libmozjs185-dev_1.8.5-1 .0.0+dfsg-6_arm64.deb
apt install ./libmozjs185-dev_1.8.5-1.0.0+dfsg-6_arm64.deb

mkdir /sbbs
cd /sbbs
wget https://gitlab.synchro.net/main/sbbs/-/raw/master/install/GNUmakefile
make install SYMLINK=1 NOCAP=1 JSINCLUDE=/usr/include/js JSLIB=mozjs185
---

uname -a reports: Linux rpi-bookworm-arm64 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux

And logging in via telnet report

Re: aarch64?
By: Digital Man to deon on Thu Oct 10 2024 03:22 pm

Howdy,

It's actually the default build option: by *not* including the JSLIB option on the make command-line, that's what happens. :-)

Yes, that's my default build option too - but it too didnt work.

libffi complains about not knowing about aarch64 (from memory)...


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Re: aarch64?
By: Ree to Digital Man on Thu Oct 10 2024 08:52 pm

Howdy,

But the 32-bit ARM instructions worked fine for 64-bit here. Just in case the friend decides to try sbbs again, here's the full log of commands I executed:

Thanks, that's pretty much what I had as well - but it core dumps after starting (clean environment, new install, no configuration).

10/11 13:31:09 srvc WSS listening on socket :: port 11235
10/11 13:31:09 srvc 0000 Services thread started (18 service sockets bound) [Threads: 9 Sockets: 38 Clients: 0 Served: 0 Errors: 0] (?=Help): Segmentation fault (core dumped)
root@badd3ace98bf:/opt/sbbs# uname -a
Linux badd3ace98bf 5.14.0-362.24.1.el9_3.aarch64 #1 SMP PREEMPT_DYNAMIC Wed Mar 13 14:53:45 EDT 2024 aarch64 GNU/Linux

Same old dependancy files:

root@badd3ace98bf:/opt/sbbs# dpkg -l
ii libmozjs185-1.0 1.8.5-1.0.0+dfsg-6 arm64 SpiderMonkey JavaScript engine
ii libmozjs185-dev 1.8.5-1.0.0+dfsg-6 arm64 SpiderMonkey JavaScript library - development headers
ii libffi6:arm64 3.2.1-6 arm64 Foreign Function Interface library runtime

gdb backtrace was provided previously...

sbbs would only stay running if I start it with "sbbs s- ne", but as soon as I telneted to it, it segfaulted.


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Re: aarch64?
By: deon to Digital Man on Fri Oct 11 2024 08:24 am

Re: aarch64?
By: Digital Man to deon on Thu Oct 10 2024 11:51 am

Howdy,

When I wrote those instructions, they were for a 32-bit ARM build, not 64-bit. You might have better luck building libmozjs from source (including in the sbbs git repo) and using that instead.

Filed in the "too hard" basket.

The person I was helping has decided to play with Mystic instead.

NOOOOOOO!
we lost another one to mystic!
the pain!! the pain!!
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