Jeffrey Walton, le mar. 10 mars 2026 09:05:37 -0400, a ecrit:
> > I don't know what this cfarm is about,
> 
> CFarm is the GCC Compile Farm.

Oh, cool addition, thanks!

Samuel

>   It is where FOSS developers go to test their
> software on different pieces of hardware and software.  Hurd is a popular
> choice on the CFarm because it has a lot of personality.
> 
> Also see <[1]https://gcc.gnu.org/wiki/CompileFarm>.
> 
> Jeff
> 
> On Tue, Mar 10, 2026 at 8:20 AM Samuel Thibault <[2][email protected]>
> wrote:
> 
>     Hello,
> 
>     I don't know what this cfarm is about, but:
> 
>     - FI, mosh should build fine
>     - I'm surprised by the 6G limitation on 64b, I'm running a 16G VM
>     without a problem.
>     - tmpfs shouldn't be used, see
>     [3]https://darnassus.sceen.net/~hurd-web/open_issues/tmpfs/
>     - the 128GB limitation on 32b can be avoided by using rumpdisk, see
>     [4]https://darnassus.sceen.net/~hurd-web/faq/2_gib_partition_limit/
>     [5]https://darnassus.sceen.net/~hurd-web/hurd/rump/rumpdisk/
> 
>     Samuel
> 
>     Jeffrey Walton, le mar. 10 mars 2026 08:12:53 -0400, a ecrit:
>     > FYI...
>     >
>     > Original message at <[1][6]https://lists.tetaneutral.net/pipermail/
>     cfarm-users/
>     > 2026-March/001542.html>.
>     >
>     > ---------- Forwarded message ---------
>     > From: Luke Yasuda via cfarm-users <[2][7]
>     [email protected]>
>     > Date: Tue, Mar 10, 2026 at 7:11 AM
>     > Subject: [cfarm-users] cfarm{431,432}: hurd-{amd64,i386}
>     > To: Cfarm Users <[3][8][email protected]>
>     > Cc: Luke Yasuda <[email protected]>
>     >
>     > Hi all,
>     >
>     > The two Debian GNU/Hurd VMs, cfarm431 (hurd-amd64) and cfarm432
>     > (hurd-i386) are available now. But they need some "special lovin'" as
>     > the highest uptime record on munin is 5.61 days so far. On the spirit of
>     > sharing notes and experience and hoping someone on the mailing list
>     > might have some insights:
>     >
>     > common issues on hurd-*:
>     > 1. ntp or chrony or any other NTP implementation (that I know of) won't
>     > work. If you notice that the time is skewed, email me so I can correct
>     > it manually.
>     > 2. we have very limited CPU and RAM resources (also see below). Large
>     > builds can take days. Coordination among users may be necessary. We
>     > should use this mailing list to coordinate when the time comes. If
>     > posting on this list is "too loud" etc (if anyone complains), I can
>     > create a mailing list under @lists.jing.rocks (mailman3 managed)
>     > 3. upgrading hurd and glibc might crash and even cause the system to be
>     > unbootable. So, from now on, I'll make a snapshot before upgrading them.
>     > Basically I check for package upgrades about once a week.
>     > 4. I absolutely cannot get IPv6 to work. I wrote a custom init script
>     > (/etc/init.d/networking-real) because ifupdown doesn't implement IPv6 on
>     > hurd yet.
>     > 5. mosh is not available. fstrim is not available. As well as so many
>     > other packages.
>     > 6. hurd does not support having 2 or more IPv4 addresses or configuring
>     > two or more netif (not including loopback "lo").
>     > 7. sshd may not be working at all when it's started on boot, needs to be
>     > restarted on tty by hand:
>     >
>     > Mar 10 10:37:29 cfarm432 sshd[860]: error: ppoll: Computer bought the
>     > farm
>     > Mar 10 10:38:00 cfarm432 last message repeated 350578 times
>     > Mar 10 10:38:02 cfarm432 last message repeated 25942 times
>     >
>     >
>     > hurd-amd64:
>     > 1. only 1 core is available. I cannot get the SMP kernel
>     > (gnumach-image-1-amd64-smp) to boot, it just resets itself after grub
>     > loads gnumach. I don't intend to debug it due to the lack of skills
>     > 2. only 6GB RAM is available. Again, it resets itself at boot time when
>     > there is more than about 8GB system memory
>     > 3. /home is 500GB large (not an issue per se). After a system crash, it
>     > may take 15 min or so for e2fsck to check and fix the file system.
>     > 4. recently, every 3~5 days or so, for some reason, /hurd/tmpfs will
>     > crash and also bring down the networking.
>     >
>     > hurd-i386:
>     > 1. similar to hurd-amd64, only 1 core is available. I cannot get the SMP
>     > kernel (gnumach-image-1-486-smp) to boot
>     > 2. only 3GB RAM is available. I cannot get the PAE kernel
>     > (gnumach-image-1-486-pae) to boot
>     > 3. /home is only 128GB large. hurd-i386 cannot recognize a disk larger
>     > than 128GB, any disk larger than 128GB will just appear to be 128GB,
>     > which seems to be an ancient C/H/S addressing limitation existed in
>     > windows 2000 if I remember it correctly. So, the space is tight and
>     > remember to clean up after yourself, dear friends.
>     >
>     > Cheers,
>     > --
>     > Luke Yasuda
>     > GPG Fingerprint: 4E09 8D19 00AA 3F72 1899 2614 09B3 316E 13A1 1EFC
>     > _______________________________________________
>     > cfarm-users mailing list
>     > [4][9][email protected]
>     > [5][10]https://lists.tetaneutral.net/listinfo/cfarm-users
>     >
>     > References:
>     >
>     > [1] [11]https://lists.tetaneutral.net/pipermail/cfarm-users/2026-March/
>     001542.html
>     > [2] mailto:[12][email protected]
>     > [3] mailto:[13][email protected]
>     > [4] mailto:[14][email protected]
>     > [5] [15]https://lists.tetaneutral.net/listinfo/cfarm-users
> 
>     > -----BEGIN PGP SIGNATURE-----
>     >
>     > iHUEARYIAB0WIQQUNK5y7dM5LGmlOjiPRdGe/wwPKwUCaa/8DAAKCRCPRdGe/wwP
>     > K/QGAP9/xZcqHW6V5R77U92WGRB96Pua8k33JFBa+Z5L1qdfVwD7Bhs/6MDSfwqQ
>     > yvWhm52pBe5ZwSsKeyy1kjtgj4Djcg0=
>     > =YJgL
>     > -----END PGP SIGNATURE-----
> 
> 
> References:
> 
> [1] https://gcc.gnu.org/wiki/CompileFarm
> [2] mailto:[email protected]
> [3] https://darnassus.sceen.net/~hurd-web/open_issues/tmpfs/
> [4] https://darnassus.sceen.net/~hurd-web/faq/2_gib_partition_limit/
> [5] https://darnassus.sceen.net/~hurd-web/hurd/rump/rumpdisk/
> [6] https://lists.tetaneutral.net/pipermail/cfarm-users/
> [7] mailto:[email protected]
> [8] mailto:[email protected]
> [9] mailto:[email protected]
> [10] https://lists.tetaneutral.net/listinfo/cfarm-users
> [11] 
> https://lists.tetaneutral.net/pipermail/cfarm-users/2026-March/001542.html
> [12] mailto:[email protected]
> [13] mailto:[email protected]
> [14] mailto:[email protected]
> [15] https://lists.tetaneutral.net/listinfo/cfarm-users

-- 
Samuel
<N> un driver qui fait quoi, alors ?
<y> ben pour les bips
<s> pour passer les oops en morse
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