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 https://darnassus.sceen.net/~hurd-web/open_issues/tmpfs/ - the 128GB limitation on 32b can be avoided by using rumpdisk, see https://darnassus.sceen.net/~hurd-web/faq/2_gib_partition_limit/ 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]https://lists.tetaneutral.net/pipermail/cfarm-users/ > 2026-March/001542.html>. > > ---------- Forwarded message --------- > From: Luke Yasuda via cfarm-users <[2][email protected]> > Date: Tue, Mar 10, 2026 at 7:11 AM > Subject: [cfarm-users] cfarm{431,432}: hurd-{amd64,i386} > To: Cfarm Users <[3][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][email protected] > [5]https://lists.tetaneutral.net/listinfo/cfarm-users > > References: > > [1] https://lists.tetaneutral.net/pipermail/cfarm-users/2026-March/001542.html > [2] mailto:[email protected] > [3] mailto:[email protected] > [4] mailto:[email protected] > [5] https://lists.tetaneutral.net/listinfo/cfarm-users > -----BEGIN PGP SIGNATURE----- > > iHUEARYIAB0WIQQUNK5y7dM5LGmlOjiPRdGe/wwPKwUCaa/8DAAKCRCPRdGe/wwP > K/QGAP9/xZcqHW6V5R77U92WGRB96Pua8k33JFBa+Z5L1qdfVwD7Bhs/6MDSfwqQ > yvWhm52pBe5ZwSsKeyy1kjtgj4Djcg0= > =YJgL > -----END PGP SIGNATURE----- -- Samuel > C'est vrai. FreeBSD pourrait être bien s'il avait une licence > correcte. Oh, mon troll-ô-meter vient d'exploser... -+- OR in Guide du linuxien pervers - "Bien regler son troll-ô-meter"
